| life cycle and ultrastructure of eimeria stigmosa, the intranuclear coccidian of the goose (anser anser domesticus). | the oocyst morphology and endogenous development of eimeria stigmosa klimes, 1963 in a domestic goose (anser anser domesticus l.) was studied using light and electron microscopy. the oocyst wall consisted of two layers. the outer layer formed densely accumulated protrusions, whilst the inner layer was smooth and formed a collar structure around the micropyle. meronts were observed in the posterior part of the jejunum, along the whole length of the ileum and in meckel's diverticulum within 1-4 da ... | 1992 | 1644357 |
| description of the goose coccidium eimeria stigmosa (klimes, 1963), with evidence of intranuclear development. | oocysts of eimeria stigmosa isolated from a wild juvenile lesser snow goose (anser caerulescens caerulescens) were used in experimental infections of laboratory-reared geese. the structure of oocysts is described; a peculiar bumpy surface and a calyx-like thickening around the micropyle are illustrated by scanning electron microscopy. experimentally infected geese had reduced feed intake and passed blood in their feces. six days post-inoculation (p.i.) oocysts were passed for about 24 hr. oocyst ... | 1986 | 3783353 |
| [kidney coccidium, eimeria truncata, from the domestic goose (anser anser domesticus]. | | 1980 | 7470016 |
| intranuclear development of asexual and sexual generations of eimeria hermani farr, 1953, the coccidian parasite of geese. | both merogonic and gamogonic stages of eimeria hermani occurred within the nucleus of epithelial cells of the intestine of experimentally infected goslings (anser anser domesticus l.). they were located within a parasitophorous vacuole. several developing meronts were often observed in one host nucleus and each of them had its own parasitophorous vacuole. we suppose that two generations of meronts were formed by ectomerogony from 2 to 4 days post infection (dpi). during the gamogony (4-6 dpi), w ... | 1993 | 8353328 |
| plasma concentrations of 13,14-dihydro-15-keto pgf2alpha and progesterone during the oviposition cycle of the domestic goose (anser anser domesticus). | plasma 13,14-dihydro-15-keto prostaglandin f2alpha (pgfm) and progesterone levels were determined in actively ovulating, 1- to 2-yr-old female geese (anser anser domesticus) at hourly intervals during the oviposition cycle, using the enzyme immunoassay (eia) technique. the plasma pgfm concentration showed a peak at the time of oviposition and decreased to a basal level after oviposition. progesterone levels began to surge approximately 12 to 13 h before ovulation and reached a peak 2 to 3 h befo ... | 2001 | 11233013 |
| fatal encephalitis and myocarditis in young domestic geese (anser anser domesticus) caused by west nile virus. | during 1999 and 2000, a disease outbreak of west nile (wn) virus occurred in humans, horses, and wild and zoological birds in the northeastern usa. in our experiments, wn virus infection of young domestic geese (anser anser domesticus) caused depression, weight loss, torticollis, opisthotonus, and death with accompanying encephalitis and myocarditis. based on this experimental study and a field outbreak in israel, wn virus is a disease threat to young goslings and viremia levels are potentially ... | 2001 | 11585545 |
| the arterial supply of meckel's diverticulum in geese (anser anser domesticus). | this study was carried out to describe the arterial supply of meckel's diverticulum (md) in geese, using 36 adult healthy geese of both sexes, 50 to 52 weeks of age. the arterial supply of md was classified into three types, in the first type, md was supplied by a very distinct branch from the cranial mesenteric artery in 21 geese. in the second type, it was supplied by one terminal branch from the cranial mesenteric artery in 9 geese. in the third type, it was supplied both by one branch from t ... | 2001 | 11789616 |
| pathogenicity of a hong kong-origin h5n1 highly pathogenic avian influenza virus for emus, geese, ducks, and pigeons. | the h5n1 type a influenza viruses that emerged in hong kong in 1997 are a unique lineage of type a influenza viruses with the capacity to transmit directly from chickens to humans and produce significant disease and mortality in both of these hosts. the objective of this study was to ascertain the susceptibility of emus (dramaius novaehollandiae), domestic geese (anser anser domesticus), domestic ducks (anas platyrhynchos), and pigeons (columba livia) to intranasal (i.n.) inoculation with the a/ ... | 2002 | 11924603 |
| morphological studies on meckel's diverticulum in geese (anser anser domesticus). | this study was carried out to reveal the morphological features of meckel's diverticulum (md) in geese. for this purpose, a total of 36 adult healthy geese of both sexes, 50-52 weeks of age, were used. the mean weight of md in male was found to be significantly larger than that of female. it was located a little distal to the midpoint of the small intestine in both sexes. it had a lot of lymphoid tissues, the simple columnar epithelium and a small number of crypts, and was a lack of villi, and i ... | 2002 | 12484422 |
