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Effect of calving season and age on annual milk yield and fat % of Polish Black-and-White Lowland cows



Effect of calving season and age on annual milk yield and fat % of Polish Black-and-White Lowland cows



Medycyna wet, 26: 1, 42-44



Data, classified by calving quarter, are tabulated for milk production in 1967 and 1968 of milk recorded Polish Black-and-White Lowland cows on (i) a State farm in Opatow district, Poland, and (ii) on private farms in the same district.

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Accession: 014432854

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