尼日利亚迈杜古里半干旱地区山羊体重、睾丸重量、年龄与阴囊周长的关系

N. Alade, C. Ezeokoli, I. Muhammed
{"title":"尼日利亚迈杜古里半干旱地区山羊体重、睾丸重量、年龄与阴囊周长的关系","authors":"N. Alade, C. Ezeokoli, I. Muhammed","doi":"10.4314/APRA.V5I1.49820","DOIUrl":null,"url":null,"abstract":"The relationships between body weight, testicular weight, age and the scrotal circumference were analysed in 62 bucks made up of the Sahel (S), Red Sokoto (RS) and West African Dwarf (WAD) breeds and aged three to nine months. Scrotal circumference increased with age; ranging from 9.87 to 13.35 cm. The effects of breed, season, parity and litter size were significant (p 0.05). At these ages, S and RS had similar scrotal circumference, though, both were superior to WAD. Heritability and repeatability estimates were moderate to high. Genotypic and phenotypic correlations of scrotal circumference with body weight and testicular weight were generally high and positive. However, the scrotal circumference had higher correlation with testicular weight than body weight. Based on the genetic parameters, scrotal circumference can be improved by direct selection with a correlated response from testicular weight and body weight. Keywords: Goats, testicular weight, scrotal circumference, bucks, Nigeria","PeriodicalId":350170,"journal":{"name":"Animal Production Research Advances","volume":"18 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2010-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"The relationships between body weight, testicular weight, age and the scrotal circumference of goats in the semi-arid Maiduguri, Nigeria\",\"authors\":\"N. Alade, C. Ezeokoli, I. Muhammed\",\"doi\":\"10.4314/APRA.V5I1.49820\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The relationships between body weight, testicular weight, age and the scrotal circumference were analysed in 62 bucks made up of the Sahel (S), Red Sokoto (RS) and West African Dwarf (WAD) breeds and aged three to nine months. Scrotal circumference increased with age; ranging from 9.87 to 13.35 cm. The effects of breed, season, parity and litter size were significant (p 0.05). At these ages, S and RS had similar scrotal circumference, though, both were superior to WAD. Heritability and repeatability estimates were moderate to high. Genotypic and phenotypic correlations of scrotal circumference with body weight and testicular weight were generally high and positive. However, the scrotal circumference had higher correlation with testicular weight than body weight. Based on the genetic parameters, scrotal circumference can be improved by direct selection with a correlated response from testicular weight and body weight. Keywords: Goats, testicular weight, scrotal circumference, bucks, Nigeria\",\"PeriodicalId\":350170,\"journal\":{\"name\":\"Animal Production Research Advances\",\"volume\":\"18 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2010-01-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Animal Production Research Advances\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.4314/APRA.V5I1.49820\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Animal Production Research Advances","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4314/APRA.V5I1.49820","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3

摘要

研究人员分析了体重、睾丸重量、年龄和阴囊周长之间的关系。研究人员选取了年龄在3至9个月之间的62只公鹿,这些公鹿分别来自萨赫勒(S)、红索科托(RS)和西非侏儒(WAD)品种。阴囊周长随年龄增长而增加;范围从9.87到13.35厘米。品种、季节、胎次和产仔数的影响显著(p 0.05)。在这些年龄,S和RS的阴囊周长相似,但都优于WAD。遗传率和可重复性估计为中等至高。阴囊周长与体重和睾丸重量的基因型和表型相关性普遍较高,呈正相关。而阴囊周长与睾丸重量的相关性高于体重。在遗传参数的基础上,通过睾丸质量和体重的相关响应,可以直接选择提高阴囊围。关键词:山羊,睾丸重量,阴囊周长,雄鹿,尼日利亚
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The relationships between body weight, testicular weight, age and the scrotal circumference of goats in the semi-arid Maiduguri, Nigeria
The relationships between body weight, testicular weight, age and the scrotal circumference were analysed in 62 bucks made up of the Sahel (S), Red Sokoto (RS) and West African Dwarf (WAD) breeds and aged three to nine months. Scrotal circumference increased with age; ranging from 9.87 to 13.35 cm. The effects of breed, season, parity and litter size were significant (p 0.05). At these ages, S and RS had similar scrotal circumference, though, both were superior to WAD. Heritability and repeatability estimates were moderate to high. Genotypic and phenotypic correlations of scrotal circumference with body weight and testicular weight were generally high and positive. However, the scrotal circumference had higher correlation with testicular weight than body weight. Based on the genetic parameters, scrotal circumference can be improved by direct selection with a correlated response from testicular weight and body weight. Keywords: Goats, testicular weight, scrotal circumference, bucks, Nigeria
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:604180095
Book学术官方微信