Related Experiment Video
Updated: Aug 16, 2026
Exploring the Longissimus Muscle: Unraveling its Correlation with Meat Quality in Bos indicus and Crossbred Bulls
Published on: July 12, 2024
A comparative analysis of growth performance, carcass and meat traits between Dumont and Mongolian lambs under
Ran Zhang1, Meila Na1, Wenliang Guo1
1College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China.
Abstract:
This study compared growth, carcass traits, and meat nutritional characteristics of Dumont and Mongolian lambs fed alfalfa hay (AH) or corn stalk (CS) in a completely randomized 2 × 2 factorial design (n = 24). AH increased average daily feed intake and gain. Because initial body weight differed between breeds, body weight on day 90 (BW90), live weight before slaughter (LWBS), and carcass weight were analyzed by ANCOVA. After adjustment, breed and roughage source affected BW90 and LWBS, while carcass weight showed a significant breed × roughage interaction, with a greater AH-CS difference in Dumont lambs. After Benjamini-Hochberg correction, AH increased C18:3n3 and total n-3 PUFA concentrations and reduced the n-6/n-3 PUFA ratio in longissimus dorsi muscle. Amino acid differences were mostly exploratory. Overall, roughage source mainly affected growth, carcass traits, and selected n-3 characteristics, whereas breed influenced feed intake, adjusted body size, carcass weight, and meat redness.
