Effect of garlic powder on growth performance and resistance against disease of lai Choi chickens
The study was conducted to assess influence of supplementary raw garlic powder on the growth performance, meat quality and resistance against disease of broiler chickens. The total of 100 birds were equally divided into four treatments and raised over a period of 15 weeks.The treatments with different levels of supplementary garlic powder ratios of 0, 0.5, 1 and 1.5 percent called T1, T2, T3 and T4 respectively. The results showed that the survival rates of chickens in treatmens with supplementation of raw garlic powder to diets was 100%. Broiler chickens fed garlic supplemented diets had higher body weight and weight gain than those fed the control diet, in which chickens supplemented to 1.5% dietary garlic powder had highest body weight and weight gain. The body weight of 15-week-age chickens of T1, T2, T3 and T4 were 2144, 2144.1, 2181.5 and 2285 g/bird, respectively (P<0.05). The average weight gain of chickens of T1, T2, T3 and T4 were 20.07, 20.07, 20.43 and 21.41 g/bird/day, respectively (P<0.05). The average feed intake and feed conversion ratio of the birds were not significantly influenced by dietary treatments (P>0.05). The average feed conversion ratio of birds was 2.88 (P>0.05). Chicken supplemented with garlic powder in the diet was better against coccidiosis than the control.
