SURVEY OF CALF AND HEIFER MANAGEMENT-PRACTICES IN PENNSYLVANIA DAIRY HERDS

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HEINRICHS, AJ
KIERNAN, NE
GRAVES, RE
HUTCHINSON, LJ
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10.3168/jds.S0022-0302(87)80090-5
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S8 [畜牧、 动物医学、狩猎、蚕、蜂];
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0905 ;
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页码:896 / 904
页数:9
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