title: Comparison of breast muscle meat quality in 2 broiler breeds.
abstract: On the basis of meat quality traits, muscle fiber characteristics, and nutrient components and contents in chickens at market age, 120-d-old Beijing-you (BJY) chickens (the Chinese local breed) had distinct breast muscle features when compared with 42-d-old Arbor Acres (AA) chickens (the genetically improved broiler line). The phospholipid (P < 0.05) and essential fatty acid (P < 0.05) contents in BJY chickens were significantly higher than those in AA chickens. No differences (P > 0.05) were found between the breeds in the contents of polyunsaturated fatty acids, unsaturated fatty acids, protein, or amino acids. Breast muscle fiber diameter was significantly smaller (~55.76%) and fiber density was higher (~174.86%) in BJY chickens than in AA chickens (P < 0.05). In this study, breast muscle from 120-d-old BJY chickens was judged to have better quality of phospholipids and essential fatty acid contents and muscle fiber characteristics than breast muscle from 42-d-old AA chickens.
authors.affiliation: Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China.
authors.forename: G P
authors.initials: GP
authors.lastname: Zhao
authors.forename: H X
authors.initials: HX
authors.lastname: Cui
authors.forename: R R
authors.initials: RR
authors.lastname: Liu
authors.forename: M Q
authors.initials: MQ
authors.lastname: Zheng
authors.forename: J L
authors.initials: JL
authors.lastname: Chen
authors.forename: J
authors.initials: J
authors.lastname: Wen
mesh_terms: D000596:Amino Acids / Q000032:analysis; D000818:Animals; D002645:Chickens; D005231:Fatty Acids, Unsaturated / Q000032:analysis; D005260:Female; D008460:Meat / Q000032:analysis*; D018485:Muscle Fibers, Skeletal / Q000166:cytology; D009124:Muscle Proteins / Q000032:analysis; D018482:Muscle, Skeletal / Q000737:chemistry*; D011786:Quality Control; D013045:Species Specificity
chemical_list: D000596:Amino Acids; D005231:Fatty Acids, Unsaturated; D009124:Muscle Proteins