ZOOTECHNICAL EVALUATION AND ECONOMIC EFFICIENCY OF USING SOWS OF DIFFERENT INTRABREED DIFFERENTIATION ACCORDING TO SOME MATHEMATICAL MODELS AND SELECTIONAL INDICES
Keywords:
repair pig, sow, own productivity, trait, reproductive qualities, breeding value, index, variability, correlation, economic efficiency.
Abstract
The article presents the research results on the reproductive qualities of sows of different interbreeding differentiation by some multi-component integrated indicators. Based on the received data, the correlation analysis is carried out, and the economic efficiency of the research results is calculated. The research was conducted in agricultural formations of Dnipropetrovsk and Sumy regions, the laboratory of animal husbandry of the State Institution “Institute of Grain Crops of NAAS” and the laboratory of animal husbandry and fodder production of the Institute of Agriculture of the North-East of NAAS. The work was performed according to the research program of NAAS № 30, “Pig breeding”. Evaluation of sows on the grounds of reproductive qualities was carried out, taking into account the following indicators: fertility, goal; high fertility, kg; milk yield, kg; nest weight at the time of weaning at the age of 28–30 days, kg, safety, %. A comprehensive assessment of sows based on reproductive qualities was performed according to the index of M. D. Berezovsky (quoted in Vashchenko, 2019) and the selection index of reproductive qualities of sows (SIRQS) (Tserenyuk et al., 2010). The index of uniformity (homogeneity) of the sow's nest by the live weight of piglets at the time of their birth (IUN0) was calculated according to the method of Halak (2012). Biometric indicators and the cost of additional products were calculated according to generally accepted methods. Analysis of research results shows that fairly high indicators of reproductive qualities characterize sows of large white breeds in the controlled population. The number of animals of the elite class in terms of fertility is 71.3, and the weight of the nest at the time of weaning at the age of 60 days – is 36.0 %. Sows are characterized by maximum indicators of multiplicity (13.1–13.4 goals), milk yield (66.3–66.4 kg), and nest weight at the time of weaning at the age of 28–30 days (89.3–89.4 kg). Class M + interbreeding differentiation according to the M.D. Berezovsky index (lim = 40.00– 50.58 points) and the selection index of reproductive qualities of sows (SIRQS) (lim = 97.04–123.99 points). The number of reliable correlation coefficients between traits of reproductive qualities and integrated indicators of these groups of traits in pigs of the large white breed is 80.00 %, indicating the effectiveness of their use in selecting highly productive animals. The use of sows of class M + according to the index M.D. Berezovsky and the selection index of reproductive qualities of sows (SIRQS) provide additional products at the level of +16.79 – +16.89%.
References
1. Berezovskyi, M. D., Vashchenko, P. A., & Vovk, V. O. (2014). Vyrivnianist tovshchyny shpyku u svynei velykoi biloi porody riznykh vnutrishnoporidnykh typiv [Equality of fat thickness in pigs of large white breed of different intrabreed types]. Rozvedennia i henetyka tvaryn : mizhvidomchyi tematychnyi naukovyi zbirnyk, 48, 23–27 (in Ukrainian).
2. Dudka, O. I. (2018). Porodni osoblyvosti uspadkuvannia vidtvoriuvalnykh oznak svynei [Breed features of inheritance of reproductive traits of pigs]. Naukovyi visnyk «Askaniia–Nova». Nova-Kakhovka: PYEL, 11, 170–177 (in Ukrainian). DOI: https://doi.org/10.33694/2617-0787-2018-1-11-170-177.
3. Dudka, O. I. (2019). Produktyvni yakosti svynei vitchyznianykh porid za riznykh metodiv rozvedennia [Productive qualities of domestic pigs by different breeding methods]. Naukovyi visnyk «Askaniia–Nova». Nova- Kakhovka: PYEL, 12, 123–133 (in Ukrainian). DOI: https://doi.org/10.33694/2617-0787-2019-1-12-123-133.
4. Dudka, O. I. (2020). Adaptatsiinazdatnistta ekspluatatsiina tsinnist svynomatok henofondovykh stad [Adaptability and operational value of sows gene pool herds]. Naukovyi visnyk «Askaniia–Nova». Nova- Kakhovka: PYEL, 13, 245–256 (in Ukrainian). DOI: https://doi.org/10.33694/2617-0787-2020-1-13-245-256.
