author(s)
SK George, MK Muhammad Aslam, MT Dipu and K Lalu

abstract
The present study was conducted to examine the effect of supplementaion of broken maize on milk production in an organised dairy farm situated at an altitude of 1100m above sea level. The cows in the farm were offered concentrate mixture as per the package of practices reccomendations (2016) of Kerala Veterinary & Animal Sciences University and with adlibitum Setaria grass while housed inside the shed. Cows were left out for grazing for 7 hrs in the forenoon. The study was conducted for a continous period of 9 months of which the milch cows were unsupplemented with broken maize for the first three months, followed by supplementation with 0.5kg broken maize/cow/dayfor the next three months and with 1kg broken maize/cow/day for the last three months. The data regarding milk production was recorded daily and was analysed statistically to examine the effect of feeding intervention on milk production. The average milk yield (L/cow/day) of the herd before broken maize supplementation was 6.77±0.54. When broken maize was supplemented at a level of 1kg/cow/day the mean milk production significantly improved to 9.03±0.61(L/cow/day). The study concluded that broken maize supplementation improves the milk production of crossbred dairy cows reared at high altitudes.