Effect of adding Garlic Powder (Allium sativum) and Black Seed ( Nigella sativa) in Feed on Broiler Growth Performance and Intestinal Wall Structure

This study was conducted to investigate the effect of garlic powder (GP) black seed (BS) and plant premix (GP and BS) in feed on broiler growth and intestinal wall structure. The result included 480 Hubbard broiler chicks( day-old) There were 4 treatment groups each consisting of 3 replicates .The four dietary treatments consisted of a control ( basal diet ) , basal diet + 0.5% GP , basal diet +0.5% BS and basal diet +0.5% plant premix (GP and BS) , to the starter and finisher diet. The experiment lasted 42 days. Body weight , body weight gain , feed intake and feed conversion ratio were determined weekly and intestinal characteristics were determined at the end of the study (42 day) .The addition of GP and BS plant premix (GP and BS) to the diet resulted in significantly higher body weight , body weight gain and feed intake as compared to that of control group. However , feed conversion ratio was not influenced by dietary treatment (p>0.05) . The villus height , crypt depth and crypt depth to villus height ratio was significantly higher in group garlic powder and plant premix (GP and BS) than other groups. While villus height , crypt depth and crypt depth to villus height ratio significantly lower in the control group compared with other treatment groups. It was found that the goblet cell were not affected by any treatment . Based on the results of this study it be could be advised to supplement broiler feed with 0.5% GP and plant premix. Key words: Garlic , Black seed, Performance, wall intestinal structure