Łukasiewicz Monika, Puppel Kamila, Kuczyńska Beata, Kamaszewski Maciej, Niemiec Jan
Department of Poultry Breeding, Faculty of Animal Science, Warsaw University of Life Sciences, Warsaw, Poland.
Department of Cattle Breeding, Faculty of Animal Science, Warsaw University of Life Sciences, Warsaw, Poland.
J Sci Food Agric. 2015 Sep;95(12):2562-5. doi: 10.1002/jsfa.6970. Epub 2014 Nov 24.
The aim of this study was to determine the effect of various doses of β-alanine administered in feed mixtures and of heat treatment on changes in the contents of dipeptides anserine and carnosine in meat of fast-growing Hubbard Flex chickens.
The study demonstrated a significant effect of dietary administration of β-alanine on anserine content in breast muscles and on carnosine content in leg muscles of the chickens. A successive increase in dipeptide content was observed with increasing β-alanine content in the feed mixture. As a result of heat treatment, a significant (P ≤ 0.01) increase was observed in the anserine content of both breast and leg muscles: over twofold higher anserine content was detected in heat-treated muscles compared with raw muscles. The study showed that interesting effects might occur during β-alanine administration to feed mixtures for chickens, especially including increased contents of anserine and carnosine in skeletal muscles of the birds.
Taking into account the well-documented health-promoting effect of histidine dipeptides and possibilities of increasing their contents in the body by supplementation with β-alanine, anserine and carnosine might be considered as potential components of functional foods.
本研究的目的是确定在饲料混合物中添加不同剂量的β-丙氨酸以及热处理对快速生长的哈伯德弗莱克斯鸡肌肉中二肽鹅肌肽和肌肽含量变化的影响。
该研究表明，在鸡的日粮中添加β-丙氨酸对鸡胸肌中鹅肌肽含量和鸡腿肌中肌肽含量有显著影响。随着饲料混合物中β-丙氨酸含量的增加，二肽含量持续上升。热处理后，鸡胸肌和鸡腿肌中的鹅肌肽含量均显著增加（P≤0.01）：热处理后的肌肉中鹅肌肽含量比生肉高出两倍多。研究表明，在鸡的饲料混合物中添加β-丙氨酸可能会产生有趣的效果，特别是鸡骨骼肌中鹅肌肽和肌肽含量的增加。
鉴于组氨酸二肽具有充分记录的促进健康的作用，以及通过补充β-丙氨酸增加其体内含量的可能性，鹅肌肽和肌肽可被视为功能性食品的潜在成分。
