Evaluation of a rendered poultry mortality-soybean meal product as a supplemental protein source for pig diets

Dehydrated/rendered broiler mortality-soybean meal products (DPS) were evaluated in two trials as high-protein feedstuffs for pig diets. Broiler mortalities, collected and frozen on-farm and transported to a central facility, were minced, blended with soybean meal, and dried with a final product tem...

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Bibliographic Details
Published in:Journal of animal science 2004-04, Vol.82 (4), p.1071-1078
Main Authors: Myer, R.O, Brendemuhl, J.H, Leak, F.W, Hess, J.B
Format: Article
Language:English
Subjects:
Animal Feed
Animal Husbandry - methods
Animal Nutritional Physiological Phenomena
Animal productions
Animals
Biological and medical sciences
Chickens
Diet - veterinary
Dietary Proteins - administration & dosage
Female
Fundamental and applied biological sciences. Psychology
Male
Random Allocation
Soybean Proteins - administration & dosage
Swine - growth & development
Terrestrial animal productions
Vertebrates
Waste Management
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Summary:Dehydrated/rendered broiler mortality-soybean meal products (DPS) were evaluated in two trials as high-protein feedstuffs for pig diets. Broiler mortalities, collected and frozen on-farm and transported to a central facility, were minced, blended with soybean meal, and dried with a final product temperature of 120 to 130 degrees C. The final DPS products used contained approximately 30 and 45% (DM basis) dried broiler mortality for the first and second trials, respectively (DPS1 and DPS2). The first trial involved 50 young, growing pigs (9 to 26 kg) and the second, 72 growing and finishing pigs (27 to 111 kg). The trials compared corn-based diets containing either soybean meal (SBM; 48%) or DPS products as the supplemental protein source. The DPS products averaged 50% CP and 2.9% total lysine; crude fat content of DPS used in the first trial was 8%, and for the second, 14.6% (as-fed basis). The ADG of pigs fed the DPS diets in either trial was similar to that of pigs fed the SBM control diets. In the second trial, pigs fed DPS2 had an overall average G:F ratio that was 9% better (P < 0.01) than that of pigs fed the SBM control diets. Carcass characteristics and pork quality from pigs of the growing-finishing trial were not affected by dietary treatment. Subjective carcass fat firmness scores indicated slightly softer fat (P < 0.05) from pigs fed DPS2. The mincing, blending with SBM, and dehydration of frozen stored on-farm broiler mortalities produced a safe and nutritious protein feedstuff for pigs, while also offering a viable disposal option.
ISSN:0021-8812
1525-3163