The article presents the results of research on indicators of own productivity of pigs and reproductive qualities of sows of different breeds and breeding value, as well as calculates the economic efficiency of research results. We studied the pigs of large white breed and landrace breed. During our research, we evaluated the piglets live weight at birth, weight on second and fourth months, average daily and relative live weight, formation intensity, growth uniformity index and growth stress index, multiplicity, high fertility, milk yield and nest weight at the time of weaning at the age of 28-32 days. The index of alignment (homogeneity) of the sow nest by live weight of piglets at birth was calculated according to Halak (2012), selection index of sow reproductive qualities (SIRQS) – due to Tserenyuk (2014). The economic efficiency of the results was calculated according to the indicator “nest weight at weaning time, kg”. We established that the pigs of large white breed and Landrace breed belong to the first class and elite class in terms of their own productivity. Significant differences between animals of these breeds were established by live weight at birth, two-month and four-month age, average daily and relative gains in live weight during the period of control rearing. The difference between the groups in terms of integrated growth rates (formation intensity, growth stress index, growth uniformity index) ranged from 1.57 to 16.20 %. Analysis of the data shows that sows of great white breeds outnumbered peers of Landrace breed in terms of fertility by 0.5 goals, milk yield - by 3.8 kg, breeding index of reproductive qualities of sows (SIRQS) – by 1.88. Landrace sows were characterised by higher fertility rates (by 0.12 kg), nest weight at weaning at the age of 28-32 days (by 5.3 kg) and safety of piglets before weaning (by 3.5%). The maximum increase in additional products was obtained for sows of large white breed and Landrace class M+ according to the selection index of reproductive qualities of sows (SIRQS) and these were 16.49–6.23 %, and its value is 412.22 and 166.83 UAH more in accordance.
Key words: pigs; breed; own productivity; ontogenesis; sow; reproductive qualities; nest uniformity; index; economic efficiency
References
Balatsky, V. M. (2016). Association of ESR1 locus with reproductive traits of sows of large white and myrgorod rocks. Breeding and Genetics of Animals, 52, 150–158 (in Ukrainian).
Berezovsky, M. D. (2016). Stages of breeding of large white pig breed in Ukraine. Poltava: Techservice (in Ukrainian).
Berezovsky, M. D., & Vashchenko, P. A. (2010). Combination ability of pig lines. Bulletin of Agrarian Science, 3, 40�??43 (in Ukrainian).
Berezovsky, N. D. (2014). Influence of maternal forms on the productivity level of hybrid pig population. Peeg Breeding, 65, 48�??52 (in Ukrainian).
Chеrniy, N. V., Matsenko, E. V., Shchepetilnikov, Yu. A., Maslak, Yu. V., Machula, O. S., Furda, I. V., Voronyak, V. V., & Gutyj, B. V. (2018). Influence of the supplement «Press-Acid» on proteinmineral metabolism and resistance of piglets. Scientific Messenger of Lviv National University of Veterinary Medicine and Biotechnologies, 20(83), 320–324. doi: 10.15421/nvlvet8364.
Esfandyari, H., Sоrensen, A. C., & Bijma P. (2015). Maximizing crossbred performance through purebred genomic selection. Genetics, Selection, Evolution, 47(1), 16. doi: 10.1186/s12711-015-0099-3.
Grishina, L. P., & Fesenko, A. G. (2015). Efficiency of using specialized pig type for crossbreeding and hybridization. Bulletin of Agrarian Science of the Black Sea, 4(2), 40�??47. doi: 10.31521/2313-092X.
Gutyj, B., Leskiv, K., Shcherbatyy, A., Pritsak, V., Fedorovych, V., Fedorovych, O., Rusyn, V., & Kolomiiets, I. (2017). The influence of Metisevit on biochemical and morphological indicators of blood of piglets under nitrate loading. Regulatory Mechanisms in Biosystems, 8(3), 427–432. doi: 10.15421/021766
Halak, V. I. (2012). Patent Ukrainy 66551. Kyiv: Derzhavne patentne vidomstvo Ukrainy (in Ukrainian).
Iesina, E. V., Tishkina, N. M., & Gutyj, B. V. (2018). Pathoanatomical diagnosis, treatment and preventive measures at pigs gastroenterocolitis. Scientific Messenger of Lviv National University of Veterinary Medicine and Biotechnologies, 20(83), 429–434. doi: 10.15421/nvlvet8384
Khalak, V. I., & Gutyj, B. V. (2020). Signs of reproductive qualities of sows of different types of adaptation, their variability and correlation. Scientific Messenger of Lviv National University of Veterinary Medicine and Biotechnologies. Series: Agricultural sciences, 22(92), 35–41. doi: 10.32718/nvlvet-a9207
Khalak, V., Gutyj, B., Bordun, O., Il’chenko, M., & Horchanok, A. (2020). Effect of blood serum enzymes on meat qualities of piglet productivity. Ukrainian Journal of Ecology, 10(1), 158–161. doi: 10.15421/2020_25.
Komlatsky, V. I., & Gvozdikova, E. V. (2015). Technological features of effective pig breeding. Collection of scientific papers of the North Caucasus Research Institute of Animal Husbandry, 4(1), 167�??171 (in Russian).
Kovalenko, V. P., Nezhlukchenko, T. I., & Plotkin, S. Ya. (2008). Modern methods of estimation and prediction of patterns of ontogeny of animals and birds. Bulletin of Agrarian Science, 2, 40�??45 (in Ukrainian).
Lakin, G. F. (1985). Biometrija. Moscow (in Russian).
Martyshuk, T. V., Gutyj, B. V., Vishchur, O. I., & Todoriuk, V. B. (2019). Biochemical indices of piglets blood under the action of feed additive “Butaselmevit-plus”. Ukrainian Journal of Veterinary and Agricultural Sciences, 2(2), 27–30. doi: 10.32718/ujvas2-2.06.
Martyshuk, T. V., Hutyi, B. V., Khalak, V. I., Stadnytska, O. I., & Todoriuk, V. B. (2019). Stan imunnoi systemy porosiat za dii kormovoi dobavky ‘Butaselmevit-plius’. Visnyk Poltavskoi derzhavnoi ahrarnoi akademii, 4, 116�??125 (in Ukrainian).
Tserenyuk, O. M., Khvatov, F. I., & Strizhak, T. A. (2010). Effectiveness of breeding and evaluation indices of maternal pig productivity. Science. Tech. Bulletin, 102, 173-183 (in Ukrainian).
Vashchenko, P. A. (2010). Determination of breeding value of pigs by different methods. Bulletin of Agrarian Science of the Black Sea, 2(52), 76�??79 (in Ukrainian).
Vashchenko, P. A., Balatsky, V. N., & Pochernyaev, K. F. (2015). Using the BLUP model with the inclusion of DNA markers for pig evaluation. Zootechnical Science of Belarus, 50(1), 43–50 (in Russian).
Voloshchuk, V. M. (2014). Stan i perspektyvy rozvytku haluzi svynarstva. Visnyk Ahrarnoyi Nauky, 2, 17�??20 (in Ukrainian).