5. Dudka, O. I., & Karvatska, I. M. (2019). Vykorystannia pryiomiv stabilizuiuchoho vidboru v henofondovykh stadakh svynei [The use of methods of stabilizing selection in the gene pool of pigs]. Naukovyi visnyk «Askaniia–Nova». Nova- Kakhovka: PYEL, 12, 134–144 (in Ukrainian). DOI: https://doi.org/10.33694/2617-0787-2019-1-12-134-144.
6. Dudka, O. I., & Karvatska, I. M. (2020). Ekoloho-henetychni parametry svynei henofondovykh stad [Ecological and genetic parameters of pigs in gene pool herds]. Naukovyi visnyk «Askaniia–Nova». Nova- Kakhovka : PYEL, 2020. Vyp. 13. S. 257–267. DOI: https://doi.org/10.33694/2617-0787-2020-1-13-257-267.
7. Dudka, O. I., & Karvatska, I. M. (2021). Pleminna tsinnist knuriv-plidnykiv henofondovykh stad [Pedigree value of breeding boars of gene pool herds]. Naukovyi visnyk «Askaniia–Nova». Nova- Kakhovka: PYEL, 21, 334–342 (in Ukrainian). DOI: https://doi.org/10.33694/2617-0787-2021-1-14-334-343.
8. Dudka, O. I., Karvatska, I. M., & Chichaiev, O. M. (2018). Efektyvnist vykorystannia knuriv zarubizhnoi selektsii v poiednanniakh zi svynomatkamy vitchyznianykh porid [Efficiency of use of boars of foreign selection in combinations with sows of domestic breeds]. Naukovyi visnyk «Askaniia–Nova». Nova-Kakhovka: PYEL, 11, 178–184 (in Ukrainian). DOI: https://doi.org/10.33694/2617-0787-2018-1-11-178-184.
9. Halak, V. I. (2015). Nekotorye selekcionnye priznaki svinej i ih ocenka s ispol'zovanie innovacionnyh metodov [Some breeding traits of pigs and their evaluation using innovative methods]. Nauchnyj faktor v strategii innovacionnogo razvitija svinovodstva: sb. materialov XXII mezhdunarodnoj nauchno-prakticheskoj konferencii. Grodno: GAU, 140–145 (in Russian).
10. Hetia, A. A. (2009). Orhanizatsiia selektsiinoho protsesu v suchasnomu svynarstvi [Organization of selection process in modern pig breeding]. Poltava: Poltavskyi literator (in Ukrainian).
11. Khalak, V. I. (2012). Sposib vyznachennia vyrivnianosti hnizda svynomatok [The method of determining the alignment of the sow's nest]. Patent Ukrainy na korysnu model № 66551; zaiavl. 06.06.2011; opubl. 10.01.2012, Biul. №1 (in Ukrainian).
12. Khalak, V. I. (2021). Riven fenotypnoi konsolidatsii oznak vidtvoriuvalnykh yakostei ta yikh koreliatsiinyi zviazok u svynomatok riznoi pleminnoi tsinnosti [The level of phenotypic consolidation of traits of reproductive qualities and their correlation in sows of different breeding value]. Naukovyi visnyk «Askaniia–Nova». Nova-Kakhovka: PYEL, 21, 343–355 (in Ukrainian). DOI: https://doi.org/10.33694/2617-0787-2021-1-14-344-356.
13. Khalak, V. I., Hutyi, B. V., & Korkh, I. V. (2021). Riven dyskretnosti nyzkospadkovykh oznak ta yikh koreliatsiinyi zviazok u svynomatok riznykh klasiv rozpodilu za deiakymy otsinochnymy indeksamy [The level of discreteness of lowhereditary traits and their correlation in sows of different distribution classes according to some evaluation indices]. Naukovotekhnichnyi biuleten Instytutu tvarynnytstva NAAN. Kharkiv, 125, 216–226 (in Ukrainian). DOI: https://doi.org/10.32900/2 312-8402-2021-125-216-226.
