Body mass and dynamics of growth of broiler chickens of different genotype in improved rearing conditions

Abstract

Application of lower housing density and discontinuous light programme, which at the same time marked the application of moderate photoperiod, had positive effect on realized final body masses of broiler chickens of both investigated genotype, however, exhibited effect was higher in chickens of Cobb genotype, considering that significantly greater body mass was established. Chicken genotype is confirmed as important interactive factor in improved rearing conditions, considering higher average daily gains of Cobb chickens compared to Arbor Acres, also in all weekly investigations.

Primena manje gustine naseljenosti i diskontinuiniranog svetlosnog programa, koji je istovremeno označavao i primenu umerenog fotoperioda, je imala pozitivan efekat na ostvarene završne telesne mase brojlerskih pilića oba ispitivana genotipa, s tim da je ispoljeni uticaj bio veći kod pilića genotipa Cobb, obzirom na utvrđenu značajno veću telesnu masu. Genotip pilića je potvrđen kao važan interaktivni faktor u poboljšanim uslovima gajenja, obzirom na utvrđene veće prosečne dnevne priraste pilića genotipa Cobb u odnosu na Arbor Acres, takođe u svim nedeljnim ispitivanjima.