INBREEDING IN THE ITALIAN HAFLINGER HORSE

被引：36

作者：

GANDINI, GC ^{[1
]}

BAGNATO, A ^{[1
]}

MIGLIOR, F ^{[1
]}

PAGNACCO, G ^{[1
]}

机构：

[1] CNR,IST DIFESA & VALORIZZAZIONE GERMOPLASMA ANIM,I-20133 MILAN,ITALY

来源：

JOURNAL OF ANIMAL BREEDING AND GENETICS-ZEITSCHRIFT FUR TIERZUCHTUNG UND ZUCHTUNGSBIOLOGIE | 1992年 / 109卷 / 06期

关键词：

D O I：

10.1111/j.1439-0388.1992.tb00424.x

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

We analysed inbreeding and coancestry in the registered Italian Haflinger horse. Average inbreeding from 1.21 % of 1925-33 increased to 6.59 % in 1979-87. The presence of centres that own stallions that are distributed over the district of their jurisdiction during the mating season results in clusters of genetic correlations and deviation from panmixia. Current inbreeding within districts is low and often we observe avoidance of consanguineous mating. The high observed reproductive heterogeneity, in particular among males, suggests the use of Ne equations that do not assume Poisson distributed fertility. Height at wither and girth, measured on 4,736 horses, decreased significantly (P < 0.001) of respectively 1.1 and 2.9 cm with 10 % increases in the inbreeding coefficient.

引用

页码：433 / 443

页数：11