{"title":"尼日利亚西南地区广泛饲养的西非矮山羊的活重与体重的相关系数","authors":"A. Tella, C. Chineke, O. O. Jacob","doi":"10.4314/gjas.v58i1.5","DOIUrl":null,"url":null,"abstract":"The study was conducted in Ejigbo Local Government Area of Osun State, a derived savanna zone of Nigeria. Body measurements and live weight were assessed in 399 West African Dwarf (WAD) goats 194 bucks and 205 does. The data were segregated based on sex and age groups to obtain detailed information for characterisation goat in the experimental area. Body measurement values increased significantly (p ≤ 0.05) with age in both sexes. Mean body weight ranged from 5.32±0.15 kg to 29.63±1.88 kg in bucks, and 5.75±0.13 kg to 30.29±1.22 kg in does. Live weight was positively and significantly (p ≤ 0.05) related with most body parameters. Body length, heart girth, rump height had highest coefficient of correlation across ages. Phenotypic values were higher in male WAD goats than the female. Conclusively, body weight and linear body measurements are economically important traits in animal genetic resources especially small ruminants like goats. Selection for increase in any of the two phenotypic variables (live weight and linear measurements) will result in an equal increase in the other. Equally, live weights, in the absence of adequate records, can be utilized to predict traits that are correlated with linear measurements.","PeriodicalId":174273,"journal":{"name":"Ghana journal of agricultural science","volume":"39 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2023-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Correlation coefficient of live weight and body measurements of extensively reared West African Dwarf goats in south west zone of Nigeria\",\"authors\":\"A. Tella, C. Chineke, O. O. Jacob\",\"doi\":\"10.4314/gjas.v58i1.5\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The study was conducted in Ejigbo Local Government Area of Osun State, a derived savanna zone of Nigeria. Body measurements and live weight were assessed in 399 West African Dwarf (WAD) goats 194 bucks and 205 does. The data were segregated based on sex and age groups to obtain detailed information for characterisation goat in the experimental area. Body measurement values increased significantly (p ≤ 0.05) with age in both sexes. Mean body weight ranged from 5.32±0.15 kg to 29.63±1.88 kg in bucks, and 5.75±0.13 kg to 30.29±1.22 kg in does. Live weight was positively and significantly (p ≤ 0.05) related with most body parameters. Body length, heart girth, rump height had highest coefficient of correlation across ages. Phenotypic values were higher in male WAD goats than the female. Conclusively, body weight and linear body measurements are economically important traits in animal genetic resources especially small ruminants like goats. Selection for increase in any of the two phenotypic variables (live weight and linear measurements) will result in an equal increase in the other. Equally, live weights, in the absence of adequate records, can be utilized to predict traits that are correlated with linear measurements.\",\"PeriodicalId\":174273,\"journal\":{\"name\":\"Ghana journal of agricultural science\",\"volume\":\"39 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2023-08-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Ghana journal of agricultural science\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.4314/gjas.v58i1.5\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ghana journal of agricultural science","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4314/gjas.v58i1.5","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
该研究是在尼日利亚派生的热带稀树草原地区奥孙州的埃吉博地方政府区进行的。对399只西非矮山羊(WAD)进行了体重测量和活重评估,分别为194公鹿和205公羊。数据根据性别和年龄组进行分离,以获得实验区山羊特征的详细信息。体测量值随年龄的增长而显著升高(p≤0.05)。雄鹿平均体重为5.32±0.15 kg ~ 29.63±1.88 kg,公鹿平均体重为5.75±0.13 kg ~ 30.29±1.22 kg。活重与大部分体参数呈显著正相关(p≤0.05)。体长、胸围、臀高在各年龄段的相关系数最高。表型值在雄性WAD山羊中高于雌性。总之,体重和线性体测量是动物遗传资源中重要的经济性状,尤其是山羊等小型反刍动物。选择增加两种表型变量(活重和线性测量)中的任何一种都会导致另一种表型变量的相等增加。同样,在没有足够记录的情况下,也可以利用活重来预测与线性测量相关的性状。
Correlation coefficient of live weight and body measurements of extensively reared West African Dwarf goats in south west zone of Nigeria
The study was conducted in Ejigbo Local Government Area of Osun State, a derived savanna zone of Nigeria. Body measurements and live weight were assessed in 399 West African Dwarf (WAD) goats 194 bucks and 205 does. The data were segregated based on sex and age groups to obtain detailed information for characterisation goat in the experimental area. Body measurement values increased significantly (p ≤ 0.05) with age in both sexes. Mean body weight ranged from 5.32±0.15 kg to 29.63±1.88 kg in bucks, and 5.75±0.13 kg to 30.29±1.22 kg in does. Live weight was positively and significantly (p ≤ 0.05) related with most body parameters. Body length, heart girth, rump height had highest coefficient of correlation across ages. Phenotypic values were higher in male WAD goats than the female. Conclusively, body weight and linear body measurements are economically important traits in animal genetic resources especially small ruminants like goats. Selection for increase in any of the two phenotypic variables (live weight and linear measurements) will result in an equal increase in the other. Equally, live weights, in the absence of adequate records, can be utilized to predict traits that are correlated with linear measurements.