Publications

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seasonal variation of lh and testosterone in the smallest deer, the pudu (pudu puda molina) and its relationship to the antler cycle.1. in order to obtain a seasonal profile of lh, three adult male pudu (pudu puda, molina) were sampled monthly from the saphenous vein for a period of one year. 2. a significant circannual variation of plasma lh levels was detected with an average peak value (1.77 ng/ml) recorded in february and nadir concentrations (0.19 ng/ml) observed in november. 3. the peak level of testosterone (1.54 ng/ml) was detected in march, the time of the rut.19937906627
rank dependent seasonal levels of igf-1, cortisol and reproductive hormones in male pudu (pudu puda).we tested the following hypothesis: when two pudu males share a single pen throughout the year, the dominant animal will have a higher level of igf-1 than its subordinate pen mate, particularly during the period of increased social friction (e.g. rut and establishment of territories). to test this hypothesis, we used data from six adult males maintained at the university of concepión, chile (latitude 36.6 degrees s), and analysed them from the males' dominance point of view. two males plus eight ...19989773515
non-random distribution of the pericentromeric heterochromatin in meiotic prophase nuclei of mammalian spermatocytes.the central or peripheral distribution of condensed chromatin (cc) was studied in pachytene spermatocyte nuclei in mus domesticus, 2n = 40; pudu puda, 2n = 70; ctenomys opimus, 2n = 26 and octodon degus, 2n = 58. species were chosen according to the morphological characteristics of their chromosomal complements and in particular, the terminal or medial chromosomal localisation of the pericentromeric constitutive heterochromatin. counts were made by defining the areas corresponding to peripheral ...199910897793
clinical presentation and antiviral therapy for poxvirus infection in pudu (pudu puda).a severe poxvirus infection occurred in three pudu (pudu puda), resulting in two fatalities. cutaneous ulcers with mucopurulent exudate were present around the eyes and nose, at the lip margins, coronary bands, and teats. mucosal ulcers were present in the oral cavity, esophagus, and forestomachs. in the two fatalities, a secondary disseminated fungal infection also occurred. affected animals were leukopenic, hypocalcemic, and hyperphosphatemic and had elevated serum alkaline phosphatase, alanin ...200011237153
concentrations of insulin-like growth factor-i in adult male white-tailed deer (odocoileus virginianus): associations with serum testosterone, morphometrics and age during and after the breeding season.our understanding of insulin-like growth factor-i (igf-i) in cervids has been limited mostly to its effects on antler development in red deer (cervus elaphus), roe deer (capreolus capreolus), fallow deer (dama dama), and pudu (pudu puda). although igf-i has been found to play a critical role in reproductive function of other mammals, its role in reproduction of deer is unknown. the objectives of the present study were to determine if serum levels of igf-i change during the breeding season, asses ...200111440874
effect of antiandrogen cyproterone acetate on the development of the antler cycle in southern pudu (pudu puda).the antler cycle of pudu is similar to other cervids, but unlike most boreal deer, male southern pudu (pudu puda) exhibits two seasonal peaks of lh and testosterone. in that respect, pudu is similar to roe deer. whereas the antler cycle in some deer species, such as roe deer or white-tailed deer, is very sensitive to variation of testosterone, in other cervids, such as fallow deer or reindeer, a blockade of androgens with cyproterone acetate (ca) has little or no effect on the timing of the antl ...200211857473
identification of a pestivirus isolated from a free-ranging pudu (pudu puda) in chile. 200516157573
transposition of the biceps tendon to reduce lateral scapulohumeral luxation in three species of nondomestic ruminant.open reduction of lateral luxation of the scapulohumeral joint was performed in a mhorr gazelle (gazella dama mhorr), a southern pudu (pudu puda), and an alpine ibex (capra ibex ibex) by transposition of the biceps brachii tendon lateral to the greater tubercle of the humerus. the ibex had a very large greater tubercle that required a second osteotomy to allow successful lateral transfer of the tendon. although all three animals were non-weight bearing in the first 2-3 wk after surgery, ambulati ...200517323571
the phylogenetic position of ixodes stilesi neumann, 1911 (acari: ixodidae): morphological and preliminary molecular evidences from 16s rdna sequences.the female of ixodes stilesi neumann, 1911 (acari ixodidae) is redescribed and the male and nymph are described from specimens collected from pudu puda (molina) (artiodactyla: cervidae) in chile. both sexes of i. stilesi have characteristics of the subgenera ixodes latreille, 1795 and ixodiopsis filippova, 1957. the females of i. stilesi are peculiar in having the combination of the sinuous scutum outline, rounded porose areas with distinct borders separated by the width of one area, slender and ...200616612654
