Meat Science ( IF 7.1 ) Pub Date : 2018-09-04 , DOI: 10.1016/j.meatsci.2018.08.027 E.N. Ponnampalam , M.G. Kerr , K.L. Butler , J.J. Cottrell , F.R. Dunshea , J.L. Jacobs
This study investigated the use of camelina forage and meal supplementation to a finishing diet on carcass traits, composition and retail value of lamb and hoggets. The metabolisable energy and crude protein concentrations of all 3 diets were 10–11 MJ/kg DM and 14–15% CP. Thirty maternal Composite wether lambs (28–38 kg) and 30 Merino wether hoggets (37–43 kg) were used in a 3 × 2 factorial experiment. Animals were slaughtered after 10 weeks of feeding with carcasses classified as ‘Heavy lamb’ or ‘Heavy hogget’ (>22 kg carcass weight). Carcass traits, composition, meat mineral concentrations and retail colour were measured. Camelina diets increased liveweight (P < 0.02) and carcass weight (P < 0.002) for both sheep types. Carcass weight (P < 0.005) and dressing % (P < 0.01) were lower for Merino hoggets than Composite lambs. Mineral concentration and retail colour stability of fresh meat were unaffected by diet, with 72 h retail colour considered acceptable for consumers.
中文翻译:
填补羊肉和生猪生产的过时空白:饮食和遗传对car体产量,car体组成和肉类零售价值的影响
这项研究调查了使用山茶花饲料和膳食补充剂来完成finishing体特性,羔羊和养猪场的组成和零售价值的最终饮食。所有三种饮食的代谢能和粗蛋白浓度均为10-11 MJ / kg DM和14-15%CP。在3×2析因实验中,使用了30只产妇综合性羔羊(28–38 kg)和30头美利奴绵羊裔猪(37–43 kg)。喂食10周后屠宰动物,将其屠体分类为“重羊肉”或“重肉猪”(>体重量> 22公斤)。测量体的性状,组成,肉类矿物质浓度和零售颜色。两种绵羊的驼峰饮食均增加了活重(P <0.02)和car体重量(P <0.002)。美利奴猪的(体重量(P <0.005)和敷料%(P <0.01)比复合羔羊低。