Effect of Genotype and Sex on Chemical Composition, Physicochemical Properties, Texture and Microstructure of Spent Broiler Breeder Meat

The aim of this research is to compare the carcass composition and meat quality characteristics spent Cobb 500 Ross 308 broiler breeders. A total 28 carcasses were evaluated—7 female 7 male from each genotype. Dissection was performed, percentages neck, wings, skin with subcutaneous fat, abdominal residual components, breast leg muscles calculated relative eviscerated weight. evaluated for their chemical composition, color attributes (Lab), acidity (pH24), electrical conductivity (EC24). Analysis structure texture pectoralis major muscle performed. genotype birds had an impact on weight, percentage muscles, neck. Broiler breeder genotypes differed in terms except water content collagen both muscles. exhibited lower cooking loss, pH24, redness, yellowness, while EC24 but higher loss lightness values. firmer more tender, a smaller cross-sectional area fiber vertical (V) diameter fiber. Males characterized by greater weight remains. On other hand, females fat. sex affected exception values although they also pH loss. In analysis muscle, tenderness firmness. However, showed that males thicker perimysium endomysium. Regardless origin sex, significant differences found between assessed physicochemical features (pH24, EC24, loss), (Lab) (protein, intramuscular contents). Genotype interactions collagen) (fat), as well yellow saturation springiness muscle. study produced results hens roosters be suitable processing due favorable high nutritional value good technological properties, based structure.