An evaluation of astaxanthin as a nutraceutical growth promoter in starter diets for weanling pigs

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dc.contributor.author Bergstrom, J.R.
dc.contributor.author Nelssen, Jim L.
dc.contributor.author Tokach, Michael D.
dc.contributor.author DeRouchey, Joel M.
dc.contributor.author Goodband, Robert D.
dc.contributor.author Dritz, Steven S.
dc.date.accessioned 2009-10-20T13:45:59Z
dc.date.available 2009-10-20T13:45:59Z
dc.date.issued 2009-10-20T13:45:59Z
dc.identifier.uri http://hdl.handle.net/2097/1862
dc.description.abstract A nursery study was conducted at the KSU Swine Teaching and Research Farm to evaluate the effect of increasing dietary astaxanthin (0, 5, 10, and 25 ppm) on weanling pig performance. Astaxanthin is a carotenoid found in various plants, algae, and seafood that exhibits antioxidant and potential anti-inflammatory properties that may be beneficial during times of stress and reduced immunity, such as weaning. A total of 210 pigs (initially 12.6 lb) were used in the 28-d experiment. Pigs were blocked by weight and randomly allotted to one of five dietary treatments. Pigs were fed simple corn-soybean meal-dried, whey-based diets during Phase 1 (d 0 to 14); and corn-soybean meal diets in Phase 2 (d 14 to 28). Treatments consisted of a basal diet for each phase without added feed-grade antibiotic, or the basal diet with 5, 10, or 25 ppm added astaxanthin without added feed-grade antibiotic; or the basal diet with a feed-grade antibiotic (Neo-Terramycin with 140 g of neomycin and 140 g of oxytetracycline per ton). For the d 0 to 14 (Phase 1) period, ADG and F/G were improved (P<0.05) by including a feed-grade antibiotic in the diet. Average daily gain and F/G of pigs fed astaxanthin was not different than control pigs. Pigs fed a feed-grade antibiotic during Phase 1 were heavier (P<0.05) on d 14 than were pigs fed 0, 5, or 10 ppm astaxanthin. They also tended to be heavier (P<0.10) than pigs fed 25 ppm astaxanthin. For the overall Phase 2 period (d 14 to 28), pigs fed antibiotic had greater (P < 0.05) ADG than pigs fed 0, 5, and 25 ppm astaxanthin; the pigs fed 10 ppm astaxanthin had intermediate ADG. Pigs fed antibiotic had greater (P<0.05) ADFI than pigs fed all other treatments. Feed efficiency was improved (quadratic, P<0.07) as the level of astaxanthin increased to 10 ppm and then returned to control values at the 25 ppm level. Pigs fed antibiotic had poorer (P<0.05) F/G than pigs fed 0, 5, or 10 ppm astaxanthin, and pigs fed 25 ppm astaxanthin had poorer (P<0.05) F/G than pigs fed 10 ppm astaxanthin. Overall (d 0 to 28), ADG, ADFI, and average weight on d 28 were improved (P<0.05) by including a feed-grade antibiotic in the diet. Pigs fed 25 ppm astaxanthin or a feed-grade antibiotic had poorer (P<0.05 and P<0.10, respectively) F/G than pigs fed 10 ppm astaxanthin. In conclusion, the growth performance of pigs receiving 5, 10, or 25 ppm of astaxanthin in the Phase 1 and Phase 2 diets was not different than that of pigs fed the negative control diet. However, ADG and ADFI were improved by including a feed-grade antibiotic in the Phase 1 and Phase 2 diets. en_US
dc.publisher Kansas State University. Agricultural Experiment Station and Cooperative Extension Service en_US
dc.relation.isPartOf Kansas Agricultural Experiment Station contribution; no. 08-121-S en_US
dc.relation.isPartOf Swine day, 2007 en_US
dc.relation.isPartOf Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 985 en_US
dc.subject Swine en_US
dc.subject Antibiotics en_US
dc.subject Astaxanthin en_US
dc.title An evaluation of astaxanthin as a nutraceutical growth promoter in starter diets for weanling pigs en_US
dc.type Conference paper en_US
dc.date.published 2007 en_US
dc.citation.epage 87 en_US
dc.citation.spage 83 en_US
dc.description.conference Swine Day, 2007, Kansas State University, Manhattan, KS, 2007 en_US
dc.contributor.authoreid jnelssen en_US
dc.contributor.authoreid mtokach en_US
dc.contributor.authoreid dritz en_US
dc.contributor.authoreid jderouch en_US


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