茶多酚对肉鸡生长性能和肉品质的影响
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安徽省高校自然科学研究重点项目(KJ2020A0967)?安徽省高校人文社科重点项目(SK2019A0913)?


Effects of Tea Polyphenols on Growth Performance and Meat Quality of Broilers
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    为研究茶多酚对肉鸡生长性能、屠宰性能和肉品质的影响ꎬ选取 1 日龄 817 肉鸡 200 只ꎬ随机分为 5 组ꎬ每组 40 只ꎬ对 照组饲喂基础日粮ꎬ试验Ⅰ、Ⅱ、Ⅲ、Ⅳ组在基础日粮中分别添加 200、400、600 和 800 mg / kg 的茶多酚ꎬ试验期 49 dꎮ 结果显 示:(1)1~ 21 日龄ꎬ与对照组相比ꎬⅡ、Ⅲ组肉鸡平均日增重显著升高ꎬⅡ组料重比显著降低(P<0.05)ꎻ22 ~ 49 日龄ꎬ与对照组 相比ꎬ差异无统计学意义(P>0.05)ꎻ(2)与对照组相比ꎬⅡ组半净膛率显著提高(P<0.05)ꎻ(3)与对照组相比ꎬ试验组肉鸡宰后 24 h 胸肌 pH 和 a∗ 值显著提高ꎬ剪切力显著降低(P<0.05)ꎮ 由此可见ꎬ饲粮中添加茶多酚可提高肉鸡生长性能ꎬ改善屠宰性 能ꎬ提升肌肉品质ꎬ其中 0.04%的添加量效果最佳ꎮ

    Abstract:

    In order to study the effects of tea polyhenols on growth performanceꎬ slaughter performance and meat quality of broilersꎬ 200 one-day old 817 broilers were divided into five groups randomlyꎬ and the broilers in control group were fed with the basal dietꎬ while those in the Ⅰꎬ Ⅱꎬ Ⅲꎬ Ⅳ experimental groups were fed the basal diet supplemented with 200ꎬ 400ꎬ600 and 800 mg / kg tea polyphenols respectively for 49 days. The results show as follows: 1) From 1 day to 21 dayꎬ compared with the control groupꎬ the daily gain of Ⅱ and Ⅲ groups significantly increasedꎬ and the feed to weight ratio of Ⅱ group significantly decreased(P<0.05). From 22 day to 49 dayꎬ compared with the control groupꎬ the experi ̄ mental groups had no significantly differences (P>0.05). (2) Compared with the control groupꎬ the half-eviscerated ratio significantly increased (P<0.05). (3) Compared with the control groupꎬ after 24 hour of slaughterꎬ the value of pH and a∗ of pectoralis significantly increasedꎬ and the shearing force significantly decreased(P<0.05). In conclusionꎬ the basal diet supplement with tea polyphenols can increase the growth performanceꎬ improve slaughter performance and meat quality of broilers. The best adding mount of tea polyphenols is 0.04%.

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蒋 磊1 ꎬ陈 杰2.茶多酚对肉鸡生长性能和肉品质的影响[J].西昌学院学报(自然科学版),2021,35(2):39-42.

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  • 在线发布日期: 2021-07-27