COMPARATIVE GROWTH CAPACITY REVIEW OF AVIAN 24 K AND AVIAN 34 K BROILERS

Na dva genotipa pilića, Avian 24 K i Avian 34 K obavljena su istraživanja kapaciteta rasta i kakvoće trupova u dobi od 42 dana. Na ukupno 100 pilića, istražene su stope rasta (SP) i relativni rast (RP). Procjena pojedinih faza rasta obavljena je pomoću asimetrične S-funkcije. Utvrđene točke infleksije T za Avian 24 K (4,49,1480) i za Avian 34 K (4,74,1480) pokazuju specifično reagiranje genotipova pilića u istim uvjetima hranidbe i smještaja. Utvrđeno je da genetska osnova statistički značajno (P <0,05) utječe na fenotipsko očitovanje živih i zaklanih masa u tovu pilića do 42 dana. Poredbenim prikazom kakvoće trupova potvrđena je bolja prikladnost za proizvodnju mesa brojlera Avian 24 K u odnosu na brojlere Avian 34 K, jer su razlike u očitovanju prinosa najvrednijih dijelova trupa i mišićnog tkiva, medu istraživanim genotipovima pilića bile statistički značajne (P <0,05).Researches of the growth capacity and the carcass quality have been done on two chicken genotypes, Avian 24 K and Avian s4 K at the age of 42days. Growth rate (sP)and relative growth (Rp) have been examined on thetotal numberof 100 chickens. Estimation of teh particular phases of growth was done by the asimmetryc S-function. The established points of inflection, T for Avian 24 K (4,49; 1 480) and for Avian 34 K (4.74;1480) show specific reaction of chicken genotype in the same conditions of feeding and accommodation. lt has been established that the genetic base affects the fenotypic characteristics: live weight and weight of slaughtered chicken in fattening up to 42 days, are statisticaly significant (P< 0.05). Better convenience for meat production has been confirmed by the comparative review of carcass quality, because the differences between yields of the most valuable parts of the carcass and the meat tissue among examined genotypes of chickens were statistically significant (P