14. Khalak, V. I., Ilchenko, M. O., & Petulko, P. V. (2020). Oznaky vidtvoriuvalnykh yakostei svynomatok riznoi ekspluatatsiinoi tsinnosti ta riven yikh dyskretnosti [Signs of reproductive qualities of sows of different operational value and the level of their discreteness]. Visnyk PDAA, 3, 159–165 (in Ukrainian). DOI: https://doi.org/10.31210/visnyk2020.03.17.
15. Kharlamova, T. S., & Hilevych, L. O. (2022). Analiz transhresiinoi otsinky svynei riznoho napriamu produktyvnosti [Analysis of transgressive evaluation of pigs of different productivity]. Tavriiskyi naukovyi visnyk, 123, 192–197 (in Ukrainian). DOI: https://doi.org/10.32851/2226-0099.2022.123.26.
16. Kharlamova, T. S., & Troianova, A. R. (2022). Otsinka plidnykiv za selektsiinym indeksom [Evaluation of breeders by selection index]. Tavriiskyi naukovyi visnyk, 123, 197–201 (in Ukrainian). DOI: https://doi.org/10.32851/2226-0099.2022.123.27.
17. Kovalenko, V. P., Khalak, V. I., Nezhlukchenko, T. I., & Papakina, N. S. (2010). Biometrychnyi analiz minlyvosti oznak silskohospodarskykh tvaryn i ptytsi [Biometric analysis of variability of traits of farm animals and poultry]. Navchalnyi posibnyk z henetyky silskohospodarskykh tvaryn. Kherson: Oldi (in Ukrainian). 18. Kovalenko, V. P., Nezhlukchenko, T. I., & Plotkin, S. Ya. (2000). Henetyko- matematychni metody kontroliu y upravlinnia selektsiinymy protsesamy u tvarynnytstvi [Genetic and mathematical methods of control and management of selection processes in animal husbandry]. Tavriiskyi naukovyi visnyk. Kherson, 20, 55–64 (in Ukrainian).
19. Metodika opredelenija jekonomicheskoj jeffektivnosti ispol'zovanija v sel'skom hozjajstve rezul'tatov nauchnoissledovatel'skih rabot, novoj tehnologii, izobretenij i racionalizatorskih predlozhenij [Methodology for determining the economic efficiency of the use in agriculture of the results of scientific research, new technology, inventions and rationalization proposals]. M.: VAIIPI, 1983. 149 s. (in Russian).
20. Pankieiev, S. P., & Tsariuchenko, A. V. (2021). Produktyvni oznaky svynei spetsializovanykh miasnykh porid zarubizhnoi selektsii v umovakh fermerskoho hospodarstva «Dnister» Khersonskoho raionu Khersonskoi oblasti [Productive traits of pigs of specialized meat breeds of foreign selection in the conditions of the farm "Dniester" of the Kherson district of the Kherson region]. Tavriiskyi naukovyi visnyk, 122, 251–258 (in Ukrainian). DOI: https://doi.org/10.32851/2226-0099.2021.122.37.
21. Pelykh, N. L., & Horb, Ye. V. (2021). Vidtvorni yakosti svynomatok z urakhuvanniam rivnia bahatoplidnosti [Reproductive qualities of sows taking into account the level of fertility]. Tavriiskyi naukovyi visnyk, 117, 245–250 (in Ukrainian). DOI: https://doi.org/10.32851/2226-0099.2021.117.33.
22. Shulha, Yu. I., Dudka, O. I., & Masliuk, A. M. (2012). Henotypy svynei askaniiskoi selektsii: mynule ta sohodennia [Genotypes of pigs of Askanian selection: past and present]. Tvarynnytstvo Ukrainy, 8, 76–79 (in Ukrainian).
23. Skrepets, K. V. (2019). Dynamika henetychnoi struktury populiatsii svynei askaniiskoho typu ukrainskoi miasnoi porody za kompleksnymy henotypamy [Dynamics of genetic structure of Askanian pig population of Ukrainian meat breed by complex genotypes]. Naukovyi visnyk «Askaniia–Nova». Nova-Kakhovka: PYEL, 12, 156–164 (in Ukrainian). DOI: https:// doi.org/10.33694/2617-0787-2019-1-12-156-164.
