Genetic correlations between male reproductive traits and growth traits in growth performance tested Duroc, Landrace and Yorkshire breed boars

被引：16
作者：
Chang, Hsiu-Luan [2 ]
Lai, Yung-Yu [1 ]
Wu, Ming-Che [1 ]
Sasaki, Osamu [3 ]
机构：
[1] Livestock Res Inst, Tainan, Taiwan
[2] Natl Pingtung Univ Sci & Technol, Dept Anim Sci, Pingtung 91201, Taiwan
[3] NARO, Div Anim Breeding & Reprod, Inst Livestock & Grassland Sci, Tsukuba, Ibaraki, Japan
来源：
ANIMAL SCIENCE JOURNAL | 2017年 / 88卷 / 09期
关键词：
boar; genetic parameter; growth; male trait; tropics; MEAT QUALITY TRAITS; SEMEN TRAITS; LARGE WHITE; PARAMETERS; BACKFAT; GAIN; PIGS;
D O I：
10.1111/asj.12776
中图分类号：
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号：
0905 ;
摘要：
Male-related traits at 180-225 days of age for 6464 grow-finish performance tested boars were measured from 2000 to 2016. Heritability estimates and genetic correlations among average daily gain, feed efficiency, back fat thickness, teat counts, mounting libido, leg locomotion, penile length, sperm motility, sperm concentration and total sperm counts were estimated by VCE software using a multiple traits animal model in each breed. Growth-tested boars had heritability estimates of male reproductive traits in 0.34-0.56 of teat counts, 0.12-0.20 of libido, 0.08-0.12 of locomotion, 0.17-0.58 of penile length, 0.04-0.21 of sperm motility and concentration, 0.17-0.30 of total sperm counts. Total sperm counts were genetically positively correlated with penile length in all breeds. Boars with higher total sperm counts had genetically better libido and locomotion. Genetic correlation between feed efficiency and sperm motility and feed efficiency and sperm concentration were positive in Duroc and negative in Landrace and Yorkshire. Sperm motility and concentration were genetically negatively correlated with average daily gain in Yorkshire. Male reproductive traits of imported breeds could be improved with care in the change of growth traits, especially in Yorkshire.
引用
收藏
页码：1258 / 1268
页数：11
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