| the prevalence of helminths in the alimentary tract of geese (anser anser domesticus) in kars district, turkey. | | 2003 | 14509453 |
| an outbreak of west nile virus-associated disease in domestic geese (anser anser domesticus) upon initial introduction to a geographic region, with evidence of bird to bird transmission. | west nile virus activity in manitoba was documented for the first time by the collection of an infected crow found on july 8, 2002, in winnipeg. west nile virus was identified as the cause of death for a large number of domestic geese at a single farm in southern manitoba in august. of the 5 differently aged cohorts on the affected farm, which included 2 breeding flocks and 3 growing flocks, the 6-week-old cohort was most severely affected with 692 of 2731 goslings dying within a 10-day period. ... | 2004 | 15025147 |
| [complex environmental and virological monitoring in the primorye territory in 2003-2006]. | the paper presents the results of monitoring of viruses of western nile (wn), japanese encephalitis (je), tick-borne encephalitis (tbe), geta, influenza a, as well as avian paramicroviruses type i (virus of newcastle disease (nd)) and type 6 (apmv-6) in the primorye territory in 2003-2006. totally throughout the period, specific antibodies to the viruses were detected by neutralization test in wild birds (7.3%, wn; 8.0%, geta; 0.7% batai; 2.8%, alpine hare (lepus timidus); by hemagglutination-in ... | 2007 | 18041224 |
| comparison of the association of age with the infection of salmonella and salmonella enterica serovar typhimurium in pekin ducks and roman geese. | nontyphoid salmonella have a broad host range in poultry and mammals, and serovar typhimurium is a threat to public health. in this study, normal and sick ducks and geese were collected from 12 farms in taiwan to investigate the age-associated infection of salmonella and salmonella typhimurium in roman geese (anser anser domesticus) and pekin ducks (anas platyrhynchos domesticus). in normal birds, the prevalence of salmonella differed between species, and with age [e.g., 1-wk group, 37.5% (30/80 ... | 2008 | 18648047 |
| an abdominal teratoma in a domestic goose (anseriformes, anser anser domesticus). | this article reports a spontaneous teratoma in a domestic goose (anseriformes, anser anser domesticus). the mass was found in the caudal abdominal cavity attached by a thin pedicle and consisted of an epithelial-lined cyst. it contained ensheathed but fully formed feathers arising from feather follicles complete with erector muscles and nerves. the capsule was composed mainly of adipocytes with a thin squamous serosa. | 1993 | 18671009 |
| [studies on coccidia of geese in the south-west region of france. proposed key for the classification differentiation of different species based on the morphology of the sporulated oocyst]. | eight coccidian species found in the domestic goose (anser anser domesticus) in the south-west of france are described. an identification key based on the morphological features of sporulated oocysts is proposed. of the eight species, two had not, previously, been reported in domestic geese; one of them might be a new species. | 1988 | 18766700 |
| novel bile acids from bear bile powder and bile of geese. | two new bile acids, tauroselocholic acid (1) and tauroansocholic acid (2), a new natural bile acid, cygnocholic acid (3) were respectively isolated from bear bile powder selenaretos thibetanus cuvier and bile of geese anser anser domesticus, together with seven known compounds. by spectrum analysis of ms, 1d and 2d nmr, the structures of the new compounds were elucidated as 3alpha,7alpha,9alpha-trihydroxy-5beta-cholan-24-oic acid n-[2-sulfoethyl] amide (1), 3alpha,5,7alpha-trihydroxy-5beta-chola ... | 2009 | 19420790 |
| role of gonadal and adrenal steroids and thyroid hormones in the regulation of molting in domestic goose. | plasma levels of testosterone (t), 17-+¦-estradiol (e2), progesterone (p4), dehydroepiandrosterone (dhea), corticosterone (b), thyroxine (t4) and triiodothyronine (t3) were monitored during postnuptial and the prenuptial molt in domestic goose (anser anser domesticus) in both sexes. 1. at the beginning of postnuptial molt (when the old, worn dawny-, and cover feathers' loss starts) in ganders, the levels of t, e2, p4 decrease while dhea and b significantly increase. the elevated levels of t4 and ... | 2011 | 21388915 |
| applicability of anatid and galliform microsatellite markers to the genetic diversity studies of domestic geese (anser anser domesticus) through the genotyping of the endangered zatorska breed. | | 2011 | 21410974 |
| necrotic dermatitis in waterfowl associated with consumption of perennial rye grass (lolium perenne). | mute swans (cygnus olor), whooper swans (cygnus cygnus), and mixed-breed domestic geese (anser anser domesticus) were presented for necrotic lesions on the feet, eyelids, and beak. individuals from the same collection of birds had developed identical lesions during march-september of each of the previous 3 years. vesicular and necrotic dermatitis involved only nonfeathered and nonpigmented areas of the integument. no abnormal clinical signs were seen on either carnivorous species or birds with p ... | 2011 | 21657187 |