24. Stoianov, R. O. (2005). Otsinka henetychnoi sytuatsii v populiatsiiakh silskohospodarskykh tvaryn z vykorystanniam henetychnykh markeriv [Assessment of the genetic situation in farm animal populations using genetic markers]. Metodyky naukovykh doslidzhen iz selektsii, henetyky ta biotekhnolohii u tvarynnytstvi. Kyiv: Ahrarna nauka, 234–236 (in Ukrainian).
25. Tsereniuk, O. M., Akimov, O. V., & Chalyi, O. I. (2012). Porodno-liniina hibrydyzatsiia v svynarstvi Kharkivskoi oblasti [Breed-linear hybridization in pig breeding of Kharkiv region]. Rozvytok naukovoi spadshchyny profesora M. D. Liubetskoho shchodo rozvedennia i selektsii silskohospodarskykh tvaryn: materialy Mizhnarodnoi naukovoi konf. Kharkiv, KhDZVA, 66–71 (in Ukrainian).
26. Tsereniuk, O. M., Khvatov, F. I., & Stryzhak, T. A. (2010). Efektyvnist selektsiinykh i otsinochnykh indeksiv materynskoi produktyvnosti svynei [Efficiency of selection and evaluation indices of maternal productivity of pigs]. Naukovotekhnichnyi biuleten Instytutu tvarynnytstva NAAN, 102, 173–183 (in Ukrainian).
27. Vashchenko, P. A., Berezovskyi, M. D., & Tsybenko, V. H. (2018). Obgruntuvannia faktoriv dlia vkliuchennia u model vyznachennia pleminnoi tsinnosti svynei za vidtvoriuvalnymy yakostiamy [Substantiation of factors for inclusion in the model of determining the breeding value of pigs by reproductive qualities]. Visnyk Sumskoho natsionalnoho ahrarnoho universytetu. Seriia «Tvarynnytstvo», 2(34), 136–143 (in Ukrainian).
28. Voitenko, S. L. (2018). Stan ta tendentsii rozvytku svynarstva na pleminnii osnovi [Status and development trends of pig breeding on a breeding basis]. Naukovyi visnyk «Askaniia–Nova». Nova-Kakhovka, 11, 157–169 (in Ukrainian). DOI: https://doi.org/10.33694/2617-0787-2018-1-11-157-169.
29. Voloshchuk, V. M., & Khalak, V. I. (2015). Produktyvnist svynei riznoi pleminnoi tsinnosti ta klasiv rozpodilu za indeksamy O. Vanhena ta A. Sazera, Kh. Fredina [Productivity of pigs of different breeding value and distribution classes according to the indices of O. Wangen and A. Sazer, H. Fredin]. Svynarstvo. Mizhvidomchyi tematychnyi nauk. zb. Instytutu svynarstva i APV NAAN, 67, 81–86 (in Ukrainian).
30. Vovchenko, B. O., & Ishkhanian, A. R. (2012). Vykorystannia selektsiinoho indeksu dlia otsinky reproduktyvnykh yakostei svynomatok velykoi biloi porody [Use of selection index to assess reproductive qualities of sows of large white breed]. Tavriiskyi naukovyi visnyk, 82, 126–128 (in Ukrainian).
2. Dudka, O. I. (2018). Porodni osoblyvosti uspadkuvannia vidtvoriuvalnykh oznak svynei [Breed features of inheritance of reproductive traits of pigs]. Naukovyi visnyk «Askaniia–Nova». Nova-Kakhovka: PYEL, 11, 170–177 (in Ukrainian). DOI: https://doi.org/10.33694/2617-0787-2018-1-11-170-177.
3. Dudka, O. I. (2019). Produktyvni yakosti svynei vitchyznianykh porid za riznykh metodiv rozvedennia [Productive qualities of domestic pigs by different breeding methods]. Naukovyi visnyk «Askaniia–Nova». Nova- Kakhovka: PYEL, 12, 123–133 (in Ukrainian). DOI: https://doi.org/10.33694/2617-0787-2019-1-12-123-133.
