Effect of supplementation of rosemary (Rosemarinus officinalis) leaves and multienzyme on growth performance and nutrient utilization of broiler chicken
2022
Sharma, J. K. | Karnani, M. | Choudhary, S. | Manju,
The present study was conducted on broiler chickens to observe the effect of supplementation of Rosemary (Rosemarinus officinalis) leaves and Multienzyme on the growth performance, digestibility of nutrients and nitrogen balance. The feeding trial was conducted under standard feeding and manage-mental conditions with broiler starter (1–21 days) and finisher (22–35 days) ration on two hundred and forty day old day old Vencobb broiler chicks which were randomly divided into 4 treatment groups (T1 to T4) with four replicates of 15 chicks each. Birds were offered basal feed as per the BIS (2007). The treatment groups consisted of control group (T1) which was fed only basal diet, group T2 was supplemented with 0.5 per cent rosemary leaves powder, group T3 with 0.05 per cent multienzyme, group T4 with 0.5per cent rosemary and 0.05 per cent multienzyme in basal feed. The supplementation of Rosemary (Rosemarinus officinalis) and multienzyme alone and in combination showed highly significant (P<0.01) effect on total body weight, body weight gain, feed conversion ratio, performance index, protein efficiency ratio, dry matter, crude protein and ether extract digestibility. Whereas dietary inclusion of rosemary and multienzyme alone and in combination had no influence on feed consumption and nitrogen balance in broiler birds. Therefore, based on results obtained, the present study revealed that the combination of rosemary at 0.5 per cent with multienzyme enhanced the overall performance of broilers.
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