| Fatty Acyl-CoA Reductases of Birds. | ABSTRACT: BACKGROUND: Birds clean and lubricate their feathers with waxes that are produced in the uropygial gland, a holocrine gland located on their back above the tail. The type and the composition of the secreted wax esters are dependent on the bird species, for instance the wax ester secretion of goose contains branched-chain fatty acids and unbranched fatty alcohols whereas that of barn owl contains fatty acids and alcohols both of which are branched. Alcohol-forming fatty acyl-CoA reduct ... | 2011 | 22151413 |
| evaluation of the immune response in shitou geese (anser anser domesticus) following immunization with gpv-vp1 dna-based and live attenuated vaccines. | goose parvovirus (gpv) is a highly contagious and deadly disease for goslings and muscovy ducklings. | 2014 | 25312356 |
| seroprevalence of paramyxoviruses in synanthropic and semi-free-range birds. | avian paramyxoviruses (apmvs) are classified into nine different serotypes (apmv 1-9). virulent strains of apmv-1 are already well characterized as the etiologic agent of newcastle disease (nd), an important disease in poultry that is potentially capable of infecting all orders of avian species. however, very little is known about the other eight serotypes, the majority of which can cause disease in domestic birds. the role of synanthropic and semi-free-range birds as reservoirs of avian paramyx ... | 2014 | 25055638 |
| carcass and meat quality traits in an embden×toulouse goose cross raised in organic dehesa. | this study assessed the influence of genetic type (embden-anser anser, ee; toulouse-anser anser, tt and f1 cross, et) for meat characteristics (carcass, meat quality and fatty acid (fa) profiles), of domestic geese "anser anser domesticus" raised in dehesa as an alternative, organic feeding system. carcass and breast muscle weight (p<0.01) were greater for the et group at the same live weight. none of the groups showed differences in the production of fatty liver with this type of feeding. highe ... | 2016 | 26954156 |
| reply to commentary by d. elleder and j. hejnar on the article "avian sarcoma and leukosis virus gag gene in the anser anser domesticus genome" published in genetics and molecular research 14 (4): 14379-14386 to the letter published in genet. mol. res. 15 (1): gmr.15014956. | | 2016 | 26909909 |
| avian sarcoma and leukosis virus gag gene--genet. mol. res. 14 (4): 14379-14386 "avian sarcoma and leukosis virus gag gene in the anser anser domesticus genome". | | 2016 | 26909908 |
| avian sarcoma and leukosis virus gag gene in the anser anser domesticus genome. | endogenous retroviruses are regarded as ideal genetic markers for evolutionary analyses. birds were some of the initial vertebrates found to contain endogenous retroviruses. however, few studies have investigated the presence and distribution of endogenous retroviruses in goose. in this study, we detected the avian sarcoma and leukosis virus gag gene in the genomic dna of 8 chinese native breeds using polymerase chain reaction method. the results indicated that a 1.2-kb avian sarcoma and leukosi ... | 2015 | 26600497 |
| development of adrenergic and cholinergic receptor cardiovascular regulatory capacity in the canada goose (branta canadensis) and domestic goose (anser anser domesticus). | adrenergic control of cardiovascular function is a common component of regulation in embryonic birds studied to date. our goal was to investigate adrenergic and cholinergic cardiovascular regulation in two goose species, the canada goose (branta canadensis) and the related domestic goose (anser anser domesticus) to determine if these species possess similar regulation during embryonic development. we determined mean arterial pressure (pm) and heart rate (fh) responses to serial blockade of choli ... | 2014 | 24140488 |
| new method for estimating the volume and volume fractions of the nasal structures in the goose (anser anser domesticus) using computed tomography images. | 1. the conchae within the nasal cavity of poultry are important for water and energy conservation, but have not been experimentally evaluated. the aim of the present study was to determine the accuracy of volume and volume fraction estimates of the conchae, nasal septum and nasal cavity. 2. the nasal cavities of 7 adult goose heads were scanned using computed tomography (ct), with images sampled randomly at a 1/5 sampling fraction. physical sections were obtained from the same samples, using an ... | 2013 | 23906217 |
| mechanism of phytoestrogen action in leydig cells of ganders (anser anser domesticus): interaction with estrogen receptors and steroidogenic enzymes. | phytoestrogens (pe) are plant-derived compounds that have an estrogen-like activity and they can influence male and female reproduction. the possible mechanisms of pe action may be including: the binding to estrogen receptors (er) and the interaction with the key steroidogenic enzymes. the aim of this study was to investigate if pe has effect on steroidogenesis of gander testicular cells by above-described pathways. the leydig cells were isolated from testes of white koĊuda ganders at the peak o ... | 2012 | 22540659 |