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首页> 外文期刊>Poultry Science >Effects of dietary octacosanol supplementation on laying performance, egg quality, serum hormone levels, and expression of genes related to the reproductive axis in laying hens
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Effects of dietary octacosanol supplementation on laying performance, egg quality, serum hormone levels, and expression of genes related to the reproductive axis in laying hens

机译：膳食辛烷醇补充对饲养母鸡生殖轴相关性，鸡蛋质量，血清激素水平的影响，蛋白质

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摘要

This experiment was conducted to evaluate the effects of dietary octacosanol supplementation on laying performance, egg quality, serum hormone levels, and gene expression related to reproductive axis in laying hens to confirm the reproduction-promoting function of octacosanol. In total, 360 Hy-Line Brown (67-wk-old) laying hens were randomly assigned to one of three treatments with 0, 5, and 10 mg octacosanol (extracted from rice bran, purity > 92%)/kg feed. The feeding trial lasted for 10 weeks. The results showed that the dietary addition of 5 and 10 mg/kg octacosanol improved feed efficiency by 4.9% and 3.4% (P < 0.01), increased the albumen height by 20.5% and 13.3% (P < 0.01), the Haugh unit score by 12.9% and 8.7% (P < 0.01), and the eggshell strength by 39.5% and 24.5% (P < 0.01), respectively, compared with the control diet. Dietary octacosanol addition significantly affected serum tri-iodothyronine, estradiol, follicle-stimulating hormone levels (P < 0.05), and progesterone and luteinizing hormone level (P < 0.01). Compared with the control, dietary addition of octacosanol at 5 mg/kg promoted the follicle-stimulating hormone receptor (FSHR) mRNA expression in different-sized follicles, and significantly increased the FSHR mRNA expression of granulosa cells from the F2 and F3 follicles (P < 0.05). Dietary supplementation with both 5 and 10 mg/kg octacosanol promoted the mRNA expression of luteinizing hormone receptor and prolactin receptor in different-sized follicles, and significantly up-regulated the expression levels in F1 granulosa cells (P < 0.05). The ovarian weight was significantly increased with the dietary addition of 5 mg/kg octacosanol (P < 0.05). The numbers of small yellow follicles and large white follicles were increased with the addition of dietary 5 and 10 mg/kg octacosanol (P < 0.01). This study provides evidence that octacosanol has the capacity to improve reproductive performance, indicating that it is a potentially effective feed additive in egg production.
机译：进行该实验以评估膳食八烷醇醇补充对饲养母鸡育种轴的饮用性能，蛋质质，血清水平和基因表达的影响，以确认八氰醇的再生促进功能。总共，360密度棕色（67-WK旧）铺设母鸡被随机分配到具有0,5和10mg辛糖醇的三种处理中的一种（从水稻麸皮，纯度> 92％）/ kg饲料中。喂养审判持续了10周。结果表明，膳食添加5和10mg / kg辛辣甘油醇提高了进料效率4.9％和3.4％（P <0.01），增加了蛋白高度20.5％和13.3％（P <0.01），赫加单位得分与对照饮食相比，分别为12.9％和8.7％（P <0.01），蛋壳强度分别为39.5％和24.5％（P <0.01）。膳食八氰醇添加显着影响血清三碘罗酮，雌二醇，刺激激素水平（P <0.05）和孕酮和酸盐激素水平（P <0.01）。与对照相比，5mg / kg的八甘油醇的膳食添加促进了不同尺寸的卵泡中的卵泡刺激激素受体（FSHR）mRNA表达，并显着增加了F2和F3卵泡的颗粒细胞的Fshr mRNA表达（P. <0.05）。用5和10mg / kg八葡萄糖醇的膳食补充促进了不同尺寸的卵泡中的叶黄素激素受体和催乳素受体的mRNA表达，并显着上调F1颗粒细胞中的表达水平（P <0.05）。卵巢重量显着增加，膳食加入5mg / kg八氰醇（P <0.05）。添加膳食5和10mg / kg辛糖醇（P <0.01），增加了小黄色卵泡和大白卵泡的数量。本研究提供了证据表明辛辣甘油醇具有改善繁殖性能的能力，表明它是鸡蛋生产中潜在有效的饲料添加剂。

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  • 来源
    《Poultry Science》 |2017年第4期|共10页
  • 作者

    Long L.; Wu S. G.; Yuan F.; Zhang H. J.; Wang J.; Qi G. H.;

  • 作者单位

    Chinese Acad Agr Sci Feed Res Inst Minist Agr Key Lab Feed Biotechnol Beijing 100081 Peoples R China;

    Chinese Acad Agr Sci Feed Res Inst Minist Agr Key Lab Feed Biotechnol Beijing 100081 Peoples R China;

    Tianjin Naer Biotechnol Co Ltd Tianjin 300457 Peoples R China;

    Chinese Acad Agr Sci Feed Res Inst Minist Agr Key Lab Feed Biotechnol Beijing 100081 Peoples R China;

    Chinese Acad Agr Sci Feed Res Inst Minist Agr Key Lab Feed Biotechnol Beijing 100081 Peoples R China;

    Chinese Acad Agr Sci Feed Res Inst Minist Agr Key Lab Feed Biotechnol Beijing 100081 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

    octacosanol; laying performance; reproduction; hormone level; laying hen;

    机译：八卤代醇;铺设性能;繁殖;激素水平;铺设母鸡;

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