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Full-Text Articles in Life Sciences
Respiratory Viruses And Antibodies In Preconditioned South Dakota Feeder Calves, M.L. Vickers, R.H. Pritchard
Respiratory Viruses And Antibodies In Preconditioned South Dakota Feeder Calves, M.L. Vickers, R.H. Pritchard
South Dakota Beef Report, 1986
Nasal swabs and blood samples were taken from a t o t a l of 400 calves on a preconditioning evaluation program during 2 years. Fifty calves from each of four South Dakota ranches were divided into preconditioned (PC) and control (CO) groups and sampled both on the ranch and in the feedlot. The preconditioning program followed the recommendations of the South Dakota Beef Cattle Improvement Association and the Extension Service and included vaccination with live virus vaccines for infectious bovine rhinotracheitis (IBR), bovine viral diarrhea (BVD) and parainfluenza-3 virus (PI3). In both years, viruses were isolated from calves on …
Effects Of Preconditioning On Pre- And Postshipment Performance And Health Of Feeder Steers, J.K. Swann, R.H. Pritchard, M.A. Robbins
Effects Of Preconditioning On Pre- And Postshipment Performance And Health Of Feeder Steers, J.K. Swann, R.H. Pritchard, M.A. Robbins
South Dakota Beef Report, 1986
Four hundred steer calves were used to determine the effect of preconditioning on performance and health of calves fed either a high or low energy diet. In each of 2 years, 200 steer calves were selected from four western South Dakota ranches to participate in the study. Preconditioned (PC) calves were treated according to the South Dakota Beef Cattle Improvement Association and Cooperative Extension Service's guidelines for the "Green Tag" program. Preconditioning and implanting with zeranol produced a heavier calf at market time. No difference in weight loss during transit was noted between the PC and control treatments (CO), but …