Experimental Study on the Effects of Origanum Extract on the Production Performance and Immune Function of Meat Chicken
To investigate the effects of origanum extrac on the production performance and immune function of broilers.210 commercial chicken were selected for this experiment and randomly divided into 3 groups.Group A was a blank control group,Group B(30 mg/kg)was a medium dose,and Group C(60 mg/kg)was a high dose.4 replicates were used for production performance measurement,with 10 chickens per replicate;Two replicates,each with 15 chickens,were used for the study of the absolute weight and index of immune organs in chicks at different ages.The results showed that the growth promoting rates of experimental Groups B and C were significantly higher than those of the control group(P＜0.05).The Group B had a higher growth promoting rate for chicken,while Group C had a lower growth promoting rate than the Group B.The Group B and the Group C increased weight gain by 11％and 6.7％respectively at 3 stages of age,indicating that the growth promoting rate decreases with the increase of dietary addition level.Furthermore,it can be concluded that adding origanum extrac to the diet of broiler can promote their growth rate.When the level of origanum extrac added is 30 mg/kg,the effect on promoting growth rate of broiler is most significant.And thus Provide a theoretical basis for the application of origanum extract in broiler production.
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