畜牧兽医学报 ›› 2015, Vol. 46 ›› Issue (9): 1557-1563.doi: 10.11843/j.issn.0366-6964.2015.09.010

• 动物营养 • 上一篇    下一篇

胍基乙酸和甜菜碱对育肥猪肌肉能量代谢和肉品质的影响

刘洋,李蛟龙,张林,高峰*,周光宏   

  1. (南京农业大学动物科技学院/江苏省动物源食品生产与安全保障重点实验室,南京 210095)
  • 收稿日期:2014-11-24 出版日期:2015-09-23 发布日期:2015-09-22
  • 通讯作者: 高峰,教授,博士,主要从事动物营养与畜产品品质研究,E-mail:gaofeng0629@sina.com
  • 作者简介:刘洋(1988-),女,河北乐亭人,硕士生,主要从事动物营养与畜产品品质研究,E-mail:2012105043@njau.edu.cn
  • 基金资助:

    “十二五”国家科技支撑计划课题(2012BAD28B03);中央高校科研基本业务费自主创新项目(KYZ201222);江苏省农业三新工程项目(SX(2011)146)

Effects of Dietary Supplementation of Guanidinoacetic Acid and Combination of Guanidinoacetic Acid and Betaine on Muscle Energy Metabolism,Meat Quality in Finishing Pigs

LIU Yang,LI Jiao-long,ZHANG Lin,GAO Feng*,ZHOU Guang-hong   

  1. (Key Laboratory of Animal Origin Food Production and Safety Guarantee of Jiangsu Province/ College of Animal Science and Technology,Nanjing Agricultural University,Nanjing 210095,China)
  • Received:2014-11-24 Online:2015-09-23 Published:2015-09-22

摘要:

旨在研究日粮中添加胍基乙酸及联合添加胍基乙酸和甜菜碱对育肥猪肌肉能量代谢和肉品质的影响。试验选用杜长大三元杂交阉割公猪180头,随机分为3组:对照组,饲喂基础日粮;胍基乙酸组,饲喂基础日粮+1 g•kg-1胍基乙酸;胍基乙酸+甜菜碱组,饲喂基础日粮+1 g•kg-1胍基乙酸+0.5 g•kg-1甜菜碱,每组3个重复(圈),每个重复20头猪。试验期为15 d。结果表明:日粮中添加胍基乙酸及胍基乙酸+甜菜碱能显著降低猪肉的滴水损失(P<0.01)、硬度、蒸煮损失和剪切力值(P<0.05),并提高pH45 min(P<0.05)、pH24 h(P<0.01),肌酸含量(P<0.05)、磷酸肌酸含量(P<0.01)和ATP含量(P<0.001)。结果表明:饲料中添加胍基乙酸及联合添加胍基乙酸和甜菜碱能通过调节育肥猪能量代谢改善肉品质。

关键词: 胍基乙酸, 甜菜碱, 猪, 能量代谢, 肉品质

Abstract:

This study aimed to evaluate the effects of guanidinoacetic acid(GAA) and combination of GAA and betaine on muscle energy metabolism and meat quality in finishing pigs.A total of 180 cross castrated male pigs(Duroc×Landrace×White) were randomly assigned to 3 experimental diet groups:control(CON,basal diet),GAA group(GAA;basal diet supplemented with 1 g of GAA per kg of feed),combination group(CGB;basal diet supplemented with 1 g of GAA and 0.5 g of betaine per kg of feed).Each treatment was replicated in 3 pens with 20 pigs each.The experimental period lasted 15 d.Compared with the control group,GAA and CGB supplementation significantly reduced drip loss(P<0.01),hardness,cooking loss and shear force(P<0.05),increased pH45 min (P<0.05),pH24 h (P<0.01).In addition,dietary GAA and CGB increased the contents of creatine(P<0.05),phosphocreatine(P<0.01) and adenosine triphosphate(ATP)(P<0.001) in muscle.The results indicated that the dietary supplementation with GAA and CGB could improve meat quality via regulating muscle energy metabolism of finishing pigs.

Key words: guanidinoacetic acid, betaine, pigs, energy metabolism, meat quality

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