Effect of Zilpaterol Hydrochloride on Performance and Meat Quality in Finishing Lambs
| Autor: | R. Rojo-Rubio, Agustín Olmedo-Juárez, Leonel Avendaño-Reyes, Héctor Aarón Lee-Rangel, José Alejandro Roque-Jiménez, Veronica Gonzalez-del-Prado, Alfonso J. Chay-Canul, Jorge Adalberto Cayetano-De-Jesus, Alicia Grajales-Lagunes, Ulises Macías-Cruz |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0303 health sciences
Control treatment 0402 animal and dairy science Zilpaterol hydrochloride Randomized block design 04 agricultural and veterinary sciences Plant Science Biology 040201 dairy & animal science lcsh:S1-972 meat quality 03 medical and health sciences lamb performance Animal science hair breeds Dry matter lcsh:Agriculture (General) Agronomy and Crop Science zilpaterol hydrochloride 030304 developmental biology Food Science Linear trend |
| Zdroj: | Agriculture Volume 10 Issue 6 Agriculture, Vol 10, Iss 241, p 241 (2020) |
| ISSN: | 2077-0472 |
| DOI: | 10.3390/agriculture10060241 |
| Popis: | Twenty-four Dorper x Pelibuey lambs were housed in individual pens during a 31-d feeding period and assigned to four treatments (n = 6) under a randomized complete block design with different daily doses of zilpaterol hydrochloride (ZH): 0 (control), 0.1, 0.2, and 0.3 mg/kg BW to determine the effects of ZH supplementation on productive performance, meat quality, and wholesale cut yields. Final BW (p = 0.02) and average daily gain (ADG, p = 0.04) were greater in lambs supplemented with 0.2 mg/kg BW. Supplemental ZH tended to improve dry matter intake (DMI, p = 0.008) and ADG:DMI ratio (p = 0.078). Wholesale cut yields were not affected by ZH supplementation. Percentage of head was greater (p = 0.04) in lambs treated with ZH. The ZH supplementation did not affect carcass characteristics. However, longissimus thoracis et lumborum (LTL) presented a linear trend (p = 0.08) of increasing with ZH supplementation. Percentage of blood presented a trend (p = 0.051) of decreasing with ZH supplementation. Also, liver decreased in size (p < 0.05) for treatments where ZH was included. Values of luminosity decreased (p < 0.02) when ZH dosage increased. The value of protein Lowry was greater, with 0.3 mg kg&minus 1 (p = 0.04). Cathepsin B + L was greater in the lambs from the control treatment (p = 0.05). In conclusion, using a daily ZH dosage of 0.2 mg per kg of BW produced the best productive performance, carcass characteristics, and some changes in the meat of hair-breed lambs. |
| Databáze: | OpenAIRE |
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