[phylogenetic relationships among neotropical deer genera (artiodactyla: cervidae) by means of dnamt sequences and microsatellite markers].the current work shows two molecular phylogenetic analyses on neotropical deers. in the first analysis, the mitochondrial control region (d-loop) was sequenced in six odocoileinae species from latin america, using the sequences of two muntiacinae as outgroups. the results obtained were as follows: a sequence of mazama americana showed a striking relationship with several sequences of odocoileus in contrast to that expected, since this m. americana haplotype, from a mexican origin, was not associ ...200719069784
novel papillomavirus isolates from erinaceus europaeus (erinaceidae, insectivora) and the cervidae (artiodactyla), cervus timorensis and pudu puda, and phylogenetic analysis of partial sequence data.the diversity of papillomaviruses (pves) infecting stratified squamous epithelia of warm-blooded animals, such as birds and mammals, is only fragmentarily documented. the pv types are sequenced from 9 of 18 placental taxa at the order level to date. current phylogenetic analyses of pv sequences frequently do not consider evolutionary polarity and statistical evaluation of internal nodes, that are required for robust evolutionary conclusions. in this study, we isolated and characterized three put ...200818210195
arcanobacterium pyogenes septicemia in a southern pudu (pudu puda) following uterine prolapse.a 14-year-old female pudu (pudu puda) developed a uterine prolapse after unassisted parturition. the length of time between the prolapse and replacement of the organ was not known but was less than 24 hr. when the prolapse was first noticed, uterine tissue appeared undamaged and was immediately cleaned with antiseptic solution, handled carefully during replacement, and prophylactic antibiotic and anti-inflammatory drugs were given. the pudu appeared clinically normal until 4 days postpartum, whe ...201020722272
anatomical study of the gastrointestinal tract of a pudu (pudu puda) using contrast-enhanced abdominal computed tomography.the pudu (pudu puda), which is the smallest deer in the world and inhabits central and southern chile and argentina, is a ruminant and a browsing herbivore. the aim of this study was to provide a reference for interpretation of the normal anatomy of the pudu's gastrointestinal tract as imaged by abdominal computed tomography (ct). for the study, one adult female pudu was used. after a 24-h fast, the pudu was anaesthetized and positioned in sternal recumbency at the ct table. image acquisition be ...201221923893
providing habitat for native mammals through understory enhancement in forestry plantations.the convention on biological diversity (cbd) expects forestry plantations to contribute to biodiversity conservation. a well-developed understory in forestry plantations might serve as a surrogate habitat for native species and mitigate the negative effect of plantations on species richness. we experimentally tested this hypothesis by removing the understory in monterey pine (pinus radiata) plantations in central chile and assessing changes in species richness and abundance of medium-sized mamma ...201324033701
cross-amplification of nonspecific microsatellites markers: a useful tool to study endangered/vulnerable species of southern andes deer.thirty-nine microsatellite loci that are highly conserved in red deer, sika deer, reindeer, soay sheep, and other artiodactyls were tested in two vulnerable and endangered neotropical deer (pudu: pudu puda and huemul: hippocamelus bisulcus) with the aim of producing a standardized set of markers that can be used successfully in noninvasive samples from these species. we also compared these nonspecific loci against eight polymorphic loci that were recently developed for huemul to determine whethe ...201424841651
first report of malignant catarrhal fever in a captive pudu (pudu puda).a male, six-year-old pudu (pudu puda) from an italian zoo was submitted for postmortem examination after sudden death. necroscopy revealed non-suppurative bronchopneumonia and degeneration of the liver and haemorrhagic lesions of the thymus, pericardium and spleen. microscopically, multifocal perivascular mononuclear cell infiltrates were observed in the kidneys, lungs, spleen, and the portal triads of the liver. histological examination of the brain showed meningitis, vasculitis and perivascula ...201525769443
seroprevalence of nine leptospira interrogans serovars in wild carnivores, ungulates, and primates from a zoo population in a metropolitan region of chile.serum samples from 130 individuals representing 42 species of carnivores, ungulates, and primates from a population of captive mammals in metropolitan region in chile were tested for antibodies against nine serovars of leptospira interrogans using the microscopic agglutination test. ten percent of the animals were seropositive to one or more serovars. seroprevalence was significantly higher in ungulates (20.4%) compared to carnivores (3.8%) and primates (3.4%). there were no significant differen ...201526667533
