草地学报

草地学报 ›› 2015, Vol. 23 ›› Issue (6): 1323-1328.DOI: 10.11733/j.issn.1007-0435.2015.06.028

• 技术研发 • 上一篇    下一篇

添加黑麦草饲粮对鹅肉脂肪酸组成的影响

冯德庆1, 黄勤楼2, 黄秀声1, 陈钟佃1, 钟珍梅1   

  1. 1. 福建省农业科学院农业生态研究所 福建省丘陵地区循环农业工程技术研究中心, 福州 福建 350013;
    2. 福建省农业科学院畜牧兽医研究所, 福州 福建 350013
  • 收稿日期:2014-10-23 修回日期:2014-12-21 出版日期:2015-12-15 发布日期:2016-02-01
  • 通讯作者: 黄勤楼
  • 作者简介:冯德庆(1971-),男,福建宁德人,硕士,副研究员,研究方向为畜牧及畜牧生态,E-mail:koala-1011@163.com
  • 基金资助:

    福建省属公益类科研院所基本科研专项(2015121017-2);国家科技支撑计划(2011BAD17B02-06)资助

Effects of Adding Different Amount of Rye Grass on Fatty Acid Compositions in Geese Diets

FENG De-qing1, HUANG Qin-lou2, HUANG Xiu-sheng1, CHEN Zhong-dian1, ZHONG Zhen-mei1   

  1. 1. Agricultural Ecology Institute, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian Province 350013, China;
    2. Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian Province 350013, China
  • Received:2014-10-23 Revised:2014-12-21 Online:2015-12-15 Published:2016-02-01

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摘要：

本研究旨在观察饲粮中添加不同比例多花黑麦草(Lolium multiflorum Lam)对鹅肉脂肪酸组成影响,揭示牧草摄食量与鹅肉α-亚麻酸(ALA)相对含量之间的关系。选用50羽14日龄长乐灰鹅,分成5个处理,饲养期60 d。各处理饲粮中黑麦草干物质比例分别为: 0.00%(CK),5.42%,11.92%,19.52%和27.24%。结果表明:随着饲粮中黑麦草比例的提高,鹅肉ALA相对含量显著增加,试验各组分别比对照组增加了86.90%,197.24%(P<0.05),393.10%(P<0.05)和304.83%(P<0.05);PUFA/SFA显著上升(P<0.05);n-6PUFA/n-3PUFA显著下降(P<0.05)。鹅肉ALA相对含量与饲粮中黑麦草比例的曲线回归模型方程为:y=0.270+0.106x-0.002x2(F=22.99**)。当饲粮中黑麦草的干物质比例在0%～26.50%时,鹅肉ALA的含量呈上升趋势;当黑麦草的比例超过26.50%时,鹅肉ALA的含量转而呈下降趋势。说明黑麦草中的ALA能够通过摄食消化过程沉积到鹅肉中。

关键词: 黑麦草, 鹅, 脂肪酸组成, &alpha, -亚麻酸

Abstract:

This study aims to examine the effects of adding different amounts of rye grass (Lolium multiflorum Lam) to geese diets on the fatty acid compositions of goose meat. A positive correlation between rye grass intake and α-linolenic acid (ALA) contents of goose meat was found (P<0.05). Fifty Changle Grey Geese of 14-day-old were chosen and tested for five different treatments with growing period of 60 days (d). The proportions of DM of rye grass in the geese diets for the different groups were 0.00% (CK), 5.42%, 11.92%, 19.52% and 27.24%, with respect to Group I, II, III and IV. The results showed that the ALA content of the goose meat increased significantly with increasing rye grass proportion in diets. The increases of ALA contents in the goose meat ranged from 86.90% (Group I), 197.24% (Group II), 393.10% (Group III) and 304.83% (Group IV) (P<0.05) compared with the CK Group. Polyunsaturated fatty acids/saturated fatty acids (PUFA/SFA) obviously increased, while n-6 PUFA/n-3 PUFA content decreased (P<0.05). Regression curve between the ALA content of goose meat and the rye grass component of diets was a quadratic equation. The DM components of rye grass in the diets ranged from 0% to 26.50%, ALA content of the goose meat showed increasing tendency. However, ALA content of the goose meat showed decreasing tendency when the rye grass components of the diet exceeded 26.50%. In conclusion, the recommended maximum rye grass component in goose feed diet is 26.50%. These results indicate that the ALA content of rye grass can be incorporated into goose meat by metabolism processes.

Key words: Rye grass (Lolium multiflorum Lam), Goose, Fatty acid composition, α-linolenic acid

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