Measuring and managing pain and stress associated with castration in cull beef bulls
The objectives of this research were to evaluate the effects of: 1) castration, 2) castration method (band vs. surgical) and 3) use of analgesia on measures of behavior, feedlot performance, and physiological responses in cull bulls. In the first study, Angus, Hereford, and Angus crossbred bulls (n = 20; initial BW = 384 ± 59.3 kg; 336 ± 20.1 d old) were housed in feedlot pens equipped with the ability to measure individual daily feed intake. A balanced randomized block design using a 2 × 2 factorial arrangement of treatments was utilized. Factors included: 1) castration method (band vs. surgical), ...
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