特种经济动物营养 Special economic animal nutrition

枸杞多糖对生长獭兔屠宰性能、免疫器官发育及肉质性状的影响

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  • 1. 河北农业大学山区研究所, 保定 071001;
    2. 河北省山区农业工程技术研究中心, 保定 071001;
    3. 河北农业大学动物科技学院, 保定 071001
刘亚娟(1982-),女,河北保定人,副研究员,硕士,主要从事动物营养与饲料研究。E-mail:lyj8258@126.com

收稿日期: 2017-08-07

  网络出版日期: 2018-02-02

基金资助

国家兔产业技术体系(CARS-44-B-3);河北省高等学校科学技术研究项目(QN2015087)

Effects of Lycium barbarum Polysaccharides on Slaughter Performance, Immune Organ Development and Meat Quality Traits of Growing Rex Rabbits

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  • 1. Mountainous Area Research Institute of Hebei Province, Baoding 071001, China;
    2. Mountain Area of Hebei Province Agricultural Engineering Technology Research Center, Baoding 071001, China;
    3. College of Animal Science and Technology, Agricultural University of Hebei, Baoding 071001, China

Received date: 2017-08-07

  Online published: 2018-02-02

摘要

本试验旨在研究枸杞多糖对生长獭兔屠宰性能、免疫器官发育及肉质性状的影响。试验选择40日龄獭兔80只(公母各占1/2),随机分为4组(每组20个重复,每个重复1只),对照组饲喂基础饲粮,试验组分别在基础饲粮基础上添加0.1%、0.2%、0.3%的枸杞多糖。预试期5 d,正试期30 d。结果表明:1)与对照组相比,试验组半净膛率和全净膛率均有所提高,但差异不显著(P>0.05)。2)脾脏指数随枸杞多糖添加水平的增加呈上升趋势,以0.3%组最高,胸腺指数以0.2%组最高,但各组间差异均不显著(P>0.05)。3)与对照组相比,试验组肌肉滴水损失率、蒸煮损失率、剪切力和亮度(L*)值略有降低,宰后45 min和宰后24 h的pH略有上升,但差异均不显著(P>0.05);与对照组相比,0.1%、0.2%、0.3%组肌肉红度(a*)值分别提高1.85%、5.86%、10.80%(P>0.05),黄度(b*)值分别降低10.79%、7.39%、11.93%(P>0.05)。综合分析认为,饲粮中添加枸杞多糖对生长獭兔的屠宰性能无显著影响,但能在一定程度上提高免疫器官指数,改善其肉质性状,推荐添加量为0.3%。

本文引用格式

刘亚娟, 陈赛娟, 陈宝江, 李宇敏, 谷子林 . 枸杞多糖对生长獭兔屠宰性能、免疫器官发育及肉质性状的影响[J]. 动物营养学报, 2018 , 30(2) : 635 -640 . DOI: 10.3969/j.issn.1006-267x.2018.02.028

Abstract

This experiment was conducted to investigate the effects of Lycium barbarum polysaccharides (LBP) on slaughter performance, immune organ development and meat quality traits of growing Rex rabbits. Eighty 40-day-old Rex rabbits (half male and half female) were randomly allocated into 4 groups (each group had 20 replicates and each replicate had 1 rabbit). The rabbits in control group were fed a basal diet, while the rabbits in experimental groups were fed the basal diet supplemented with 0.1%, 0.2% and 0.3% LBP, respectively. The pre-feeding period lasted for 5 d followed by an experimental period of 30 d. The results showed as follows:1) compared with the control group, the half eviscerated rate and all eviscerated rate of experimental groups had improved, but the differences were not significant (P>0.05). 2) The spleen index was increased with the increase of LBP supplemental level, and the highest value of spleen index was found in the 0.3% group and the highest value of thymus index was found in the 0.2% group, but no significant differences in them were found among all groups (P>0.05). 3) Compared with the control group, the drip loss rate, cooking loss rate, shear force and brightness (L*) value of muscle of experimental groups were decreased slightly, and the pH of 45 min and pH of 24 h after slaughter were increased slightly, but the differences were not significant (P>0.05). Compared with the control group, the redness (a*) value of muscle of 0.1%, 0.2% and 0.3% groups were increased by 1.85%, 5.86% and 10.80% (P>0.05), respectively, and the yellowness (b*) value of muscle of 0.1%, 0.2% and 0.3% groups were decreased by 10.79%, 7.39% and 11.93% (P>0.05), respectively. The results indicate that diet supplemented with LBP has no significant effect on the slaughter performance of growing Rex rabbits, which can improve the immune organ indexes and improve the meat quality traits at a certain extent, and the recommend supplemental level is 0.3%.

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