genetic diversity of bovine papillomavirus types, including two putative new types, in teat warts from dairy cattle herds.teat papillomatosis affects dairy cows worldwide. milking can become difficult due to teat warts, and maintaining affected cows in the herds may diminish economic profit in the dairy industry. currently, 13 bovine papillomavirus (bpv) types have been fully characterized, and numerous putative bpv types have been identified through partial l1 gene pcr. in order to identify the viral types present in warts on the udders of dairy cows, 40 teat lesions from 24 cows from 13 cattle farms in three stat ...201626997614
correspondence between the habitat of the threatened pudú (cervidae) and the national protected-area system of chile.currently, many species are facing serious conservation problems due to habitat loss. the impact of the potential loss of biodiversity associated with habitat loss is difficult to measure. this is particularly the case with inconspicuous species such as the threatened pudú (pudu puda), an endemic cervidae of temperate forests of chile and argentina. to evaluate the effectiveness of the chilean protected-area system in protecting the habitat of the pudú, we measured the congruence between this sp ...201626738753
infection with borrelia chilensis in ixodes stilesi ticks collected from pudu puda deer.lyme borreliosis is a vector-borne zoonosis caused by borrelia burgdorferi sensu lato species complex spirochetes, which are maintained in transmission cycles among vertebrates and ixodes ticks. recently, a new genospecies within this complex, borrelia chilensis, was described in ixodes stilesi collected from the environment and from rodents in chile. this tick also infests the native southern pudu deer (pudu puda). the objectives of this study were to investigate the prevalence, intensity of in ...201728549720
a gene-tree test of the traditional taxonomy of american deer: the importance of voucher specimens, geographic data, and dense sampling.the taxonomy of american deer has been established almost entirely on the basis of morphological data and without the use of explicit phylogenetic methods; hence, phylogenetic analyses including data for all of the currently recognized species, even if based on a single gene, might improve current understanding of their taxonomy. we tested the monophyly of the morphology-defined genera and species of new world deer (odocoileini) with phylogenetic analyses of mitochondrial dna sequences. this is ...201729134018
ancient parasites from endemic deer from "cueva parque diana" archeological site, patagonia, argentina.the narrow andean-patagonian temperate rainforest strip in the west of southern south america is inhabited by two endemic species of cervids, the southern pudu (pudu puda) and the huemul (hippocamelus bisulcus), both cataloged as near threatened and threatened species, respectively. one of the possible causes of their declined number is the susceptibility to livestock diseases. significant zooarchaeological records of both deer have been found throughout the holocene from patagonia. the present ...201728342040
detection of persistent pestivirus infection in pudú (pudu puda) in a captive population of artiodactyls in chile.bovine viral diarrhea virus (bvdv) is the viral agent causing the most important economic losses in livestock throughout the world. infection of fetuses before their immunological maturity causes the birth of animals persistently infected with bvdv (pi), which are the main source of infection and maintenance of this pathogen in a herd. there is evidence of susceptibility to infection with bvdv in more than 50 species of the order artiodactyla, and the ability to establish persistent infection in ...201829391001
genome sequences of two novel papillomaviruses isolated from healthy skin of pudu puda and cervus elaphus deer.we report the complete genome sequences of pudu puda papillomavirus1 (ppudpv1) and cervus elaphus papillomavirus2 (celapv2), isolated from healthy skin hair follicles of a southern pudu and a red deer, respectively. ppudpv1 is basal to the dyokappapvs, whereas celapv2 is basal to the xipvs (beta-xipv crown group).201829724829
sarcocystis spp. infection in south american deer huemul (hippocamelus bisulcus) and pudu (pudu puda) from patagonian national parks, argentina.sarcocystis spp. are intracellular protozoan parasites with heteroxenous life cycles. this study described sarcocystis spp. infection in adult south american native deer huemul (hippocamelus bisulcus) and pudu (pudu puda). heart, diaphragm, tongue, and skeletal muscle samples were collected from 5 huemuls and 2 pudus, found dead in national parks. direct microscopic examination, transmission electron microscopy, pcr, and sequencing were performed. sarcocystis spp. microscopic thin-walled cysts w ...202032951141
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