Section 1
Chapter 267

Zeranol and dietary protein level effects on live performance, carcass merit, certain endocrine factors and blood metabolite levels of steers

Borger, M.L.; Wilson, L.L.; Sink, J.D.; Ziegler, J.H.; Davis, S.L.

Journal of Animal Science 36(4): 706-711


ISSN/ISBN: 0021-8812
PMID: 4704179
DOI: 10.2527/jas1973.364706x
Accession: 000266424

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Thirty-six bullocks were divided into 6 groups of 6, 3 of which were fed to appetite on diets with 9.5, 11.0 or 12.5% protein. The other 3 groups were given 36 mg zeranol, a resorcylic acid lactone, implanted subcutaneously at the base of the ear on days 1 and 84 of the 169-day trial, and fed on the same 3 diets.

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