The effects of zilpaterol hydrochloride supplementation on market dairy cow performance, carcass characteristics, and cutability

Autor: J.M. Hodgen, Bradley K. Lowe, M. N. Streeter, Alexander M. Stelzleni, J.A. Safko, Jacob R. Segers, Rena L. Stewart, T. D. Pringle, M.A. Froetschel, R. O. McKeith
Rok vydání: 2012
Předmět:
Zdroj: The Professional Animal Scientist. 28:150-157
ISSN: 1080-7446
DOI: 10.15232/s1080-7446(15)30335-1
Popis: Market dairy cows (n = 34) were used to determine the effects of zilpaterol hydrochloride (ZH) supplementation, in addition to concentrate feeding, on growth performance, carcass characteristics, and carcass yields. Cows were stratified by BW and randomly assigned to 1 of 2 treatments: 1) concentrate fed for 42 d (control) or 2) concentrate fed for 42 d with ZH (8.33 mg/kg) from d 19 to 39. Dietary supplementation of ZH had no effect (P > 0.05) on locomotion score, BCS, BW, ADG, G:F, or DMI over the course of the feeding period. Supplementation with ZH increased (P
Databáze: OpenAIRE