Effect of inclusion of alfalfa hay in the diet and gender on carcass and meat characteristics of Katahdin × Pelibuey lambs

Autor: Jose G. Canton-Castillo, Yolanda Moguel-Ordoñez, Alberto Alcaraz-Romero, Benjamin Piña-Cardenas, David Betancur-Ancona
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Journal of Applied Animal Research, Vol 50, Iss 1, Pp 702-707 (2022)
Druh dokumentu: article
ISSN: 09712119
0974-1844
0971-2119
DOI: 10.1080/09712119.2022.2147184
Popis: ABSTRACTDietary alfalfa hay could improve carcass and meat characteristics of lambs, however, information on hair breeds according to consumer demands is incomplete. This study aimed to evaluate the effect of dietary alfalfa hay and gender on carcass characteristics and physico-chemical properties of Katahdin × Pelibuey lmabs (F1). Thirty-six male and twenty-four female lambs were distributed in a completely randomized design with a 2 × 2 factorial arrangement: two diets, with or without alfalfa hay (AH) and two genders (male and female). Dry matter Intake (DMI) of male lambs was higher than females (1.360 vs 1.267 kg/d), daily weight gain (DWG) (0.262 vs 0.212 g), live slaughter weight (40.2 vs 37.8 kg), hot carcass weight (HCW) (20.0 vs 18.8 kg), temperature (9.57 vs 5.98°C) and highest pentadecanoic (1.42 vs 0.74%), linoleic (4.86 vs 3.04%) and tricosanoic acid content (2.43 vs 1.26%) in Longissimus lumborurm muscle (LLM). The meat pH ranged from 5.1 to 6.0. Protein and lipid average values were 19.2 and 5.1%, respectively. Lambs fed alfalfa diet had similar physicochemical characteristics than those fed concentrate feed, indicating the possibility of producing lamb meat using alfalfa. Meat of male lambs had the highest linoleic acid content, which provides positive health benefits to the consumers.
Databáze: Directory of Open Access Journals
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