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Comparisons of two different systems of feeding dairy cows for three consecutive lactations

Comparisons of two different systems of feeding dairy cows for three consecutive lactations

J. Dairy Sci, 53: 5, 561-65

Comparisons were made between groups of Holstein-Friesian cows fed maize silage ad lib. with concentrates at 2 levels, or complete feeds ad lib. in which concentrate to roughage ratios were either 60: 40 or 70: 30. Performance was studied over 3 lactations. Intakes of DM and TDN by the 4 groups were not significantly different, nor were yields of milk and milk fat, and fat and protein %.

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Accession: 014392547

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DOI: 10.3168/jds.S0022-0302(70)86253-1

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