摘要
文章旨在研究不同水平亚麻籽对青山羊干物质采食量、产奶性能和乳成分的影响。试验将80头健康待产的青山羊随机分为4组,分别为对照组(饲食日粮)、3.0%亚麻籽组(日粮+3.0%的亚麻籽)、4.0%亚麻籽组(日粮+4.0%的亚麻籽)、5.0%亚麻籽组(日粮+5.0%的亚麻籽),试验为期40 d。结果发现,与对照组相比,在日粮中添加不同水平的亚麻籽对青山羊干物质采食量均有显著影响(P<0.05),其中加入4.0%或5.0%的亚麻籽对提高青山羊的干物质采食量效果最显著(P<0.05),分别比对照组提高24.9%和25.0%;其次,在日粮中添加不同水平的亚麻籽对青山羊营养物质消化率也有显著影响(P<0.05),与对照组相比,4.0%亚麻籽组产奶性能和乳成分差异最显著(P<0.05),产奶量平均提高0.36 kg/d,乳脂含量比对照组提高10.1%。研究结果表明,在日粮中加入4.0%的亚麻籽,对青山羊的产奶性能促进效果最明显,可使青山羊的饲料利用效率最佳。
The aim of this experiment was to investigate the effects of dry matter intake,milk production performance and milk composition on grey goat.The results showed that compared with the control group,adding different levels of flaxseed in the diet had a significant effect on the dry matter intake of grey goats(P<0.05),and adding 4.0%or 5.0%flaxseed in the diet had the most significant effect on the dry matter intake of grey goats(P<0.05),which was 24.9%and 25.0%higher than the control group,respectively;Secondly,adding different levels of flaxseed to the diet also had a significant impact on the nutrient digestibility index of grey goats(P<0.05),among which the milk production performance and milk composition of the group adding 4.0%flaxseed had the most significant difference compared with the control group(P<0.05),the average milk yield increased by 0.36 kg/d,and the milk fat content increased by 10.1%compared with the control group.The results showed that adding 4.0%flaxseed to the diet had the most obvious effect on improving the milk production performance of the grey goat,and could make the best feed efficiency of the grey goat.
作者
朱广琴
张海涛
石丰运
随韶璞
李拥军
ZHU Guangqin;ZHANG Haitao;SHI Fengyun;SUI Shaopu;LI Yongjun(Department of Animal Engineering,Xuzhou Bioengineering Technical College,Xuzhou,Jiangsu Province 221006,China;College of Animal Science and Technology,Yangzhou University,Yangzhou,Jiangsu Province 225009,China)
出处
《中国饲料》
北大核心
2023年第8期134-137,共4页
China Feed
基金
徐州市推动科技创新项目(KC21118)
江苏省高职院校教师专业带头人高端研修团队访学项目(2022TDFX007)
江苏省高等学校基础科学(自然科学)研究项目(22KJD230001)
江苏现代农业产业技术体系建设专项资金(JATS[2022]055)。
关键词
亚麻籽
青山羊
采食量
产奶性能
乳成分
flaxseed
grey goat
food intake
milk production performance
milk composition
