The effect of Zincotin, XVET Germany on broiler breeder performances was estimated in this study.
The experiment was done at a broiler breeder farm in North of Iran. 30.278 birds (Arbor Acres Plus) were evaluated in 8 houses of this farm from week 40 to 67 of the production period. The experimental farm consists of 3 houses as treatment group (Zincotin) and 5 houses as control. All houses had similar conditions and with the density (Birds in every square meter) of 6.04.
The number of hens in the treatment and control group were 10.932 and 17.368 respectively. This groups had 765 and 1213 roosters in treatment and control groups as well. Even though the sex ratio at week 26 (Before starting the experiment) was 8.2% the experiment started with the Female to male ratio (⚤) of 6% for both treatment and control group. Environmental situation, diseases, spiking and available healthy roosters in the farm were affecting the designed ⚤.