中国畜牧兽医 ›› 2020, Vol. 47 ›› Issue (7): 2063-2070.doi: 10.16431/j.cnki.1671-7236.2020.07.011

• 动物营养与饲料科学 • 上一篇    下一篇

日粮硒水平对22~42日龄肉仔鸡生长性能及肉品质的影响

王丽赛1,2, 廖秀冬2, 冯艳忠3, 张丽阳2, 吕林2, 李素芬1, 罗绪刚2,4   

  1. 1. 河北科技师范学院动物科技学院, 秦皇岛 066004;
    2. 中国农业科学院北京畜牧兽医研究所, 矿物元素营养研究室, 北京 100193;
    3. 黑龙江省农业科学院畜牧研究所, 哈尔滨 150086;
    4. 扬州大学动物科学与技术学院, 家禽矿物元素营养实验室, 扬州 225000
  • 收稿日期:2019-12-03 出版日期:2020-07-20 发布日期:2020-07-18
  • 通讯作者: 李素芬(1964-),女,教授,研究方向:家禽营养与饲料,E-mail:lisufen64@163.com;罗绪刚(1963-),男,研究员,博士生导师,研究方向:家禽矿物元素生化与分子营养,E-mail:wlysz@263.net E-mail:lisufen64@163.com;wlysz@263.net
  • 作者简介:王丽赛(1994-),女,河北石家庄人,硕士生,研究方向:动物营养与饲料科学,E-mail:18833851121@163.com;廖秀冬(1985-),男,四川人,副研究员,研究方向:家禽矿物元素生化与分子营养,E-mail:liaoxd56@163.com
  • 基金资助:
    国家自然科学基金(31601956);河北省二期现代农业产业技术体系蛋肉鸡产业创新团队(HBCT2018150203、HBCT2018150206);中国农业科学院农科英才专项经费;中国农业科学院科技创新工程专项经费(ASTIP-IAS09);国家现代农业产业技术体系岗位专家专项经费(CARS-41)

Effect of Dietary Selenium Level on Growth Performance and Meat Quality of Broilers from 22 to 42 Days of Age

WANG Lisai1,2, LIAO Xiudong2, FENG Yanzhong3, ZHANG Liyang2, LYU Lin2, LI Sufen1, LUO Xugang2,4   

  1. 1. College of Animal Science and Technology, Hebei Normal University of Science and Technology, Qinhuangdao 066004, China;
    2. Mineral Nutrition Research Division, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
    3. Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China;
    4. Poultry Mineral Nutrition Laboratory, College of Animal Science and Technology, Yangzhou University, Yangzhou 225000, China
  • Received:2019-12-03 Online:2020-07-20 Published:2020-07-18

摘要: 为研究日粮硒水平对22~42日龄肉仔鸡生长性能和肉品质的影响,试验选用380只1日龄Arbor Acres(AA)肉公雏,1~21日龄统一饲喂同种正常添加无机硒的玉米-豆粕型日粮(含硒0.47 mg/kg),于22日龄从中选取体重接近的336只鸡,随机分成6个处理组,每组7个重复,每个重复8只鸡。分别饲喂不添加硒的玉米-豆粕型基础日粮(对照组,含硒0.015 mg/kg)和在基础日粮中分别添加0.10、0.20、0.30、0.40和0.50 mg/kg硒(以亚硒酸钠形式添加)的试验日粮,试验期21 d。结果表明,日粮中添加不同硒水平对22~42日龄肉仔鸡平均日增重、平均日采食量和料重比均无显著影响(P>0.05);对42日龄肉仔鸡屠宰率、全净膛率、胸肌率、腿肌率和腹脂率均无显著影响(P>0.05);日粮中添加不同硒水平对42日龄肉仔鸡腿肌剪切力和胸肌肉色L*值有显著影响(P<0.05),其中添加0.50 mg/kg硒处理组肉鸡的腿肌剪切力最低,添加0.20和0.50 mg/kg硒处理组肉鸡的胸肌肉色L*值最低,但其他肉质性状指标在各组间均无显著差异(P>0.05)。综上所述,玉米-豆粕型基础日粮中添加不同水平硒对22~42日龄肉仔鸡生长性能与42日龄肉仔鸡胴体性状均无显著影响,但日粮中添加0.50 mg/kg硒降低了腿肌剪切力和胸肌L*值,对肉品质有一定的改善作用。

关键词: 硒; 肉仔鸡; 生长性能; 胴体性状; 肉品质

Abstract: The experiment was conducted to investigate the effect of supplemental selenium (Se) on growth performance and meat quality of broilers from 22 to 42 days of age.A total of 380 one-day-old male Arbor Acres broilers were fed the same corn-soybean meal diet (containing 0.47 mg/kg Se) from 1 to 21 days of age.At 22 days of age,336 broilers with similar body weight were selected and randomly divided into 6 dietary treatments with 7 replicate cages of 8 broilers per cage for each treatment in a completely randomized design,and were fed a Se-unsupplemented corn-soybean meal basal diet (control group,containing 0.015 mg/kg Se) or the basal diet supplemented with 0.10,0.20,0.30,0.40 and 0.50 mg/kg Se from sodium selenite.The experiment lasted for 21 days.The results showed that supplemental different levels of Se had no effect on average daily gain,average daily feed intake and feed to gain ratio of broilers from 22 to 42 days of age (P>0.05).Supplemental different levels of Se had also no effect on the percentages of dressing,eviscerated yield,breast muscle,thigh muscle and abdominal fat of broilers at 42 days of age (P>0.05).Supplemental different levels of Se had significant effect on the shear force in thigh muscle and L* value in breast muscle of broilers at 42 days of age (P<0.05).The addition of 0.50 mg/kg Se treatment group had the lowest shear force in thigh muscle,and the addition of 0.20 and 0.50 mg/kg Se treatment groups had the lowest L* value in breast muscle.But supplemental Se level did not affect other indices of meat quality (P>0.05).In conclusion,supplemental different levels of Se had no significant effect on growth performance,carcass traits and most of meat quality indices in broilers fed corn-soybean meal diet from 22 to 42 days of age,however,dietary supplemental 0.50 mg/kg Se partly improved the shear force in thigh muscle and L* value in breast muscle of broilers.

Key words: selenium; broiler; growth performance; carcass traits; meat quality

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