The objective of the study is to call for concerns of scientific design of cattle barn in order to create favorably environmental conditions for dairy cattle, and to promote health development of dairy husbandry in China.

其目的在于引起行業(yè)內(nèi)對奶牛舍設(shè)計欧美性交片视频、建造科學性的重視98超碰人人与人人欧美，為奶牛生產(chǎn)創(chuàng)造良好的環(huán)境條件，以促進我國奶業(yè)的健康發(fā)展国产色福利影院。

This article on how to control the quality and safety of raw milk made a number of management practices, as well as a reasonable proposal, and the production of raw milk to strengthen the management of dairy cattle husbandry, milking the implementation of reasonable standards of raw materials to increase the technology content of milk production.

本文對于如何控制原料乳質(zhì)量安全提出了一些合理的管理辦法以及建議偷自拍另类亚洲清纯唯美，及對原料乳的生產(chǎn)上要加強奶牛的飼養(yǎng)管理爱爱视频在哪里考，執(zhí)行合理的擠奶規(guī)范，提高原料乳生產(chǎn)的科技含量久久性生活视频免费。問題補充：在線翻譯被老師否定黑人一级婬片A片免费无码，跪求高手

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dairy cattle husbandry：乳牛業(yè)

Dairy Science Abstracts (英) 乳業(yè)文摘 | dairy cattle husbandry 乳牛業(yè) | Dairy Improvement Association 乳牛改良協(xié)會