| brucella suis infections in collared peccaries in venezuela. | a bacteriologic and serologic study was conducted on two ranches in the states of apure and guarico, venezuela for brucellosis in collared peccaries (tayassu tajacu). one hundred thirty-nine peccaries were necropsied and tissues were cultured. forty-three isolations of brucella suis biovar 1, were made from lymph nodes and spleens of 25 males and 18 females. antibody to brucella sp. was detected in sera from 122 animals by the rapid plate agglutination, standard tube agglutination, 2-mer-captoet ... | 1991 | 1920669 |
| serologic survey for evidence of exposure to vesicular stomatitis virus, pseudorabies virus, brucellosis and leptospirosis in collared peccaries from arizona. | two hundred eighteen usable serum samples were collected from hunter-killed collared peccaries (tayassu tajacu) during march 1986, in three areas of arizona. evaluations for antibodies against vesicular stomatitis virus (vsv) new jersey (nj) type, vsv indiana type, pseudorabies virus, brucellosis, and leptospirosis revealed positive test results in 8%, 0%, less than 1%, 0%, and 23% of the sera, respectively. exposure of peccaries to vsv (nj) was widespread, but variation in the prevalence of ser ... | 1987 | 2824864 |
| vitamin a levels of blood in collared peccaries (tayassu tajacu) from south texas. | serum vitamin a concentrations were determined for 24 adult female collared peccaries from 1 captive and 2 wild populations during the period 30 january-15 march, 1983. normal serum vitamin a concentrations of well-fed captive peccaries (mean = 39.0 micrograms/dl) were slightly higher than the reported range of values for domestic swine. mean vitamin a concentrations of blood serum did not differ among the captive and 2 wild populations. however, a few individuals from the wild populations had l ... | 1987 | 2882908 |
| endocrine and metabolic responses of the collared peccary (tayassu tajacu) to immobilization with ketamine hydrochloride. | serial physiological responses were examined for 150 min from captive collared peccaries during immobilization with ketamine hydrochloride. rectal temperatures decreased significantly (p less than 0.01) during anesthesia. serum concentrations of total proteins, albumin, cholesterol, alanine aminotransferase, and calcium declined significantly (p less than 0.05) during the first 45 min post-immobilization before stabilizing. concentrations of lactate dehydrogenase and alkaline phosphatase in sera ... | 1985 | 3001372 |
| the distribution of lysine vasopressin (lysipressin) in placental mammals: a reinvestigation of the hippopotamidae (hippopotamus amphibius) and tayassuidae (tayassu angulatus) families. | the neurohypophyseal hormones of the hippopotamus (hippopotamus amphibius) and collared peccary (tayassu angulatus) were isolated by molecular sieving and preparative high-pressure liquid chromatography (hplc). oxytocin and arginine vasopressin have been identified by their amino acid compositions and their retention times in hplc. lysipressin (lysine vasopressin) was not detected in posterior pituitaries of two hippopotami and nine peccaries (less than 2% of arginine vasopressin in molar ratios ... | 1988 | 3192070 |
| comparative anatomy of the foramen ovale in the suina. | the structure of the foramen ovale from six species of suina was studied using the scanning electron microscope. in each species, the foramen ovale, when viewed from the terminal part of the caudal vena cava had the appearance of a short tunnel. in the domestic pig (sus scrofa), the wart hog (phacochoerus aethiopicus) and the bush pig (potamochoerus porcus) a fold of tissue projected from the caudal edge of the foramen ovale into the lumen of the left atrium. it constituted a large proportion of ... | 1988 | 3377202 |
| indices for physiological assessment of nutritional condition in pregnant collared peccaries (tayassu tajacu). | hematological and serum biochemical responses to two levels of dietary energy (high energy [he], 3300 kcal digestible energy [de]/kg; moderate energy [me], 2300 kcal de/kg) and protein (high protein [hp], 16.0% crude protein; moderate protein [mp], 8.4% crude protein) during gestation in 15 collared peccaries (tayassu tajacu) were examined. dietary energy and protein levels influenced body weight gain during gestation. red blood cell counts and lymphocyte concentrations were higher and neutrophi ... | 1988 | 3411706 |
| factors affecting the helminth community structure of adult collared peccaries in southern texas. | four species of nematodes (gongylonema pulchrum, parabronema pecariae, texicospirura turki, and physocephalus sexalatus) and one species of cestode (moniezia sp.) comprised the helminth fauna of adult collared peccaries (tayassu tajacu) from the plains in southern texas. the community structure of the helminth fauna of peccaries from this region was basically dissimilar to that from the more humid gulf coastal prairies of southern texas in composition (by the conspicuous absence of certain speci ... | 1985 | 4032623 |
| coccidioidomycosis (coccidioides immitis) in the collared peccary (tayassu tajacu: tayassuidae) in texas. | | 1985 | 4032630 |
| serum progesterone, estradiol-17 beta, and glucocorticoids in the collared peccary during gestation and lactation as influenced by dietary protein and energy. | sixteen pregnant collared peccaries were assigned to four experimental diets representing two levels of crude protein and two levels of digestible energy. serum levels of progesterone, estradiol-17 beta (e2), and glucocorticoids were measured by radioimmunoassay. there was no significant dietary effect (p greater than 0.05) associated with any hormone during gestation. progesterone did not differ between days 11 and 140 of gestation (x +/- se = 36.48 +/- 1.11 ng/ml, n = 72), began to decline dur ... | 1985 | 4043721 |
| the genetic distribution of vasopressins in the peccary (tayassu angulatus) and warthog (phacochoerus aethiopicus). | | 1969 | 5769950 |
| an electrophoretic characterization of serum proteins of the collared peccary (tayassu tajacu). | serum proteins of the collared peccary (tayassu tajacu) were analyzed by agarose gel electrophoresis for wild adult males and females, nursing young, and reproductively-active females in captivity. electrophoretic profiles of the adult peccary showed at least six distinct protein bands corresponding to the fractions: albumin, alpha-1, alpha-2, beta-1, beta-2, and gamma globulin. globulin fractions of the peccary had different mobilities from the domestic swine. the only sexual dimorphisms were a ... | 1984 | 6518761 |
| serum chemistry of the collared peccary (tayassu tajacu). | values of serum biochemistry were obtained for 33 adult (16 male and 17 female) and six juvenile (four male and two female) collared peccaries collected by trapping and drugging animals from southern texas during the period july through september 1982. only cholesterol and aspartate aminotransferase concentrations differed significantly with respect to sex. juvenile peccaries had significantly lower concentrations of total protein and globulins, but had higher concentrations of glucose, triglyce ... | 1984 | 6737608 |
