Show find cost of milk and butterfat production by periodically weighing hing the of a dairy cow and testing it for fat and by keeping records of the kind and the amount of feed consumed by her it la Is an easy matter at the close of a year to determine the cost of milk and butterfat production in terms of feed consumed armed with such records the breeder of dairy cattle Is pro pre pared to select the most efficient producers for breeding purposes an thereby make comparatively rapid strides in developing outstanding producing strains the poultry breeder has no greater to overcome in building high egg producing flocke |