Influence of copper sulfate and tribasic copper chloride on feed intake preference in finishing pigs (2013)

Authors

Kyle F. Coble
Korrin N. Card
Joel M. DeRouchey
Michael D. Tokach
Jason C. Woodworth
Robert D. Goodband
Steven S. Dritz
J Usry

Keywords

Swine day, 2013; Kansas Agricultural Experiment Station contribution; no. 14-044-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 1092; Finishing pig; Copper; Feed intake; Preference

Abstract

A total of 150 pigs (PIC 327 × 1050; initially 191 lb BW) were used in a 15-d study to determine if pigs have a preference for diets that contain added Cu from either copper sulfate (CuSO4) or tribasic copper chloride (TBCC). Pens of pigs were randomly allotted to 1 of 3 dietary preference comparisons with 10 replications per comparison. Treatment diets used were a corn-soybean meal control with no supplemental Cu, or the control diet with 150 ppm of added Cu from either CuSO4 or TBCC. Pens contained two feeders, each with 1 of 2 treatment diets with feeders rotated once daily within each pen. The comparisons tested were: (1) control vs. CuSO4, (2) control vs. TBCC, and (3) CuSO4 vs. TBCC. For comparison 1, pigs consumed more (P<0.01) of the control diet than the added CuSO4 diet (3.68 vs. 2.02 lb/d), which translated into pigs eating 66% of their daily intake from the control diet and 34% from the CuSO4 diet. For comparison 2, pigs consumed more (P<0.03) of the control diet than the TBCC diet (3.30 vs. 2.49 lb/d), which equated to 57% of their daily intake from the control diet and 43% from the TBCC diet. For comparison 3, pigs consumed more (P<0.01) of the diet containing TBBC than that with the added CuSO4 (3.50 vs. 1.96 lb/d), which was equivalent to 65% vs. 35% of daily intake, respectively. In summary, when given a choice, pigs preferred to consume a diet without high levels of added Cu; however, when given the choice between diets containing either Cu source, pigs preferred diets containing TBCC.; Swine Day, Manhattan, KS, November 21, 2013

Recommended Citation

Coble, Kyle F.; Card, Korrin N.; DeRouchey, Joel M.; Tokach, Michael D.; Woodworth, Jason C.; Goodband, Robert D.; Dritz, Steven S.; and Usry, J (2013) "Influence of copper sulfate and tribasic copper chloride on feed intake preference in finishing pigs (2013)," Kansas Agricultural Experiment Station Research Reports: Vol. 0: Iss. 10. https://doi.org/10.4148/2378-5977.7041