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当前位置: 首页 > 文章 > 围产期不同水平阴阳离子差日粮对奶牛生产性能的影响 中国奶牛 2018 (4) 5-9
Position: Home > Articles > The Study on Lactation Performance of Periparturient Cows Fed Diets with Varying Cation-anion Difference China Dairy Cattle 2018 (4) 5-9

围产期不同水平阴阳离子差日粮对奶牛生产性能的影响

作  者：
张震宇;李龙瑞;张吉鹍
单  位：
江西省农业科学院畜牧兽医研究所;江西新天地药业有限公司兽药研究院;湖北博大生物股份有限公司动物繁殖与营养工程技术研究中心;中国农业科学院北京畜牧兽医研究所动物营养学国家重点实验室
关键词：
红壤地区;围产期;日粮阴阳离子差;泌乳性能;体细胞数
摘  要：
试验旨在研究不同水平阴阳离子差(DCAD)日粮对江西红壤地区围产期奶牛泌乳性能的影响。将12头荷斯坦经产干奶牛按照随机区组设计分为3组:对照组、试验1组和试验2组,其日粮DCAD水平分别为+103.27m Eq/kg DM、-109.61m Eq/kg DM和-157.83m Eq/kg DM。结果表明:围产期奶牛日粮干物质采食量、日泌乳量、乳成分(乳蛋白率、乳脂率与乳糖率)未受到DCAD水平影响(P>0.05);尿液p H、乳中体细胞数随DCAD水平的降低而降低,两个试验组均显著低于对照组(P<0.05),但两试验组间的差异不显著(P>0.05)。结果提示:在江西红壤地区养殖奶牛,可以给围产期奶牛添加阴离子盐以降低日粮阴阳离子差水平,不仅不会影响产后泌乳性能,而且还能降低乳中体细胞数,提高牛奶品质。在本研究条件下,奶牛围产期日粮阴阳离子差水平以-110~-150mEq/kg DM为宜。
译  名：
The Study on Lactation Performance of Periparturient Cows Fed Diets with Varying Cation-anion Difference
作  者：
ZHANG Zhen-yu;LI Long-rui;ZHANG Ji-kun;State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Science;Veterinary Medicine Research Institute, Jiangxi New World Pharmaceutical Co.Ltd;Institute of Animal Science, Jiangxi Academy of Agricultural Science;Engineering Technological Research Center for Animal Reproduction and Nutrition, Hubei Poder Biotechnology Co.Ltd;
关键词：
Red soil regions;;Periparturient cow;;Dietary cation-anion difference;;Lactation performance;;Somatic cell count
摘  要：
The objective of this study was to evaluate the lactation performance of periparturient cows fed diets with varying cation-anion difference(DCAD) in Jiangxi Red Soil Regions(JRSR). Totally 12 Holstein multiparous cows were randomly assigned to 3 blocks of 4 cows and were fed 1 of 3 diets with DCAD at +103.27 m Eq/kg,-109.61 m Eq/kg DM and-157.83 m Eq/kg DM for control, treatment 1 and treatment 2, respectively. The results showed that feeding of lower DCAD did not alter dry matter intake(DMI), milk yield, milk composition(Milk protein, fat and lactose) of 3 DCAD treatments(P>0.05), but reduce the urine p H and milk somatic cell count(P<0.05)compared with control. However, the difference of urine p H and milk somatic cell count between treatment 1 and treatment 2 was not significant(P>0.05). It is suggested that anionic salts supplementation(-110~-150 m Eq/kg DM) in the dry-off diet for cows in JRSR is appropriate which may lead to reduce milk somatic cell count with non-significant impact on DMI and lactation performance.

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