The effect of some additives on histological changes of broiler chicks
This study was conducted to investigate the effects of feed additives on weight and histological changes in the small intestine. A total of (350) broiler chicks one â€“day old (Ross 380) â€“ unsexed were randomly divided into (7) equal dietary treatment groups, as follows: Treatment (T1): Basal diet without any addition (control group) ,Treatment (T2): Basal diet + Garlic 4cc/10L,Treatment(T3):Basal diet + Saccharomyces cervisiae 2.5gm/10L,Treatment (T4): Basal diet + Stpire 2.5cc/10 L, Treatment (T5): Basal diet +B. glucan 8gm/10 kg, Treatment (T6): Basal diet + Levamisole 1gm/kg, Treatment (T6): Basal diet + Levamisole 1gm/kg, Treatment (T7): Basal diet + Neomycin 0.5 gm/L. These additions were presented on the first day of the arrival for 5 days, and on the day of first vaccination for 5 days and at the end of the experiment for 5 days also. These chicks vaccinated with NDV on the day one of age by injection in the neck and re-vaccinated at day 10 of age with Lassota, Body weight was weekly determined the results as following: Chicks feed a diet with (T7) showed improvement in villus height and in the (T3, T4).
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