红色荷斯坦牛与西改牛杂交一代产奶性能的研究

张喜忠;李军;杨效民;靳光;赵乃喜;张社民

Study on Milk-yield Performance of Crossbreeding F1 by Red Holstein and Improved Simmental

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China Animal Husbandry & Veterinary Medicine . 2007, (12): 84 -85 .