Journal Article
Effect of replacing soybean meal (Glycine max) with sesame meal (Sesamum indicum) on productive traits, carcass characteristics, and gross profit margin in fattening lamb’s diets
Eleazar Pérez-Trejo; Héctor M. Andrade-Montemayor; Lizbeth E. Robles-Jimenez; María Concepción Méndez Gómez Humarán; Elba Orozco-Estrada; Jesús Hernández-Hernandez; Einar Vargas-Bello-Pérez; Manuel Gonzalez-Ronquillo
Tropical Animal Health and Production · Vol. 54, Issue 6 · 2022
Abstract
The objective of this study was to determine the effect of replacing soybean meal ( Glycine max ) with sesame meal ( Sesamum indicum ) on productive traits, carcass characteristics, and gross profit margin (GMP) in fattening lamb’s diets. For this, 42 Katahdin lambs were divided into three treatments in duplicate: basal diet + soybean meal (100S), basal diet + sesame meal/soybean meal (50/50SA), and basal diet + sesame meal (100A). Dry matter intake, daily weight gain (DWG), total kg gained (KgT), feed conversion (FC), and feed efficiency (FE) were evaluated; upon reaching the weight for sale, the animals were slaughtered, and hot carcass weight (HCW) was evaluated. The results were analyzed with a completely randomized design with repeated measures. Regarding time, no differences were found between treatments, for DWG (0.171 ± 0.006 kg/d), FC (6.7 ± 0.55), FE (0.175 ± 0.02), KgT (2.86 ± 0.13 kg), HCW (50.97 ± 0.79 kg), as well as for chest depth (26.96 ± 0.33 cm), leg width (20.63 ± 0.028 cm), leg diameter (60.7 ± 0.44 cm), and ribs width (24.05 ± 0.14 cm). GPM was 16.50%, 18.63%, and 19.97% for 100S, 50/50SA, and 100A, respectively. Overall, in fatting lamb diets, replacing soybean meal with sesame meal by either 50% or 100% substitution could be a feasible feeding strategy as in both cases, gross profit was increased, and no negative effects were found for productive traits and carcass quality.