Fish Solubles and Liquid Fish for Growing and Fattening Swine

Abstract

Fish solubles and liquid fish have been compared for their supplemental value to an all-plant basal ration of corn, soybean oil meal, sun-cured alfalfa meal, and minerals for growing and fattening swine in dry lot. Two trials were conducted in which the basal ration was 1. Fed alone, 2. Supplemented with one percent fish solubles, or 3. Supplemented with two percent fish solubles. In the second trial a fourth lot was added in which the basal ration was supplemented with two percent liquid fish. In both feeding trials the results showed that the basal ration was deficient as measured by growth rate and feed required per unit of gain. Fish solubles, at the low levels fed, definitely supplied nutritive factors which improved the basal ration for pigs fed in dry lot in this experiment. The two percent level of fish solubles gave a considerably greater increase in growth than one percent. In the second trial, the pigs receiving two percent of fish solubles showed a significantly greater growth response than did the pigs receiving two percent of liquid fish. Two percent of liquid fish was equal to about one percent of fish solubles. The results obtained indicate that condensed fish solubles and liquid or semi-solid fish contain dietary factors other than protein, which greatly improve the nutritive value of a corn-soybean meal ration for growing-fattening pigs. Copyright © . .