4. Dudka, O. I. (2020). Adaptatsiinazdatnistta ekspluatatsiina tsinnist svynomatok henofondovykh stad [Adaptability and operational value of sows gene pool herds]. Naukovyi visnyk «Askaniia–Nova». Nova- Kakhovka: PYEL, 13, 245–256 (in Ukrainian). DOI: https://doi.org/10.33694/2617-0787-2020-1-13-245-256.
5. Dudka, O. I., & Karvatska, I. M. (2019). Vykorystannia pryiomiv stabilizuiuchoho vidboru v henofondovykh stadakh svynei [The use of methods of stabilizing selection in the gene pool of pigs]. Naukovyi visnyk «Askaniia–Nova». Nova- Kakhovka: PYEL, 12, 134–144 (in Ukrainian). DOI: https://doi.org/10.33694/2617-0787-2019-1-12-134-144.
6. Dudka, O. I., & Karvatska, I. M. (2020). Ekoloho-henetychni parametry svynei henofondovykh stad [Ecological and genetic parameters of pigs in gene pool herds]. Naukovyi visnyk «Askaniia–Nova». Nova- Kakhovka : PYEL, 2020. Vyp. 13. S. 257–267. DOI: https://doi.org/10.33694/2617-0787-2020-1-13-257-267.
7. Dudka, O. I., & Karvatska, I. M. (2021). Pleminna tsinnist knuriv-plidnykiv henofondovykh stad [Pedigree value of breeding boars of gene pool herds]. Naukovyi visnyk «Askaniia–Nova». Nova- Kakhovka: PYEL, 21, 334–342 (in Ukrainian). DOI: https://doi.org/10.33694/2617-0787-2021-1-14-334-343.
8. Dudka, O. I., Karvatska, I. M., & Chichaiev, O. M. (2018). Efektyvnist vykorystannia knuriv zarubizhnoi selektsii v poiednanniakh zi svynomatkamy vitchyznianykh porid [Efficiency of use of boars of foreign selection in combinations with sows of domestic breeds]. Naukovyi visnyk «Askaniia–Nova». Nova-Kakhovka: PYEL, 11, 178–184 (in Ukrainian). DOI: https://doi.org/10.33694/2617-0787-2018-1-11-178-184.
9. Halak, V. I. (2015). Nekotorye selekcionnye priznaki svinej i ih ocenka s ispol'zovanie innovacionnyh metodov [Some breeding traits of pigs and their evaluation using innovative methods]. Nauchnyj faktor v strategii innovacionnogo razvitija svinovodstva: sb. materialov XXII mezhdunarodnoj nauchno-prakticheskoj konferencii. Grodno: GAU, 140–145 (in Russian).
10. Hetia, A. A. (2009). Orhanizatsiia selektsiinoho protsesu v suchasnomu svynarstvi [Organization of selection process in modern pig breeding]. Poltava: Poltavskyi literator (in Ukrainian).
11. Khalak, V. I. (2012). Sposib vyznachennia vyrivnianosti hnizda svynomatok [The method of determining the alignment of the sow's nest]. Patent Ukrainy na korysnu model № 66551; zaiavl. 06.06.2011; opubl. 10.01.2012, Biul. №1 (in Ukrainian).
12. Khalak, V. I. (2021). Riven fenotypnoi konsolidatsii oznak vidtvoriuvalnykh yakostei ta yikh koreliatsiinyi zviazok u svynomatok riznoi pleminnoi tsinnosti [The level of phenotypic consolidation of traits of reproductive qualities and their correlation in sows of different breeding value]. Naukovyi visnyk «Askaniia–Nova». Nova-Kakhovka: PYEL, 21, 343–355 (in Ukrainian). DOI: https://doi.org/10.33694/2617-0787-2021-1-14-344-356.
13. Khalak, V. I., Hutyi, B. V., & Korkh, I. V. (2021). Riven dyskretnosti nyzkospadkovykh oznak ta yikh koreliatsiinyi zviazok u svynomatok riznykh klasiv rozpodilu za deiakymy otsinochnymy indeksamy [The level of discreteness of lowhereditary traits and their correlation in sows of different distribution classes according to some evaluation indices]. Naukovotekhnichnyi biuleten Instytutu tvarynnytstva NAAN. Kharkiv, 125, 216–226 (in Ukrainian). DOI: https://doi.org/10.32900/2 312-8402-2021-125-216-226.
