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A total of 1,120 pigs (initial BW = 7.26 kg) were used in a study to evaluate the effects of 2 commercial mycotoxin binders and a liquid immunity enhancer product on growth performance of wean-to-finish pigs. Pigs were randomly assigned to 1 of 4 treatments balanced by initial average BW within gender with 10 replicate pens per treatment. Treatments were: (1) control standard phase-fed diets based on corn and soybean meal with DDGS (20 to 35%) fed for 132 d, (2) a control diet with mycotoxin binders Ref-1 fed from d 0 to 55 and Ref-2 fed from d 0 to 132, (3) a control diet with Ref-1 and Ref-2 fed from d 0 to 132, and (4) treatment 3 with a liquid immunity enhancer product administered through the water lines of pens continuously for 7 d every 3 wk. The mycotoxin binder products were added in the diets at the expense of corn. Pigs from each pen were weighed as a group and feed disappearance was determined every 2 wk to determine ADG, ADFI, and F/G.
Results of laboratory analysis showed that all mycotoxins tested in diet samples were below the practical quantitation limit. Overall, there were no treatment x sex interactions (P > 0.50). As expected, gender differences were noted as barrows had greater (P < 0.01) ADG and ADFI but poorer (P < 0.05) F/G than gilts. The addition of mycotoxin binders and liquid immunity enhancer product did not affect growth performance (P > 0.73) as all treatment groups had similar performance during the nursery (P > 0.28) and growing-finishing stages (P > 0.61).
Under the conditions of the present study, the products tested had no effect on growth performance of wean-to-finish pigs.
JY Jacela, SS Dritz, JM DeRouchey, MD Tokach, RD Goodband, and JL Nelssen. 2009. Swine Day, Kansas State University. 88: 202-206.
