The Effect of Dietary Supplementation of Yeast Culture on Rumen Fermentation Parameters and Duodenal Flow of Amino Acid in Growing Goats

doi:10.7668/hbnxb.2009.06.022

Abstract

Abstract: This experiment was conducted to study the effect of dietary supplementation of Y ikang XP and yeast culture(YC)on rumen fermentation parameters and duodenal flow of amino acid(AA)in growing goats.Three goats((15 ± 215)kg)were fitted with ruminal and duodenal cannulae and allocated to three dietary treatments in a 3 × 3 Latin square design.The goats were fed a same basic ration and supplemented with Y ikang XP and YC both at 0.25 % level.The results showed that there was an increasing tendencyof ruminal pH value and NH32N concentration when supplemented with YC,and a decreasing tendency of ruminal pH value and NH32N concentration was observed when supplemented with Y ikang XP.The content of total volatile fatty acid(TVFA) decreased by 20.61 % and 3.98 %(P > 0.05)when supplemented with Y ikang XP and YC,respectively.There were no significantly(P > 0.05)differences of the content of TVFA,individual VFA content and its ratio,and the ratio of acetic acid to propionate acid when supplemented with Y ikang XP and YC.The dietary supplementation of Y ikang XP and YC did not affect(P > 0.05)the duodenal flowof AA,the duodenal flow of AA for the YC treatment was higher than that for the Y ikang XP treatment.In conclusion,the dietary supplementation of YC had positive effects on regulation of rumen fermentation and promotion of rumen microbial protein synthesis.

Key words: Yeast culture, Rumen fermentation, Amino acid, Flow, Goats

CLC Number:

S816.
S82

ZHOU Chuan-she, LI Zhi-feng, TAN Zhi-liang, GAO Teng-yun. The Effect of Dietary Supplementation of Yeast Culture on Rumen Fermentation Parameters and Duodenal Flow of Amino Acid in Growing Goats[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2009, 24(6): 109-115. doi: 10.7668/hbnxb.2009.06.022.

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