Condensed Fish Press Water and Fish Liver Meal in Chick Rations ,

Abstract

NUMEROUS workers have investigated the supplementary effect of small amounts of animal protein feeds in diets containing vegetable proteins. Berry, Carrick, Roberts, and Hauge (1943) pointed out that the proteins of soybean oil meal were of excellent quality, but that rations containing soybean oil meal as a sole protein supplement were deficient in certain vitamins which were adequately supplied by additions of small amounts of animal protein feeds. This work has been confirmed by Hammond and Titus (1944), who mention the necessity of supplementing a diet containing soybean oil meal as the sole protein supplement with adequate vitamins and minerals. The same workers, however, state that “sardine fish meal is of outstanding value as a protein supplement to soybean meal.” Whether sardine meal is of value purely as a protein supplement (chiefly as a contributor of methionine) or partly as a vitamin supplement (choline and other vitamins) has not been .