The effect of the humic acid and garlic (Allium sativum L.) on performance parameters and carcass characteristic of broiler chicken

In this study the effect of humic acids and humic acids and garlic powder (Allium sativum L.) combination on performance parameters and carcass characteristic of broiler chickens were studied. A total of 120 Ross 308 broiler chickens were divided into 3 treatments (n=40). The control group of chickens was fed complete feed mixtures without any additives. Treatment T1 was fed complete feed mixtures containing 1% of humic acid. Treatment T2 was fed complete feed mixtures containing 1.8% of humic acid and 0.2% of garlic powder (Allium sativum L.). At the end of the experiment was average body weight (values in the order of the groups: 1796.4±188.1; 1999.1±355.8 and 1958.6±201.2 g±SD) significantly higher (P≤0.05) in both treatments groups compared to control group. In T1 was weight of gizzard (values in the order of the groups: 34.9±5.2; 43.1±9.4 and 38.9±7.0 g±SD) significantly higher (P≤0.05) compared to control group. Carcass weight, weight of heart weight of liver and carcass yield of treatments groups was higher, but differences in these indicators were not statistically significant (P≥0.05). The results of this experiment indicate that humic acids may by an alternative replacement of feed antibiotics.