Articles | Volume 69, issue 2
https://doi.org/10.5194/aab-69-217-2026
https://doi.org/10.5194/aab-69-217-2026
Original study
 | 
09 Apr 2026
Original study |  | 09 Apr 2026

Genetic and non-genetic determinants of farrowing and lactation traits in multiparous sows under intensive management

Daniel González-Sánchez, José F. Vázquez-Armijo, Héctor H. Velázquez-Villalva, Benito Albarrán-Portillo, Germán Gómez-Tenorio, Nicolas Lopez-Villalobos, Xochitl F. De la Rosa-Reyna, and Gaspar M. Parra-Bracamonte

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Cited articles

Adi, Y. K., Boonprakob, R., Kirkwood, R. N., and Tummaruk, P.: Factors affecting birth weight and stillbirth in sows housed in a tropical environment, Reprod. Domest. Anim., 59, 1–13, https://doi.org/10.1111/rda.14500, 2024. 
Chakurkar, E. B., Sahu, A. R., Naik, S., H.B., C. K., and P.P., G.: Genetic evaluation of growth and reproductive performances of crossbred pigs reared under intensive system in tropical humid coastal climate, Trop. Anim. Health Prod., 53, 243, https://doi.org/10.1007/s11250-021-02677-4, 2021. 
Chansomboon, C., Elzo, M. A., Suwanasopee, T., and Koonawootrittriron, S.: Estimation of Genetic Parameters and Trends for Weaning-to-first Service Interval and Litter Traits in a Commercial Landrace-Large White Swine Population in Northern Thailand, Asian-Australas. J. Anim. Sci., 23, 543–555, https://doi.org/10.5713/ajas.2010.90379, 2010. 
Boonkum, W., Permthongchoochai, S., Chankitisakul, V., and Duangjinda, M.: Genetic strategies for enhancing litter size and birth weight uniformity in piglets, Frontiers in Veterinary Science, 12, 1512701. https://doi.org/10.3389/fvets.2025.1512701, 2025. 
Dekkers, J. C. M.: Multiple trait breeding programs with genotype-by-environment interactions based on reaction norms, with application to genetic improvement of disease resilience, Genet. Sel. Evol., 53, 93, https://doi.org/10.1186/s12711-021-00687-2, 2021. 
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Short summary
This research studied what affects the number and health of piglets in large-scale farms. It found that the year, the mother sow's age, and her weight at birth are major factors. Moving piglets between litters after birth (cross-fostering) also helps them grow better. While genetics play a role, good management practices are even more important. The best results come from combining careful genetic selection with excellent daily care, proper feeding, and a controlled environment for the animals.
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