Effects of super-dosing phytase in diets with adequate phosphorus on finishing pig growth performance and carcass characteristics

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dc.contributor.author Langbein, Kari Beth
dc.contributor.author Woodworth, Jason C.
dc.contributor.author Goodband, Robert D.
dc.contributor.author Tokach, Michael D.
dc.contributor.author Nelssen, Jim L.
dc.contributor.author Dritz, Steven S.
dc.contributor.author DeRouchey, Joel M.
dc.date.accessioned 2014-04-30T15:59:00Z
dc.date.available 2014-04-30T15:59:00Z
dc.date.issued 2014-04-30
dc.identifier.uri http://hdl.handle.net/2097/17665
dc.description.abstract A total of 274 finishing pigs (PIC 1050 × 327, initially 129 lb) were used in a 78-d study to compare the effects of adding high levels of three different sources of phytase (super-dosing) on growth performance and carcass characteristics of finishing pigs. Pigs were randomly allotted to pens with 7 or 8 pigs per pen and 9 replications per treatment. Dietary treatments included a corn-soybean meal–based control diet that was formulated to meet the available P requirements of the pigs without any added phytase, or three diets that were formed by adding 2,000 FTU/kg of phytase from 1 of 3 different phytase sources to the basal diet. The three phytase sources were Quantum Blue 5 G (AB Vista, Chesterfield, MO), Ronozyme HiPhos (GT) 2500 (DSM Nutritional Products, Parsippany, NJ), or Optiphos 1000 (Enzyvia, Sheraton, IN). Overall, regardless of source, super-dosing phytase had no effect (P > 0.26) on ADG, ADFI, or F/G; furthermore, there were no effects (P > 0.36) on any of the carcass criteria measured. In conclusion, in this environment with nutritionally adequate diets, this study suggests that super-dosing phytase had no beneficial effects on finishing pig growth or carcass performance. en_US
dc.language.iso en_US en_US
dc.publisher Kansas State University. Agricultural Experiment Station and Cooperative Extension Service en_US
dc.relation.isPartOf Swine day, 2013 en_US
dc.relation.isPartOf Kansas Agricultural Experiment Station contribution; no. 14-044-S en_US
dc.relation.isPartOf Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 1092 en_US
dc.subject Phosphorous en_US
dc.subject Phytase en_US
dc.subject Finishing pig en_US
dc.title Effects of super-dosing phytase in diets with adequate phosphorus on finishing pig growth performance and carcass characteristics en_US
dc.type Conference paper en_US
dc.date.published 2013 en_US
dc.citation.epage 131 en_US
dc.citation.spage 128 en_US
dc.description.conference Swine Day, Manhattan, KS, November 21, 2013 en_US
dc.contributor.authoreid jwoodworth en_US
dc.contributor.authoreid goodband en_US
dc.contributor.authoreid mtokach en_US
dc.contributor.authoreid jnelssen en_US
dc.contributor.authoreid dritz en_US
dc.contributor.authoreid jderouch en_US


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