Influence of changes in level of feeding on milk production

Abstract
The influence upon milk production of changes in level of feeding and in proportion of bulky foods has been investigated, using all available experimental material. The experimental results show that increases in level of feeding, to rates well in excess of conventional English standards, are capable of giving substantial increases in milk production (Fig. 1). It is shown that physiological efficiency falls off as food intake is increased. A curve representing physiological efficiency has been constructed by taking account of changes in live weight as well as changes in yield of milk (Fig. 4).