| pathogenicity of morbilliviruses for terrestrial carnivores. | many different species of the order carnivora are susceptible to canine distemper and the mortality rate varies greatly between species. ailuridae, canidae, hyaenidae, mustelidae, procyonidae, ursidae, viverridae and now felidae have been reported to be susceptible to canine distemper virus infection. although distemper outbreaks in dogs, fur farms and in zoo carnivores have been greatly reduced in recent years due to vaccination, there are still regular outbreaks in free-living carnivores. unex ... | 1995 | 8588312 |
| parasites and selected diseases of collared peccaries (tayassu tajacu) in the trans-pecos region of texas. | fifty-five collared peccaries (tayassu tajacu) were collected from october 1988 through april 1991 from five counties within the trans-pecos region of texas (usa) to monitor for diseases and parasites. no endoparasites were recovered on gross examination. antibody to borrelia burgdorferi was documented in one (2%) of 55 specimens. three (6%) of 54 collared peccaries were positive for yersinia pestis antibodies. all collared peccaries were negative for antibodies against brucella spp., francisell ... | 1996 | 8827690 |
| a swine sine (pre-1 sequence) distribution in swine-related animal species and its phylogenetic analysis in swine genome. | the distribution of pre-1 sequence (a swine sine) among the animal species related to sus scrofa, i.e. phacochoerus aethiopicus and tayassu tajacu, was examined by dot-blot analysis using pre-1 sequences as a probe. this revealed that phacochoerus aethiopicus and tayassu tajacu contained pre-1 sequences, amounts of which in their genomes are almost the same as that in the swine genome, indicating that these species separated after pre-1 sequences proliferated to diversify in the genome. in order ... | 1996 | 8856898 |
| immobilization of collared peccaries (tayassu tajacu) and feral hogs (sus scrofa) with telazol and xylazine. | a 1:1 mg mixture of telazol and xylazine hydrochloride (100 mg of telazol and 100 mg of xylazine per ml) was used to immobilize wild collared peccaries (tayassu tajacu) and feral hogs (sus scrofa); mean (+/-sd) intramuscular dosage rate was 4.73 +/- 0.86 mg/kg and 4.35 +/- 0.68 mg/kg for peccaries (n = 107) and hogs (n = 49), respectively. mean (+/-sd) induction time (time from injection until complete immobilization) was 4.6 +/- 2.5 minutes for collared peccaries and 4.4 +/- 1.9 for hogs. pecca ... | 1997 | 9027707 |
| some bacterial enteropathogens in wildlife and racing pigeons from trinidad. | fecal and cloacal swabs or feces of wild mammalian, avian and reptilian species, either farmed or free-ranging, and of racing pigeons (columba livia) kept in lofts were cultured for salmonella spp., campylobacter spp., and yersinia spp. of 291 free-ranging mammals tested, 6 (2%) and 1 (< 1%) yielded positive cultures of salmonella spp. and campylobacter spp., respectively. salmonella newport was the predominant serotype isolated and the opossum (didelphis marsupialis insularis) had the significa ... | 1998 | 9476228 |
| evolution of the trappin multigene family in the suidae. | trappins are a group of secretory proteins containing a wap motif with an anchoring domain. previous studies showed that their genes, especially those of pig, have undergone rapid evolution, which produced trappins with a broad spectrum of actions. to understand the evolution of such a rapidly evolving multigene family, we isolated trappin genes of the artiodactyla, including pig, wart hog, collared peccary, hippopotamus, and cow, by means of polymerase chain reaction (pcr). two genes newly isol ... | 1998 | 9722657 |
| neuropeptide y receptor gene y6: multiple deaths or resurrections? | the neuropeptide y family of g-protein-coupled receptors consists of five cloned members in mammals. four genes give rise to functional receptors in all mammals investigated. the y6 gene is a pseudogene in human and pig and is absent in rat, but generates a functional receptor in rabbit and mouse and probably in the collared peccary (pecari tajacu), a distant relative of the pig family. we report here that the guinea pig y6 gene has a highly distorted nucleotide sequence with multiple frame-shif ... | 2000 | 11027673 |
| description of males of parabronema pecariae ivaschkin, 1960 (nematoda, habronematoidea) parasitizing peccaries (mammalia, tayassuidae) in brazil. | nematodes studied herein and identified as parabronema pecariae were collected in 1936 in the states of rio de janeiro and pará and in 1940 in the state of mato grosso do sul, brazil. this species was proposed, with basis on female specimens that had been described earlier as parabronema sp. although the presence of males of p. pecariae was previously reported in brazil, their description was not provided. the present paper deals with the first complete morphometric data on male specimens of p. ... | 2000 | 11080772 |
| phylogenetic relationships of asian and european pig breeds determined by mitochondrial dna d-loop sequence polymorphism. | phylogenetic relationships among asian and european pig breeds were assessed using 1036 bp of mitochondrial dna (mtdna) d-loop sequences. an unweighted pair-group method with arithmetic mean (upgma) tree was constructed on the basis of maximum likelihood distances using sequences determined for three cheju (korea), 11 chinese, one westran (australian feral origin) and two european pigs (berkshire and welsh), and also published sequences for four japanese (including two wild boars), one yucatan m ... | 2002 | 11849133 |
| transitional cell carcinoma metastatic to the eye in a collared peccary (tayassu tajacu). | a 15-year-old female collared peccary (tayassu tajacu) was presented for ophthalmic examination following sudden onset of blindness. bilateral retinal detachment was diagnosed, neoplasia suspected, and euthanasia performed. widespread tumor dissemination was apparent at autopsy, and transitional cell carcinoma was diagnosed histologically. the tumor was identified as arising from the ovary. epidemiologic features of this case are discussed. | 2002 | 12236879 |
| ticks (acari: ixodidae) on wild animals from the porto-primavera hydroelectric power station area, brazil. | from june 2000 to june 2001, a total of 741 ticks were collected from 51 free-living wild animals captured at the porto-primavera hydroelectric power station area, located alongside an approximately 180 km course of the paran river, between the states of s o paulo and mato grosso do sul, comprising 9 species of 3 genera: ambly-omma (7 species), boophilus (1) and anocentor (1). a total of 421 immature amblyomma ticks were reared in laboratory until the adult stage, allowing identification of the ... | 2003 | 12563479 |
| serologic survey for antibodies to canine distemper virus in collared peccary (tayassu tajacu) populations in arizona. | in 1989, a disease outbreak was observed among collared peccaries (javelina, tayassu tajacu) in southern arizona (usa) and canine distemper virus (cdv) was isolated from affected animals. subsequently, 364 sera were collected from hunter-harvested javelina over a 4 yr period (1993-96) and were tested for antibody to cdv. neutralizing antibody to cdv was detected in 58% of the serum samples suggesting that cdv infection is probably enzootic in the collared peccary populations of southern arizona. | 2003 | 12685087 |
| genotyping of clostridium perfringens isolated from domestic and exotic ruminants and swine. | clostridium perfringens types a, b, c, d and e are known to cause severe enteritis/enterotoxaemia and diseases (especially caused by type a) belonging to the gas oedema complex in many species. samples from the small intestine as well as faeces of domestic and exotic animals suffering from enterotoxaemic signs or having died within days after first occurance of toxaemia were submitted for typing c. perfringens toxovars by multiplex pcr. the following species have been investigated: domestic shee ... | 2003 | 14535937 |
