应用贝叶斯方法评估7周龄蛋鸡体质量
|
摘要
为了评估蛋鸡早期体质量,将母体遗传效应列入动物模型随机效应、遗传组协变量列入动物模型固定效应,应用贝叶斯方法估计遗传参数。试验鸡来自白莱航鸡与绿壳蛋鸡F2资源群体,包括亲代、F1代和F2代总计5 538只。经数据整理,去除翅号重复、性别不明、3倍标准差之外个体记录。采用MCMCglmm软件包以贝叶斯方法剖分7周龄蛋鸡体质量表型方差。遗传模型固定效应包括品种、世代效应及遗传组协变量;蛋鸡资源群体7周龄体质量加性遗传力为0.36(95%置信区间:0.27～0.46),母体遗传力为0.05(95%置信区间:0.03～0.07)。蛋鸡F2资源群体遗传评估时应考虑遗传组效应的影响;母体遗传效应影响7周龄蛋鸡体质量,在进行配套系选育时应考虑母体遗传效应的利用。
This study aimed to estimate the genetic parameters of early body weight using Bayesian method with maternal genetic and genetic group effects embedded on the animal model.The data collected from a F2 population,i.e.White Leghorn reciprocally crossed with the blue eggshell chickens.The number of fowls,com?posed of parents,F1 and F2 generations,were 5 538.The data clean included:1)removing unknown sex re?cords;2)removing outliers beyond three standard deviations;3)removing duplicated records.The variance components of body weight on the 7 th week were dissected with Bayesian method using MCMCglmm package.The animal model should contain breed,generation and genetic group as the fixed effects.The additive heritabil?ity of 7?weeks?old body weight was 0.36(95%CI:0.27-0.46),and maternal heritability was 0.05(95%CI:0.03-0.07).Genetic evaluation on the early body weight for the layer should include the genetic group effect.The ma?ternal effect had an influence on 7?weeks?old body weight.In the future,it is better to take the maternal effect in?to consideration during selection of synthetic lines.
This study aimed to estimate the genetic parameters of early body weight using Bayesian method with maternal genetic and genetic group effects embedded on the animal model.The data collected from a F2 population,i.e.White Leghorn reciprocally crossed with the blue eggshell chickens.The number of fowls,com?posed of parents,F1 and F2 generations,were 5 538.The data clean included:1)removing unknown sex re?cords;2)removing outliers beyond three standard deviations;3)removing duplicated records.The variance components of body weight on the 7 th week were dissected with Bayesian method using MCMCglmm package.The animal model should contain breed,generation and genetic group as the fixed effects.The additive heritabil?ity of 7?weeks?old body weight was 0.36(95%CI:0.27-0.46),and maternal heritability was 0.05(95%CI:0.03-0.07).Genetic evaluation on the early body weight for the layer should include the genetic group effect.The ma?ternal effect had an influence on 7?weeks?old body weight.In the future,it is better to take the maternal effect in?to consideration during selection of synthetic lines.
引文
[1]Renema R A,Rustad M E,Robinson F E.Implications of changes to commercial broiler and broiler breeder body weighttargets over the past 30 years[J].World′s Poultry Science Journal,2007,63(3):457-472.
[2]Maniatis G,Demiris N,Kranis A,et al. Model comparison and estimation of genetic parameters for body weight incommercial broilers[J].Canadian Journal of Animal Science,2013,93(1):67-77.
[3]Koerhuis A N M,Mckay J C.Restricted maximum likelihood estimation of genetic parameters for egg production traits inrelation to juvenile body weight in broiler chickens[J].Livestock Production Science,1996,46(2):117-127.
[4]Niknafs S,Nejati-javaremi A,Mehrabani-yeganeh H,et al. Estimation of genetic parameters for body weight and eggproduction traits in Mazandaran native chicken[J].Tropical Animal Health and Production,2012,44(7):1437-1443.
[5]窦套存,王克华,曲亮,等.如皋黄鸡42日龄体重母体遗传效应评估[J].山西农业大学学报(自然科学版),2014,34(6):511-517.Dou T C,Wang K H,Qu L,et al.Maternal genetic effects of body weight in Rugao Yellow Chicken[J].Journal of Shanxi Ag?ricultural University(Natural Science Edition),2014,34(6):511-517.
[6]Hadfield J D.MCMC methods for multi-response generalized linear mixed models:the MCMCglmm r package[J].Journal ofStatistical Software,2010,33(2):22.
[7]窦套存,王克华,曲亮,等.基于个体动物模型分析蛋鸡蛋壳厚度遗传参数[J].扬州大学学报(农业与生命科学版),2016,37(2):31-35.Dou T C,Wang K H,Qu L,et al.Estimation of genetic parameters for eggshell thickness in layer with animal models[J].Journal of Yangzhou University(Agricultural and Life Science Edition),2016,37(2):31-35.
[8]郭军,王克华,曲亮,等.应用随机回归模型分析蛋鸡蛋黄质量遗传参数[J].南京农业大学学报,2016,39(1):145-149.Guo J,Wang K H,Qu L,et al.Genetic parameters for yolk weight in resource population with random regression model[J].Journal of Nanjing Agricultural University,2016,39(1):145-149.
[9]Wolak M E,Reid J M.Accounting for genetic differences among unknown parents in microevolutionary studies:how toinclude genetic groups in quantitative genetic animal models[J].Journal of Animal Ecology,2017,86(1):7-20.
[10]Wolak M E.Nadiv:an R package to create relatedness matrices for estimating non-additive genetic variances in animalmodels[J].Methods in Ecology and Evolution,2012,3(5):792-796.
[11]Westell R A,Quaas R L,Van Vleck L D.Genetic groups in an animal model[J].Journal of Dairy Science,1988,71(5):1310-1318.
