Acknowledgement
The study was performed as a part of the project "Selection for adaptation and genetic improvement of production and reproduction traits in Danish Landrace and Yorkshire pigs in South Vietnam," which was supported by the Ministry of Agriculture and Rural Development, Vietnam. We thank the leaders and technicians of the Institute of Animal Sciences for Southern Vietnam, Binh Minh National Pig Breeding Farms for providing optimal conditions for this research. We also express gratitude to Eildert Groeneveld for providing PEST and VCE6 software.
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