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| 非洲猪瘟疫情下三元母猪轮回杂交繁育策略分析 |
| Analysis on strategy of ternary sows'rotational crossbreeding under the African swine fever epidemic |
| 投稿时间：2020-09-07 |
| DOI： |
| 中文关键词: 三元母猪 回交 轮回杂交 繁育策略 |
| 英文关键词:Ternary sow Backcross Rotational crossing Breeding strategies |
| 基金项目:山东省现代农业产业技术体系生猪创新团队建设专项（SDAIT-08-02），山东省农业良种工程重大课题（2019LZGC019），山东省重点研发计划项目（2016GNC111018）资助 |
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| 中文摘要: |
| 非洲猪瘟导致能繁母猪产能断崖式下降，二元母猪价格居高不下，产能严重不足，而频繁引种不利于疫情防控，这给我国养猪业带来了前所未有的挑战。为快速恢复生猪产能，三元商品猪被迫留为种用；然而，三元母猪繁殖性能较差，如果选留、选配等管理措施不当会进一步降低其繁殖性能。文章针对这些问题介绍了非洲猪瘟对我国养猪业的影响，重点分析了杂种母猪的利用原理以及三元母猪的轮回杂交闭群繁育选配策略，期望实现三元母猪的种用价值最大化，提高商品猪养殖的经济效益，促进生猪产业的可持续性发展。 |
| 英文摘要: |
| As a result of African swine fever (ASF), the reproductive capacity of sows has a precipitous drop, the price of binary sows remains high, and the production capacity seriously falls behind. Frequent introduction of sows is not conducive to epidemic prevention and control, which brings unprecedented challenges to China's pig industry. In order to restore pig production capacity quickly, ternary commercial pigs were forced to be reserved for breeding purposes; However, sows have poor reproductive performance, and improper management measures such as selection and mating will further reduce their reproductive performance. In view of these problems, this paper introduces the impact of ASF on China's pig industry, and analyzes the utilization principle of the cross sows and the strategy about selection of ternary sows' rotational crossbreeding in a closed group, to expect to realize the maximization of the breeding value of the ternary sow, improve the economic benefi ts of commercial pig breeding, and promote the sustainable development of pig industry. |
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