Pig Breeding 2023 №79

BEST LINEAR UNBIASED PREDICTION INDEX: SELECTION CRITERIA AND ECONOMIC EVALUATION OF THE USE OF SOWS OF DIFFERENT BREEDING VALUE

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UDC: 636.4.082.12

DOI: 10.37143/2786-7730-2023-1(79)01

REFERENCIS АРА style: Khalak, V. I., Tsereniuk, O. M., Gryshina, L. P., Ilchenko, M. O., & Bordun, O. M. & Smyslov, S. Yu. (2023). Best linear unbiased prediction index: selection criteria and economic evaluation of the use of sows of different breeding value. Svynarstvo i ahropromyslove vyrobnytstvo [Pig Breeding and Agroindustrial Production]. Poltava, 1(79), 7-21. doi: 10.37143/2786-7730-2023-1(79)01

V. I. Khalak,candidate of agricultural sciences, senior researcher, head of the animal husbandry laboratory,
ORCID:https://orcid.org/0000-0002-4384-6394
E-mail:v16kh91@gmail.com
State institution "Institute of Grain Crops of the National Academy of Agrarian Sciences of Ukraine" St. Volodymyra Vernadskyi, 14, Dnipro, Ukraine, 49009
O. M. Tsereniuk,doc. of agricultural sciences, associate professor, director of the Institute of Pig Breeding and AIP of the NAAS,
ORCID:https://orcid.org/0000-0003-4797-9685
E-mail:tserenyuk@gmail.com
Institute of Pig Breeding and agroindustrial production NAAS, Shvedska Mohyla Str., 1, Poltava, Ukraine, 36013
L. P. Hryshina,doc. of Agricultural Sciences. sciences, senior researcher, chief researcher, pig breeding and selection laboratory
ORCID:https://orcid.org/0000-0001-6292-0257
E-mail:ludpavgri@ukr.net
Institute of Pig Breeding and agroindustrial production NAAS, Shvedska Mohyla Str., 1, Poltava, Ukraine, 36013
M. O. Il’chenko, candidate of the agricultural sciences, academic secretary,
ORCID:https://orcid.org/0000-0003-0163-1384
E-mail:mariia1984poltava@gmail.com
Institute of Pig Breeding and agroindustrial production NAAS, Shvedska Mohyla Str., 1, Poltava, Ukraine, 36013

S.Yu Smyslov candidate of the agricultural sciences, deputy director for scientific work
ORCID:
E-mail:pigbreeding@ukr.net
Institute of Pig Breeding and agroindustrial production NAAS, Shvedska Mohyla Str., 1, Poltava, Ukraine, 36013

Abstract

Purpose. To study indexes of own productivity of repair pigs and reproductive qualities of sows of different intrabreed differentiation according to the BLUP index, as well as to determine criteria for selecting highly productive animals for further use in the controlled population. Methods. Zootechnical, statistical, purebred breeding. The object of the study were repair pigs and sows of the Large White breed. The breeding value of animals of the specified production group was determined by the BLUP index, evaluation of young pigs according to their own productivity indexes, sows - according to reproductive qualities, was carried out taking into account the following characteristics: age of reaching live weight of 100 kg, days; fat thickness at the level of the 6th-7th thoracic vertebra, mm; the thickness of the fat in the middle point of the back between the withers and the sacrum, mm; thickness of lard on sacrum, mm; body length, cm; multifertility, head; milk yield, kg, number of piglets at the time of weaning, head; weight of the nest at the time of weaning at the age of 28 days, kg, preservation, %. Comprehensive evaluation of sows was carried out according to the index of M. D. Berezovskyi (cited by Vashchenko, 2019), the alignment of the sow's litter according to the live weight of piglets at the time of their birth - according to the method of V. I. Khalak (2012). Biometric processing of the research results was carried out according to generally accepted methods (V. P. Kovalenko et al, 2010). Results. Based on the results of the research, it was determined that repair pigs of the Large White breed, based on their own productivity (age of reaching 100 kg live weight, days; lard thickness at the level of 6-7 thoracic vertebrae, mm) belong to the elite class. The maximum indexes of multifertility (12.8+0.21 head), milk yield (62.8+1.46 kg), the number of piglets at the time of weaning (10.9+0.20 head) and litter weight at the time of weaning at the age of 28 days (85.6+1.54 kg) are characterized by sows of the I experimental group (BLUP index = 109.78-123.14); the index of M. D. Berezovskyi is 41.86+0.593 points. The coefficient of variation (Cv, %) of the reproductive qualities of sows of the Large White breed of different breeding value, evaluated according to the BLUP index (maternal line) ranges from 4.79 to 18.59 %. Conclusions. Coefficient of pairwise correlation (r) between indexes of reproductive qualities, BLUP index (maternal line) and index of M. D. Berezovskyi varies from -0.292 (tr=3.72) to + 0.978 (tr=262.05); the relationship between the specified mathematical models and the signs of own productivity is weak and unreliable (r= -0.050 - +0.007). The use of sows of high breeding value (BLUP index = 109.78-123.14) provides additional production at the level of+13.20 %, and its value is +431.77 UAH./head/farrowing.

Key words: sow, breed, own productivity, reproductive qualities, BLUP index, breeding value, variability, correlation.

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