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Position: Home > Articles > Effects of Different Zinc Sources on Milk Yields and Milk Quality in Cows FOOD SCIENCE 2005,26 (9)

不同锌源对奶牛产奶量和乳品质的影响

作  者:
高峰;江芸;黄献林
单  位:
南京农业大学动物科技学院;南京师范大学金陵女子学院食品科学系
关键词:
奶牛;锌源;产奶量;乳品质
摘  要:
本试验采用3×3拉丁方设计,将9头中国荷斯坦奶牛分为3组,分别饲喂对照组基础日粮,补加蛋氨酸锌日粮(锌含量400mg),补加氧化锌日粮(锌含量400mg),研究补饲不同锌源对奶牛产奶量及乳品质的影响。结果表明,不同来源的锌对奶牛产奶量均有不同程度提高,蛋氨酸锌提高幅度大于氧化锌,但差异不显著(p>0.05);对乳脂率无明显影响;补锌可增加乳中锌的含量,蛋氨酸锌比氧化锌明显(p<0.05)。
译  名:
Effects of Different Zinc Sources on Milk Yields and Milk Quality in Cows
作  者:
GAO Feng1,JIANG Yun2,HUANG Xian-lin1 (1.College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; 2. Department of Food Science, Ginling College, Nanjing Normal University, Nanjing 210097, China)
关键词:
cows;zinc sources;milk yields;milk quality
摘  要:
Nine Chinese Holstein cows were used in a replicated 3×3 Latin square design to study the effects of different zinc sources on milk yields and milk quality. Based diets supplemented with Zinc methionine(Zn-Met) and Zinc oxide(ZnO) containing 400mg zinc. The results showed that different zinc sources could increase milk yields, Zn-Met was better than ZnO, but not significant(p>0.05). No significant effect on milk fat rate (p>0.05). Zinc added to diets could increase the content of zinc in milk, significant effects were observed Zn-Met comparing with ZnO (p <0.05).

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