饲料研究2024，Vol.47Issue(13)：7-10,4.DOI:10.13557/j.cnki.issn1002-2813.2024.13.002
米曲霉培养物对冷季泌乳牦牛产奶量、乳成分、血浆生化及免疫指标的影响
Effects of Aspergillus oryzae culture on milk yield,milk composition,plasma biochemical,and immune indicators in lactating yaks during cold season
摘要
Abstract
The study investigates the effects of supplementing Aspergillus oryzae culture on the milk yield,milk composition,plasma biochemical,and immune indicators of lactating yaks during the cold season.A single-factor experimental design was employed,16 lactating yaks with the similar parity,calving dates,and body weight were randomly divided into two groups with eight replicates in each group and one yak in each replicate.The control group was supplemented without additives,while the Aspergillus oryzae culture group received 100 g/(head·d)of Aspergillus oryzae culture during supplementation.The pre-test period was one week and the formal test period was five weeks.The results showed that compared to the control group,Aspergillus oryzae culture group significantly increased the milk fat percentage on the 18th day and the milk protein and lactose percentages on the 18th and 35th days(P＜0.05).On the 35th day,the Aspergillus oryzae culture group had an extremely higher plasma albumin(ALB)content(P＜0.01),and significantly increased glucose(GLU)and triglyceride(TG)contentrations(P＜0.05),while the plasma urea nitrogen(BUN)content was extremely reduced(P＜0.01).On the 18th and 35th day,compared to the control group,the Aspergillus oryzae culture group also had a significantly increased plasma immunoglobulin A(IgA)content(P＜0.05)and an extremely increased immunoglobulin M(IgM)content(P＜0.01).On the 18th day,the immunoglobulin G(IgG)content in Aspergillus oryzae culture group was extremely increased(P＜0.01).The results indicate that Aspergillus oryzae culture can improve the milk quality,immune function,and the utilization rate of dietary energy and protein in yaks during the cold season.关键词
米曲霉培养物/泌乳牦牛/冷季/产奶量/乳成分/血浆生化指标/免疫指标Key words
Aspergillus oryzae culture/lactating yaks/cold season/milk yield/milk composition/plasma biochemical indicators/immune indicators分类
农业科技引用本文复制引用
姜南,修雨荷,邵婷婷,贡觉郎珍,孙光明,洛桑顿珠,巴桑旺堆..米曲霉培养物对冷季泌乳牦牛产奶量、乳成分、血浆生化及免疫指标的影响[J].饲料研究,2024,47(13):7-10,4.基金项目
"十四五"重大科技专项(项目编号:XZ202101ZD0002N) （项目编号:XZ202101ZD0002N）
中央引导地方科技发展基金(项目编号:XZ202101YD0017C) （项目编号:XZ202101YD0017C）
