Otradnov PI, Osipova OS, Belous AA.

Animal Husbandry and Fodder Production. 2025. Vol. 108. No. 1. Р. 60-72.

doi:10.33284/2658-3135-108-1-60

Original article

Testing BLUP methodology for large white pigs selection

 

Petr I Otradnov1, Olesya S Osipova2, Anna A Belous3

1,2,3Federal Research Center for Animal Husbandry named after Academy Member L.K. Ernst, Dubrovitsy, Russia

1serionard@yandex.ru, https://orcid.org/0000-0002-1153-5815

2 olesa.117@mail.ru, https://orcid.org/0009-0006-2454-7379

3belousa663@gmail.com, https://orcid.org/ 0000-0001-7533-4281

 

Abstract. The article examines the convergence of BLUP-based (Best Linear Unbiased Prediction) estimates of economically important traits in Large White pigs using different biometric models. The results indicate that significant differences in model quality, reflected particularly in coefficients of determination, lead to considerable discrepancies in evaluation outcomes. For instance, the highest convergence was observed for the FCR (feed conversion ratio) trait: at the population level, the repeatability coefficient was  0.981,  with  average  rank  differences  for  the 20 most reliably evaluated individuals amounting to ∆ = -19.05. Meanwhile, the difference in the coefficients of determination of the models used was 6.2%. The lowest convergence was observed for the BWG (body weight gain) trait, where the repeatability coefficient was 0.720, and the rank difference reached ∆ = 119.55. The coefficients of determination for the models used to assess this trait differed by 27%, or 1.81 times. Such discrepancies under simulated conditions of limited availability of primary zootechnical accounting data underscore both the necessity of considering the full range of available variables affecting the variability of the evaluated trait and the importance of using the same set of variables to ensure comparability of results.

Keywords: pigs, Large White breed, BLUP, breeding value, meat productivity, fattening traits

Acknowledgments: the work was performed in accordance to the plan of research works for 2023-2025 L.K. Ernst Federal Research Center for Animal Husbandry (No. FGGN-2023-0002).

For citation: Otradnov PI, Osipova OS, Belous AA. Testing BLUP methodology for large white pigs selection. Animal Husbandry and Fodder Production. 2025;108(1):60-72. https://doi.org/10.33284/2658-3135-108-1-60

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Information about the authors:

Petr I Otradnov, Junior Researcher, Laboratory of Genetic Technologies in Aquatic and Agricultural Farms, Federal Research Center for Animal Husbandry named after Academy Member L.K. Ernst, Dubrovitsy 60, Podolsk Municipal District, Moscow Region, 142132, Russia, tel.: +7 (929) 613-14-75.

Olesya S Osipova, Junior Researcher, Laboratory of Genetic Technologies in Aquatic and Agricultural Farms, Federal Research Center for Animal Husbandry named after Academy Member L.K. Ernst, Dubrovitsy 60, Podolsk Municipal District, Moscow Region, 142132, Russia, tel.: +7 (926) 153-61-27.

Anna A Belous, Cand. Sci. (Biology), Senior Research, Head of Laboratory Genetic Technologies in Aquatic and Agricultural Farms, Federal Research Center for Animal Husbandry named after Academy Member L.K. Ernst, Dubrovitsy 60, Podolsk Municipal District, Moscow Region, 142132, Russia, tel.: +7 (985) 040-40-28.

The article was submitted 10.01.2025; approved after reviewing 21.02.2025; accepted for publication 17.03.2025.

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