Effects of Flavonoid of Oxytropis glabra DC on Microbial Number in Rumen of Sheep

doi:10.7668/hbnxb.2014.S1.028

Abstract

Abstract: 12 Hetian sheep were divided into 4 groups(the control group and experimental groupⅠ,Ⅱ,Ⅲ) to investigate the effects of flavonoid of Oxytropis glabra DC feeding on microbial number in rumen,reveal the utilization of O.glabra DC in future.The dried plant of the O.glabra DC was comminuted,and three experimental groups were fed with flavonoid of O.glabra DC at 10,30,50 mg/kg everyday respectively during the test period.The sheep consumed the forages freely until typical symptoms were observed.The test period was 35 d.Before challenge test and at intervals of 7 days in this test,rumen liquid was collected and the microbial number were test.The results demonstrated that the number of total bacteria in experimental group Ⅰ and experimental group Ⅱ were significantly higher than normal control group from 21 d(P<0.05),and the number of total bacteria in experimental group Ⅲ were not obvious in brainstem(P>0.05).The correlations between flavonoid of O.glabra DC and number of Anaerobic fungi and protozoa in rumen were poor. The number of Fiber degrading bacteria in rumen of experimental group Ⅰ and experimental group Ⅱ had no significant changes,The number of Ruminncnccus albus and Ruminococcus flavefaciens in experimental group Ⅲ were lower than normal control group,but had not obvious in brainstem(P>0.05).The results showed that the amount dose of flavonoid of O.glabra DC had no bad effects on microbial number in sheep.

Key words: Oxytropis glabra DC, Sheep, Flavonoid, Rumen, Microbial number

CLC Number:

S823

WANG Shuai, JIA Qi-zhen, CHEN Gen-yuan, ZHANG Ling, MA Chun-hui. Effects of Flavonoid of Oxytropis glabra DC on Microbial Number in Rumen of Sheep[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2014, 29(S1): 136-141. doi: 10.7668/hbnxb.2014.S1.028.

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