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Effect of Zilpaterol Hydrochloride on Performance and Meat Quality in Finishing Lambs
| Content Provider | MDPI |
|---|---|
| Author | Leonel, Avendaño-Reyes Agustin, Olmedo-Juárez Jos, é Alejandro Roque-Jiménez De-Jesus, Jorge Adalberto Cayetano- Rojo-Rubio, Rolando Grajales-Lagunes, Alicia Macias-Cruz, Ulises Del-Prado, Veronica Gonzalez- Chay-Canul, Alfonso Lee-Rangel, Héctor Aarón |
| Copyright Year | 2020 |
| Description | 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−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. |
| Starting Page | 241 |
| e-ISSN | 20770472 |
| DOI | 10.3390/agriculture10060241 |
| Journal | Agriculture |
| Issue Number | 6 |
| Volume Number | 10 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2020-06-22 |
| Access Restriction | Open |
| Subject Keyword | Agriculture Agriculture and Animal Production Zilpaterol Hydrochloride Meat Quality Hair Breeds Lamb Performance |
| Content Type | Text |
| Resource Type | Article |
