Effects of copper sulfate and zinc oxide on weanling pig growth and plasma mineral levels

dc.contributor.authorShelton, N.W.
dc.contributor.authorTokach, Michael D.
dc.contributor.authorDeRouchey, Joel M.
dc.contributor.authorHill, G.M.
dc.contributor.authorAmachawadi, R.G.
dc.contributor.authorNagaraja, Tiruvoor G.
dc.contributor.authorNelssen, Jim L.
dc.contributor.authorGoodband, Robert D.
dc.contributor.authorDritz, Steven S.
dc.description.abstractA total of 216 weanling pigs (PIC TR4 × 1050, initially 13.6 lb and 21 d of age) were used in a 42-d growth trial to compare the effects of supplemental zinc and copper and changing mineral regimens on growth performance and plasma mineral levels. The 6 dietary treatments included a 2 × 2 factorial arrangement with main effects of added copper from copper sulfate (0 or 125 ppm) and added zinc from zinc oxide (0 or 3,000 ppm from d 0 to 14 and 0 or 2,000 ppm from d 14 to 42). For the final 2 treatments, either zinc oxide alone or the combinations of zinc and copper were fed from d 0 to 14, with copper sulfate fed from d 14 to 42. There were 6 pens per treatment with 6 pigs per pen. All diets were supplemented with an additional 165 ppm zinc and 16.5 ppm copper from the trace mineral premix. Plasma was collected from 2 pigs per pen on d 14 and 42. From d 0 to 14, ADG, ADFI, and F/G were improved (P < 0.04) with the addition of dietary zinc. Copper supplementation also tended to increase (P < 0.07) ADFI from d 0 to 14. From d 14 to 42, added copper increased (P < 0.003) ADG and ADFI. Over the entire trial, continuous supplemental zinc increased (P < 0.03) ADG and tended to increase (P < 0.09) ADFI. Dietary copper also increased (P < 0.004) ADG and ADFI when fed from d 0 to 42. The most advantageous values for ADG and ADFI were seen in the treatment containing high levels of zinc from d 0 to 14 and high copper levels from d 14 to 42. The addition of either zinc or copper increased (P < 0.02) feed cost per pound of gain. However, income over feed cost was improved (P < 0.006) with the addition of copper, with the greatest value obtained when high zinc was fed from d 0 to 14 and high copper was fed from d 14 to 42. Plasma zinc levels were increased (P < 0.001) with zinc supplementation on d 14. These results indicate the optimal mineral regimen was supplementing zinc oxide from d 0 to 14 and copper sulfate from d 14 to 42.en_US
dc.description.conferenceSwine Day, Manhattan, KS, November 19, 2009en_US
dc.publisherKansas State University. Agricultural Experiment Station and Cooperative Extension Serviceen_US
dc.relation.isPartOfSwine day, 2009en_US
dc.relation.isPartOfKansas Agricultural Experiment Station contribution; no. 10-014-Sen_US
dc.relation.isPartOfReport of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 1020en_US
dc.subjectGrowth promotionen_US
dc.titleEffects of copper sulfate and zinc oxide on weanling pig growth and plasma mineral levelsen_US
dc.typeConference paperen_US


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