title: The effect of corn distiller's dried grains with solubles, ractopamine, and conjugated linoleic acid on the carcass performance, meat quality, and shelf-life characteristics of fresh pork following three different storage methods.
abstract: The objective of this study was to evaluate dietary corn distiller's dried grains with solubles (DDGS), ractopamine hydrochloride (RAC), and conjugated linoleic acid (CLA) on growth performance, carcass and fat quality, and shelf-life of fresh pork from finishing pigs. Barrows (n=72) were fed one of eight treatments consisting of two diet sources (corn-soy and corn-soy+20% DDGS), two levels of RAC (0 and 7.4ppm), and two levels of CLA (0 and 0.6%) for 28days. Loins were portioned (n=3) into one of three storage conditions (fresh, cold, frozen); each followed with seven days of retail display. Feeding RAC improved ADG and G:F (P<0.05), whereas DDGS decreased belly fat firmness (P<0.05). Dietary DDGS increased total polyunsaturated fatty acids in jowl and belly samples and increased Iodine Value (IV) (P<0.05), but addition of CLA decreased IV. Dietary DDGS, RAC, or CLA had minimal impact on pork quality following varied storage methods.
authors: Division of Animal Sciences, University of Missouri, Columbia, MO, 65211, United States. jwr535@mail.missouri.edu
authors: J W
authors: JW
authors: Rickard
authors: B R
authors: BR
authors: Wiegand
authors: D
authors: D
authors: Pompeu
authors: R B
authors: RB
authors: Hinson
authors: G D
authors: GD
authors: Gerlemann
authors: R
authors: R
authors: Disselhorst
authors: M E
authors: ME
authors: Briscoe
authors: H L
authors: HL
authors: Evans
authors: G L
authors: GL
authors: Allee
mesh_terms: D000273:Adipose Tissue / Q000187:drug effects; D000821:Animal Feed; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D001823:Body Composition / Q000187:drug effects; D004032:Diet / Q000662:veterinary*; D005511:Food Handling / Q000379:methods; D061353:Food Storage / Q000379:methods*; D044243:Linoleic Acids, Conjugated / Q000008:administration & dosage*; D008460:Meat / Q000032:analysis*; D010627:Phenethylamines / Q000008:administration & dosage*; D013025:Glycine max; D013552:Swine; D003313:Zea mays
chemical_list: D044243:Linoleic Acids, Conjugated; D010627:Phenethylamines; C046938:9,11-linoleic acid; C060897:ractopamine