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Position: Home > Articles > Genetic Parameters Estimation of the Reproductive Traits in Police Dogs Journal of Anhui Agricultural Sciences 2022,50 (2) 95-98

警犬繁殖性状的遗传参数评估

作  者:
李静;万九生;陈超;邓卫东;黎立光;徐虎;程鲁光;曹剑
单  位:
公安部警犬技术重点实验室;公安部昆明警犬基地;云南农业大学动物科技学院
关键词:
昆明犬;马里努阿犬;繁殖性状;遗传力;遗传参数
摘  要:
对昆明犬、马里努阿犬两大警犬品种的总产仔数(TNB)、产活仔数(NBA)、断奶成活数(NW)、初生窝重(LBW)的遗传参数进行估计,同时对各性状的方差组分和遗传力进行了分析。结果表明:昆明犬和马里努阿犬繁殖性能差异不显著(P>0.05),胎次对犬初生窝重的影响达到显著水平(P<0.05),但胎次对犬其他繁殖性状的影响均不显著(P>0.05)。固定效应中,出生场、年份、产仔季节对繁殖性状的影响均不显著(P>0.05)。昆明犬、马里努阿犬各繁殖性状的遗传力均为0.071~0.128,属于低遗传力。该研究结果为警犬繁育提供了核心种犬的遗传基础评估,也为犬科学繁育制订合理育种方案提供了参考。
译  名:
Genetic Parameters Estimation of the Reproductive Traits in Police Dogs
作  者:
LI Jing;WAN Jiu-sheng;CHEN Chao;College of Animal Science and Technology, Yunnan Agricultural University;Kunming Police Dog Base, Ministry of Public Security;Key Laboratory of Police Dog Technology, Ministry of Public Security;
关键词:
Kunming Dog;;Malinois Dog;;Reproductive traits;;Heritability;;Genetic parameters
摘  要:
The total litter size(TNB),the number born alive(NBA),the number of live weaning(NW),and the total litter weight at birth(LBW) of two police dog breeds(Kunming Dog, Malinois Dog) were estimated, and the variance components and heritability of each trait were analyzed.The results showed that there was no significant difference in the reproductive performance between Kunming Dog and Malinois Dog(P>0.05),and the effects of different parity on the total litter weight at birth(LBW) were significant(P<0.05),while the effects of different parity on other reproductive traits were not significant(P>0.05).In the fixed effect, the effects of birthplace, year and farrowing season on the reproductive traits were not significant(P>0.05).The heritability of each reproductive trait of Kunming Dog and Malinois Dog was 0.071-0.128,which belonged to the range of low heritability.The research results provided the evaluation of the genetic basis of core breed dogs for police dog breeding, and provided references for formulating reasonable breeding programs for the scientific breeding of police dogs.

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