东阿黑驴育种规划优化的研究

doi:10.16431/j.cnki.1671-7236.2021.10.018

Abstract

Abstract: Dong'e Black donkey was a new breed of skin and meat type as the basic group of Dezhou donkey. The aims of the present study was to explore the optimal combination of different breeding measures on the basis of the current breeding program, in order to establish a high-quality and efficient Dong'e Black donkey breeding system. Based on the production and breeding situation of Dong'e Black donkey, with selection index and gene flow methods, the ZPLAN software was used to analyze the breeding efficiency of current breeding program, and optimize the various factors affecting the breeding program of Dong'e Black donkey. The results showed that the genetic progress of the current breeding program was 271.78 ￥ per donkey and per year, the breeding profit was 1 123.70 ￥ per donkey and per year, and the current generation interval was 5.24 years. The improvement of each trait during the breeding period were as following:Weaning weight, 1.50 kg;18th months weight, 0.09 kg;First calving age, -0.02 days;Calving interval, -0.17 days;Skin production, 1.04 kg. The combination analysis of different levels of optimized factors showed:Based on the total herd size of base donkey population of 30 000, the proportion of breeding groups was 0.5, the service life of seed male donkey, test male donkey and breeding female donkey in breeding group was 1 year, the service life of seed female donkey was 2 years, and the service life of male and female donkey in production group was 1 year, the maximum genetic progress and breeding profits would be obtained, which were 320.40 ￥ per donkey and per year, 2 945.00￥ per donkey and per year. They were 17.9% and 162.0% higher than the current breeding programs. The current breeding program of Dong'e Black donkey had not reached the ideal breeding status, and more improvement was needed for it. After optimizing all the influencing factors, the maximum genetic progress and breeding profits could be obtained.

Key words: Dong'e Black donkey; breeding program; genetic progress; breeding profit

CLC Number:

S822

YANG Tao, CUI Ran, ZHANG Xinhao, YANG Li, WANG Min, LIU Yu, LING Yao, LI Haijing, ZHAO Chunjiang. Study on the Optimization of Breeding Plan for Dong'e Black Donkey[J]. China Animal Husbandry and Veterinary Medicine, 2021, 48(10): 3670-3681.

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Study on the Optimization of Breeding Plan for Dong'e Black Donkey

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