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当前位置: 首页 > 文章 > 不同构型硒代蛋氨酸对肉鸡的作用效果 动物营养学报 2015,27 (12) 3861-3870
Position: Home > Articles > Action Effects of Different Selenomethionine Forms on Broilers Chinese Journal of Animal Nutrition 2015,27 (12) 3861-3870

不同构型硒代蛋氨酸对肉鸡的作用效果

作  者：
王永侠;茅慧玲;占秀安
单  位：
浙江农林大学动物科技学院
关键词：
亚硒酸钠;硒代蛋氨酸;肉鸡;肉质;消化酶;甲状腺激素;免疫
摘  要：
本试验旨在研究DL-和L-硒代蛋氨酸(Se-Met)对肉鸡的作用效果。选择600只1日龄体重相近罗斯(Ross)308雏鸡,随机分为3组,每组5个重复,每重复40只。3个组分别在基础饲粮(实测硒含量0.04 mg/kg)中添加0.15 mg/kg硒的亚硒酸钠(SS)、L-Se-Met和DL-SeM et,试验为期42 d。结果表明:与SS相比,不同构型Se-M et均显著提高了血清和组织硒含量及血清三碘甲状腺原氨酸含量(P<0.05),显著降低了宰后24和48 h胸肌滴水损失率及血清四碘甲状腺原氨酸/三碘甲状腺原氨酸(P<0.05);L-Se-Met显著提高了血清免疫球蛋白G(Ig G)含量及胰脏淀粉酶和蛋白酶活性(P<0.05);DL-Se-Met显著提高了血清免疫球蛋白A(Ig A)和Ig G含量及胰脏脂肪酶和淀粉酶活性(P<0.05)。此外,DL-Se-M et组血清Ig A和Ig G含量及血清、肾脏和肌肉硒含量均显著高于L-Se-Met组(P<0.05)。由此提示,Se-Met较SS能显著增加组织硒沉积,具有改善肉品质、促进消化酶和甲状腺激素分泌和提高免疫力的功效,总体效果为DL-Se-M et优于L-Se-M et。
译  名：
Action Effects of Different Selenomethionine Forms on Broilers
作  者：
WANG Yongxia;MAO Huiling;ZHAN Xiuan;College of Animal Science and Technology,Zhejiang Agriculture and Forestry University;Key Laboratory for Molecular Animal Nutrition of Ministry of Education,College of Animal Science,Zhejiang University;
关键词：
sodium selenite;;selenomethionine;;broilers;;meat quality;;digestive enzymes;;thyroid hormones;;immunity
摘  要：
The objective of this experiment was to investigate the effects of different forms of dietary selenomethionine( Se-Met) supplementation on broilers. A total of 600 one-day-old Ross 308 broilers with similar body weight were randomly divided into 3 groups with 5 replicates per group and 40 birds per replicate. These 3groups received the same basal diet containing 0. 04 mg / kg selenium( Se),supplemented with 0. 15 mg / kg Se from sodium selenite( SS) or L-Se-Met or DL-Se-Met. The experiment lasted for 42 days. The results showed as follows: compared with SS,different forms Se-Met significantly increased serum and tissue Se contents and serum triiodothyronine content( P<0. 05),but significantly decreased the percentage of drip loss of breast muscle at 24 and 48 h after slaughter and the ratio of thyroxine to triiodothyronine in serum( P <0. 05); L-Se-Met significantly increased serum immunoglobulin G( Ig G) content and pancreas amylase and protease activities( P<0. 05); DL-Se-Met significantly increased serum mmunoglobulin A( Ig A) and Ig G contents and pancreas lipase and amylase activities( P<0. 05). The serum Ig A and Ig G contents and serum,kidney and breast muscle Se contents of DL-Se-Met group were significantly higher than those of L-Se-Met group( P<0. 05). The results indicated that Se-Met is more effective than SS in increasing Se deposition and immunity,stimulating the secretion of digestive enzymes and thyroid hormones,thus providing an effective way to improve the meat quality of broilers. Besides,taking into account the overall effects,DL-Se-Met is superior to L-Se-Met.

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