Effect of surgical castration treatments on blood parameters and behavioral characteristics in Korean native cattle (Hanwoo)
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The animal welfare issues in cattle breeding include breeding environment, elimination, and castration. Among these, castration is unavoidable because it decreases cattle aggressiveness, improves meat quality, and enhances feed efficiency. In this study, the degree of stress associated with various methods of castration treatment was investigated for animal welfare in Hanwoo breeding. Cortisol levels dramatically increased right after castration in both the SoF and SoV groups. However, the increase in the SoF group was significantly (P＜0.05) higher than that in the SoV group, and the range of decrease was also smaller. Among the behav-ioral characteristics, standing was significantly (P＜0.05) higher in the SoV (374.93±21.51) and SoF (379.93±21.30) groups based on the behavioral time (min/12 hours) compared to that in the NC group (359.37±19.69). The SoF and SoV groups did not show any significant (P＜0.05) difference. In terms of be-havioral frequency, the NC group demonstrated a significantly (P＜0.05) high frequency of drinking, self-grooming, scratching, and rubbing, and a significantly (P＜0.05) less frequency of fighting behavior. The feeding time significantly (P＜0.05) decreased in the SoV and SoF groups, and their frequencies of pairwise grooming were significantly (P＜0.05) less. Based on the results, the cattle experienced less stress during castration by a veterinarian than during treatment using a move-stop.
Abstract
The animal welfare issues in cattle breeding include breeding environment, elimination, and castration. Among these, castration is unavoidable because it decreases cattle aggressiveness, improves meat quality, and enhances feed efficiency. In this study, the degree of stress associated with various methods of castration treatment was investigated for animal welfare in Hanwoo breeding. Cortisol levels dramatically increased right after castration in both the SoF and SoV groups. However, the increase in the SoF group was significantly (P＜0.05) higher than that in the SoV group, and the range of decrease was also smaller. Among the behav-ioral characteristics, standing was significantly (P＜0.05) higher in the SoV (374.93±21.51) and SoF (379.93±21.30) groups based on the behavioral time (min/12 hours) compared to that in the NC group (359.37±19.69). The SoF and SoV groups did not show any significant (P＜0.05) difference. In terms of be-havioral frequency, the NC group demonstrated a significantly (P＜0.05) high frequency of drinking, self-grooming, scratching, and rubbing, and a significantly (P＜0.05) less frequency of fighting behavior. The feeding time significantly (P＜0.05) decreased in the SoV and SoF groups, and their frequencies of pairwise grooming were significantly (P＜0.05) less. Based on the results, the cattle experienced less stress during castration by a veterinarian than during treatment using a move-stop.
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