METHOD FOR OBTAINING COMPETITIVE BELARUSIAN HYBRID WITH 63-65 % OF MEAT CONTENT IN BODY

The maximum reproductive capacity was determined in three (only for multiple pregnancy) and four breed combinations obtained after crossing sows of large white breed with hybrid boars of BM×L, as well as two breed sows of LW×Y and L×LW. It was revealed that the best indicators of fattening performance were shown by three and four breed young hybrids of combinations LW×(BM×L), (BM×L)×L, (BM×L)×D, (LW×BM)×(L×D), (LW×Y)×(L×D), (L×LW)×(L×D), where the age of reaching body weight of 100 kg, the average daily weight gain and feed costs made 166-181 days, 760-803 g and 3.18-3.40 feed units, respectively. However, the absolute leaders in terms of age of reaching 100 kg of body weight and feed costs were four breed hybrids (LW×Y)×(L×D), which exceeded the best results of three breed young animals by 9.4 and 9.6 %. The highest meat content in carcasses was determined in young animals of combinations LW×(BM×L), (LW×BM)×P, (LW×BM)×(L×D), (LW×BM)× (D×P) and (L×LW)×(L×D), with the meat yield within the range of 67.5-70.5 %. Almost all three breed and with no exception all four breed hybrids had advantage for meat content in carcass over two breed and pure breed gilts of the compared groups by up to 11.0 %.

heterosis, hybrid, breed, reproductive traits, average daily weight gain, fattening traits, morphological composition of carcass, large white breed, Belarusian meat breed, Duroc, Landrace, Pietrain

1. Шейко, И. П. Эффективность использования гибридных хряков на чистопородных и помесных матках / И. П. Шейко, Л. В. Никифоров // Актуальные проблемы интенсивного развития животноводства : материалы VI науч.-практ. конф. - Горки, 2003. - С. 334-336.

2. Производство высокопродуктивных гибридов в промышленном свиноводстве: Рекомендации / И. П. Шейко [и др.]. - Мн., 2005 - 16 c.

3. Шейко, И. П. Свиноводство / И. П. Шейко, В. С. Смирнов. - Минск : Ураджай, 1997. - 352 с.

4. Церенюк, О. М. Эффективнiсть промислового схрещування маток украiнськоi мясноi породи свиней з кнурами рiзних генотипiв / О. М. Церенюк // НТБ № 81. - Харькiв, 2002. - С. 128-133.

5. Шейко, Р. И. Интенсификация производства свинины на промышленной основе : монография / Р. И. Шейко. - Минск, 2003. - 170 с.

6. Федоренкова, Л. А. Селекционно-генетические основы выведения белорусской мясной породы свиней : монография / Л. А. Федоренкова, Р. И. Шейко. - Минск : Хата, 2001. - 214 с.