THE EFFECT OF IMPROVING CARPATHIAN BREED BY CROSSING WITH BOER BREED UPON THE CARCASSES AT THE OBTAINED HALF-BREEDS

Camelia Zoia Zamfir, R. Raducu, Adriana Vicovan, Daniela Jitariu, Ana Enciu, Alina Nicolescu, Carmen Ana Pivodă, Maria Stanciu

Abstract
   The research work aims to optimize the technology of fattening the kids and improving the quality of the carcasses by using the crossbreeding of Carpathian breed with Boer breed. It was made the fattening in intensive system, using two feeding systems: an uniform system of 92 days (with combined fodders) which assured 15.88% PBD and 89 % UN and a differentiated system with 15 days of accommodation, which assured 12.6%PBD and 91% UN, 62 days of effective fattening which assured 15.88%PBD and 89% UN and 15 days of finishing, which assured 12%PBD and 94% UN. The weight in the end of fattening was bigger at the F₁ half-breed of Boer x Carpathian comparatively to the kids of Carpathian breed, and there were no differences significant between the feeding systems. The kids of Carpathian breed had the final weight of 30.736±1.0370 kg (lot 1) and 30.857±0.6760 kg (lot 2), the kids of F₁ Boer X Carpathian 34.536±1.0460 kg (lot 3) and 34.100± 1.1210 kg (lot 4). It is noticed higher daily increasing rates at the F₁ half-breed of Boer x Carpathian comparatively to the increasing rates of the kids of Carpathian breed. The daily gain of the kids Carpathian breed was 140±0.0080 g (lot 1) and 134±0.0100 g (lot 2) and at the F₁ half-breed of Boer x Carpathian was 154±0.0060 g (lot 3) and 155± 0.0080 g (lot 4), not being differences significant between the feeding systems. The results of experimental slaughtering emphasize bigger carcasses and higher output at the F₁ half-breed of Boer x Carpathian. The kids of Carpathian breed had carcasses of 14.20±0.9150 kg and 14.05±0.8975 kg, and F₁ half-breed kids 16.25±1.8750 kg and 16.48±1.8950 kg, the value of the slaughtering output was of 46.20±2.9620 % and 45.50±2.9510% at the kids of Carpathian breed, and at the F₁ kids of Boer x Carpathian 47.10±2.9741% and 48.30±2.9787%. All the obtained data show that the improving effect of the meat production at the kids of Carpathian breed by crossbreeding with Boer breed.