A field trial evaluation of the effectiveness and benefit of cydectin long-acting injectable and ivomec injectable as used one time in grazing stocker cattle.
Use of moxidectin long-acting injectable and ivermectin injectable in female Bos taurus beef-type calves was evaluated in terms of efficacy (fecal egg counts) and performance parameters (weight gain). In this 150-day study, moxidectin-treated calves gained 20% more weight than did ivermectin-treated and control calves. Mean fecal egg count reductions ranged from 76.7 to 99.0 for moxidectin and -0.8 to 83.4 for ivermectin. Moxidectin long-acting injection provided efficacious (immediate as well as long-term) egg count suppressions as well as enhanced animal productivity (weight gains). The study also showed that Cooperia spp appear poised to present the most immediate challenges once long-acting macrocyclic lactone treatments become available.
Yazwinski
T A
TA
Department of Animal Science, University of Arkansas, Fayetteville, AR 72701, USA.
Tucker
C A
CA
Johnson
Z
Z
Powell
J
J
D000818:Animals; D000977:Antiparasitic Agents / Q000008:administration & dosage / Q000627:therapeutic use*; D002417:Cattle; D002418:Cattle Diseases / Q000188:drug therapy* / Q000469:parasitology; D005243:Feces / Q000469:parasitology; D005260:Female; D007279:Injections, Subcutaneous / Q000662:veterinary; D007411:Intestinal Diseases, Parasitic / Q000188:drug therapy / Q000662:veterinary*; D007559:Ivermectin / Q000008:administration & dosage / Q000627:therapeutic use*; D018942:Macrolides / Q000008:administration & dosage / Q000627:therapeutic use; D009349:Nematode Infections / Q000188:drug therapy / Q000662:veterinary*; D010270:Parasite Egg Count; D016896:Treatment Outcome
D000977:Antiparasitic Agents; D018942:Macrolides; D007559:Ivermectin; C027837:moxidectin