The study was undertaken on fifteen lactating crossbred cows to see the impact of three levels of formaldehyde treated of groundnut cake (T1-0 Percent, T2-0.5 g formaldehyde per 100 g CP, T3-1.0g formaldehyde per 100 gm CP) in the concentrate mixture of ration on cost of feeding of animals and feed cost of milk production based on actual market prices. DMI/100kg body weight was significantly (P<0.01) higher in T3 and T2 as compared to T1. However, the differences between T2 and T3 groups were non-significant. The TDNI per 100 kg body weight was significantly (P<0.01) higher in T3 treatment as compared to T2 and T1 treatments. The average daily feed cost per animal on actual prices was Rs. 47.34, 48.16 and 50.78 in T1, T2 and T3, respectively, While average feed cost per kg milk yield was Rs. 6.42, 6.73 and 5.75 in T1, T2 and T3 groups, respectively.
Crossbred cows, feed cost, formaldehyde, Berseem, wheat straw, milk yield
