The specified fraction of the basic number of poultry eligible for rations and the acreage deduction have varied according to the supplies of feedingstuffs available. The number of birds eligible for rations on any one farm would not be exactly 100 in all the three months mentioned. If the Question means what were the rations in each of the months mentioned for a holding registered as having 100 poultry in 1939, assuming that the holding was not subject to acreage deduction in any of these months, the answer is: October, 1945, and October, 1947, 1 cwt.; July, 1947, 1¼ cwt.