青贮柑橘渣代替部分精料对奶牛产奶量、乳成分及饲料成本的影响
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- 英文论文题名：Effect of partial substitution of concentrate with citrus pulp silage on milk yield,milk composition and feed cost of dairy cows
- 论文作者：姚焰础 ; 江山 ; 肖融 ; 黄健
- 英文论文作者：Yao Yanchu ; Jiang Shan ; Xiao Rong ; Huang Jian ; Chongqing Academy of Animal Sciences ; Key Laboratory of Pig Industry Sciences of Agriculture Ministry ; Chongqing Key Laboratory of Pig Industry Sciences
- 年：2016
- 作者机构：重庆市畜牧科学院;农业部养猪科学重点实验室;养猪科学重庆市市级重点实验室;
- 论文关键词：青贮柑橘渣 ; 奶牛 ; 产奶量 ; 乳成分 ; 饲料成本
- 英文论文关键词：citrus pulp silage ; dairy cow ; milk yield ; milk composition ; feed cost
- 会议召开时间：2016-11-04
- 会议录名称：中国畜牧兽医学会动物微生态学分会第五届第十二次全国学术研讨会论文集
- 语种：中文
- 分类号：S823.5
- 学会代码：ZGXJ
- 会议名称：中国畜牧兽医学会动物微生态学分会第五届第十二次全国学术研讨会
- 会议地点：中国山东青岛
- 主办单位：中国畜牧兽医学会动物微生态学分会
- 学会名称：中国畜牧兽医学会
- 页数：1
- 文件大小：55k
- 原文格式：O
- 会议级别：全国
摘要
按鲜柑橘渣76%、麦麸15%、酒糟8%、乳酸菌等添加剂1%的比例进行青贮。选择24头泌乳荷斯坦奶牛,配对分配到4组,每组6头。`组每头奶牛每天饲喂8公斤精料、12公斤青贮玉米秸秆和8公斤青草,Ⅱ组用3kg青贮柑橘渣代替1kg精料,Ⅲ组用6kg青贮柑橘渣代替2kg精料,Ⅳ组用9kg青贮柑橘渣代替3kg精料。预饲期7天,正式试验期20天。每天记录每头奶牛的产奶量。收集试验最后3天的奶样,混合,用乳品分析仪测定乳成分。试验结果表明:青贮柑橘渣代替部分精料均有提高奶牛产奶量和乳脂率的趋势,均能大幅降低奶牛饲料成本,其中9kg青贮柑橘渣代替3kg混合精料的饲料成本最低,比对照组减少了24.51%。
Citrus pulp silage was prepared on the basis of the formula of fresh citrus pulp 76%,wheat bran 15%,distiller's grain 8%,lactic acid bacteria and other additives 1%.Twenty-four lactating Holstein cows were allocated equally into 4 groups according to matched-pair grouping design.Each cow in Treatment Ⅰ fed with 8 kg of concentrate,12 kg of corn straw silage and 8 kg of grass per day.Treatment Ⅱ,Ⅲ and Ⅳ with 3kg,6kg,9kg citrus pulp silage instead of 1kg,2kg,3kg concentrate,respectively.The preparation period was 7 days and formal experiment period was 20 days.Milk yield of each cow was recorded daily.Milk samples were collected at the end of the last 3 days of the trial,and milk composition was measured with a milk analyzer.The results showed that citrus pulp silage instead of partial concentrate has a tendency to increase milk yield and fat content,can sharply reduce the cost of dairy feed.The feed cost of cows fed 9kg citrus pulp silage instead of 3kg concentrate is the lowest,and it is 24.51%lower than that of the control group.
Citrus pulp silage was prepared on the basis of the formula of fresh citrus pulp 76%,wheat bran 15%,distiller's grain 8%,lactic acid bacteria and other additives 1%.Twenty-four lactating Holstein cows were allocated equally into 4 groups according to matched-pair grouping design.Each cow in Treatment Ⅰ fed with 8 kg of concentrate,12 kg of corn straw silage and 8 kg of grass per day.Treatment Ⅱ,Ⅲ and Ⅳ with 3kg,6kg,9kg citrus pulp silage instead of 1kg,2kg,3kg concentrate,respectively.The preparation period was 7 days and formal experiment period was 20 days.Milk yield of each cow was recorded daily.Milk samples were collected at the end of the last 3 days of the trial,and milk composition was measured with a milk analyzer.The results showed that citrus pulp silage instead of partial concentrate has a tendency to increase milk yield and fat content,can sharply reduce the cost of dairy feed.The feed cost of cows fed 9kg citrus pulp silage instead of 3kg concentrate is the lowest,and it is 24.51%lower than that of the control group.
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