نتایج جستجو برای: cervus elaphus
تعداد نتایج: 1658 فیلتر نتایج به سال:
The preorbital gland plays not only an olfactory role in cervids but also a visual one. Opening this gland is an easy way for the calf to communicate with the mother, indicating hunger/satiety, stress, pain, fear, or excitement. This information can be also useful for farm operators to assess how fast the calves habituate to handling routines and to detect those calves that do not habituate and...
Natural events over time, and human interventions, influence the genetic structure of species. The red deer (Cervus elaphus) is widely distributed in Europe, with a large-scale largely determined by Pleistocene climatic oscillations. Iberian Peninsula acted as one main glacial refuges for many species; particular lineage remains on peninsula subjected to special conservation policies. mountain ...
European red deer (Cervus elaphus elaphus) are susceptible to the agent of bovine spongiform encephalopathy, one of the transmissible spongiform encephalopathies, when challenged intracerebrally but their susceptibility to alimentary challenge, the presumed natural route of transmission, is unknown. To determine this, eighteen deer were challenged via stomach tube with a large dose of the bovin...
Abstract Infections with Mycobacterium microti, a member of the M. tuberculosis complex, have been increasingly reported in humans and domestic free-ranging wild animals. At postmortem examination, infected animals may display histopathologic lesions indistinguishable from those caused by bovis or caprae, potentially leading to misidentification bovine tuberculosis. We report 3 cases microti in...
A naturally occurring outbreak of Mycobacterium bovis infection in captive wild elk (wapiti) in Montana was confirmed by mycobacteriologic examination. Twenty-eight of 143 elk responded to M. bovis purified protein derivative (PPD) tuberculin injected intradermally in the cervical region (SCT). The results of comparative cervical tuberculin skin tests conducted within 9 days of SCT revealed gre...
Red deer (R) are the predominant species of farmed deer in New Zealand. There is considerable interest in hybridisation with other deer species to improve growth rate and possibly alter the breeding season of the progeny. Analysis of gestation lengths indicates that the progeny of Canadian wapiti (CW) or CW x R deer have gestation lengths intermediate between the parental strains but the progen...
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