| relative age of proviral porcine endogenous retrovirus sequences in sus scrofa based on the molecular clock hypothesis. | porcine endogenous retroviruses (perv) are discussed as putative infectious agents in xenotransplantation. perv classes a, b, and c harbor different envelope proteins. two different types of long terminal repeat (ltr) structures exist, of which both are present only in perv-a. one type of ltr contains a distinct repeat structure in u3, while the other is repeatless, conferring a lower level of transcriptional activity. since the different ltr structures are distributed unequally among the provir ... | 2003 | 14581574 |
| retroviral safety: analyses of phylogeny, prevalence and polymorphisms of porcine endogenous retroviruses. | porcine endogenous retroviruses (perv) are discussed as putative infectious agents in xenotransplantation (xtx). perv classes a, b, and c harboring different envelope proteins and two types of long terminal repeat (ltr) structures exist. one type of ltr contains a distinct repeat structure in u3, while the other is repeat-less and confers poor transcriptional activity. as the different ltr structures were found to be distributed unequally among the proviruses, we were interested in determining w ... | 2003 | 15114941 |
| placental glycosylation in peccary species and its relation to that of swine and dromedary. | comparison has been made between glycans at the fetomaternal interface of two tayassu species (new world peccaries or wild pigs) and those of swine (true pigs) and dromedary, which have similar epitheliochorial placentae. plastic sections of near-term fetomaternal interface from tayassu tajacu (120 days gestation) and tayassu pecari (140 days gestation) were stained with 20 lectins and compared with those of swine (109 days) and dromedary (375 days). both tayassu species showed similar staining ... | 2004 | 15193872 |
| comparative chromosome painting between the domestic pig (sus scrofa) and two species of peccary, the collared peccary (tayassu tajacu) and the white-lipped peccary (t. pecari): a phylogenetic perspective. | the suidae and the dicotylidae (or tayassuidae) are related mammalian families, both belonging to the artiodactyl suborder suiformes, which diverged more than 37 million years ago. cross-species chromosome painting was performed between the domestic pig (sus scrofa; 2n = 38), a representative of the suidae, and two species of the dicotylidae: the collared peccary (tayassu tajacu; 2n = 30) and the white-lipped peccary (t. pecari; 2n = 26). g-banded metaphase chromosomes of the two peccaries were ... | 2004 | 15218266 |
| nuclear and mitochondrial evolutionary analyses of collared, white-lipped, and chacoan peccaries (tayassuidae). | the three extant peccary species, the chacoan (catagonus wagneri), the white-lipped (tayassu pecari) and the collared (pecari tajacu), are morphologically and chromosomally distinct and confined to the new world. there is ongoing paleontological, cytogenetic, and molecular debate about phylogenetic relationships among them. to contribute to the understanding of tayassuidae phylogeny, three mitochondrial (control region, cytochrome b, and 12s rrna) and five nuclear (k-casein, thyrotropin, tyrosin ... | 2005 | 15579391 |
| a health evaluation in a colony of captive collared peccaries (tayassu tajacu) in the eastern amazon. | this study pretends to determine baseline data on the health and mortality of a colony of captive collared peccaries in the eastern amazon (belém, state of pará, brazil) during a 65-months survey. thirty-nine out of 166 animals (23.5%) died and were examined post-mortem. monthly mortality averaged 1.2%. the highest mortality rate was observed in newborns (74.4%). abandonment by the mother and aggression were responsible for 24.1% and 13.8% of the total newborn deaths, respectively. most frequent ... | 2006 | 16487552 |
| parasites of the collared peccary from texas. | results of a survey of the parasites of the collared peccary (dicotyles tajacu angulatus) in texas are presented. three ectoparasites, amblyomma cajennense, dermacentor variabilis, and pulex porcinus were very common on peccaries from south texas, but less common or absent in arid west texas. sucking lice, pecaroecus javalii, were common on peccaries from west texas, but were not found in south texas. the known range of this louse in texas is extended into the big bend area. two ticks, amnblyomm ... | 1970 | 16509125 |
| high-resolution comparative chromosome painting in the arizona collared peccary (pecari tajacu, tayassuidae): a comparison with the karyotype of pig and sheep. | we used chromosome painting with chromosome-specific probes derived from domestic sheep and pig for a high-resolution cytogenetic comparison with the karyotype of collared peccary (pecari tajacu sonoriensis). a reorganization of the karyotype involving at least 62-66 conserved segments were observed between the sheep and collared peccary. this is an extremely high number compared with other members of the same mammalian order (cetartiodactyla). the comparison between pig and collared peccary, bo ... | 2006 | 16628495 |
| species-specific visitation and removal of baits for delivery of pharmaceuticals to feral swine. | within the domestic swine industry there is growing trepidation about the role feral swine (sus scrofa) play in the maintenance and transmission of important swine diseases. innovative disease management tools for feral swine are needed. we used field trials conducted in southern texas from february to march 2006 to compare species-specific visitation and removal rates of fish-flavored and vegetable-flavored baits with and without commercially available raccoon (procyon lotor) repellent (trial 1 ... | 2007 | 17699086 |
| evolution of suiform aromatases: ancestral duplication with conservation of tissue-specific expression in the collared peccary (pecari tayassu). | aromatase cytochrome p450 (p450arom), the enzyme that catalyzes estrogen synthesis, is required for successful reproduction and is encoded by a single copy gene (cyp19) in most mammals. however, pigs and their distant suiform relatives the peccaries experienced cyp19 duplication. here, the evolutionary origin of cyp19 duplication, and the evolution of the gene paralogs, was explored further in collared peccaries (pecari tayassu). exons iv and v, and the intervening intron, representing duplicate ... | 2007 | 17912474 |
| suiformes orthologous satellite dnas as a hallmark of pecari tajacu and tayassu pecari (tayassuidae) evolutionary rearrangements. | in a broad general way, eukaryotic satellite dna sequences are characterized by a highly dynamic molecular behavior due to concerted evolution that leads to rapid change between repeat sequences of different species, achieved by amplification of new variants during speciation or by gradual sequence evolution due to the accumulation of nucleotide substitutions. there are, although exceptions for this almost universal rule. we isolated variants from both the mc1 and ac2 pig (sus scrofa, suidae) sa ... | 2008 | 18440236 |
