نتایج جستجو برای: deer
تعداد نتایج: 8563 فیلتر نتایج به سال:
Mitogen- and antigen-induced interferon-gamma (IFN-gamma) responses of peripheral blood leucocytes from cervids were evaluated by a commercial whole-blood assay. The assay was applied to Mycobacterium bovis-infected white-tailed deer and reindeer, M bovis BCG-vaccinated white-tailed deer and elk, and unvaccinated, uninfected white-tailed deer, fallow deer, elk and reindeer. The responses of the...
The effects of landscape changes caused by intensive logging on the availability of wild game are important when the harvest of wild game is a critical cultural practice, food source, and recreational activity. We assessed the influence of extensive industrial logging on the availability of wild game by drawing on local knowledge and ecological science to evaluate the relationship between fores...
Harvest data often are used to model deer (Odocoileus sp.) population growth and evaluate harvest strategies. Understanding factors that may influence harvest-reporting rates among methods of data collection is important in assessing the reliability of harvest data. Our objectives were to compare deer harvest-reporting rates over a 3-year period between mail-in archery-kill report cards (AKRC) ...
The last several decades have seen dramatic increases in ungulate populations worldwide, and whitetailed deer in the eastern United States currently exist at unprecedented densities in many areas. Numerous studies have demonstrated the effects of high densities of white-tailed deer on forest communities. However, few studies have simultaneously examined the effects of deer on multiple component...
Extreme climatic events, such as hurricanes, may profoundly affect herbivore population dynamics and habitat use by returning tracts of mature forest to early seral stages where food and cover resources rapidly develop. Modifications of habitat use by roe deer (Capreolus capreolus) following hurricane Lothar have been demonstrated in a French forest, and it has been suggested that the combinati...
White-tailed deer (Odocoileus virginianus) serve to maintain the Neospora caninum life cycle in the wild. Sera from white-tailed deer from south central Wisconsin and southeastern Missouri, USA were tested for antibodies to N. caninum by Western blot analyses and two indirect ELISAs. Seroreactivity against N. caninum surface antigens was observed in 30 of 147 (20%) of WI deer and 11 of 23 (48%)...
The mean retention time (MRT) of stained hay through the whole digestive tract and its digestibility were measured in Japanese sika deer (Cervus nippon) and were compared with those in sheep when lucerne (Medicago sativa) hay was fed at 10, 20 and 30 g/kg body-weight. The recoveries in faeces of plastic particles with five specific gravities were also measured in deer. MRT for deer was signific...
Escherichia coli O157:H7 (EC O157) is an important zoonosis. White-tailed deer (Odocoileus virginianus) have been implicated in transmission of this bacterium to humans and have been suggested as reservoirs that might affect carriage in cattle populations. Our study objectives were to estimate prevalence of EC O157 in feces of hunter-harvested deer and to describe fecal shedding patterns in a c...
Chronic wasting disease (CWD) of deer and elk is a widespread health concern because its potential for crossspecies transmission is undetermined. CWD prevalence in wild elk is much lower than its prevalence in wild deer, and whether CWD-infected deer and elk differ in ability to infect other species is unknown. Because lymphoid tissues are important in the pathogenesis of some transmissible spo...
We examined movements and behavior of female white-tailed deer (Odocoileus virginianus) relative to the acorn mast-fall from 1986 through 1989 in a mature deciduous forest in Front Royal, Virginia. Ten white-tailed deer with radiotransmitters increased their home range to incorporate acorn-producing areas during mast-fall. Consumption of acorns by deer constituted ca. 50% of foraging time durin...
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