Comparative investigation of productive and slaughtering traits in three broiler trains

Abstract

The object of this study was to establish and compare performance of three broiler strains Arbor Acres. Hybro G and Cobb 500) at simultaneous fattening which are present at our production. The study lasted 6 weeks and included 3000 chicks, i.e. 1000 chicks per strain Average body mass of day-old chicks of Arbor Acres and Hybro (i was uniform (43.2 and 43.3 g), while Cobb 500 chicks had lower average body mass (36.89 g); at 42 days the biggest body mass reached Hybro G broilers (2.356.94 g), than Arbor Acres ?2.25X.29 g) and Cobb 500 (2,166.44 g). The lowest mortality (2.5%). the best feed conversion ( 1.78) and the highest performance index were found in Hybro G broilers. The best slaughter yields were found in Arbor Acres mules (86,08%) and Hybro G. females (86,23%).

Proučavanje proizvodnih i klaničnih osobina brojlera zastupljenih na našem tržištu u 2001. godini, imalo je za cilj da se identifikuju i uporede rezultati istovremenog i tova provenijenci Arbor Acres, Hybro G i Cobb 500. Ispitivanje je trajalo 6 nedelja i obuhvatilo 3000 pilića, odnosno po 1000 od svakog genotipa. Prosečne telesne mase jednodnevnih pilića Arbor Acres i Hybro G bite su ujednačene (43,2 i 43,0 g) doksu pilići Cob 500 imali manju prosečnu masu (36,89g), a sa 42 dana uzrasta, najveću prosečnu telesnu masu postigli su pilići Hybro G (2.356,94 g), zatim Arbor Acres (2.258,29 g) i Cobb 50 (2.166,44g). Najmanji mortalitet (2,5%), najbolja konverzija hrane (1,78) i najveća vrednost proizvodnog indeksa ustanovljena je kod pilića Hybro G. Najbolji klanični randman, dobijeni su na trupovima petlića Arbor Acres (86,08%) i kokica Hybro G (86,23%).