author(s)
PB Tembhurne, SD Borkar, SW Bonde, MM Kadam, KK Khose, DV Patil and SG Jadhao

abstract
One hundred and twenty (n=120), day old broiler chicks (Vencobb-430) were divided into four groups; one control and three treatment groups with three replicates of ten chicks in each and reared for a period of thirty five days. Four experimental diets were prepared (BIS 2007), T1 supplemented basal diet, T2 basal diet + 0.5% (500 gm NuPro® / 100 kg of feed), T3 basal diet + 1.0% (1000 gm NuPro® / 100 kg of feed)) and T4 basal diet+ 1.5% (1500 gm NuPro® / 100 kg of feed) of dietary nucleotide rich yeast extract. The treatment means of live body weight, cumulative weight gain and feed consumption of birds from groups T2, T3 and T4 receiving diet containing 0.5%, 1% and 1.5% dietary nucleotide rich yeast extract, respectively were significantly (P<0.05) higher than control group T1. However, the birds from treatment group T2 receiving diet with 0.5% dietary nucleotide rich yeast extract was recorded significantly (P<0.05) highest means of live body weights and cumulative weight gain as compared to all other treatment groups. The feed conversion ratio was significantly (P<0.05) better in treatment groups T2, T3 and T4 compared than control group T1. The highest net profit (Rs,/kg) was recorded in treatment group T2 receiving diet containing 0.5% dietary nucleotide rich yeast extract followed by treatment groups T3, T4 and T1. Thus, it is concluded that incorporation of dietary nucleotide rich yeast extract at 0.5% level in broiler diet improves growth performance in terms of live body weight, gain in weight, feed intake and feed conversion ratio which increased profitability in broiler production.