Zaalberg Roos Marina, Nielsen Hanne Marie, Sørensen Anders Christian, Chu Thinh T, Jensen Just, Villumsen Trine Michelle
Center for Quantitative Genetics and Genomics, Aarhus University, P.O. Box 50, 8830 Tjele, Denmark.
Danish Agriculture and Food Council, Axeltorv 3, 1609 Copenhagen, Denmark.
Animals (Basel). 2022 Feb 12;12(4):455. doi: 10.3390/ani12040455.
Current organic pig-breeding programs use pigs from conventional breeding populations. However, there are considerable differences between conventional and organic production systems. This simulation study aims to evaluate how the organic pig sector could benefit from having an independent breeding program. Two organic pig-breeding programs were simulated: one used sires from a conventional breeding population (conventional sires), and the other used sires from an organic breeding population (organic sires). For maintaining the breeding population, the conventional population used a conventional breeding goal, whereas the organic population used an organic breeding goal. Four breeding goals were simulated: one conventional breeding goal, and three organic breeding goals. When conventional sires were used, genetic gain in the organic population followed the conventional breeding goal, even when an organic breeding goal was used to select conventional sires. When organic sires were used, genetic gain followed the organic breeding goal. From an economic point of view, using conventional sires for breeding organic pigs is best, but only if there are no genotype-by-environment interactions. However, these results show that from a biological standpoint, using conventional sires biologically adapts organic pigs for a conventional production system.
当前的有机生猪育种计划使用来自传统育种种群的猪。然而，传统生产系统和有机生产系统之间存在相当大的差异。本模拟研究旨在评估有机生猪产业如何能够从拥有一个独立的育种计划中受益。模拟了两个有机生猪育种计划：一个使用来自传统育种种群的公猪（传统公猪），另一个使用来自有机育种种群的公猪（有机公猪）。为了维持育种种群，传统种群采用传统育种目标，而有机种群采用有机育种目标。模拟了四个育种目标：一个传统育种目标和三个有机育种目标。当使用传统公猪时，即使使用有机育种目标来选择传统公猪，有机种群中的遗传进展也遵循传统育种目标。当使用有机公猪时，遗传进展遵循有机育种目标。从经济角度来看，使用传统公猪来繁育有机猪是最佳选择，但前提是不存在基因型与环境的互作。然而，这些结果表明，从生物学角度来看，使用传统公猪会使有机猪在生物学上适应传统生产系统。
