Vol. 12, Issue 5 (2023)

The two groups were fed the same concentrate mixture containing 16.64 per cent DCP and 70.40 per cent of TDN for 90 days The average daily gain and FCE of different treatment groups were 188±0.01 and 217 ±0.01 gm; 9.07±1.16 and 7.78±0.21 in control (T₁) and treatment (T₂) groups respectively. Significant (p<0.05) difference were observed in fifth and sixth fortnight in between the two treatment groups in respect of body weight gain per day and FCE. Significant (p<0.05) difference were observed in overall mean between the two treatment groups in respect of body weight gain per day. However, non-significant (p<0.05) difference was between the groups in respect of linear body measurement but body measurement (Body length, heart girth and height at withers) were highest in treatment (T₂) followed by control (T₁). DM intake was highest in treatment (T₂) followed by control (T₁). Significant (p<0.01) difference were observed in treatment (T₂) between fourth to sixth fortnight and over all mean in respect of dry matter intake. The blood constituent viz. serum glucose, serum total protein, haemoglobin, serum calcium were within the normal range for crossbred calves but were highest in treatment (T₂) followed by control (T₁). The cost per kg gain in body weight was lowest (Rs. 65.32) in treatment (T₂) group in comparison to control (T₁) (Rs. 66.28). The result suggested that crossbred calves can be reared on feeding of complete feed block having Para grass (50%) and paddy straw (50%) (out of 60% roughage) + Concentrate mixture + molasses in the ratio 60: 30: 10. with growth performance and economic advantage of rearing calves.