Effects of Saccharomyces cerevisiae supplementation on growth performance, plasma metabolites and hormones, and rumen fermentation in Holstein calves during pre‐ and post‐weaning periods
Effects of Saccharomyces cerevisiae supplementation on growth performance, plasma metabolites and hormones, and rumen fermentation in Holstein calves during pre‐ and post‐weaning periods
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补充酿酒酵母对断奶前后荷斯坦犊牛生长性能、血浆代谢物和激素以及瘤胃发酵的影响
DOI：
10.1111/asj.13402
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发表时间：
2020
影响因子：
2
通讯作者：
Kushibiki Shiro
中科院分区：
文献类型：
--
作者：
Takemura Kei;Shingu Hiroyuki;Ikuta Kentaro;Sato Shigeru;Kushibiki Shiro
本研究旨在评估在断奶前和断奶后添加酿酒酵母（SC）对犊牛生长、代谢和激素反应以及瘤胃发酵的影响。将3周龄荷斯坦犊牛分为对照组（n= 12）和SC组（n= 12），后者每天给予2 × 109cfu的SC。试验在断奶前后进行，为期7周。SC组的日增重（DG）高于对照组（p < 0.05）。在SC组中，血浆葡萄糖、胰岛素和生长激素（GH）浓度高于对照组（p < 0.05），胰高血糖素和胰岛素样生长因子1 （IGF - 1）浓度趋于高于对照组（p < 0.1）。10周龄时，SC组瘤胃丙酸比例和瘤胃氨氮浓度显著高于对照组（p < 0.05）。断奶前后补充SC可改善饲粮营养和能量利用率，提高血浆GH和IGF‐1浓度。在补充SC的犊牛中观察到的这些变化可能与DG的改善密切相关。
This study aimed to evaluate the effects of supplementingSaccharomyces cerevisiae(SC) during the pre‐ and post‐weaning periods on growth, metabolic and hormonal responses, and rumen fermentation in calves. Three‐week‐old Holstein calves were assigned to either control (n= 12) or SC group (n= 12), the latter of which received 2 × 109cfu/day of SC. The experiment was conducted over a period of 7 weeks around weaning. Daily gain (DG) in the SC group was higher (p <.05) than that in the control group. In the SC group, plasma glucose, insulin, and growth hormone (GH) concentrations were higher (p <.05) and concentrations of glucagon and insulin‐like growth factor 1 (IGF‐1) tended to be higher (p <.1) than in the control group. Proportion of rumen propionate and concentration of rumen ammonia nitrogen at 10 weeks of age were greater (p <.05) in the SC group than that in the control group. Supplementation of SC around weaning may improve dietary nutrient and energy availability and increase plasma GH and IGF‐1 concentrations. These changes observed in SC‐supplemented calves could be closely related to the improvement of DG.