蛋鸡资源群体产蛋性状遗传参数分析

doi:10.16036/j.issn.1000-2650.2019.02.012

摘要/Abstract

摘要： 【目的】利用平均信息约束最大似然算法（AIREML）分析蛋鸡资源群体产蛋总重、产蛋数、40周龄蛋重和开产性状遗传参数,剖析产蛋性状遗传参数变化规律。【方法】以白莱航鸡与东乡绿壳蛋鸡为基本素材,依照F₂设计组建资源群体,包括亲代、F₁代和F₂代总计2 326只母鸡。每一世代采集开产性状数据,每日记录产蛋信息。蛋鸡32~60周龄采集蛋重数据19 825条。以多性状动物模型评估遗传方差、残差和表型方差。【结果】①品种、世代对产蛋性状有着重要影响,将其列入固定效应;②32~60周龄产蛋总重遗传力为0.28±0.05,累积产蛋数遗传力为0.33±0.05,40周龄蛋重遗传力为0.58±0.05,开产日龄遗传力为0.35±0.05,开产体重遗传力为0.65±0.05,开产蛋重遗传力为0.44±0.06;③产蛋总重与产蛋数遗传相关系数为0.78±0.04,与40周龄蛋重遗传相关系数为0.27±0.10,与开产日龄遗传相关为-0.41±0.12。【结论】选择产蛋总重性状,宜以个体选择结合家系选择方能有效获取遗传进展。

关键词: 产蛋总重, 产蛋数, 开产日龄, 遗传力, 遗传相关, 蛋鸡

Abstract: 【Objective】 This study was to assess genetic parameters on egg mass, egg number, egg size and traits at the first egg with the Average Information REML method (AIREML), and depict the dynamic changes of the genetic parameters. 【Method】 The animals composed of 2 326 hens including the parent, F₁ and F₂ flocks from a resource population, which crossbred between blue eggshelled chicken and white Leghorn. The dataset included individual AFE and daily egg record on each generation. The data set were made of 19 825 items collected every four weeks thorough 32 wks to 60 wks. (Co) variance components were estimated with the multivariate animal model. 【Result】 ①factors of breeds, generations should be included in the fix effects because of their important role in egg production variations; ②for resource population, heritability on egg mass (EM), egg number (EN), egg weight on 40 weeks (EW40), age at the first egg (AFE), body weight at the first egg and egg weight at the first egg (EW1) was 0.28±0.05, 0.33±0.05, 0.58±0.05, 0.35±0.05, 0.65±0.05 and 0.44±0.06, respectively; ③the genetic correlation between egg mass and EN, EW40 and AFE was 0.78±0.04, 0.27±0.10 and -0.41±0.12, respectively. 【Conclusion】 During selecting on egg mass, individual selection associated with family selection were recommended to obtain genetic gains.

Key words: egg mass, egg production, AFE, heritability, genetic correlation, layer

中图分类号:

S831.2

郭军, 曲亮, 窦套存, 胡玉萍, 沈曼曼, 王星果, 王克华. 蛋鸡资源群体产蛋性状遗传参数分析[J]. 四川农业大学学报, 2019, 37(02): 227-231.

GUO Jun, QU Liang, DOU Taocun, HU Yuping, SHEN Manman, WANG Xingguo, WANG Kehua. Genetic Parameters Estimated for Egg Production Traits in Layer Resource Population[J]. Journal of Sichuan Agricultural University, 2019, 37(02): 227-231.

