The influence of increased doses of vitamin E on production and hematological parameters in broilers
1999
Fucikova, A. | Konecna, A. | Hodina, T. (Ceska Zemedelska Univ., Prague-Suchdol (Czech Republic). Agronomicka Fakulta) | Papesova, L.
The effect of graded vitamin E doses was verified on ROSS 208 broilers. The graded vitamin E doses in the loose diet fed ad libitum were 0; 25; 50; 100; and 150 ppm (added values). In trials 1 and 2, the following was studied: production parameters (live body weight, feed conversion), state of health on days 21 and 42, red and white blood picture on day 42. The evaluation of the red blood picture in trial 1 revealed significant differences in hematocrit values between 50 ppm vitamin E group and that of 150 ppm vitamin E. The red blood count results have indicated an evident growth of all its values in doses of 25, 50 and 100 ppm in both trials. The white blood count revealed no substantial dependence on vitamin E levels, even though a significant difference was found in monocyte counts between 25 ppm and 100 ppm. The highest efficacy of vitamin E in terms of growth and feed conversion has been proved in 50 ppm and/or 100 ppm of vitamin E.
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