Dried Blood Meal as a Protein Source in Diets for Growing-Finishing Swine

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Abstract
A total of 444 crossbred, weanling pigs was used in a series of five experiments to evaluate levels of blood meal in swine diets. Old process, conventional, drum-dried blood meal was used in Experiments I and II and a rotary steam dried product was used in the last three experiments. Rate and efficiency of gain were inferior when pigs were fed diets containing 4% drum-dried blood meal replacing an equivalent amount of soybean meal protein. Lysine supplementation to this diet resulted in pig performance similar to that of pigs fed the soybean meal control diet. Eight percent of rotary steam dried blood meal significandy reduced rate of gain from 25 to 55 kg and feed efficiency was also reduced. Diets containing 6% rotary steam dried blood meal during the growing period and 5.5% during the finishing period gave pig performance equal to that for pigs fed the control diet, although blood meal furnished all of the supplemental protein to corn in the finishing diets. There were no significant differences in rate or efficiency of gain of pigs receiving their supplementary protein as soybean meal, equal parts of blood meal and meat meal, soybean meal-blood meal or soybean meal-meat meal when diets were equal in lysine content based on an availability of 70% lysine in blood meal. However, significantly less feed was consumed during the growing period by pigs receiving diets containing soybean meal combined with blood or meat meal compared to pigs fed the soybean meal diet. Copyright © 1977. American Society of Animal Science . Copyright 1977 by American Society of Animal Science.