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Information × Registration Number 0219U000600, 0116U002153 , R & D reports Title Identify the best options for combining the genotypes of pigs with industrial cross-breeding and hybridization. popup.stage_title Head Nebilita Nikolai Stepanovich, Registration Date 11-02-2019 Organization Cherkassy experimental station furs animals breeding and hunting of Cherkassy institute of agroindustrial production popup.description2 The object of research: the process of improving the level of average daily increments, body length, life span thickness, age of reaching a live weight of 100 kg of young pigs, indicators of reproductive qualities of sows, evaluations of the breeders, selection and genetic parameters of the main characteristics of productivity. The purpose of the work is to determine the best variants of the combination of genotypes of pigs during industrial crossing and hybridization. Research methods - zootechnical, biometric, analytical. It was found significantly higher multiplicity (11.6-11.8 heads) with a combination of double-bred queens (LWx L) with boars of a red white-belted breed and Pietrain, and a significantly larger large-fruited (1.5-1.6 kg) of various origins with boars of breeds of Pietrain and Duroc. In total variability, the largest share of genotype influence took place according to such economically useful features as large-fruited and live weight of one head at weaning - 32.2 and 65.8%, respectively. The best feeding qualities are characterized by piglets, obtained from a combination of double-bred queens (LW x L) with boars of breed Pietrain. Commodity mixes from this combination of genotypes reach a live weight of 100 kg 17.9 days earlier and spend 1 kg of feed per 0.72 feed. units fewer purebred large white breed animals. A reliable correlation between the body weight of animals at four and six months was determined - 0.79–0.89 ***. Animals that have a high growth rate during the rearing period retain this feature in the subsequent fattening. It has been established that with intensive industrial production of pork it is economically more efficient to grow commercial hybrids and hybrids to a body weight of 100 kilograms. To recommend the combination of two-breed sows of the genotype (LW хL) of domestic breeding with boars, Red White Belt, and Pietrain, for wider use, in the crossing system for farmers and households of the region. Product Description popup.authors Бащенко Михайло Іванович Бойко Олександр Васильович Ващенко Олександр Валерійович Небилиця Микола Степанович Сотніченко Юлія Миколаївна popup.nrat_date 2020-04-02 Close