| Nitrogen and fiber concentration in rumen contents and fecescontents of Mongolian gazelles |
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| 作者姓名： | 马建章 李俊生 姜兆文 顾明波 |
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| 作者单位： | Ma Jianzhang; Li Junsheng; (College of Wildlife Resources，Northeast Forestry University Harbin 150040，P R. China)Jiang Zhaowen (Tokyo University，Japan)Gu Mingbo (College of Wildlife Resources，Northeast Forestry University，Harbin 150040，P R. China) |
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| 摘 要： | lntroductionWiIdlifemanagersdesirereIiableindicatorsofnu-tritionaIstatusoffree-rangingunguIatestoassessreIationshipsbetWeenhabitatsandpopuIations.ThenutritionaIconditionofunguIatesisstrongIyaffectedbytheirfOodquality,andasunguIatesreguIarlyexpe-riencenitrogenshortages(White1978IRobbins1983),itispaFticuIarlyimportanttoknowthenitrogenconcentrationoftheirfoodpIants.onecommonmethodofestimatingquaIityofungulatedietsisana-IysisnutritionaIquaIityofforagepIantsgrowinginhabitats.However,indisc…
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| 收稿时间： | 8 March 1999 |
Nitrogen and fiber concentration in rumen contents and feces contents of Mongolian gazelles |
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| Ma Jianzhang,Li Junsheng,Jiang Zhaowen,Gu Mingbo.Nitrogen and fiber concentration in rumen contents and fecescontents of Mongolian gazelles[J].Journal of Forestry Research,1999,10(2):103-106. |
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| Authors: | Ma Jianzhang Li Junsheng Jiang Zhaowen Gu Mingbo |
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| Institution: | (1) College of Wildlife Resources, Northeast Forestry University, 150040 Harbin, P. R. China;(2) Tokyo University, Japan |
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| Abstract: | Fecal indicators of nutritional status of wild ungulates were less constrained than that of blood, rumen contents, or urine analyses. Thus, we compared the nitrogen and fiber concentrations of feces with those of the rumen contents of Mongolian gazelles (Procapra guttrurosa) in Hulunbeier Grassland. Rumen contents and fecal nutritional concentrations varied in different seasons. Dietary nitrogen concentrations only increased linearly with increase nitrogen concentration in fecal in winter. There was a positive correlation between rumen NDF (neutral detergent fiber) and fecal NDF concentrations. But the regression coefficient was small (r=0.3917). There was a significant regression equation between rumen contents ADF (acid detergent fiber) and fecal ADF concentrations,as well as ADL (acid detergent lignin) concentrations. Nitrogen concentration was found to be negatively correlated with NDF ADF and ADL concentrations both in rumen and in fecal compositions. Our data suggest that fecal nitrogen, ADF ADL concentrations may assess winter dietary qualities that are in protein, crude fiber and lignin concentrations for Mongolian gazelles. |
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| Keywords: | Procapra guttrurosa Rumen content Feces Nitrogen concentration Fiber concentration |
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