The effects of crude glycerol, dried distillers grains with solubles, Ractopamine HCl, NutriDense corn, and feeder adjustment on growing and finishing pig performance

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dc.contributor.author Duttlinger, Alan William
dc.date.accessioned 2013-04-25T21:25:36Z
dc.date.available 2013-04-25T21:25:36Z
dc.date.issued 2013-04-25
dc.identifier.uri http://hdl.handle.net/2097/15622
dc.description.abstract A total of 6,858 pigs were used in 6 experiments to evaluate the effects of crude glycerol, dried distillers grains with solubles (DDGS), Ractopamine HCl (RAC), NutriDense corn, and feeder adjustment on growing and finishing pig performance. In Exp. 1, pigs were fed diets with 0, 2.5, or 5% crude glycerol with 0 or 20% DDGS. Adding DDGS increased ADFI and decreased G:F with no differences for pigs fed glycerol. Neither glycerol nor DDGS affected any carcass characteristics. Pigs fed DDGS had increased iodine value in carcass fat. In Exp. 2, pigs were fed diets with 0 or 5% glycerol with 0 or 7.5 ppm RAC. Feeding RAC increased ADG and G:F and decreased ADFI while glycerol tended to improve G:F. Ractopamine HCl improved carcass traits. Loin chop drip loss worsened when glycerol and RAC were added separately, however, drip loss decreased when the combination of both were fed. Glycerol did not affect loin characteristics. Neither RAC nor glycerol influenced iodine value of carcass fat. Exp. 3 and 4 were conducted to determine the 4th limiting amino acid in diets containing NutriDense corn. In Exp. 3, pigs fed the positive control and the diet with added Ile, Trp, and Val (in combination) had greater ADG. Pigs fed added Ile or Trp had greater ADG than pigs fed the negative control indicates these amino acids were co-4th limiting for 37 to 59 kg pigs. In Exp. 4, pigs fed the positive control, added Trp, or the combination of added Ile, Trp and Val had greater ADG then pigs fed the negative control or pigs fed either Ile or Val indicates these amino acids were co-4th limiting for 77 to 100 kg pigs. Exp. 5 and 6 evaluated feeder adjustment on growth performance of finishing pigs. In Exp. 5, reducing feeder opening decreased ADFI. In Exp. 6, pigs were fed at three feeder opening and either a corn-soybean meal or byproduct-based diet. Diet type did not affect pig performance. Widening feeder openings increased ADG and ADFI. Feeder setting tended to influence G:F with the best G:F at the intermediate opening. en_US
dc.language.iso en en_US
dc.publisher Kansas State University en
dc.subject Glycerol en_US
dc.subject Dried distillers grain with solubles en_US
dc.subject Ractopamine HCl en_US
dc.subject Swine en_US
dc.subject Finishing en_US
dc.subject Growing en_US
dc.title The effects of crude glycerol, dried distillers grains with solubles, Ractopamine HCl, NutriDense corn, and feeder adjustment on growing and finishing pig performance en_US
dc.type Thesis en_US
dc.description.degree Master of Science en_US
dc.description.level Masters en_US
dc.description.department Department of Animal Sciences and Industry en_US
dc.description.advisor Joel M. DeRouchey en_US
dc.subject.umi Agriculture, General (0473) en_US
dc.subject.umi Animal Sciences (0475) en_US
dc.date.published 2013 en_US
dc.date.graduationmonth May en_US


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