[12]Shiotsuki L,Cardoso F F,Silva I V J A,et al.Comparison of a genetic group and unknown paternity models for growth traitsin Nellore cattle1[J].Journal of Animal Science,2013,91(11):5135-5143.
[13]Leeds T D,Silverstein J T,Weber G M,et al.Response to selection for bacterial cold water disease resistance in rainbowtrout[J].Journal of Animal Science,2010,88(6):1936-1946.
[14]Iraqi M M,García M L,Khalil M H,et al.Evaluation of milk yield and some related maternal traits in a crossbreeding projectof Egyptian Gabali breed with Spanish V?line in rabbits[J].Journal of Animal Breeding and Genetics,2010,127(3):242-248.
[15]Hatungumukama G,Detilleux J.Estimation of genetic and crossbreeding parameters for daily milk yield of Ayrshire×Sahiwal×Ankole crossbred cows in Burundi[J].Livestock Science,2009,122(2):359-362.
[16]Mcelroy J P,Kim J J,Harry D E,et al.Identification of trait loci affecting white meat percentage and other growth andcarcass traits in commercial broiler chickens[J].Poultry Science,2006,85(4):593-605.
[17]Ghorbani S,Tahmoorespur M,Maghsoudi A,et al.Estimates of(co)variance components for production and reproductiontraits with different models in Fars native fowls[J].Livestock Science,2013,151(2):115-123.
[18]Saatci M,Omed H,Ap Dewi I.Genetic parameters from univariate and bivariate analyses of egg and weight traits in Japanesequail[J].Poultry Science,2006,85(2):185-190.
[2]Maniatis G,Demiris N,Kranis A,et al. Model comparison and estimation of genetic parameters for body weight incommercial broilers[J].Canadian Journal of Animal Science,2013,93(1):67-77.
[3]Koerhuis A N M,Mckay J C.Restricted maximum likelihood estimation of genetic parameters for egg production traits inrelation to juvenile body weight in broiler chickens[J].Livestock Production Science,1996,46(2):117-127.
[4]Niknafs S,Nejati-javaremi A,Mehrabani-yeganeh H,et al. Estimation of genetic parameters for body weight and eggproduction traits in Mazandaran native chicken[J].Tropical Animal Health and Production,2012,44(7):1437-1443.
[5]窦套存,王克华,曲亮,等.如皋黄鸡42日龄体重母体遗传效应评估[J].山西农业大学学报(自然科学版),2014,34(6):511-517.Dou T C,Wang K H,Qu L,et al.Maternal genetic effects of body weight in Rugao Yellow Chicken[J].Journal of Shanxi Ag?ricultural University(Natural Science Edition),2014,34(6):511-517.
[6]Hadfield J D.MCMC methods for multi-response generalized linear mixed models:the MCMCglmm r package[J].Journal ofStatistical Software,2010,33(2):22.
[7]窦套存,王克华,曲亮,等.基于个体动物模型分析蛋鸡蛋壳厚度遗传参数[J].扬州大学学报(农业与生命科学版),2016,37(2):31-35.Dou T C,Wang K H,Qu L,et al.Estimation of genetic parameters for eggshell thickness in layer with animal models[J].Journal of Yangzhou University(Agricultural and Life Science Edition),2016,37(2):31-35.
[8]郭军,王克华,曲亮,等.应用随机回归模型分析蛋鸡蛋黄质量遗传参数[J].南京农业大学学报,2016,39(1):145-149.Guo J,Wang K H,Qu L,et al.Genetic parameters for yolk weight in resource population with random regression model[J].Journal of Nanjing Agricultural University,2016,39(1):145-149.
[9]Wolak M E,Reid J M.Accounting for genetic differences among unknown parents in microevolutionary studies:how toinclude genetic groups in quantitative genetic animal models[J].Journal of Animal Ecology,2017,86(1):7-20.
[10]Wolak M E.Nadiv:an R package to create relatedness matrices for estimating non-additive genetic variances in animalmodels[J].Methods in Ecology and Evolution,2012,3(5):792-796.
[11]Westell R A,Quaas R L,Van Vleck L D.Genetic groups in an animal model[J].Journal of Dairy Science,1988,71(5):1310-1318.
[12]Shiotsuki L,Cardoso F F,Silva I V J A,et al.Comparison of a genetic group and unknown paternity models for growth traitsin Nellore cattle1[J].Journal of Animal Science,2013,91(11):5135-5143.
[13]Leeds T D,Silverstein J T,Weber G M,et al.Response to selection for bacterial cold water disease resistance in rainbowtrout[J].Journal of Animal Science,2010,88(6):1936-1946.
[14]Iraqi M M,García M L,Khalil M H,et al.Evaluation of milk yield and some related maternal traits in a crossbreeding projectof Egyptian Gabali breed with Spanish V?line in rabbits[J].Journal of Animal Breeding and Genetics,2010,127(3):242-248.
[15]Hatungumukama G,Detilleux J.Estimation of genetic and crossbreeding parameters for daily milk yield of Ayrshire×Sahiwal×Ankole crossbred cows in Burundi[J].Livestock Science,2009,122(2):359-362.
[16]Mcelroy J P,Kim J J,Harry D E,et al.Identification of trait loci affecting white meat percentage and other growth andcarcass traits in commercial broiler chickens[J].Poultry Science,2006,85(4):593-605.
[17]Ghorbani S,Tahmoorespur M,Maghsoudi A,et al.Estimates of(co)variance components for production and reproductiontraits with different models in Fars native fowls[J].Livestock Science,2013,151(2):115-123.
[18]Saatci M,Omed H,Ap Dewi I.Genetic parameters from univariate and bivariate analyses of egg and weight traits in Japanesequail[J].Poultry Science,2006,85(2):185-190.