摘要
传统上认为母乳能提供足量的氨基酸保证仔猪生长的生长需要,但当母乳是唯一的蛋白质来源时,哺乳仔猪的生长性能不能达到最佳。估计在7日龄的哺乳仔猪中,猪乳提供的精氨酸≤40%的每天需要量。精氨酸是哺乳仔猪的必需氨基酸,有提高仔畜生长的巨大的潜能;它在氨通过肝尿素循环降解中起重要作用,是NO合成的生理物质,因此有必要进一步阐明在母猪哺育的仔猪中缺乏精氨酸的机制,促进新生仔猪的精氨酸营养和生长。
Although sow's milk traditionally thought to provide adequate amino acids for supporting piglet's growth,recent studies have identified that maximal growth performance of suckling piglets is not achieved when sow's milk is the only source pf dietary protein.We have estimated that sow's milk provides≤40%of the daily arginine requirement in7-d-old suckling piglets.arginine is an essential amino acid for piglets and has a great potential to enhance neonatal growth;and arginine plays a crucial role in ammonia detoxification via the hepatic urea cycle and is the physiological substrate for nitric oxide synthesis,therefore,further studies are necessary to elucidate the mechanism responsible for arginine deficiency in sow-reared piglets and improving neonatal arginine nutrition and growth.
出处
《畜禽业》
2004年第5期17-18,共2页
Livestock and Poultry Industry
关键词
猪乳
精氨酸
仔猪生长
生长性能
Arginine Ammonia Nitric Oxide Amino Acids Suckling piglets
