Zilpaterol hydrochloride improves growth performance and carcass traits without affecting wholesale cut yields of hair sheep finished in feedlot
| Autor: | Benito Albarran, S. A. Soto-Navarro, R. Rojo-Rubio, José F. Vázquez, Leonel Avendaño-Reyes, Ulises Macías-Cruz, Juan E. Guerra |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
medicine.medical_specialty wholesale cuts Meat packing industry animal diseases Ram sheep Biology 03 medical and health sciences Animal science medicine Productivity lcsh:Veterinary medicine General Veterinary business.industry β2-adrenergic agonists 0402 animal and dairy science Zilpaterol hydrochloride food and beverages 04 agricultural and veterinary sciences 040201 dairy & animal science Surgery 030104 developmental biology Key factors Feedlot lcsh:SF600-1100 Animal Science and Zoology business carcass |
| Zdroj: | Journal of Applied Animal Research, Vol 46, Iss 1, Pp 375-379 (2018) |
| ISSN: | 0974-1844 0971-2119 |
| Popis: | Fourteen Dorper × Pelibuey ram lambs (initial body weight [BW] = 37.4 ± 1.0 kg and age = 4.5 mo) were housed in individual pens during a 30-d feeding period, and then slaughtered to determine the effects of zilpaterol hydrochloride (ZH) supplementation on productive performance, carcass characteristics and wholesale cut yields. Lambs were assigned under a randomized complete block design (initial BW as blocking factor) to one of two dietary treatments: basal diet without (control) or with 10 mg daily of ZH/lamb. Lambs fed ZH had greater (P ≤ .04) final BW, average daily gain and dry matter intake, but similar (P = .24) feed efficiency compared with control lambs. Hot and cold carcass weight, dressing percentage, longissimus muscle area and leg perimeter were greater (P ≤ .05) for ZH-fed lambs than for control lambs. With exception of blood percentage which decreased (P |
| Databáze: | OpenAIRE |
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