| the role played by sympatric collared peccary (tayassu tajacu), white-lipped peccary (tayassu pecari), and feral pig (sus scrofa) as maintenance hosts for trypanosoma evansi and trypanosoma cruzi in a sylvatic area of brazil. | the brazilian pantanal has been considered one of the richest and most diverse wetland ecosystems in the world. it is occupied by cattle ranching, and a variety of wildlife species share the same habitats with domestic livestock. we investigated infections of trypanosoma evansi and trypanosoma cruzi in the sympatric suiformes-collared peccary (tayassu tajacu), white-lipped peccary (tayassu pecari), and feral pig (sus scrofa) by parasitological, serological, and molecular tests. additionally, we ... | 2008 | 18493795 |
| monitoring of leptospirosis seroprevalence in a colony of captive collared peccaries (tayassu tajacu) from the peruvian amazon. | leptospirosis, an endemic zoonoses, is maintained in the environment by several wildlife species in the peruvian amazon. in order to evaluate the possible role of collared peccaries (cp) in the maintenance this disease, two serological surveys of leptospirosis were performed and zootechnical parameters were monitored in a captive cp colony in an interval of 27 months. total seroprevalence changed from 100% (n=27) to 86.4% (n=22), with reactions to a diversity of serogroups of zoonotic importance ... | 2009 | 19000627 |
| the influence of urea feeding on the bacterial and archaeal community in the forestomach of collared peccary (artiodactyla, tayassuidae). | this study was carried out to test whether bacterial and archaeal populations, and products of fermentation in each compartment of collared peccary stomach, vary significantly with urea feeding. bacteria and archaeal population variation among the four stomach compartments were also compared. | 2009 | 19457035 |
| passage marker excretion in red kangaroo (macropus rufus), collared peccary (pecari tajacu) and colobine monkeys (colobus angolensis, c. polykomos, trachypithecus johnii). | ruminants are characterized by an efficient particle-sorting mechanism in the forestomach (frst) followed by selective rechewing of large food particles. for the nonruminating foregut fermenter pygmy hippo it was demonstrated that large particles are excreted as fast as, or faster than, the small particles. the same has been suggested for other nonruminating foregut fermenters. we determined the mean retention time of fluids and different-sized particles in six red kangaroos (macropus rufus), se ... | 2009 | 19551808 |
| spermatogenic cycle length and sperm production in a feral pig species (collared peccary, tayassu tajacu). | although the collared peccary (tayassu tajacu) is found throughout the americas, with a high potential for domestication and commercial exploitation, there are few data on the reproductive biology of this mammalian species. the aim of the present study was to investigate testis structure, spermatogenic cycle length, sertoli cell efficiency, and spermatogenic efficiency. twelve adult peccaries were used for biometrical, histological, and stereological analyses; 3 of these peccaries received intra ... | 2010 | 19745218 |
| salmonellosis in a free-ranging population of javelinas (pecari tajacu) in south central arizona. | the javelina, or collared peccary (pecari tajacu), is indigenous to arizona, new mexico, and texas in the united states and ranges throughout latin america. from june 2004 to april 2005, an estimated 105 javelinas died in a mortality event that occurred in tucson, arizona, and neighboring areas. clinical signs observed in sick animals included emaciation, dehydration, lethargy, and diarrhea. in addition, some animals showed labored breathing and hind limb weakness. we necropsied 34 animals, and ... | 2009 | 19901370 |
| seed predation by mammals in forest fragments in monteverde, costa rica. | few studies have evaluated seed predation in fragmented landscapes, in which lower species diversity is expected to modifying ecological interactions. the rates of seed removal by mammals were investigated in a continuous forest and two fragmented patches of premontane tropical moist forest, in monteverde, costa rica. the composition of mammalian seed-predators in each site was recorded during 16 months. the removal of four native tree species of experimental seeds: ocotea valeriana and ocotea w ... | 2009 | 19928478 |
| [diversity of wild and domestic mammal's intestinal helminths from the caatinga of the parque nacional serra da capivara, southeast of piauí, brazil]. | biodiversity studies allow ecosystem assessment and monitoring of environmental changes and impacts. parasite diversity could reflect the host/ parasite coevolutionary process and the environment changes that permit the loss, gain or maintenance of species. this survey used species/morphotypes of helminths eggs found in feces from seven wild mammal species (the groups dasypodidae and large cats, and tamandua tetradactyla, cebus apella, alouatta caraya, cerdocyon thous, pecari tajacu) and from tw ... | 2009 | 20040186 |
| use of a mycoplasma suis-pcr protocol for screening a population of captive peccaries (tayassu tajacu and tayassu pecari). | mycoplasma suis is a hemotropic bacteria of red blood cells and the causative agent of swine eperythrozoonosis. diagnosis of infection may be reached by direct examination of blood smears; however, the use of polymerase chain reaction (pcr) of the 16s rna gene of m. suis improves the sensitivity and specificity of detection. the aim of this study was to screen peccaries (tayassu tajacu and t. pecari) for m. suis infection using a specific conventional pcr. a total of 28 blood samples from captiv ... | 2011 | 21439238 |
| evaluation of genetic variability in the collared peccary pecari tajacu and the white-lipped peccary tayassu pecari by microsatellite markers. | in this study, the microsatellite technique was used to evaluate the genetic variability in populations of collared and white-lipped peccaries kept in captivity. six primers developed for domestic pigs were used and amplified in both species. they revealed the presence of five polymorphic loci and one monomorphic locus. the polymorphic loci included 4 of the 16 alleles in collared peccaries, and 3 of the 10 alleles in the white-lipped peccaries. polymorphic information content (pic) in both spec ... | 2010 | 21637606 |
| Necrotic enteritis in collared (Pecari tajacu) and white-lipped (Tayassu pecari) peccaries. | An outbreak of necrotic enteritis caused by Clostridium perfringens type C was diagnosed in captive collared (Pecari tajacu) and white-lipped (Tayassu pecari) peccaries housed in the Laboratory of Applied Ethology of Universidade Estadual de Santa Cruz located in Ilhéus, State of Bahia, Brazil. Four collared peccaries and three white-lipped peccaries, all juveniles (25-105 days old), were affected. For all affected animals, lethargy and inappetance were followed by sudden death within 24 hours. ... | 2011 | 22204072 |
| a review of the nutritional content and technological parameters of indigenous sources of meat in south america. | meat yields, proximate compositions, fatty acids compositions and technological parameters are reviewed for species which might be further developed as indigenous sources of meat in south america. these include the alpaca (lama pacos), capybara (hydrochoerus hydrochaeris), guanaco (lama guanicoe), llama (lama glama), nutria (myocastor coypus), collared peccary (tayassu tajacu), greater rhea (rhea americana), lesser rhea (rhea pennata), yacare (caiman crocodilus yacare), tegu lizard (tupinambis m ... | 2008 | 22063568 |
