Influence of rearing system on the productive, carcass and meat quality attributes among three genotypes of native lambs in Bangladesh

The aim of this study was to evaluate the productive performance, carcass traits and meat quality native lambs Bangladesh under two rearing system. Total 30 animals were taken for productive, attributes evaluation from three regions (Jamuna Basin, Barind Region Coastal Belt); total 18 considered evaluating parameters treatment groups (T1= Grazing, T2= Stall Feeding) each regions. Statistical analysis conducted by SAS where statistical model 3*2 factorial experimental in CRD. DMRT mean comparison 5% level significance analyses. Both genotype system had significant effect (p<0.05) on body weight at different systems. Among all genotypes grazing highest than stall feeding CBL shows higher compared JBL BRL. ADG found significantly (p<0.01) lambs. Dressing % (46.80) Genotype blood, head, shoulder, loin wt.% except skin, viscera, leg, pluck, Neck, rack, shank only but non-significant (p>0.05). heart, spleen weight%. CP%, EE% Ash% whereas DM feeding. DL, Ultimate pH, cooked pH WHC% CL% Grazing showed tenderness, juiciness overall acceptability color flavor. Instrumental values L*, a*, b* saturation index Superiority over BRL terms largely varied It may be concluded that group positive effects traits, proximate components, physicochemical, sensory instrumental performs better