Section 2
Chapter 1,972

The effect of bovine somatotropin with or without avoparcin on milk yield, milk composition, body weight, body condition score and reproductive performance of autumn calving Friesian dairy cows

Murphy, M.; O' Callaghan, D.; Rath, M.; Roche, J.F.

Journal of Dairy Science 72(Suppl 1): 444-445


ISSN/ISBN: 0022-0302
Accession: 001971219

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In a trial with 48 cows, treatment for 84 days with somatotropin (20.6 mg), avoparcin (100 mg) or both increased milk yield by 18.8, 7 and 25.6% resp., without effects on milk composition, body weight, body condition or reproductive performance.

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