饲粮添加脯氨酸对妊娠环江香猪体成分的影响

张婷, 查伟, 唐子龙, 孔祥峰

doi:10.3969/j.issn.1006-267x.2017.02.023

动物营养学报 >

2017 , Vol. 29 >Issue 2: 556 - 561

DOI: https://doi.org/10.3969/j.issn.1006-267x.2017.02.023

研究简报 Short communications

饲粮添加脯氨酸对妊娠环江香猪体成分的影响

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1. 中国科学院亚热带农业生态研究所, 亚热带农业生态过程重点实验室, 湖南省畜禽健康养殖工程技术研究中心, 农业部中南动物营养与饲料科学观测实验站, 长沙 410125;
2. 中国科学院环江喀斯特农业生态实验站, 香猪研究中心, 环江 547100

张婷(1987-),女,湖南浏阳人,助理研究员,硕士,研究方向为猪氨基酸营养。E-mail:zting729@163.com

收稿日期: 2016-08-01

网络出版日期: 2017-02-17

基金资助

国家自然科学基金项目（31270044，31572421）；中科院“西部之光”人才培养计划重点项目

收起

Effects of Dietary Proline on Body Composition in Pregnant Huanjiang Mini-Pigs

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1. Key Laboratory for Agro-Ecological Processes in Subtropical Region, Hunan Provincial Engineering Research Center for Healthy Livestock, Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China;
2. Research Center of Mini-Pig, Huanjiang Observation and Research Station for Karst Ecosystems, Chinese Academy of Sciences, Huanjiang 547100, China

Received date: 2016-08-01

Online published: 2017-02-17

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摘要

本试验旨在研究饲粮添加脯氨酸对妊娠环江香猪体成分的影响。选取32头妊娠15 d的环江香猪，随机分为2组，每组8个重复，每个重复2头猪。2组试验猪分别饲喂在基础饲粮中添加0.77%L-丙氨酸（等氮对照组）和1.00%L-脯氨酸（脯氨酸组）的饲粮。分别于妊娠第45和70天时，每个重复选择1头母猪屠宰，测定其体成分。结果表明：与等氮对照组相比，妊娠第45天时脯氨酸组环江香猪的脂肪率显著降低（P<0.05），皮肤率呈增加趋势（0.05≤P < 0.10）；妊娠第70天时脯氨酸组的脂肪率显著增加（P<0.05），皮肤率呈降低趋势（0.05≤P < 0.10），背最长肌中脯氨酸的含量显著增加（P<0.05），精氨酸和丙氨酸的含量呈增加趋势（0.05≤P < 0.10）。与妊娠第45天时相比，妊娠第70天时脯氨酸组的脂肪率显著增加（P<0.05），瘦肉率与皮肤率显著降低（P<0.05）。由此可见，饲粮添加脯氨酸可增加妊娠环江香猪机体脂肪和精氨酸的沉积量，妊娠中期的机体脂肪沉积量比妊娠前期有所增加，从而有利于胎儿的生长发育。

关键词： 脯氨酸; 妊娠; 环江香猪; 体成分; 氨基酸组成

本文引用格式

张婷, 查伟, 唐子龙, 孔祥峰 . 饲粮添加脯氨酸对妊娠环江香猪体成分的影响[J]. 动物营养学报, 2017 , 29(2) : 556 -561 . DOI: 10.3969/j.issn.1006-267x.2017.02.023

Abstract

This study was conducted to investigate the effects of dietary proline on body composition in pregnant Huanjiang mini-pigs. Thirty-two pregnant Huanjiang mini-pigs on day 15 of pregnancy were randomly assigned into two groups with eight replicates per group and two pigs per replicate. The pigs were fed the basal diet supplemented with 0.77% L-alanine (isonitrogenous control group) and 1.00% L-proline (proline group), respectively. On days 45 and 70 of pregnancy, one sow per replicate was sacrificed to analyze the body composition, respectively. The results showed that compared with the isonitrogenous control group, the fat percentage of Huanjiang mini-pigs was significantly decreased (P<0.05) and the skin percentage had an increasing trend (0.05≤P < 0.10) in proline group on day 45 of pregnancy; the fat percentage was significantly increased (P<0.05), the skin percentage had a decreasing trend (0.05≤P < 0.10), and the content of proline was significantly increased (P<0.05) and the contents of arginine and alanine had an increasing trend (0.05≤P < 0.10) of longissimus dorsi muscle in proline group on day 70 of pregnancy. The fat percentage was significantly increased and the lean meat percentage and skin percentage were significantly decreased in proline group on day 70 of pregnancy compared with those on day 45 of pregnancy (P<0.05). These findings suggest that dietary proline can increase the deposition of body fat and arginine in pregnant Huanjiang mini-pigs, and the body fat deposition in mid pregnancy is higher than that in early pregnancy, thus it is beneficial to the growth and development of fetuses.

Key words： proline; pregnancy; Huanjiang mini-pigs; body composition; amino acid composition

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