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Copper requirements of broiler breeder hens

机译：肉鸡饲料母鸡的铜价

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摘要

One-hundred-twenty Cobb 500 hens, 20 wk of age, were randomly allocated into individual cages with the objective of estimating Cu requirements. After being fed a Cu deficient diet for 4 wk, hens were fed diets with graded increments of supplemental Cu (0.0; 3.5; 7.0; 10.5; 14; and 17.5 ppm) from Cu sulfate (CuSO(4)5H(2)O), totaling 2.67; 5.82; 9.38; 12.92; 16.83; and 20.19 ppm analyzed Cu in feeds for 20 weeks. Estimations of Cu requirements were done using exponential asymptotic (EA), broken line quadratic (BLQ), and quadratic polynomial (QP) models. Obtained Cu requirements for hen d egg production and total settable eggs per hen were 6.2, 7.3, and 12.9 ppm and 8.1, 9.0, and 13.4 ppm, respectively, using EA, BLQ, and QP models. The QP model was the only one having a fit for total eggs per hen with 13.1 ppm Cu as a requirement. Hemoglobin, hematocrit, and serum Cu from hens had requirements estimated as 13.9, 11.3, and 18.5, ppm; 14.6, 13.0, and 19.0 ppm; and 16.2, 14.6, and 14.2 ppm, respectively, for EA, BLQ, and QP models. Hatching chick hemoglobin was not affected by dietary Cu, whereas requirements estimated for hatching chick hematocrit and body weight and length were 10.2, 12.3, and 13.3 ppm using EA, BLQ, and QP models; and 6.8 and 7.1 ppm, and 12.9 and 13.9 ppm Cu using EA and BLQ models, respectively. Maximum responses for egg weight, yolk Cu content, and eggshell membrane thickness were 14.9, 12.7, and 15.1 ppm; 15.0, 16.3, and 15.7 ppm; and 7.3, 7.8, and 14.0 ppm Cu, respectively, for EA, BLQ, and QP models. Yolk and albumen percentage were adjusted only with the QP model and had requirements estimated at 11.0 ppm and 11.3 ppm, respectively, whereas eggshell mammillary layer was maximized with 10.6, 10.1, and 14.4 ppm Cu using EA, BLQ, and QP models, respectively. The average of all Cu requirement estimates obtained in the present study was 12.5 ppm Cu.
机译：一百二十家Cobb 500母鸡，20周龄，随机分配给单个笼子，目的是估算Cu要求。在喂养4个WK的Cu缺乏饮食后，母鸡以含量的Cu（0.0; 3.5; 7.0; 10.5; 14; 14.14; 17.5 ppm）的渐进量喂食饮食（0.0; 3.5; 14; 17.5 ppm）（cuso（4）5h（2）o） ，总计2.67; 5.82; 9.38; 12.92; 16.83;和20.19ppm在饲料中分析了20周的Cu。使用指数渐近（EA），虚线二次（BLQ）和二次多项式（QP）模型进行Cu要求的估计。获得的Cu要求Hen D鸡蛋产量和每只母鸡的总可成立蛋分别为6.2,7.3和12.9ppm和8.1,9.0和13.4ppm，使用EA，BLQ和QP模型。 QP模型是唯一一个具有适合于每母鸡的总蛋，其中13.1ppm Cu作为要求。血红蛋白，血细胞比容和来自母鸡的血清Cu的要求估计为13.9,11.3和18.5，ppm; 14.6,13.0和19.0 ppm;分别为EA，BLQ和QP模型分别为16.2,14.6和14.2 ppm。孵化的小鸡血红蛋白不受膳食Cu的影响，而使用EA，BLQ和QP型号孵化的孵化血清血接和体重和长度估计的要求为10.2,12.3和13.3ppm;使用EA和BLQ模型分别为6.8和7.1ppm和12.9和13.9ppm Cu。卵子重量，蛋黄含量和蛋壳膜厚度的最大反应为14.9,12.7和15.1ppm; 15.0,16.3和15.7 ppm;为EA，BLQ和QP模型分别为7.3,7.8和14.0 ppm Cu。仅使用QP模型调整蛋黄和蛋白百分比，并分别估计11.0ppm和11.3ppm的要求，而蛋壳哺乳动物层分别使用EA，BLQ和QP型号最大化为10.6,10.1和14.4ppm Cu。本研究中获得的所有Cu需求估计的平均值为12.5ppm Cu。

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  • 来源
    《Poultry Science》 |2018年第8期|共13页
  • 作者

    Berwanger E.; Vieira S. L.; Angel C. R.; Kindlein L.; Mayer A. N.; Ebbing M. A.; Lopes M.;

  • 作者单位

    Univ Fed Rio Grande do Sul Dept Anim Sci Av Bento Goncalves 7712 BR-91540000 Porto Alegre RS Brazil;

    Univ Fed Rio Grande do Sul Dept Anim Sci Av Bento Goncalves 7712 BR-91540000 Porto Alegre RS Brazil;

    Univ Maryland Dept Anim &

    Avian Sci College Pk MD 20742 USA;

    Univ Fed Rio Grande do Sul Dept Prevent Vet Med Av Bento Goncalves 8834 BR-91540000 Porto Alegre RS Brazil;

    Univ Fed Rio Grande do Sul Dept Anim Sci Av Bento Goncalves 7712 BR-91540000 Porto Alegre RS Brazil;

    Univ Fed Rio Grande do Sul Dept Anim Sci Av Bento Goncalves 7712 BR-91540000 Porto Alegre RS Brazil;

    Univ Fed Rio Grande do Sul Dept Anim Sci Av Bento Goncalves 7712 BR-91540000 Porto Alegre RS Brazil;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 畜牧、动物医学、狩猎、蚕、蜂;
  • 关键词

    broiler breeder; broiler chick; copper; mineral;

    机译：肉鸡饲养员;肉鸡;铜;矿物质;

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