A note on the performance of medium type turkeys fed on practical diets containing different levels of supplemental vitamins and trace minerals during the rearing period
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Department of Poultry Science, Olsztyn University of Agriculture and Technology, 10-718 Olsztyn 5, Poland
Publication date: 1996-04-12
J. Anim. Feed Sci. 1996;5(2):157-162
The influence of different contents of vitamins and minerals in practical diets on performance indices was evaluated on 300 medium type BUT-9 turkeys divided into two groups, 3 replicates, consisting of 25 toms and 25 hens in each. Practical diets used in both groups differed only in the content of vitamins and trace minerals added: lower in group L, higher in group H. The turkeys of group H were characterized by a higher live body weight (females at 15 weeks by - 4.3%, and males at 22 weeks - by 8.3%), consumed less feed, crude protein and AMEN per 1 kg of live body weight, lower mortality and carcass dressing percentage and breast muscle content. Toms of this group slaughtered at 22 weeks, had more leaf fat in the body.
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