Genetic parameters and genetic trends in the Chinese x European Tiameslan composite pig line. I. Genetic parameters.
Genetic parameters and genetic trends in the Chinese x European Tiameslan composite pig line. I. Genetic parameters.
复制标题
DOI:
10.1186/1297-9686-32-1-41
复制
发表时间:
2000-01
期刊:
影响因子:
--
通讯作者:
Naveau J
中科院分区:
文献类型:
--
作者:
Zhang S;Bidanel JP;Burlot T;Legault C;Naveau J
Genetic parameters of body weight at 4 (W4 w), 8 (W8 w) and 22 (W22 w) weeks of age, days from 20 to 100 kg (DT), average backfat thickness at 100 kg (ABT), teat number (TEAT), number of good teats (GTEAT), total number of piglets born (TNB), born alive (NBA) and weaned (NW) per litter, and birth to weaning survival rate (SURV) were estimated in the Chinese × European Tiameslan composite line using restricted maximum likelihood methodology applied to a multiple trait animal model. Performance data from a total of 4 881 males and 4 799 females from 1 341 litters were analysed. Different models were fitted to the data in order to estimate the importance of maternal effects on production traits, as well as genetic correlations between male and female performance. The results showed the existence of significant maternal effects on W4w, W8w and ABT and of variance heterogeneity between sexes for W22w, DT, ABT and GTEAT. Genetic correlations between sexes were 0.79, 0.71 and 0.82, respectively, for W22w, DT and ABT and above 0.90 for the other traits. Heritability estimates were larger than (ABT and TEAT) or similar to (other traits) average literature values. Some genetic antagonism was evidenced between production traits, particularly W4w, W8w and ABT, and reproductive traits.
登录
查看更多内容
影响因子:
4.1
作者:
MEYER, K
通讯作者:
MEYER, K
DOI:
10.1016/0301-6226(86)90015-1
发表时间:
1986-06-01
期刊:
LIVESTOCK PRODUCTION SCIENCE
影响因子:
--
作者:
MERKS, JWM
通讯作者:
MERKS, JWM
影响因子:
3.3
作者:
BRYNER, SM;MABRY, JW;KRIESE, LA
通讯作者:
KRIESE, LA
影响因子:
3.3
作者:
JOHNSON, RK
通讯作者:
JOHNSON, RK
影响因子:
4.1
作者:
LEGAULT, C;CARITEZ, JC
通讯作者:
CARITEZ, JC