Effect of Adding Dietary Humate on Productive Performance of Broiler Chicks

摘要

Using natural product as growth promoter in poultry nutrition has lately been increased. This study was conducted to evaluate the effect of adding dietary humate on productive performance of broiler chicks from 1-28 days of age. The 271 days old broiler chicks were randomly distributed among 3 treatment groups with six replicates of 15 chicks each. Chicks were fed a starter broiler diet containing 0.0, 5.0, or 10.0 g humate kg~(-1) diet. Body weight at 14th day of age and body weight gain from 8-14 days of age for chicks fed 5.0 g humate were lighter than those fed 0.0 and 10.0 g humate. At 21st day of age, body weight for chicks fed 5.0 g humate were lower than those fed 0.0 g humate. From 22-28 days of age, the body weight gain of chicks fed 5.0 ghumate was better than those fed 0.0 and 10.0 g humate. Final body weight at 28th day of age and body weight gain from 15-21 and 1- 28 days of age for chicks fed 10.0 g humate were lower than those fed 0.0 and 5.0 g humate. From 8-14 days of age, feed consumption of broiler chicks fed diet containing 5.0 g humate kg~(-1) was significantly lower than those fed diet containing 0.0 and 10.0 g humate kg~(-1). Feed consumption of chicks fed 5.0 g humate was higher than those fed 0.0 and 10.0 g humate from 22-28 days of age. However, feed consumption from 1-28 days of age for chicks fed 0.0 g humate was the lowest. Feed conversion ratio from 8-14 days of age for chicks fed 5.0 g humate was worse than those fed 10.0 g humate. From 15-21, 22-28 and 1-28 daysof age, feed conversion ratio of chicks fed 10.0 g humate was the worst. Performance index from 15-21 and 22-28 days of age for chicks fed 10.0 g humate was significantly less than those fed 0.0 and 5.0 g humate. Results suggest that adding 5.0 or 10.0 ghumate kg~(-1) into diet negatively affect the productive performance of broiler chicks in respect to feed conversion ratio and performance index.