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首页> 外文期刊>Poultry Science >Impact of maternal heat stress in conjunction with dietary zinc supplementation on hatchability, embryonic development, and growth performance in offspring broilers
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Impact of maternal heat stress in conjunction with dietary zinc supplementation on hatchability, embryonic development, and growth performance in offspring broilers

机译：母体热应力与膳食锌补充孵化性，胚胎发育和后代肉鸡生长性能的影响

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摘要

The aim of this study was to investigate whether maternal dietary supplementations with different zinc (Zn) sources could reduce the deleterious effect of maternal heat stress on hatchability performance and progeny growth performance. A completely randomized design (n - 6) with 2 maternal environmental temperatures [normal 21 +/- 1 degrees C (NT) vs. high 32 +/- 1 degrees C (HT)] x 3 maternal dietary supplemental Zn levels [Zn-unsupplemented control diet (CON), the control diet + 110 mg of Zn/kg of diet as either inorganic ZnSO4 (iZn) or organic Zn with a moderate chelation strength (oZn)] was used. HT decreased (P 0.05) fertility, hatchability, chick hatch weight, and embryonic survival. HT also decreased (P = 0.05) progeny BW, ADG, and ADFI at one to 21, 22 to 28, and 29 to 42 d of age as well as breast muscle ratio and plasma aspartate aminotransferase and creatine kinase activities at 42 d of age. Maternal dietary Zn supplementation with either iZn or oZn increased (P 0.004) Zn contents in yolk and liver, non-weak chick ratio, as well as progeny BW, ADFI, and survivability at one to 21 d of age. Notably, the addition of oZn increased (P 0.05) hatchability and progeny thigh meat quality by reducing b* value. The progeny ADG at one to 21 d and 22 to 28 d of age and BW at 28 d of age from maternal NT were not affected (P 0.46) by maternal dietary Zn supplementation, but the above 3 indices from HT-iZn (P 0.05) and HT-oZn (P 0.003) were higher than those from HT-CON. Our results indicate that maternal heat stress impairs hatching performance, embryonic development, and progeny growth performance, inducing metabolic changes, while supplementation of Zn in maternal diets regardless of Zn sources improved hatch chick quality and survivability of offspring and alleviated the negative effect of maternal heat stress on growth performance of offspring during the starter period. In addition, maternal dietary supplementation with the organic Zn improved hatchability and progeny meat quality.
机译：本研究的目的是调查母体膳食补充剂是否与不同锌（Zn）源（Zn）源可降低母体热应激对孵化性性能和后代生长性能的有害影响。具有2个母体环境温度的完全随机设计（N - 6）[正常21 +/- 1℃（NT）与高32 +/- 1摄氏度C（HT）] X 3母体膳食补充Zn水平[Zn-使用未填充的控制饮食（CON），使用作为无机ZnSO4（IZN）或具有中等螯合强度（OZN）的有机Zn的饮食的控制饮食+ 110mg Zn / kg饮食。 HT降低（P <0.05）生育，孵化率，小鸡孵化体和胚胎存活率。 HT也减少（P = 0.05）后的（p = 0.05），在42 d处为21,22至28和29至42 d的29至42〜29〜42 d和乳肌比例和血浆天冬氨酸氨基转移酶和肌肉激酶活性年龄。母体膳食Zn补充具有IZN或OZN的蛋黄和肝脏中的Zn含量，非弱的小鸡比以及后代BW，ADFI和生存性，每一个至21天。值得注意的是，通过减少B *值，加入OZN（P <0.05）的孵化率和后代大腿肉质。每一个至21 d和22至28天的后代ADG和28 d的BW从母体NT的28天受到母体膳食Zn补充的影响（p＆ 0.46），但是来自HT-IZN的上述3个指数（ P <0.05）和HT-OZN（P <0.003）高于HT-CON。我们的结果表明，母体热应力损害孵化性能，胚胎发育和后代生长性能，诱导代谢变化，同时补充母饮料中的Zn，无论Zn源改善孵化犬质量和后代的活力，并减轻了产妇热的负面影响起动期间后代生长性能的压力。此外，母体膳食补充剂，有机Zn改善了孵化率和后代肉质。

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  • 来源
    《Poultry Science》 |2017年第7期|共9页
  • 作者

    Zhu Y. W.; Li W. X.; Lu L.; Zhang L. Y.; Ji C.; Lin X.; Liu H. C.; Odle J.; Luo X. G.;

  • 作者单位

    Chinese Acad Agr Sci Inst Anim Sci Mineral Nutr Res Div Beijing 100193 Peoples R China;

    China Agr Univ Coll Anim Sci &

    Technol Beijing 100193 Peoples R China;

    Chinese Acad Agr Sci Inst Anim Sci Mineral Nutr Res Div Beijing 100193 Peoples R China;

    Chinese Acad Agr Sci Inst Anim Sci Mineral Nutr Res Div Beijing 100193 Peoples R China;

    China Agr Univ Coll Anim Sci &

    Technol Beijing 100193 Peoples R China;

    North Carolina State Univ Dept Anim Sci Box 7621 Raleigh NC 27695 USA;

    North Carolina State Univ Dept Anim Sci Box 7621 Raleigh NC 27695 USA;

    North Carolina State Univ Dept Anim Sci Box 7621 Raleigh NC 27695 USA;

    Chinese Acad Agr Sci Inst Anim Sci Mineral Nutr Res Div Beijing 100193 Peoples R China;

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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

    chick embryo; growth performance; maternal heat stress; offspring; zinc;

    机译：小鸡胚胎;生长性能;产妇热应激;后代;锌;

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