| aggressive behavior and related phenomena in the collared peccary. | | 2016 | 5063958 |
| diet overlap and foraging activity between feral pigs and native peccaries in the pantanal. | inter-specific competition is considered one of the main selective pressures affecting species distribution and coexistence. different species vary in the way they forage in order to minimize encounters with their competitors and with their predators. however, it is still poorly known whether and how native species change their foraging behavior in the presence of exotic species, particularly in south america. here we compare diet overlap of fruits and foraging activity period of two sympatric n ... | 2015 | 26536608 |
| can scat analysis describe the feeding habits of big cats? a case study with jaguars (panthera onca) in southern pantanal, brazil. | large cats feeding habits have been studied through two main methods: scat analysis and the carcasses of prey killed by monitored animals. from november 2001 to april 2004, we studied jaguar predation patterns using gps telemetry location clusters on a cattle ranch in southern pantanal. during this period, we recorded 431 carcasses of animals preyed upon by monitored jaguars. concurrently, we collected 125 jaguar scats opportunistically. we compared the frequencies of prey found through each met ... | 2016 | 27002524 |
| experimental infection of collared peccary ( dicotyles tajacu angulatus ) with swine kidney worm ( stephanurus dentatus ). | two captive-born juvenile collared peccaries ( dicotyles tajacu angulatus ) were given 3000 infective larvae of stephanurus dentatus per os. one peccary harbored viable s. dentatus sub-adults in the liver 50 days post-infection. the other peccary had no larvae but did have diffuse fibrotic hepatic lesions and bile duct hyperplasia 213 days post-infection; however, the lesions may have been partially due to a concurrent ascaris suum infection. a domestic pig ( sus scrofa domesticus ) infected as ... | 1977 | 24228971 |
| orbivirus infections in collared peccaries (tayassu tajacu) in southeastern brazil. | we surveyed 49 free-living collared peccaries (pecari tajacu) in brazil for antibodies against bluetongue virus (btv) and porcine circovirus 2 (pcv2). antibodies against btv were detected in 19/49 (39%) samples. all samples were negative for pcv2. the importance of antibodies to btv in collared peccaries remains to be determined. | 2012 | 22247399 |
| swine infectious agents in tayassu pecari and pecari tajacu tissue samples from brazil. | peccaries and pigs, tayassuidae and suidae respectively, diverged approximately one million years ago from a common ancestor. because these families share some pathogens, peccaries can act as reservoirs of infectious pathogens for domestic and wild swine. we evaluated the presence of swine infectious agents in the spleen and lung tissues of white-lipped peccaries (wlp; tayassu pecari) and collared peccaries (cp; pecari tajacu) in brazil. samples from 10 adult cp and three wlp, which had been hun ... | 2014 | 24484498 |
| mycobacterium bovis infection in a collared peccary (tayassu tajacu): insights on tuberculosis wild reservoirs. | | 2012 | 22818660 |
| use of filter papers to determine seroprevalence of toxoplasma gondii among hunted ungulates in remote peruvian amazon. | toxoplasmosis is a zoonosis caused by the protozoan toxoplasma gondii, and it is found worldwide. to determine whether ungulates are reservoirs of t. gondii in an isolated and remote region of the northeastern peruvian amazon, antibodies to t. gondii were determined in 5 species of ungulates by the modified agglutination test (mat). these animals were hunted by subsistence hunters along the yavarí-mirín river, in the northeastern peruvian amazon. blood samples were collected by hunters on filter ... | 2014 | 24918073 |
| use of aloe vera-based extender for chilling and freezing collared peccary (pecari tajacu) semen. | as an alternative for the conservation of collared peccary semen, this research aims at evaluating the use of aloe vera (av) extract as a cryoprotectant for semen chilling and freezing. five ejaculates were divided in two aliquots that were diluted in tris plus egg yolk (ey; 20%) or av extract (20%) and chilled at 5 °c. in both treatments, an adequate semen conservation was achieved and values closer to 40% motile sperm with viability and osmotic response ranging from 20% to 40%, and normal morp ... | 2016 | 26830302 |
| [diversity, relative abundance and activity patterns of medium and large mammals in a tropical deciduous forest in the isthmus of tehuantepec, oaxaca, mexico]. | the use of camera traps and mammal track search are complementary methods to monitoring species of which is not well documented their natural history, as in the case of medium and large mammals. to ensure its conservation and good management, it is necessary to generate information about the structure of the community and their populations. the objective of the present study was to estimate the diversity, relative abundance and activity patterns of medium and large mammals in a tropical deciduou ... | 2014 | 25720178 |
| chromosomal evolution and phylogenetic analyses in tayassu pecari and pecari tajacu (tayassuidae): tales from constitutive heterochromatin. | the mammalian family tayassuidae (peccaries) is confined to the new world and comprises three recognized extant species, white-lipped (tayassu pecari), collared (pecari tajacu) and chacoan (catagonus wagneri) peccaries, which exhibit distinct morphological and chromosomal features. the phylogenetic relationships among the tayassuids are unclear and have instigated debate over the palaeontological, cytogenetic and molecular aspects. constitutive heterochromatin analysis can be used in understandi ... | 2007 | 17656845 |
| molecular evolution of the mitochondrial 12s rrna in ungulata (mammalia). | the complete 12s rrna gene has been sequenced in 4 ungulata (hoofed eutherians) and 1 marsupial and compared to 38 available mammalian sequences in order to investigate the molecular evolution of the mitochondrial small-subunit ribosomal rna molecule. ungulata were represented by one artiodactyl (the collared peccary, tayassu tajacu, suborder suiformes), two perissodactyls (the grevy's zebra, equus grevyi, suborder hippomorpha; the white rhinoceros, ceratotherium simum, suborder ceratomorpha), a ... | 1995 | 7490777 |
| water availability not fruitfall modulates the dry season distribution of frugivorous terrestrial vertebrates in a lowland amazon forest. | terrestrial vertebrate frugivores constitute one of the major guilds in tropical forests. previous studies show that the meso-scale distribution of this group is only weakly explained by variables such as altitude and tree basal area in lowland amazon forests. for the first time we test whether seasonally limiting resources (water and fallen fruit) affect the dry season distribution in 25 species of terrestrial vertebrates. to examine the effects of the spatial availability of fruit and water on ... | 2017 | 28301589 |
| [wildlife damage mitigation in agricultural crops in a bolivian montane forest]. | wildlife is often blamed for causing damage to human activities, including agricultural practices and the result may be a conflict between human interests and species conservation. a formal assessment of the magnitude of damage is necessary to adequately conduct management practices and an assessment of the efficiency of different management practices is necessary to enable managers to mitigate the conflict with rural people. this study was carried out to evaluate the effectiveness of agricultur ... | 2014 | 25720183 |
