Effect of genetic background, pen size and outdoor access on meat quality in two slow growing broiler hybrids

The aim was to evaluate the effect of two different rearing systems, indoor small pens (S) and big with outdoor access (B), on meat quality fatty acid (FA) composition slow growing broiler hybrids (Rowan Ranger [RR] Hubbard CYJA57 [H]). In addition, changes in phospholipid FA composition, due possibility more movement, were investigated. results regarding exclusively influenced by genotype, where RR chickens had higher breast weight, Warner-Bratzler shear force pH than H chickens. Differences lipid found both hybrid system. birds slightly leaner had, therefore, proportions phospholipids. Rearing a pen resulted lower concentrations 16:0 total n-3 n-6 acids individual long chain polyunsaturated FA.