Effect of dietary histidine on contents of carnosine and anserine in muscles of broilers
Effect of dietary histidine on contents of carnosine and anserine in muscles of broilers
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DOI：
10.1111/asj.12322
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发表时间：
2015-05-01
影响因子：
2
通讯作者：
Fujimura, Shinobu
中科院分区：
文献类型：
--
作者：
Kai, Shinichi;Watanabe, Genya;Fujimura, Shinobu
肌肽（-丙氨酰-L-组氨酸）和鹅丝氨酸（-丙氨酰-1-甲基-L-组氨酸）是主要存在于许多脊椎动物的骨骼肌和脑中的二肽，在鸡胸肌中观察到特别高的浓度。据报道，这些肽具有多种功能，如抗氧化活性。研究了不同水平组氨酸对肉仔鸡肌肉肌肽和鹅肌肽含量的影响。根据NRC（1994），向14日龄雌性Chunky品系肉鸡饲喂含有三种不同组氨酸水平的饲料：67%（低组氨酸）、100%（对照）和200%（高组氨酸）组氨酸需求量。用试验日粮饲喂雏鸡10天。肌肉中的两种二肽均显着减少。特别地，在低His组中根本没有检测到肌肽，而在高His组中显著增加。两种二肽在血浆中均未检出。这些结果表明，通过高组氨酸饲养生产这些二肽含量增加的鸡肉的可能性。
Carnosine (-alanyl-L-histidine) and anserine (-alanyl-1-methyl-L-histidine) are dipeptides mainly found in skeletal muscle and brain of many vertebrates, and particularly high concentrations are observed in chicken pectoral muscles. It was reported that these peptides have many functions, such as antioxidant activity. In this study, we examined the effect of different levels of dietary histidine on carnosine and anserine contents in broiler muscles. The 14-days-old female Chunky strain broilers were given feeds containing three different levels of histidine; 67% (Low-His), 100% (Control) and 200% (High-His) of histidine requirement according to the NRC (1994). Chicks were fed experimental diets for 10 days. Both dipeptides in muscle were significantly decreased. In particular, carnosine was not detected at all in the Low-His group and was significantly increased in the High-His group. Both dipeptides were not detected in plasma. These results indicated the possibility to produce chicken meat with enhanced amount of these dipeptides by high histidine feeding.