A Bayesian analysis of the effect of selection for growth rate on growth curves in rabbits

被引:81
作者
Blasco, A
Piles, M
Varona, L
机构
[1] Univ Politecn Valencia, Dept Ciencia Anim, E-46071 Valencia, Spain
[2] IRTA, Unitat Cunicultura, Caldes de Montbui, Spain
[3] UdL IRTA, Lleida, Spain
关键词
growth curves; selection; rabbits; Bayesian analysis;
D O I
10.1051/gse:2002034
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
Gompertz growth curves were fitted to the data of 137 rabbits from control (C) and selected (S) lines. The animals came from a synthetic rabbit line selected for an increased growth rate. The embryos from generations 3 and 4 were frozen and thawed to be contemporary of rabbits born in generation 10. Group C was the offspring of generations 3 and 4, and group S was the contemporary offspring of generation 10. The animals were weighed individually twice a week during the first four weeks of life, and once a week thereafter, until 20 weeks of age. Subsequently, the males were weighed weekly until 40 weeks of age. The random samples of the posterior distributions of the growth curve parameters were drawn by using Markov Chain Monte Carlo (MCMC) methods. As a consequence of selection, the selected animals were heavier than the C animals throughout the entire growth curve. Adult body weight, estimated as a parameter of the Gompertz curve, was 7% higher in the selected line. The other parameters of the Gompertz curve were scarcely affected by selection. When selected and control growth curves are represented in a metabolic scale, all differences disappear.
引用
收藏
页码:21 / 41
页数:21
相关论文
共 27 条
[1]   GENETIC ARCHITECTURE OF GROWTH CURVE PARAMETERS IN CHICKENS [J].
BARBATO, GF .
THEORETICAL AND APPLIED GENETICS, 1991, 83 (01) :24-32
[2]   GROWTH ALLOMETRY IN RABBIT .2. THYMUS [J].
BARON, R ;
VEZINHET, A ;
CANTIER, J .
ANNALES DE BIOLOGIE ANIMALE BIOCHIMIE BIOPHYSIQUE, 1970, 10 (04) :535-&
[3]   A NOTE ON GROWTH-CURVES OF RABBIT LINES SELECTED ON GROWTH-RATE OR LITTER SIZE [J].
BLASCO, A ;
GOMEZ, E .
ANIMAL PRODUCTION, 1993, 57 :332-334
[4]  
Blasco A, 2001, J ANIM SCI, V79, P2023
[5]  
BLASCO A, 1990, P 4 WORLD C GEN APPL, V16, P362
[6]  
CHALONER K, 1988, BIOMETRIKA, V75, P651
[7]   GENETIC AND ENVIRONMENTAL ASPECTS OF THE GROWTH CURVE PARAMETERS IN BEEF-COWS [J].
DENISE, RSK ;
BRINKS, JS .
JOURNAL OF ANIMAL SCIENCE, 1985, 61 (06) :1431-1440
[8]  
FLAK P, 1983, P 2 INT C RABB MOD G, P75
[9]  
Gelfand A., 1992, Bayesian Stat, V4, P147
[10]  
Gelman A, 2013, BAYESIAN DATA ANAL, DOI DOI 10.1201/9780429258411