畜牧兽医学报 ›› 2009, Vol. 40 ›› Issue (12): 1755-1760.

• 动物营养 • 上一篇    下一篇

亚麻油对育肥猪肉品质及脂肪组织脂肪酸组成的影响

蔡传江1, 2 ,车向荣1,赵克斌2*,王立贤2,颜华2,程笃学2,武晶1,2   

  1. 1. 山西农业大学动物科技学院 动物营养实验室,太谷 030801;2. 中国农业科学院北京畜牧兽医研究所,北京 100193
  • 收稿日期:2009-01-08 修回日期:1900-01-01 出版日期:2009-12-24 发布日期:2009-12-24
  • 通讯作者: 赵克斌

Effects of Linseed Oil on Meat Quality and Fatty Acid Compositon of Adipose Tissue in Finishing Pigs

CAI Chuanjiang 1,2, CHE Xiangrong 1, ZHAO Kebin 2*, WANG Lixian 2 , YAN Hua 2, CHENG Duxue 2, WU Jing 1,2
  

  1. 1.Laboratory of Animal Nutrition, College of Animal Science and Veterinary Medicine,Shanxi Agricultural University, Taigu 030801, China ;2. Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
  • Received:2009-01-08 Revised:1900-01-01 Online:2009-12-24 Published:2009-12-24
  • Contact: ZHAO Kebin

摘要: 本试验旨在研究饲料添加亚麻油(linseed oil, LO)对育肥猪胴体指标、肉质及脂肪组织脂肪酸组成的影响。选用平均体质量为63 kg左右的健康大白猪84头(其中21头阉公猪),按体质量相近、性别比例一致原则随机分为3组,每组设4个重复,每个重复7头猪(1或2头阉公猪)。3个处理日粮为玉米-豆粕型日粮,分别添加0%、15%和3.0% LO,饲养试验时间为50 d。结果显示,与对照组相比,日粮中添加LO对猪胴体和肉品质指标均没有显著影响(P>0.05);日粮中添加LO显著提高皮下脂肪的α亚麻酸(ALA) (P<0.01)、EPA(P<0.01)、DPA(P<005)含量,以及多不饱和脂肪酸(PUFA)(P<0.05)和n3PUFA(P<0.01)总含量, 同时显著降低花生四烯酸(P<0.01)和二十二碳四烯酸(P<0.01)含量,而对n6PUFA总含量无显著影响(P>0.05)。结果表明,猪不但可以直接沉积α亚麻酸,而且能将其进行进一步延长和脱饱和;饲料中添加1.5% LO可将猪皮下脂肪n6n3PUFA比值降至4.11,接近人类健康饮食推荐水平,而日粮中添加3.0% LO则能降低皮下脂肪n6n3PUFA比值至251,大大增加了猪脂肪组织的保健价值。

关键词: 亚麻油, 肉品质, 脂肪酸组成, 肥育猪

Abstract: This experiment was conducted to study the effect of Linseed oil (LO) on meat quality and fatty acids composition of adipose tissue in finishing pigs. Eightyfour Large White pigs(21 barrows), average weight of 63 kg, were randomly assigned into three dietary treatments with four replicates and seven pigs(1 or 2 barrows)with each replicate. The groups received one of the three dietary treatments: 0%, 15% and 3.0% LO, respectively. The feeding trial lasted for 50 days. There was no significant effect of LO added into diets on meat quality and carcass traits(P>0.05);The inclusion of LO in finishing pig diets significantly increased αlinolenic acid (ALA) (P<0.01), EPA(P<0.01) and DPA(P<0.05)levels,and total n3 polyunsaturated fatty acid (PUFA) (P<0.01) concentration, and significantly reduced the levels of C20:4 n6(P<0.01)and C22:4 n6(P<0.01)in adipose tissue, but the total n6 PUFA content was not significantly affected by the diet(P>0.05). These results indicated that pigs could not only deposit αlinolenic acid into adipose tissue, but also elongate and desaturate it; the 1.5% LO diet produced an n6n3PUFA ratio in the subcutaneous fat of 4.11,close to the recommended ratio for the human diet, and the ratio of 2.51 for the 3.0% LO diet, which can significantly improve the health value of adipose tissue.

Key words: linseed oil, meat quality, fatty acids composition, finishing pigs