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meiotic maturation of vitrified immature chousingha (tetracerus quadricornis) oocytes recovered postmortem.the ability to recover and cryopreserve oocytes from postmortem ovaries of endangered or wildlife species holds tremendous potential for conservation using assisted reproductive technologies. the objective of this study was to assess the in vitro meiotic maturation of chousingha (four-horned antelope) oocytes following vitrification using open pulled straw (ops) method. the average number of oocytes recovered per ovary was 65.6. the proportion of oocytes that matured was significantly lower in v ...201121168399
isotopic evidence for dietary niche overlap between barking deer and four-horned antelope in nepal.morphologically similar sympatric species may have a high degree of niche overlap. barking deer muntiacus vaginalis and four-horned antelope tetracerus quadricornis are solitary ungulates of the indian sub-continent. limited information is available regarding their trophic ecology, particularly of the endemic four-horned antelope. we present stable carbon (δ(13)c), nitrogen (δ(15)n), and sulphur (δ(34)s) isotopic values, and nitrogen content (%n) of faeces from barking deer and four-horned antel ...201526000253
predicting potential distribution of poorly known species with small database: the case of four-horned antelope tetracerus quadricornis on the indian subcontinent.information gaps on the distribution of data deficient and rare species such as four-horned antelope (fha) in nepal may impair their conservation. we aimed to empirically predict the distribution of fha in nepal with the help of data from the indian subcontinent. additionally, we wanted to identify core areas and gaps within the reported range limits and to assess the degree of isolation of known nepalese populations from the main distribution areas in india. the tropical part of the indian subc ...201627069584
dry season diet composition of four-horned antelope tetracerus quadricornis in tropical dry deciduous forests, nepal.it is essential to assess the feeding strategies of threatened species during resource-scarce seasons to understand their dietary niche breadth and inform appropriate habitat management measures. in this study, we examined the diet composition of four-horned antelope (fha) tetracerus and quadricornis, one of the least studied ungulate species, in banke national park, nepal. a total of 53 fresh pellet groups were collected between december 2015 and january 2016 and analyzed using micro-histologic ...201829967747
fatal peste des petits ruminants disease in chowsingha.this communication reports fatal peste des petits ruminants (ppr) disease in chowsingha (tetracerus quadricornis), a member of the subfamily bovinae and family bovidae captured in a zoological park. the animals showed clinical signs of acute respiratory disease with frothy nasal discharge (1-2 days) and mortality of twenty animals (80%) within 48 hr. necropsy of dead chowsingha showed haemorrhagic patches in trachea and severe congestion of lungs and ocular mucosa. there was no characteristic le ...201728805043
spatial niche partitioning in sub-tropical solitary ungulates: four-horned antelope and barking deer in nepal.differential resource use allows a diversity of species to co-exist in a particular area by specializing in individual ecological niches. four-horned antelope tetracerus quadricornis is endemic to the indian subcontinent and has a restricted distribution in nepal and india; however, the barking deer muntiacus vaginalis is relatively common throughout its wide distribution range. we wanted a better understanding of their habitats and how these two similarly sized solitary ungulates manage to coex ...201525714092
a paradox revealed: karyotype evolution in the four-horned antelope occurs by tandem fusion (mammalia, bovidae, tetracerus quadricornis).the four-horned antelope, tetracerus quadricornis, is a karyotypic novelty in bovidae since chromosomal evolution in this species is driven by tandem fusions in contradiction to the overwhelming influence of robertsonian fusions in other species within the family. using a combination of differential staining and molecular cytogenetic techniques, we provide the first description of the species' karyotype, draw phylogenetic inferences from the cytogenetic data and discuss possible mechanisms under ...201020204496
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