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The objective of this study was to assess the effects of horn fly and gastrointestinal (GI) nematode control on the performance of stocker cattle grazing Bermudagrass in Louisiana. A total of 168 (56 per trial) weaned calves were available for 3 trials. Stocker cattle were stratified by sex and BW and randomly assigned to 2 replicate treatment groups. The treatments were 1) no horn fly or GI nematode control; 2) horn fly control administrated with insecticidal ear tags, sprays, and pour-ons; 3) GI nematode control administrated every 28 d with fenbendazole; and 4) both horn fly and GI nematode control. Lengths of the trials were 84, 98, and 112 d for trials 1, 2, and 3, respectively, and trials were initiated in early to mid-May of each year. Horn fly and fecal egg counts were conducted periodically. Stocker cattle treated for horn flies had lower (P |