14. Khalak, V. I., Ilchenko, M. O., & Petulko, P. V. (2020). Oznaky vidtvoriuvalnykh yakostei svynomatok riznoi ekspluatatsiinoi tsinnosti ta riven yikh dyskretnosti [Signs of reproductive qualities of sows of different operational value and the level of their discreteness]. Visnyk PDAA, 3, 159–165 (in Ukrainian). DOI: https://doi.org/10.31210/visnyk2020.03.17.
15. Kharlamova, T. S., & Hilevych, L. O. (2022). Analiz transhresiinoi otsinky svynei riznoho napriamu produktyvnosti [Analysis of transgressive evaluation of pigs of different productivity]. Tavriiskyi naukovyi visnyk, 123, 192–197 (in Ukrainian). DOI: https://doi.org/10.32851/2226-0099.2022.123.26.
16. Kharlamova, T. S., & Troianova, A. R. (2022). Otsinka plidnykiv za selektsiinym indeksom [Evaluation of breeders by selection index]. Tavriiskyi naukovyi visnyk, 123, 197–201 (in Ukrainian). DOI: https://doi.org/10.32851/2226-0099.2022.123.27.
17. Kovalenko, V. P., Khalak, V. I., Nezhlukchenko, T. I., & Papakina, N. S. (2010). Biometrychnyi analiz minlyvosti oznak silskohospodarskykh tvaryn i ptytsi [Biometric analysis of variability of traits of farm animals and poultry]. Navchalnyi posibnyk z henetyky silskohospodarskykh tvaryn. Kherson: Oldi (in Ukrainian). 18. Kovalenko, V. P., Nezhlukchenko, T. I., & Plotkin, S. Ya. (2000). Henetyko- matematychni metody kontroliu y upravlinnia selektsiinymy protsesamy u tvarynnytstvi [Genetic and mathematical methods of control and management of selection processes in animal husbandry]. Tavriiskyi naukovyi visnyk. Kherson, 20, 55–64 (in Ukrainian).
19. Metodika opredelenija jekonomicheskoj jeffektivnosti ispol'zovanija v sel'skom hozjajstve rezul'tatov nauchnoissledovatel'skih rabot, novoj tehnologii, izobretenij i racionalizatorskih predlozhenij [Methodology for determining the economic efficiency of the use in agriculture of the results of scientific research, new technology, inventions and rationalization proposals]. M.: VAIIPI, 1983. 149 s. (in Russian).
20. Pankieiev, S. P., & Tsariuchenko, A. V. (2021). Produktyvni oznaky svynei spetsializovanykh miasnykh porid zarubizhnoi selektsii v umovakh fermerskoho hospodarstva «Dnister» Khersonskoho raionu Khersonskoi oblasti [Productive traits of pigs of specialized meat breeds of foreign selection in the conditions of the farm "Dniester" of the Kherson district of the Kherson region]. Tavriiskyi naukovyi visnyk, 122, 251–258 (in Ukrainian). DOI: https://doi.org/10.32851/2226-0099.2021.122.37.
21. Pelykh, N. L., & Horb, Ye. V. (2021). Vidtvorni yakosti svynomatok z urakhuvanniam rivnia bahatoplidnosti [Reproductive qualities of sows taking into account the level of fertility]. Tavriiskyi naukovyi visnyk, 117, 245–250 (in Ukrainian). DOI: https://doi.org/10.32851/2226-0099.2021.117.33.
22. Shulha, Yu. I., Dudka, O. I., & Masliuk, A. M. (2012). Henotypy svynei askaniiskoi selektsii: mynule ta sohodennia [Genotypes of pigs of Askanian selection: past and present]. Tvarynnytstvo Ukrainy, 8, 76–79 (in Ukrainian).
