Published in Scientific Papers. Series D. Animal Science, Vol. LXVIII, Issue 2
Written by Mykola KREMEZ, Oleksandr MYKHALKO, Mykola POVOD, Bogdan GUTYJ, Oleksandr TSERENIUK, Natalia KRYGINA, Inna KEPKALO, Mykhailo KUZMENKO, Kostiantyn MAKHNO
The article analyzed growth intensity, feed efficiency, fattening costs and profitability of pigs of maternal, paternal and hybrid genotypes. The study found that the pigs of the synthetic parental line outperformed their maternal counterparts in daily and absolute gains by 25.1 to 28.8% and in final weight by 24.9 to 28.9% and reached 120 kg, 14.6 to 16.5% earlier due to index selection for fattening traits. These pigs also had 13.3-13.8% better feed conversion and 80.4-92.5% higher total fattening index, albeit with a slightly lower survival rate (0.04-0.73 %). Hybrid piglets showed 17.6-21.2% higher gains, reached 120 kg 10.2-11.5% earlier and had a 16.4-18.8% higher final weight. They also had 2.2 to 3.4% better feed conversion, resulting in 41.7 to 51.7% higher fattening indices than purebred dam genotypes, with no clear survival trend. The results underline the advantages of hybridization and targeted selection to improve growth performance and feed efficiency in pig production.
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