湿啤酒渣组合对经产奶牛产奶性能的影响

发布时间：2018-05-03 23:26

本文选题：湿啤酒渣 + 产奶量　；参考：《西南农业学报》2017年03期

【摘要】：本研究采用湿啤酒渣、饲料枣和大豆皮3种组合替代部分玉米-豆粕型日粮测定奶牛产奶性能的影响效果。40头产奶日期相近(112.4±12.17 DIM)的经产荷斯坦奶牛随机分为4个试验组,玉米-豆粕型日粮的对照组粗蛋白质(CP)为13.94%、产奶净能(NEl)7.24 MJ/kg和赖氨酸(Lys)0.58%,试验1组到3组依次为饲料枣和大豆皮组合、湿啤酒渣和饲料枣组合及湿啤酒渣、饲料枣和大豆皮组合。结果表明,试验3组产奶量平均为27.75 kg/d,略高于与对照组(27.20 kg/d)和试验2组(27.25 kg/d),高于试验1组产奶量(26.65 kg/d),但差异不显著(P0.05);试验3组血液生化指标中仅血尿素氮(4.42 mmol/L)明显低于试验1组(5.26 mmol/L)(P0.05);试验3组和2组的产奶纯收入最高,试验1组和对照组的最低(P0.05)。日粮粗蛋白质水平保持在13.9%条件下,添加湿啤酒渣和饲料枣的快速降解非纤维碳水合化物和降解蛋白质可以弥补日粮中赖氨酸浓度的不足,湿啤酒渣组合有助于提高产奶量,增加产奶纯收入。
[Abstract]:In this study, wet-beer dregs, fodder jujube and soybean husk were used to substitute for the effect of corn-soybean meal diet on milk production performance of dairy cows. Forty Holstein cows with similar milk production dates (112.4 卤12.17 DIMs) were randomly divided into four experimental groups. The crude protein content of the control group was 13.94, the milk producing net energy was NEl7.24 MJ/kg and lysine Lys.0.58.The groups 1 to 3 were feed jujube and soybean husk, wet beer residue and feed jujube and wet beer dregs, feed jujube and soybean husk. The results show that The average milk yield of group 3 was 27.75 kg / d, which was slightly higher than that of control group (27.20 kg / d) and group 2 (27.25 kg / d), and higher than that of group 1 (26.65 kg / d), but the difference was not significant (P 0.05). Group 1: 5.26 mmol / L, P 0.05; Group 3 and Group 2 had the highest net income for milk production, The lowest level of P0. 05 was found in group 1 and control group. Under the condition of keeping the crude protein level in the diet at 13.9%, the rapid degradation of non-fiber carbohydrate and protein by adding wet beer residue and feed jujube can make up for the deficiency of lysine concentration in the diet, and the combination of wet beer residue can improve the milk yield. Increase the net income from milk production.
【作者单位】：山东省农业科学院畜牧兽医研究所;山东省畜禽疫病防治与繁育重点实验室;山东美事达农牧科技有限公司;
【基金】：山东省农科院科技创新重点项目(2014CZ02-1) 山东省现代农业产业技术体系创新团队建设项目(SDAIT-12-011-07) 现代农业(肉牛牦牛)产业技术体系建设专项资金(CARS-38)
【分类号】：S823.5

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