23. Skrepets, K. V. (2019). Dynamika henetychnoi struktury populiatsii svynei askaniiskoho typu ukrainskoi miasnoi porody za kompleksnymy henotypamy [Dynamics of genetic structure of Askanian pig population of Ukrainian meat breed by complex genotypes]. Naukovyi visnyk «Askaniia–Nova». Nova-Kakhovka: PYEL, 12, 156–164 (in Ukrainian). DOI: https:// doi.org/10.33694/2617-0787-2019-1-12-156-164.
24. Stoianov, R. O. (2005). Otsinka henetychnoi sytuatsii v populiatsiiakh silskohospodarskykh tvaryn z vykorystanniam henetychnykh markeriv [Assessment of the genetic situation in farm animal populations using genetic markers]. Metodyky naukovykh doslidzhen iz selektsii, henetyky ta biotekhnolohii u tvarynnytstvi. Kyiv: Ahrarna nauka, 234–236 (in Ukrainian).
25. Tsereniuk, O. M., Akimov, O. V., & Chalyi, O. I. (2012). Porodno-liniina hibrydyzatsiia v svynarstvi Kharkivskoi oblasti [Breed-linear hybridization in pig breeding of Kharkiv region]. Rozvytok naukovoi spadshchyny profesora M. D. Liubetskoho shchodo rozvedennia i selektsii silskohospodarskykh tvaryn: materialy Mizhnarodnoi naukovoi konf. Kharkiv, KhDZVA, 66–71 (in Ukrainian).
26. Tsereniuk, O. M., Khvatov, F. I., & Stryzhak, T. A. (2010). Efektyvnist selektsiinykh i otsinochnykh indeksiv materynskoi produktyvnosti svynei [Efficiency of selection and evaluation indices of maternal productivity of pigs]. Naukovotekhnichnyi biuleten Instytutu tvarynnytstva NAAN, 102, 173–183 (in Ukrainian).
27. Vashchenko, P. A., Berezovskyi, M. D., & Tsybenko, V. H. (2018). Obgruntuvannia faktoriv dlia vkliuchennia u model vyznachennia pleminnoi tsinnosti svynei za vidtvoriuvalnymy yakostiamy [Substantiation of factors for inclusion in the model of determining the breeding value of pigs by reproductive qualities]. Visnyk Sumskoho natsionalnoho ahrarnoho universytetu. Seriia «Tvarynnytstvo», 2(34), 136–143 (in Ukrainian).
28. Voitenko, S. L. (2018). Stan ta tendentsii rozvytku svynarstva na pleminnii osnovi [Status and development trends of pig breeding on a breeding basis]. Naukovyi visnyk «Askaniia–Nova». Nova-Kakhovka, 11, 157–169 (in Ukrainian). DOI: https://doi.org/10.33694/2617-0787-2018-1-11-157-169.
29. Voloshchuk, V. M., & Khalak, V. I. (2015). Produktyvnist svynei riznoi pleminnoi tsinnosti ta klasiv rozpodilu za indeksamy O. Vanhena ta A. Sazera, Kh. Fredina [Productivity of pigs of different breeding value and distribution classes according to the indices of O. Wangen and A. Sazer, H. Fredin]. Svynarstvo. Mizhvidomchyi tematychnyi nauk. zb. Instytutu svynarstva i APV NAAN, 67, 81–86 (in Ukrainian).
30. Vovchenko, B. O., & Ishkhanian, A. R. (2012). Vykorystannia selektsiinoho indeksu dlia otsinky reproduktyvnykh yakostei svynomatok velykoi biloi porody [Use of selection index to assess reproductive qualities of sows of large white breed]. Tavriiskyi naukovyi visnyk, 82, 126–128 (in Ukrainian).
Published
2022-07-11
How to Cite
Khalak, V. I., Hutyi, B. V., & Bordun, O. M. (2022). ZOOTECHNICAL EVALUATION AND ECONOMIC EFFICIENCY OF USING SOWS OF DIFFERENT INTRABREED DIFFERENTIATION ACCORDING TO SOME MATHEMATICAL MODELS AND SELECTIONAL INDICES. Bulletin of Sumy National Agrarian University. The Series: Livestock, (1), 72-78. https://doi.org/10.32845/bsnau.lvst.2022.1.11
Section
Articles
ISSN 
ISSN 
