Live Production and Carcass Characteristics of Broilers Fed a Blend of Poultry Fat and Corn Oil Derived from Distiller’s Dried Grains with Solubles (DDGS)

E.J. Kim¹,*, J. L. Purswell¹, J. D. Davis², R. E. Loar II³, and K. Karges³

¹ARS-USDA, Poultry Research Unit, Mississippi State, MS, 39762
²Department of Agricultural and Bioengineering, Mississippi State University, Mississippi State, MS, 39762
³POET Nutrition, Sioux Falls, SD, 57104

The objectives of this study were to evaluate the effects of a poultry fat (PF) and a new DDGS-derived corn oil (CO) on live performance and carcass characteristics of 49 d broilers. Four corn-soybean meal based diets were formulated with differing blends of PF and CO were fed to 6 replicate pens of 42 birds each. For each of the 3 feeding phase, all diets contained the same percentage of total fat, but differed in the composition of the fat blends. Diet 1 consisted of 100% PF while portions of fat in Diets 2, 3, and 4 were replaced with 25%, 75%, and 100% CO, respectively. On d 49, birds were processed and carcass, abdominal fat pad, and breast (fillet weights were determined. For the starter phase (0-18 d), there were no differences (P =0.05) in BW, BW gain, feed intake (FI) and FCR for birds fed the four treatments. For the grower phase (0-35 d), birds from treatments fed 75:25 (PF:CO), had increased (P =0.05) BW, BW gain, FI and decreased FCR. Birds fed diets with 0:100 (PF:CO) also saw the same significant increase in BW and BW gain; however, FCR was significantly higher for these birds when compared to the birds fed to the 75:25 (PF:CO) diets. There were no significant differences for the finisher phase (0-48 d) in BW, BW gain, FI, and FCR, but there was a trend where the 75:25 (PF:CO) resulted in an improvement in live production parameters. Pellet quality (PDI) of the grower and finisher pellets were improved with increasing amounts of CO (P =0.05). On d 49, live weights for birds fed the 0:100 (PF:CO) diets were lower (P =0.05) versus all other treatments, with a trend for lower carcass and breast weights and increased abdominal fat content. Results indicate that addition of a new DDGS-derived CO may improve broiler performance when blended with PF.