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Journal of Dairy Science Vol. 51 No. 10 1701-1702
© 1968 by American Dairy Science Association ®
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Hydrolyzed Feather Meal as a Protein Supplement for Lactating Dairy Cows

A. H. Rakes, D. G. Davenport and J. D. Pettyjohn

Department of Animal Science

A. C. Linnerud

Department of Experimental Statistics, North Carolina State University, Raleigh

ABSTRACT

When a 15-day prepartum adaptation period was allowed, addition of hydrolyzed feather meal to the concentrate portion of the ration at 3.5, 6.7, and 9.7% levels did not significantly alter the feed intake, milk production, or body weight of dairy cows during the first 12 wk postpartum. The abrupt addition of the same amounts to the concentrate fed dairy cows in various stages of lactation caused substantial reductions in concentrate consumption.






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Copyright © 1968 by the American Dairy Science Association ®.