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Effect of different hand-milking techniques on milk production and teat treatment in Zebu dairy cattle

机译：各种挤奶技术对瘤牛奶牛产奶和乳头处理的影响

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The aim of the study was to test three different hand-milking techniques ("pull down", "thumb in", and "full hand grip") and their effects on milk production and teat treatment. This is important since milk production in many tropical areas still rely on hand-milking. The study was carried out at a peri-urban farm in the Bobo-Dioulasso area in Burkina Faso. Twelve indigenous Zebu cows in early lactation were used in the study. The sequences of the treatments (hand-milking techniques) and the milkers were balanced for carry-over effects between successive periods and days, respectively. The sequences were constructed by using special Latin squares. Yield and composition of saleable milk was not affected by milking technique but there were differences between the milkers in milk yield. There was also a significant interaction for saleable milk yield between milker and milking technique. Hemoglobin in milk was measured as an indicator of teat damage. The hemoglobin content was numerically higher in post-milking strip milk samples than in saleable milk. It was concluded that the amount of milk removed depends mainly on the milker and how well the milking technique works for the individual milker. No effect of milking technique was observed on teat treatment.
机译：这项研究的目的是测试三种不同的挤奶技术（“下拉”，“缩进”和“完全握力”）及其对牛奶生产和乳头处理的影响。这很重要，因为许多热带地区的牛奶生产仍然依靠人工挤奶。这项研究是在布基纳法索Bobo-Dioulasso地区的一个郊区农场进行的。在研究中使用了十二头泌乳早期的本地封牛。处理的顺序（人工挤奶技术）和挤奶器的平衡分别针对连续周期和几天之间的残留效应。序列是使用特殊的拉丁方构建的。可销售牛奶的产量和组成不受挤奶技术的影响，但是挤奶者之间的牛奶产量存在差异。挤奶机和挤奶技术之间可售牛奶产量之间也存在显着的相互作用。测量牛奶中的血红蛋白作为乳头损伤的指标。挤奶后的脱脂牛奶样品中的血红蛋白含量在数值上高于可销售牛奶中的含量。结论是，除去的牛奶量主要取决于挤奶机以及挤奶技术对单个挤奶机的效果。挤奶技术对乳头处理没有影响。

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