参考文献

[1] MUIR W M, AGGREY S E.Poultry genetics, breeding and biotechnology[M]. Wallingford, Oxfordshire, UK: CABI, 2003.
[2] BOHREN B B.Genetic gains in annual egg production from selection on early part-records[J]. World's Poultry Science Journal, 2007, 26(3): 647-657.
[3] RIBEIRO J C, DA SILVA L P, SOUSA M F, et al. Genetic evaluation for egg mass in partial periods and complete period in meat quails[J]. Revista Brasileira De Zootecnia-Brazilian Journal of Animal Science, 2012, 41(5): 1158-1162.
[4] YANG N.Comparison of three selection schemes for annual egg production in chickens[C]. 5th World Congress on Genetetics Applied to Livestock Production. Gulph, Ontorio. 1994: 13-16.
[5] 侯卓成, 徐桂云, 宁中华, 等. 蛋鸡产蛋总重的估计方法比较[J]. 中国家禽, 2003 (21): 11-13.
[6] MIZRAK C, YENICE E, CAN M, et al.Effects of dietary boron on performance, egg production, egg quality and some bone parameters in layer hens[J]. South Afr J Anim Sci, 2010, 40(3): 257-264.
[7] ATTIA Y A, ABDALAH A A, ZEWEIL H S, et al.Effect of inorganic or organic selenium supplementation on productive performance, egg quality and some physiological traits of dual-purpose breeding hens[J]. Czech J Anim Sci, 2010, 55(11): 505-519.
[8] ABDELQADER A, WOLLNY C B A, GAULY M. Characterization of local chicken production systems and their potential under different levels of management practice in Jordan[J]. Trop Anim Health Prod, 2007, 39(3): 155-164.
[9] XUAN K, PHUONG T N L, TIEN P D, et al. In situ and ex situ assessment of a native Hungarian chicken breed for its potential conservation and adaptation in the subtropics[J]. Anim Prod Sci, 2017, 57(5): 975-980.
[10] KHAWAJA T, KHAN S H, MUKHTAR N, et al.Comparative study of growth performance, egg production, egg characteristics and haemato-biochemical parameters of Desi, Fayoumi and Rhode Island Red chicken[J]. J Appl Anim Res, 2012, 40(4): 273-283.
[11] JORJANI H, LILJEDAHL L-E, ENGSTR M G, et al.Scandinavian selection and crossbreeding experiment with laying hens: V. specialised compared with index selection for two genetically antagonistic traits in laying hens[J]. Acta Agriculturae Scandinavica, Section A - Animal Science, 1993, 43(1): 23-34.
[12] SEWALEM A, JOHANSSON K, CARLGREN A B, et al.Are reproductive traits impaired by selection for egg production in hens?[J]. J Anim Breed Genet, 1998, 115(4): 281-297.
[13] SAVAS T, PREISINGER R, ROHE R, et al.Effect of inbreeding on production traits and their genetic parameters in laying hens[J]. Arch Geflugelkd, 1999, 63(6): 246-251.
[14] NIKNAFS S, NEJATI-JAVAREMI A, MEHRABANI-YEGANEH H, et al.Estimation of genetic parameters for body weight and egg production traits in Mazandaran native chicken[J]. Trop Anim Health Prod, 2012, 44(7): 1437-1443.
[15] MEYER K.WOMBAT-A tool for mixed model analyses in quantitative genetics by restricted maximum likelihood (REML)[J]. Journal of Zhejiang University SCIENCE B, 2007, 8(11): 815-821.
[16] ROFF D A.A centennial celebration for quantitative genetics[J]. Evolution, 2007, 61(5): 1017-1032.
[17] HILL W G.Applications of population genetics to animal breeding, from wright, fisher and lush to genomic prediction[J]. Genetics, 2014, 196(1): 1-16.
[18] WOLC A, LISOWSKI M, HILL W, et al.Genetic heterogeneity of variance in production traits of laying hens[J]. British Poultry Science, 2011, 52(5): 537-540.
[19] SZYDŁOWSKI M, SZWACZKOWSKI T. Bayesian segregation analysis of production traits in two strains of laying chickens[J]. Poultry Science, 2001, 80(2): 125-131.
[20] CHEN C, TIXIER-BOICHARD M.Correlated responses to long-term selection for clutch length in dwarf brown-egg layers carrying or not carrying the naked neck gene[J]. Poultry Science, 2003, 82(5): 709-720.
[21] KAMALI M, GHORBANI S, MORADI SHARBABAK M, et al.Heritabilities and genetic correlations of economic traits in Iranian native fowl and estimated genetic trend and inbreeding coefficients[J]. British Poultry Science, 2007, 48(4): 443-448.
[22] GHORBANI S, TAHMOORESPUR M, MAGHSOUDI A, et al.Estimates of (co) variance components for production and reproduction traits with different models in Fars native fowls[J]. Livestock Science, 2013, 151(2/3): 115-123.
[23] SANG B D, KONG H S, KIM H K, et al.Estimation of genetic parameters for economic traits in Korean native chickens[J]. Asian Australasian Journal of Animal Sciences, 2006, 19(3): 319.