| wildlife contact rates at artificial feeding sites in texas. | given the popularity of feeding white-tailed deer (odocoileus virginianus) in texas and the increasing amount of corn that is distributed, more information is needed on the impacts of this activity on non-target wildlife. our objectives were to report visitation, intra- and interspecific contact, and contact rates of wildlife at artificial feeding sites in texas. our study was conducted at three sites in kleberg and nueces counties, texas. we trapped animals from february to april and august to ... | 2013 | 23609307 |
| sexual behavior of pecari tajacu (cetartiodactyla: tayassuidae) during periovulatory and early gestation periods. | the goal of this study was to describe the sexual behavior in female and male collared peccary. twenty females and twelve males were monitored in familiar and non-familiar units for two 60 days periods. during both phases, we recorded 2747 sexual interactions initiated by 20 different females toward males and 4461 sexual interactions initiated by 12 males toward females. the frequency of sexual interactions initiated per female significantly increased from proestrus to estrus, and they were sign ... | 2016 | 27553126 |
| hematological markers and biochemical profiles in terms of gender and age of captive collared peccaries (tayassu tajacu) in eastern amazon. | complete blood counts and blood biochemical analyses are laboratory tests that allow the monitoring of physiological condition, nutrition, and health in free-living or captive wild animals. when interpreting these tests, it is essential to compare the results with reference ranges that are suitable for the species. few studies have been conducted on the hematological and biochemical characteristics of tayassu tajacu, particularly for animals raised in the amazon biome. the objectives of this stu ... | 2015 | 26634461 |
| social structure of collared peccaries (pecari tajacu): does relatedness matter? | relatedness is considered an important factor in shaping social structure as the association among kin might facilitate cooperation via inclusive fitness benefits. we addressed here the influence of relatedness on the social structure of a neotropical ungulate, the collared peccary (pecari tajacu). as peccaries are highly social and cooperative, live in stable cohesive herds and show certain degree of female philopatry and high mean relatedness within herds, we hypothesized that kin would be spa ... | 2014 | 25173619 |
| alternaria fungal dermatitis in a free-ranging javelina (pecari tajacu). | we report a javelina from pinal county, arizona, usa, with severe fungal dermatitis and cellulitis. extreme emaciation and rostral disfiguration, including left-lateral displacement of the nasal planum, justified euthanasia. a pus-filled tract within the rostrum was observed. histopathology revealed granulomatous inflammation with hyphae morphologically consistent with alternaria sp. isolated by culture. | 2011 | 21719857 |
| coccidia of the collared peccary (tayassu tajacu) in southern texas with descriptions of three new species of eimeria (apicomplexa: eimeriidae). | in february 1993, fresh fecal samples were collected from 47 collared peccaries (tayassu tajacu) killed by hunters at the chaparral wildlife management area, southern texas, usa. five species of coccidia (eimeria chaparralensis n. sp. [9/47, 19%], eimeria dicotylensis n. sp. [21/47, 21%], eimeria pecari n. sp. [2/47, 4%], eimeria sp. [1/47, 2%], and klossia sp. [1/47, 2%]) were observed. measurements are in micron. sporulated oocysts of e. chaparralensis are rough-walled, elongate ovoidal, 43.3 ... | 1996 | 8691371 |
| serosurvey of anti- leptospira sp. and anti- toxoplasma gondii antibodies in capybaras and collared and white-lipped peccaries. | brazilian native species are reemerging as increasingly free-ranging populations. | 2017 | 28562764 |
| wildlife uses and hunting patterns in rural communities of the yucatan peninsula, mexico. | subsistence hunting is a traditional practice providing food and many other goods for households in the yucatan peninsula, southeast mexico. economic, demographic, and cultural change in this region drive wildlife habitat loss and local extinctions. improving our understanding about current practices of wildlife use may support better management strategies for conserving game species and their habitat. we aimed to evaluate if wildlife use remained relevant for the subsistence of rural residents ... | 2012 | 23031274 |
| genetic diversity of hepatozoon spp. in hydrochoerus hydrochaeris and pecari tajacu from eastern amazon. | this study aimed to identify and characterize genetically species of the genus hepatozoon detected in hydrochoerus hydrochaeris (capybaras) and pecari tajacu (collared peccaries) from two localities from the eastern amazon. blood samples from 196 free-living h. hydrochaeris from marajó island and 109 p. tajacu kept in captivity in belém, pará, were collected and analyzed for the presence of hepatozoon spp. partial sequences of the 18s rrna gene were obtained and analyzed in comparison to others ... | 2017 | 29174447 |
| dna extraction from skins of wild (hydrochoerus hydrochaeris and pecari tajacu) and domestic (sus scrofa domestica) species using a novel protocol. | sometimes, commercial products obtained from wild animals are sold as if they were from domestic animals and vice versa. at this point of the productive chain, legal control of possible wildlife products is difficult. common in the commerce of northern argentina, skins of two wild species, the carpincho and the collared peccary, look very similar to each other and to those of the domestic pig; it is extremely difficult to differentiate them after they have been tanned. because there was no an ad ... | 2012 | 22535403 |
| detection of leishmania (v) guyanensis in rhipicephalus (boophilus) microplus (acari: ixodidae) collected from pecari tajacu. | previous studies identified the presence of leishmania infantum in rhipicephalus sanguineus and indicated the possibility that it could transmit leishmaniasis to a variety of hosts. | 2017 | 29161493 |
| effects of atipamezole and medetomidine administration on seminal variables and functions of erection and ejaculation of the collared peccary (tayassu tajacu) after electroejaculation. | alpha adrenergic drugs are usually used in the treatment of erectile and ejaculatory dysfunction in humans. the influence of such drugs on the seminal characteristics of wild animals has not been verified; whereas their impact on the seminal characteristics and erectile and ejaculatory functions of collared peccaries (tayassu tajacu) has already been determined. this study aimed at investigating and comparing the effects of medetomidine and atipamezole on the seminal variables of collared peccar ... | 2014 | 25103781 |
| the retina of the collared peccary (pecari tajacu): structure and function. | to study retinal morphology and function in the collared peccary, an ungulate species distantly related to the domestic pig. | 2018 | 29336116 |
