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zuo niu huo zhong sui nian ling he ji jie de bian hua
Pages: 61-62+53
Year: Issue:  2
Journal: China Yak

Abstract: 总结分析以年龄和季节而异的各种生理状态下牦牛活重情况的研究结果;根据牦牛的生物学特点,认为集中产犊期是合理的,其优点在于减少牦牛冬季活重的损失,提高产犊率,改善其生长发育。
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