The effects of adding waste sesame seeds to diets on performance, carcass characteristics, and meat fatty acid composition of Karayaka lambs

Abstract

This study aims to determine the effects of the inclusion of waste sesame seed (WSS) to concentrate feed on performance, carcass characteristics, and meat fatty acid profile of Karayaka lambs. A total of twenty-three lambs were randomly allocated to a control group (11 lambs, with an average live weight of 23.39±0.58 kg) and an experimental group (12 lambs, with an average live weight 23.55±0.41 kg). Also, each of the group was divided into two subgroups according to their gender. The lambs were fed with isonitrogenous (17% CP) and isocaloric (2650 kcal/kg ME) concentrate feeds containing either 0% WSS (control) or 10% WSS (experimental) for 60 days. Final live weight, average daily weight gain (ADG), feed conversion ratio (FCR), and carcass traits were not affected by diet, although they were higher in males than females (P<0.01). In addition, males presented a higher percentage of C17:1, C18:2 n6, C20:3 n6 (P<0.01), and polyunsaturated fatty acid (P<0.05) than females. In conclusion, the addition of WSS to the lamb diet did not increase the concentration of unsaturated fatty acids in meat. However, WSS can be included up to 10% in concentrate feed of lambs during fattening period without negative effects on performance and carcass yield.

Influence of Sex on Growth Performance, Carcass Attributes, Meat Quality, and Blood Metabolites of Awassi Lambs

“…Likewise, our findings were similar to work conducted by de Araújo et al (12) who reported heavier hot and cold carcass weights in intact and castrated Morada Nova lamb males than females. In contrast, Klupsaite et al (28), Sabbioni et al (41) and Kaya et al (26) reported similar hot and cold carcass weights between sexes in lambs. However, Sadeghi et al (42) observed a significant greater hot carcass weight in males than female with comparable cold carcass weights and dressing percent.…”

Alternative Approaches to Feeding Small Ruminants and Their Potential Benefits

“…Drawing a connection to this composition, the incorporation of sesame hulls in lamb diets (100 and 200 g/kg feed, respectively) improved the final weight and carcass characteristics, but led to similar meat oxidative stability and fatty acid profiles [ 144 ]. However, in another study, the effects of using sesame seed waste did not affect the growth performances nor the carcass characteristics of Karayaka lambs [ 145 ].…”