| protein requirements of collared peccary (pecari tajacu). | a nitrogen (n) balance digestion trial was conducted to determine the protein requirement of collared peccaries (pecari tajacu). in a 4 × 4 latin square design, four captive adult male peccaries were fed four isoenergy diets containing four different levels of n (11.7, 16.3, 22.8, and 26.7 g n/kg of dry matter-dm). after 15 days of adaptation, a total collection of feces and urine was carried out for five consecutive days. regression analyses between n intake and n in feces and urine allowed to ... | 2017 | 28623602 |
| microvascularization on collared peccary placenta: a microvascular cast study [corrected] in late pregnancy. | the microvascularization of the collared peccary (tayassu tajacu) placenta was studied by vascular casts and immunolocalization of α-smooth muscle actin and vimentin, to identify the three dimensional organization and vascular flow interrelation in the microvasculature between the maternal and fetal compartments of the placentae. the immunolocalization of vimentin in the vascular endothelium and in the smooth muscle cells of blood vessels showed indented capillaries along the uterine epithelium ... | 2012 | 22775252 |
| when roads appear jaguars decline: increased access to an amazonian wilderness area reduces potential for jaguar conservation. | roads are a main threat to biodiversity conservation in the amazon, in part, because roads increase access for hunters. we examine how increased landscape access by hunters may lead to cascading effects that influence the prey community and abundance of the jaguar (panthera onca), the top amazonian terrestrial predator. understanding such ecological effects originating from anthropogenic actions is essential for conservation and management of wildlife populations in areas undergoing infrastructu ... | 2018 | 29298311 |
| influence of cryopreservation solution on the in vitro culture of skin tissues derived from collared peccary (pecari tajacu linnaeus, 1758). | skin vitrification is a promising and alternative tool for the conservation of biodiversity, especially for wild mammals, such as collared peccaries. several factors can affect the success of this procedure, such as the cryoprotectant solution used. therefore, this study was carried out to compare the efficiency of various vitrification solutions for recovery of viable cells after in vitro culture of cryopreserved skin tissues derived from the collared peccary, aiming to study the application in ... | 2017 | 29215303 |
| first evidences of amazonian wildlife feeding on petroleum-contaminated soils: a new exposure route to petrogenic compounds? | videos recorded with infrared camera traps placed in petroleum contaminated areas of the peruvian amazon have shown that four wildlife species, the most important for indigenous peoples' diet (lowland tapir, paca, red-brocket deer and collared peccary), consume oil-contaminated soils and water. further research is needed to clarify whether amazonian wildlife's geophagy can be a route of exposure to petrogenic contamination for populations living in the vicinity of oil extraction areas and relyin ... | 2018 | 29103585 |
| progesterone and estradiol profiles in different reproductive stages of captive collared peccary (pecari tajacu) females assessed by fecal metabolites. | the study determined the fecal progesterone and estradiol profiles in different reproductive stages of captive collared peccary (pecari tajacu) females from eastern mexico. fifteen adult females were included. at the start of the study the females were either pregnant (early, mid, or late pregnancy), lactating, or non-lactating of unknown pregnancy status. feces from each female were collected once a week during nine consecutive months to determine concentrations of fecal progesterone and estrad ... | 2017 | 28336266 |
| conservation of somatic tissue derived from collared peccaries (pecari tajacu linnaeus, 1758) using direct or solid-surface vitrification techniques. | cryopreservation of somatic tissue can be applied in biodiversity conservation, especially for wild species as collared peccary. we aimed to evaluate the effect of vitrification techniques of ear tissue of collared peccary [direct vitrification in cryovials (dvc) or solid-surface vitrification (ssv)] on the layers of epidermis and dermis by conventional histology and cell ability during the in vitro culture. thus, both the vitrification methods were able to maintain normal patterns of the epider ... | 2017 | 28260212 |
| estimating the binding ability of collared peccary (pecari tajacu linnaeus, 1758) sperm using heterologous substrates. | in collared peccaries, the development of artificial insemination (ai) is scarce, requiring search for alternative methods for the evaluation of sperm fertilizing ability. thus, the aims of this study were to estimate the binding capability of collared peccaries sperm, using swine oocytes and the egg perivitelline membrane, and to evaluate the prognostic value of sperm parameters on the in vitro interactions among sperm and heterologous substrates. eleven ejaculates were collected by eletroejacu ... | 2017 | 28237343 |
| sperm characteristics following freezing in extenders supplemented with whole egg yolk and different concentrations of low-density lipoproteins in the collared peccary (pecari tajacu). | the aim of the current study was to compare sperm quality characteristics of the collared peccary (pecari tajacu) following freezing in extenders supplemented with whole egg yolk and different concentrations of low-density lipoproteins (ldl). semen from 11 adult males was obtained by electroejaculation and evaluated for sperm motility, vigor, morphology as well as membrane integrity analyzed by the hypo-osmotic swelling (hos) test and a fluorescent staining. moreover, the semen was diluted in a ... | 2015 | 26679163 |
| methane production by two non-ruminant foregut-fermenting herbivores: the collared peccary (pecari tajacu) and the pygmy hippopotamus (hexaprotodon liberiensis). | methane (ch4) production varies between herbivore species, but reasons for this variation remain to be elucidated. here, we report open-circuit chamber respiration measurements of ch4 production in four specimens each of two non-ruminant mammalian herbivores with a complex forestomach but largely differing in body size, the collared peccary (pecari tajacu, mean body mass 17kg) and the pygmy hippopotamus (hexaprotodon liberiensis, 229kg) fed lucerne-based diets. in addition, food intake, digestib ... | 2016 | 26454225 |
| implications of climatic seasonality on activity patterns and resource use by sympatric peccaries in northern pantanal. | we evaluated the effects of climate seasonality from a thermal and water availability perspective on the activity patterns and resource use of pecari tajacu and tayassu pecari during wet and dry seasons in the northeastern brazilian pantanal. we used camera traps and temperature sensors to record species activity patterns in relation to temperature, established five habitat categories based on flooding intensity and local vegetation characteristics, assessed the activity patterns of each species ... | 2016 | 26219606 |
| molecular phylogenetics of the white-lipped peccary (tayassu pecari) did not confirm morphological subspecies in northwestern south america. | we sequenced the mitochondrial dna (mtdna) control region of 59 peccaries (44 white-lipped peccaries, tayassu pecari, and 15 collared peccaries, pecari tajacu). we also genotyped 3 dna microsatellites from 78 white-lipped peccaries representing the 4 putative morphological subspecies (i.e., spiradens, aequatoris, pecari, and albirostris) present in northwestern south america (i.e., colombia, ecuador, peru, and bolivia). our results showed: 1) the estimated diversity of the mtdna control region i ... | 2015 | 26125732 |
