Effect of restricted feeding on hen performance, egg quality and organ characteristics of individual laying hens

IF 6.3 Animal Nutrition Pub Date : 2023-09-01 DOI:10.1016/j.aninu.2023.05.001
Doreen O. Anene , Yeasmin Akter , Peter C. Thomson , Peter Groves , Cormac J. O'Shea
{"title":"Effect of restricted feeding on hen performance, egg quality and organ characteristics of individual laying hens","authors":"Doreen O. Anene ,&nbsp;Yeasmin Akter ,&nbsp;Peter C. Thomson ,&nbsp;Peter Groves ,&nbsp;Cormac J. O'Shea","doi":"10.1016/j.aninu.2023.05.001","DOIUrl":null,"url":null,"abstract":"<div><p>This study was to assess the impact of permanent or temporary restricted feeding on laying hen production traits, physiology, and egg quality. Two hundred and forty individually housed ISA Brown hens were monitored across 2 phases, assigned to 3 treatments: ad libitum feeding (ALF), temporary restricted feeding (TRF) and permanent restricted feeding (PRF), <em>n</em> = 80 hens per treatment. In Phase 1 (P1), 22 to 40 weeks, the TRF and PRF hens were offered 115 g of feed daily. In Phase 2 (P2), 41 to 46 weeks, the TRF hens were transitioned to ALF status while the ALF and PRF hens remained as in P1. From 35 to 40 weeks, eggs were collected once weekly from 15 hens per treatment and assessed for differences in albumen, yolk, and shell variables. At 45 weeks, 10 hens each from the ALF and PRF groups were euthanized and differences in organ characteristics were assessed. In P1, feed intake, feed to egg conversion ratio and body weight (BW) change were lower (<em>P</em> &lt; 0.01), while albumen height and Haugh unit were higher (<em>P</em> &lt; 0.01) in both PRF and TRF hen treatments compared to hens allocated the ALF treatment. In P2, TRF and ALF hens had a higher egg production and egg mass than PRF (<em>P</em> &lt; 0.01) than ALF. Body weight change in P2 was higher in TRF and similar in both ALF and PRF, while feed intake and feed conversion ratio were higher in TRF followed by ALF and least in the PRF treatment group (<em>P</em> &lt; 0.01). At 45 weeks ALF hens had a greater abdominal fat pad weight and fatty liver haemorrhagic syndrome lesion score compared to PRF. Restricting hens to 115 g of feed per day from point of lay restrained BW, improved feed conversion ratio and albumen quality and reduced abdominal fat pad deposition and clinical signs of fatty liver haemorrhagic syndrome in individually housed laying hens.</p></div>","PeriodicalId":62604,"journal":{"name":"Animal Nutrition","volume":null,"pages":null},"PeriodicalIF":6.3000,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/f5/75/main.PMC10338298.pdf","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Animal Nutrition","FirstCategoryId":"1091","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2405654523000495","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2

Abstract

This study was to assess the impact of permanent or temporary restricted feeding on laying hen production traits, physiology, and egg quality. Two hundred and forty individually housed ISA Brown hens were monitored across 2 phases, assigned to 3 treatments: ad libitum feeding (ALF), temporary restricted feeding (TRF) and permanent restricted feeding (PRF), n = 80 hens per treatment. In Phase 1 (P1), 22 to 40 weeks, the TRF and PRF hens were offered 115 g of feed daily. In Phase 2 (P2), 41 to 46 weeks, the TRF hens were transitioned to ALF status while the ALF and PRF hens remained as in P1. From 35 to 40 weeks, eggs were collected once weekly from 15 hens per treatment and assessed for differences in albumen, yolk, and shell variables. At 45 weeks, 10 hens each from the ALF and PRF groups were euthanized and differences in organ characteristics were assessed. In P1, feed intake, feed to egg conversion ratio and body weight (BW) change were lower (P < 0.01), while albumen height and Haugh unit were higher (P < 0.01) in both PRF and TRF hen treatments compared to hens allocated the ALF treatment. In P2, TRF and ALF hens had a higher egg production and egg mass than PRF (P < 0.01) than ALF. Body weight change in P2 was higher in TRF and similar in both ALF and PRF, while feed intake and feed conversion ratio were higher in TRF followed by ALF and least in the PRF treatment group (P < 0.01). At 45 weeks ALF hens had a greater abdominal fat pad weight and fatty liver haemorrhagic syndrome lesion score compared to PRF. Restricting hens to 115 g of feed per day from point of lay restrained BW, improved feed conversion ratio and albumen quality and reduced abdominal fat pad deposition and clinical signs of fatty liver haemorrhagic syndrome in individually housed laying hens.

