Acta Agricultuae Scandinavica, Section A - Animal Science ( IF 0.9 ) Pub Date : 2021-01-05 S. Sampels, J. Pickova, S. Gatchell, A. Karlsson, J. Yngvesson, K. Arvidsson Segerkvist
ABSTRACT
The aim was to evaluate the effect of two different rearing systems, indoor small pens (S) and big pens with outdoor access (B), on meat quality and fatty acid (FA) composition of two slow growing broiler hybrids (Rowan Ranger [RR] and Hubbard CYJA57 [H]). In addition, changes in the phospholipid FA composition, due to the possibility of more movement, were investigated. The results regarding meat quality were exclusively influenced by genotype, where RR chickens had higher breast weight, higher Warner-Bratzler shear force and higher pH than H chickens. Differences in lipid composition were found both due to hybrid and to the rearing system. The H birds were slightly leaner and had, therefore, higher proportions of phospholipids. Rearing in a big pen resulted in lower concentrations of 16:0 and higher concentrations of both total n-3 and n-6 fatty acids and of individual long chain polyunsaturated FA.
中文翻译:
遗传背景,围栏大小和室外取食对两种生长缓慢的肉鸡杂交品的肉质的影响
摘要
目的是评估两种不同的饲养系统,室内小型围栏(S)和大型室外围栏(B),对两种生长缓慢的肉鸡杂交品的肉品质和脂肪酸(FA)组成的影响(Rowan Ranger [RR ]和Hubbard CYJA57 [H])。另外,研究了由于更多运动的可能性而导致的磷脂FA组成的变化。关于肉质的结果完全受基因型的影响,RR鸡的胸脯重,Warner-Bratzler剪切力和pH值均高于H鸡。由于混合和饲养系统,发现脂质组成上的差异。H禽类较瘦一些,因此具有较高比例的磷脂。用大钢笔饲养会降低16:的浓度