| use of non-invasive methods for evaluating the testicular biometry in collared peccaries (pecari tajacu linnaeus, 1758). | the aim of this study was to compare the accuracy of two methods used to estimate testicular volume in the collared peccary. calliper and ultrasonographic measurements of testicular dimensions (length, width and height) of both testes were taken on five adult collared peccaries. the testicular volume was calculated by lambert's empiric formula: length (l) × width (w) × height (h) × 0.71, the formula of an ellipsoid l × w × h × 0.52, and hansen's formula: l × w(2) × 0.52. the calculated volumes ... | 2016 | 25627325 |
| estrous synchronization in captive collared peccaries (pecari tajacu) using a prostaglandin f2α analog. | we verify the efficiency of a protocol for estrus synchronization in captive female collared peccaries (pecaricari tajacu) using the prostaglandin analog d-cloprostenol. five adult female collared peccaries received an intramuscular administration of 60 µg d-cloprostenol, which procedure was repeated after a 9-day interval. for 10 days after second the d-cloprostenol administration, females were monitored for changes in external genitalia, ovarian ultrasonography, vaginal cytology and reproducti ... | 2014 | 25483796 |
| collared pecary (tayassu tajacu) as a new model of renal ischemic injury induced by clamping the renal artery. | the use of the collared peccary as an experimental model for ischemic nephropathy. | 2014 | 25252202 |
| vegf system expression by immunohistochemistry and real-time rt-pcr study on collared peccary placenta. | vascular endothelial growth factor (vegf) is known to induce endothelial cell proliferation, to promote cell migration, and to inhibit apoptosis, thus playing a central role in angiogenesis and in the regulation of vasculogenesis. the expression of the vegf-ligand receptor system was studied in the placenta and uterus of the collared peccary in nonpregnant females in the luteal phase and throughout pregnancy (>35, 75, 115, and 135 days). the material was examined by immunohistochemistry and by r ... | 2014 | 25087046 |
| influence of recovery method and centrifugation on epididymal sperm from collared peccaries (pecari tajacu linnaeus, 1758). | in order to establish protocols for gamete recovery from accidentally killed wild animals, or to take advantage of those slaughtered by captive breeders, we assess the influence of two methods on the recovery of epididymal sperm from collared peccaries, and verify the effect of centrifugation on such gametes. genitalia from nine animals were used. for each animal, one epididymis was processed by flotation and the other was processed by retrograde flushing, both using a buffered media based on tr ... | 2014 | 24832907 |
| protein profile of the seminal plasma of collared peccaries (pecari tajacu linnaeus, 1758). | this study was conducted to characterize the major proteins of the peccary seminal plasma, based on the semen samples collected from nine adult and reproductively sound animals. our approach included the use of two-dimensional electrophoresis followed by coomassie blue staining and analysis of polypeptide maps with pdquest software (bio-rad). proteins were identified by tandem mass spectrometry (lc-ms/ms). we detected 179 protein spots per gel and 98 spots were identified by mass spectrometry, c ... | 2014 | 24516176 |
| derivation of sperm from xenografted testis cells and tissues of the peccary (tayassu tajacu). | because the collared peccary (tayassu tajacu) has a peculiar leydig cell cytoarchitecture, this species represents a unique mammalian model for investigating testis function. taking advantage of the well-established and very useful testis xenograft technique, in the present study, testis tissue and testis cell suspensions from immature collared peccaries (n=4; 3 months old) were xenografted in scid mice (n=48) and evaluated at 2, 4, 6, and 8 months after grafting. complete spermatogenesis was ob ... | 2014 | 24324205 |
| histology of palate and soft palate tonsil of collared peccary (tayassu tajacu). | peccaries are characterized by a prominent skin gland, known as scent gland, which is located in the middle of the rump. these animals are able to survive in a great variety of habitats, from humid tropical forests to semi-arid areas. they are omnivorous animals, and their diet includes fibrous material, vegetables, fruits, small vertebrates and insects. collared peccary hard palate and soft palate tonsils were studied, macroscopic morphometric data were collected and tissue samples were paraffi ... | 2014 | 24033496 |
| cryopreservation of collared peccary (pecari tajacu) semen using different freezing curves, straw sizes, and thawing rates. | the objective of this study was to verify the effect of different freezing curves, straw sizes, and thawing rates on the cryopreservation of collared peccary semen. twelve ejaculates were obtained from captive adult males by electroejaculation, and evaluated for sperm motility, kinetic rating, viability, morphology, and functional membrane integrity. the ejaculates were diluted in a coconut water extender (acp-116c) with egg yolk and glycerol, packaged into 0.25 ml or 0.50 ml plastic straws and ... | 2013 | 23665462 |
| morphological characterization of the ovarian preantral follicle population of collared peccaries (tayassu tajacu linnaeus, 1758). | the aim of this research was to characterize the preantral ovarian follicular population in collared peccaries (tayassu tajacu) using light and electron microscopy. ovaries from six mature females were collected and further fixed for histological and ultrastructural analysis. a total of 33273.45 ± 5789.99 preantral follicles (pfs) were estimated for the population in each ovary. most preantral follicles were primordial (91.56%), followed by primary (6.29%) and secondary (2.15%) ones. most pfs we ... | 2013 | 23278244 |
| comparison of different glycerol and egg yolk concentrations added to tris-based extender for the collared peccaries (tayassu tajacu) semen freezing. | this study aimed to evaluate various concentrations of egg yolk (5, 10, or 20%) in combination with different concentrations of glycerol (3% or 6%) added to a tris-based extender on the post-thaw characteristics of sperm obtained from tayassu tajacu. for this purpose, semen from 10 sexually male mature collared peccaries was collected by electroejaculation and evaluated for sperm motility, vigour, viability, morphology and functional membrane integrity. the ejaculates were initially extended in ... | 2013 | 23057784 |
| individual variation related to testicular biometry and semen characteristics in collared peccaries (tayassu tajacu linnaeus, 1758). | the aim of this research was to study the individual variation with regard to the morphometry of the testes evaluated by ultrasonography and semen characteristics and to verify the existence of relationship between these variables in collared peccaries. in addition, the testes of the animals were evaluated by histology in order to determine the proportion occupied by the seminiferous tubules. a total of 52 ejaculates were obtained from ten adult specimens that had been restrained by anesthesia. ... | 2012 | 22964034 |