荷斯坦青年牛初次配种妊娠月龄对头胎和二胎产奶量和繁殖性能的影响
赵善江, 帅志强, 庞云渭, 郝海生, 邹惠影, 杜卫华, 赵学明, 朱化彬
Effect of Age at First Pregnancy on Milk Production and Reproductive Performance During the First 2 Lactations in Holstein Dairy Cattle
ZHAO Shanjiang, SHUAI Zhiqiang, PANG Yunwei, HAO Haisheng, ZOU Huiying, DU Weihua, ZHAO Xueming, ZHU Huabin
畜牧兽医学报
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2020, (4): 732
-742
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DOI: 10.11843/j.issn.0366-6964.2020.04.009
