生长期褐蛋鸡可消化赖氨酸水平

P. R. D. S. D. C. Leite, N. Leandro, J. H. Stringhini, H. Mello, M. Café, E. M. Oliveira, Marcela Luzia Rodrigues Pereira
{"title":"生长期褐蛋鸡可消化赖氨酸水平","authors":"P. R. D. S. D. C. Leite, N. Leandro, J. H. Stringhini, H. Mello, M. Café, E. M. Oliveira, Marcela Luzia Rodrigues Pereira","doi":"10.15210/SAH.V6I2.12457","DOIUrl":null,"url":null,"abstract":"The objective was to determine the level of digestible lysine in the grower diet of brown egg layers at two weight categories, and assess the residual effect of the grower diet on the laying phase. A total of 400 13-week-old brown egg layers were used, in a randomized blocks design with a 2 x 4 factorial arrangement (two weight categories x four digestible lysine levels: 5.29, 6.29, 7.29 and 8.29 g/kg), with five replications and 10 birds per experimental unit. A metabolism assay was carried out during the 17th week of age. Body weight, feed intake, feed conversion and weight gain were evaluated between 23 and 35 weeks; and egg quality was assessed during three 28-day periods. Data were subjected to analysis of variance and polynomial regression. No link was found between layer weight categories and lysine levels in grower diet for all studied variables. Nitrogen balance increased as digestible lysine was added to diets. There was no effect of digestible lysine on weight gain and precocity of production. Birds in the standard weight category were more precocious and had higher egg production and weight during the laying phase. Digestible lysine levels in diet did not influence performance and egg quality during the laying phase. A level of 5.2 g/kg of digestible lysine is recommended in grower diet (13 to 20 weeks of age) for brown egg layers, which corresponds to an intake of 550 mg/bird/day.","PeriodicalId":286969,"journal":{"name":"Science And Animal Health","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2019-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"DIGESTIBLE LYSINE LEVELS FOR GROWER PHASE BROWN EGG LAYERS\",\"authors\":\"P. R. D. S. D. C. Leite, N. Leandro, J. H. Stringhini, H. Mello, M. Café, E. M. Oliveira, Marcela Luzia Rodrigues Pereira\",\"doi\":\"10.15210/SAH.V6I2.12457\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The objective was to determine the level of digestible lysine in the grower diet of brown egg layers at two weight categories, and assess the residual effect of the grower diet on the laying phase. A total of 400 13-week-old brown egg layers were used, in a randomized blocks design with a 2 x 4 factorial arrangement (two weight categories x four digestible lysine levels: 5.29, 6.29, 7.29 and 8.29 g/kg), with five replications and 10 birds per experimental unit. A metabolism assay was carried out during the 17th week of age. Body weight, feed intake, feed conversion and weight gain were evaluated between 23 and 35 weeks; and egg quality was assessed during three 28-day periods. Data were subjected to analysis of variance and polynomial regression. No link was found between layer weight categories and lysine levels in grower diet for all studied variables. Nitrogen balance increased as digestible lysine was added to diets. There was no effect of digestible lysine on weight gain and precocity of production. Birds in the standard weight category were more precocious and had higher egg production and weight during the laying phase. Digestible lysine levels in diet did not influence performance and egg quality during the laying phase. A level of 5.2 g/kg of digestible lysine is recommended in grower diet (13 to 20 weeks of age) for brown egg layers, which corresponds to an intake of 550 mg/bird/day.\",\"PeriodicalId\":286969,\"journal\":{\"name\":\"Science And Animal Health\",\"volume\":\"1 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2019-03-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Science And Animal Health\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.15210/SAH.V6I2.12457\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Science And Animal Health","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.15210/SAH.V6I2.12457","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

摘要

目的是测定两种体重类别褐蛋鸡生长饲粮中可消化赖氨酸水平,并评价生长饲粮对产蛋期的残留影响。试验选用400只13周龄褐蛋鸡,采用2 × 4因子随机区组设计(2个体重类别× 4个可消化赖氨酸水平:5.29、6.29、7.29和8.29 g/kg), 5个重复,每个试验单位10只鸡。在17周龄时进行代谢测定。在23 ~ 35周龄评估体重、采食量、饲料系数和增重;在3个28天的周期内评估卵子质量。数据进行方差分析和多项式回归分析。所有研究变量均未发现蛋鸡体重类别与饲粮赖氨酸水平之间存在联系。随着饲粮中可消化赖氨酸的添加,氮平衡增加。可消化赖氨酸对体重增加和早熟没有影响。在产蛋阶段,标准体重的鸡早熟程度更高,产蛋量和体重也更高。饲粮中可消化赖氨酸水平对蛋鸡产蛋性能和蛋品质无显著影响。褐蛋鸡生长饲粮(13 ~ 20周龄)中推荐的可消化赖氨酸水平为5.2 g/kg,相当于550 mg/天。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
DIGESTIBLE LYSINE LEVELS FOR GROWER PHASE BROWN EGG LAYERS
The objective was to determine the level of digestible lysine in the grower diet of brown egg layers at two weight categories, and assess the residual effect of the grower diet on the laying phase. A total of 400 13-week-old brown egg layers were used, in a randomized blocks design with a 2 x 4 factorial arrangement (two weight categories x four digestible lysine levels: 5.29, 6.29, 7.29 and 8.29 g/kg), with five replications and 10 birds per experimental unit. A metabolism assay was carried out during the 17th week of age. Body weight, feed intake, feed conversion and weight gain were evaluated between 23 and 35 weeks; and egg quality was assessed during three 28-day periods. Data were subjected to analysis of variance and polynomial regression. No link was found between layer weight categories and lysine levels in grower diet for all studied variables. Nitrogen balance increased as digestible lysine was added to diets. There was no effect of digestible lysine on weight gain and precocity of production. Birds in the standard weight category were more precocious and had higher egg production and weight during the laying phase. Digestible lysine levels in diet did not influence performance and egg quality during the laying phase. A level of 5.2 g/kg of digestible lysine is recommended in grower diet (13 to 20 weeks of age) for brown egg layers, which corresponds to an intake of 550 mg/bird/day.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
0
×
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
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
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 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信