摘要
采用批次培养的方法,研究了体外条件下日粮添加甘露寡糖对生长绵羊瘤胃发酵功能的影响。甘露寡糖的添加水平为0,0.20%,0.40%,0.60%,0.80%以及1.00%。结果表明,日粮添加甘露寡糖可以提高培养液中的挥发性脂肪酸(VFA)含量;可以提高培养液中的菌体蛋白(BCP)含量,并以0.60%的添加量效果最佳;添加量在0.80%以上时,可以显著降低(P<0.05)培养液中的NH3-N含量;对培养残渣中的中性洗涤纤维(NDF)含量没有显著影响(P>0.05)。研究初步证明,日粮添加甘露寡糖可以在一定程度上提高生长绵羊的瘤胃发酵功能。
This study was conducted to investigate the effect of dietary addition of mannan oligosaccharides（MOS） on rumen fermentation of growing sheep in vitro by batch culture procedure. The addition levels of MOS were 0（control group）, 0.20%, 0.40%, 0.60%, 0.80% and 1.00% respectively. The results showed that higher VFA concentration and BCP production in the incubation fluids were detected in the treatments to which MOS was added and the highest BCP production was found when the supplementation level was 0.60%. There was a significant decrease（P〈0.05） in NH3-N concentration in the incuhation fluids when the addition level was over 0.80%. No significant effect（P〉0.05） was found on the NDF content in the culture residue by the addition of MOS. Preliminary study implys that dietary addition of MOS can improve the rumen fermentation of growing sheep to some degree.
出处
《饲料博览》
2006年第9期6-9,共4页
Feed Review
基金
国家自然科学基金项目(30460094)
关键词
体外法
日粮
甘露寡糖
生长绵羊
瘤胃发酵
in vitro
diets
mannan oligosaccharides
growing sheep
rumen fermentation
