有机锌源对四川农凤鸡肉中氨基酸和脂肪酸含量的影响

发布时间：2018-05-06 15:42

本文选题：乳酸锌 + 四川农凤鸡　；参考：《中国畜牧杂志》2017年12期

【摘要】：试验旨在研究日粮中添加不同有机锌源(乳酸锌、蛋氨酸锌或甘氨酸锌)对四川农凤鸡肉中氨基酸与脂肪酸含量的影响。选用160只健康、体重接近的57周龄四川农凤鸡,采用单因素试验设计,随机分4个处理,每个处理5个重复,每个重复8只鸡。各处理组在基础日粮中分别添加60 mg/kg硫酸锌、60 mg/kg乳酸锌、60 mg/kg蛋氨酸锌和60 mg/kg甘氨酸锌(均以锌计)。预试期7 d,正试期63 d。结果表明:与硫酸锌组相比,添加乳酸锌显著提高四川农凤鸡肉中苏氨酸4.85%、蛋氨酸6.45%、赖氨酸5.70%、脯氨酸15.49%、丝氨酸5.62%、酪氨酸71.05%、天冬氨酸5.19%和丙氨酸4.62%(P0.05),但对脂肪酸含量无显著影响(P0.05);与蛋氨酸锌和甘氨酸锌组相比,乳酸锌组四川农凤鸡肉中赖氨酸、脯氨酸和酪氨酸含量显著提高(P0.05);蛋氨酸锌组四川农凤鸡肉中氨基酸和脂肪酸含量与甘氨酸锌组无显著差异(P0.05)。结果提示,在日粮中添加60 mg/kg乳酸锌可以提高四川农凤鸡肉中氨基酸含量,有利于改善鸡肉品质。
[Abstract]:The effects of different organic zinc sources (zinc lactate, zinc methionine or zinc glycine) on the contents of amino acids and fatty acids in Sichuan Nongfeng chicken were studied. 160 Sichuan Nongfeng chickens of the age of 57 weeks were selected and randomly divided into 4 treatments, 5 replicates per treatment and 8 chickens per replica. Each treatment group was fed with 60 mg/kg zinc sulfate and 60 mg/kg zinc lactate 60 mg/kg methionine zinc and 60 mg/kg glycine zinc respectively. The pretest period was 7 days and the current test period was 63 days. The results showed that: compared with zinc sulfate group, Addition of zinc lactate significantly increased threonine 4.85, methionine 6.45, lysine 5.70, proline 15.49, serine 5.62, tyrosine 71.05%, aspartic acid 5.19% and alanine 4.62% P0.05 in Sichuan Nongfeng chicken, but had no significant effect on fatty acid content, compared with zinc methionine and zinc glycine. The contents of lysine, proline and tyrosine in Sichuan Nongfeng chicken were significantly increased in zinc lactate group, but there was no significant difference in amino acid and fatty acid content between zinc methionine group and zinc glycine group. The results suggested that adding 60 mg/kg zinc lactate to the diet could increase the content of amino acids in Sichuan Nongfeng chicken and improve the quality of chicken.
【作者单位】：四川省畜牧科学研究院动物遗传育种四川省重点实验室畜禽生物制品四川省重点实验室;
【基金】：国家863计划项目(2013AA102306) 四川省财政运行专项(SASA2014CZYX006)
【分类号】：S831.5

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