动物营养学报 >

2016 , Vol. 28 >Issue 9: 2920 - 2926

DOI: https://doi.org/10.3969/j.issn.1006-267x.2016.09.031

研究简报 Short communications

饲粮添加蛋氨酸锰对蛋鸡生产性能、蛋品质及血清生化指标的影响

  • 周旻瑶 ,
  • 苗丽萍 ,
  • 齐明星 ,
  • 邹晓庭
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  • 浙江大学饲料科学研究所, 农业部动物营养与饲料科学重点实验室, 杭州 310058

收稿日期: 2016-03-21

  网络出版日期: 2016-09-08

基金资助

国家蛋鸡产业技术体系（CARS-41-K17）；“十二五”国家科技支撑计划（2014BAD13B04）

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Effects of Dietary Manganese Methionine on Performance, Egg Quality and Serum Biochemical Parameters of Laying Hens

  • ZHOU Minyao ,
  • MIAO Liping ,
  • QI Mingxing ,
  • ZOU Xiaoting
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  • Key Laboratory of Animal Nutrition and Feed Science of Ministry of Agriculture, Feed Science Institute, Zhejiang University, Hangzhou 310058, China

Received date: 2016-03-21

  Online published: 2016-09-08

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摘要

本试验旨在研究饲粮添加蛋氨酸锰对蛋鸡生产性能、蛋品质及血清生化指标的影响。选用53周龄生产性能相近的“京红1号”商品蛋鸡480羽，随机分成5组，每组6个重复，每个重复16羽。蛋鸡饲喂玉米-豆粕型基础饲粮（5%预混料中不含锰），对照组在基础饲粮的基础上添加60 mg/kg硫酸锰（以锰计），试验组在基础饲粮的基础上分别添加20、40、60、80 mg/kg蛋氨酸锰（以锰计），预试期1周，正试期9周。结果表明：1）40 mg/kg蛋氨酸锰组蛋鸡的平均日采食量显著高于对照组（P<0.05），比对照组提高了3.23%；饲粮添加蛋氨酸锰对蛋鸡的产蛋率、平均蛋重及料蛋比均无显著影响（P>0.05）。2）60、80 mg/kg蛋氨酸锰组的哈夫单位、蛋壳强度和蛋壳厚度均显著高于对照组（P<0.05），其中哈夫单位比对照组分别提高了8.42%及10.33%（P<0.05），蛋壳强度比对照组分别提高了12.13%及17.05%（P<0.05），蛋壳厚度比对照组均提高了8.57%（P<0.05）；饲粮添加蛋氨酸锰对蛋白高度及蛋黄颜色无显著影响（P>0.05）。3）80 mg/kg蛋氨酸锰组蛋鸡的血清尿酸含量显著低于对照组（P<0.05），比对照组降低了25.12%；饲粮添加蛋氨酸锰对血清碱性磷酸酶、谷草转氨酶、谷丙转氨酶活性及钙、磷、葡萄糖、总蛋白和白蛋白含量均无显著影响（P>0.05），但各蛋氨酸锰添加组的血清碱性磷酸酶活性、白蛋白和钙含量与对照组相比有上升的趋势。由此可见，饲粮添加蛋氨酸锰可改善蛋品质，抑制蛋白质的分解代谢，提高蛋白质的利用率。

关键词： 蛋氨酸锰; 蛋鸡; 生产性能; 蛋品质; 血清生化指标

本文引用格式

周旻瑶 , 苗丽萍 , 齐明星 , 邹晓庭 . 饲粮添加蛋氨酸锰对蛋鸡生产性能、蛋品质及血清生化指标的影响[J]. 动物营养学报, 2016 , 28(9) : 2920 -2926 . DOI: 10.3969/j.issn.1006-267x.2016.09.031

Abstract

This experiment was conducted to study the effects of dietary manganese methionine (Mn-Met) on performance, egg quality and serum biochemical parameters of laying hens. Four hundred and eighty 53-week-old Jinghong No.1 laying hens with similar performance were randomly allocated to 5 groups with 6 replicates per group and 16 layers per replicate. A corn-soybean meal without manganese in the 5% premix was applied as the basal diet. The laying hens in the control group were fed the basal diet supplemented with 60 mg/kg MnSO4 (as a manganese basis), and the others in the experimental groups were fed the basal diets supplemented with 20, 40, 60 and 80 mg/kg Mn-Met (as a manganese basis), respectively. The pretest period lasted for 1 week, and the experimental period lasted for 9 weeks. The results showed as follows: 1) the average daily feed intake of laying hens in 40 mg/kg Mn-Met group was significantly higher than that in the control group and increased by 3.23% (P<0.05). Dietary Mn-Met had no significant effects on laying rate, average egg weight and the ratio of feed to egg of laying hens (P>0.05). 2) The Haugh unit, eggshell strength and eggshell thickness in 60 and 80 mg/kg Mn-Met groups were significantly higher than those in the control group (P<0.05). Compared with the control group, Haugh unit was increased by 8.42% and 10.32% (P<0.05), respectively, eggshell strength was increased by 12.13% and 17.05% (P<0.05), respectively, and eggshell thickness was increased by 8.57% both (P<0.05). Dietary Mn-Met had no significant effects on albumen height and yolk color (P>0.05). 3) The serum uric acid (UA) content of laying hens in 80 mg/kg Mn-Met group was significantly lower than that in the control group and decreased by 25.12% (P<0.05). Dietary Mn-Met had no significant effects on the activities of alkaline phosphatase (AKP), glutamic oxalacetic transaminase (GOT) and glutamic-pyruvic transaminase (GPT) and the contents of calcium (Ca), phosphorus (P), glucose (GLU), total protein (TP) and albumin (ALB) (P>0.05), but the activity of AKP and the contents of ALB and Ca in Mn-Met supplemented groups showed an increasing trend in comparison with that in the control group. In conclusion, dietary Mn-Met can improve the egg quality, inhibit the protein catabolism and promote the protein utilization.

Key words： manganese methionine; laying hens; performance; egg quality; serum biochemical parameters

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