Abstract Image

Abstract Image

Abstract Image

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
限制性饲养对蛋鸡生产性能、蛋品质及器官特性的影响
本研究旨在评估永久或临时限制饲养对蛋鸡生产性状、生理和蛋品质的影响。对240只单独饲养的ISA Brown母鸡进行了2个阶段的监测,分为3个处理:随意饲养(ALF)、临时限制饲养(TRF)和永久限制饲养(PRF),每个处理n=80只。在第1阶段(P1),22至40周,每天向TRF和PRF母鸡提供115克饲料。在第2阶段(P2),即41至46周,TRF母鸡转变为ALF状态,而ALF和PRF母鸡保持在P1状态。从35到40周,每处理15只母鸡,每周采集一次鸡蛋,并评估蛋白、蛋黄和蛋壳变量的差异。在45周时,分别对ALF和PRF组的10只母鸡实施安乐死,并评估器官特征的差异。在P1中,与分配ALF处理的母鸡相比,PRF和TRF处理的鸡的采食量、料蛋转化率和体重(BW)变化较低(P<;0.01),而蛋白高度和Haugh单位较高(P<:0.01)。在P2中,TRF和ALF母鸡比PRF具有更高的蛋产量和蛋质量(P<;0.01)。P2的体重变化在TRF中更高,在ALF和PRF中相似,而TRF中的采食量和饲料转化率更高,其次是ALF,在PRF治疗组中最低(P<;0.01)。在45周时,与PRF相比,ALF母鸡的腹部脂肪垫重量和脂肪肝出血综合征病变评分更高。从产蛋限制体重的角度来看,将母鸡限制在每天115克饲料,提高了饲料转化率和蛋白质量,减少了单独饲养的蛋鸡腹部脂肪垫沉积和脂肪肝出血综合征的临床症状。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
Animal Nutrition
Animal Nutrition Animal Science and Zoology
CiteScore
9.70
自引率
0.00%
发文量
542
审稿时长
65 days
期刊介绍: Animal Nutrition encompasses the full gamut of animal nutritional sciences and reviews including, but not limited to, fundamental aspects of animal nutrition such as nutritional requirements, metabolic studies, body composition, energetics, immunology, neuroscience, microbiology, genetics and molecular and cell biology related to primarily to the nutrition of farm animals and aquatic species. More applied aspects of animal nutrition, such as the evaluation of novel ingredients, feed additives and feed safety will also be considered but it is expected that such studies will have a strong nutritional focus. Animal Nutrition is indexed in SCIE, PubMed Central, Scopus, DOAJ, etc.
期刊最新文献
Influences of lauric acid addition on performance, nutrient digestibility and proteins related to mammary gland development in dairy cows Integrated multi-omics reveals the relationship between growth performance, rumen microbes and metabolic status of Hu sheep with different residual feed intakes Sheep-derived butyrate-producing Clostridium beijerinckii R8 alleviates diarrhea by shaping the gut microbiota of goat kids Effects of different ratios of soluble to insoluble dietary fiber on growth performance and intestinal health of piglets Marine red yeast supplementation improves laying performance by regulating small intestinal homeostasis in aging chickens
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1