Comparative effects of dietary copper, zinc, essential oils, and chlortetracycline on nursery pig growth performance

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dc.contributor.author Feldpausch, Julie Ann
dc.contributor.author DeJong, Jon A.
dc.contributor.author Tokach, Michael D.
dc.contributor.author Dritz, Steven S.
dc.contributor.author Woodworth, Jason C.
dc.contributor.author Amachawadi, Raghavendra G.
dc.contributor.author Scott, Harvey M.
dc.contributor.author Nelssen, Jim L.
dc.contributor.author Goodband, Robert D.
dc.date.accessioned 2015-04-22T20:28:06Z
dc.date.available 2015-04-22T20:28:06Z
dc.date.issued 2015-04-22
dc.identifier.uri http://hdl.handle.net/2097/18988
dc.description Swine Industry Day, 2014 is known as Swine Day, 2014 en_US
dc.description.abstract A total of 350 weaned pigs (PIC 1050; initially 13.3 lb) were used in a 47-d study to compare the effects of feeding antibiotic alternatives (copper, zinc, and essential oils), alone or in combination, on nursery pig performance. Pigs were allotted to pens at weaning (d 0) and fed a common starter diet with no antimicrobial for 5 d before the start of the experiment. On d 5, pens of 5 pigs were allotted to 1 of 10 dietary treatments in a randomized complete block design with 7 replications per treatment. Dietary treatments were arranged in a 2 × 2 × 2 + 2 factorial with main effects of added copper sulfate (CuSO4; 0 vs. 125 ppm Cu), added zinc oxide (ZnO; none vs. 3,000 ppm Zn from d 5 to 12 and 2,000 ppm Zn from d 12 to 33), and Regano EX (0 vs. 45 g/ton essential oils blend; Ralco Animal Nutrition, Marshall, MN). The 2 additional treatments were growth-promoting and therapeutic levels of chlortetracycline (CTC at 50 or 400 g/ton). Pigs were fed experimental diets from d 5 to 33 followed by a common corn-soybean meal–based diet without any antimicrobial, essential oils, or pharmacological levels of Cu or Zn from d 33 to 47. To comply with FDA guidelines, CTC was removed on d 19 from the diet of pigs fed 400 g/ton CTC, then added again from d 20 to 33. All diets contained 16.5 ppm Cu and 165 ppm of Zn from the trace mineral premix. Essential oils had no effect on daily gain, but feeding CTC or pharmacological levels of Cu or Zn improved the growth rate of nursery pigs. Carryover effects from any of these dietary treatments on subsequent nursery growth performance were minimal. Although there were no improvements in feed efficiency due to Cu or Zn, the inclusion of an essential oils blend worsened feed and caloric efficiencies. 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, 2014 en_US
dc.relation.isPartOf Kansas Agricultural Experiment Station contribution; no. 15-155-S en_US
dc.relation.isPartOf Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 1110 en_US
dc.subject Chlortetracycline en_US
dc.subject Nursery pig en_US
dc.subject Antibiotic en_US
dc.subject Essential oil en_US
dc.subject Copper en_US
dc.subject Zinc en_US
dc.title Comparative effects of dietary copper, zinc, essential oils, and chlortetracycline on nursery pig growth performance en_US
dc.type Conference paper en_US
dc.date.published 2014 en_US
dc.citation.epage 16 en_US
dc.citation.spage 8 en_US
dc.description.conference Swine Day, Manhattan, KS, November 20, 2014 en_US
dc.contributor.authoreid mtokach en_US
dc.contributor.authoreid dritz en_US
dc.contributor.authoreid agraghav en_US
dc.contributor.authoreid jnelssen en_US
dc.contributor.authoreid goodband en_US
dc.contributor.authoreid jwoodworth en_US


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