Comparative characteristics of commercial pig hybrids

To increase pork production and improve its quality, it is necessary to carry out genetic improvement of existing breeds and types of pigs, create new combinations of different breeds of pigs suitable for the use under the conditions of intensive technologies. To determine effectiveness of three-breed crossing using purebred and terminal boars at the final stage, 2 groups of crossbred sows (KB x L) of 5 heads each were formed. In the first group, the sow was inseminated with Yorkshire boar seed, in the second group with terminal boar seed (PIC337). According to the live weight of the nest at birth and weaning, higher rates were in the experimental group, when crossing F1 sows (CBhL) with terminal boars PIC337. The nest weight at birth was significantly higher in the experimental group compared to the control group by 1.8%. The average live weight of one piglet in the experimental group was 1.55 kg, which is 0.65% higher than in the sows of the control group. It was also found that young pigs obtained from crossing two-breed F1 sows (KB x L) with terminal boar PIC337 had higher fattening and meat qualities: they reached a live weight of 100 kg in 184 days with an average daily increase of 719 g, feed costs per 1 kg of increase - 3.13 feed units, fat thickness of 26.1 mm and the area of the "muscular eye" is 47.1 cm2. These indicators are higher compared with the indicators of offspring obtained from F1 sows (KB x L) and Yorkshire boar: 1,6%, 1,55%, 2,2%, 0,77% and 5.4%, respectively.