Phase I: Studies on the performance of Large White Yorkshire pure bred pigs under optimum management conditions.1971 to 1980 during IV and V five year plan period.

Phase II: Studies on the performance of indigenous pigs under improved management conditions during VI five year plan period 1980-1985.

Phase III: Studies on the performance of crossbred pigs 50% and 75% LWYpigs were undertaken from 1985 to 2009.