Relationship between depression score and acid-base status in Japanese black calves with diarrhea
2007
Nakagawa, M.(Hokushin Agricultural Mutual Aid Association, Iiyama, Nagano (Japan)) | Suzuki, K. | Taguchi, K.
We evaluated the relationship between depression score and acid-base status in 84 purebred and crossbred Japanese Black calves. The bicarbonate (p0.001) and base excess concentrations (p0.001) were significantly and negatively correlated with the depression scores of the calves. The proposed diagnostic cutoff point for a depression score that indicates severe metabolic acidosis (BE -10 mM) is 6.5 based on analysis of the ROC curve. The sensitivity and specificity were 88.4% and 81.2%, respectively. The depression scoring system is a useful tool for evaluation of the acid-base status of purebred and crossbred Japanese Black calves. In addition, a depression score of 6.5 suggests severe metabolic acidosis and that intravenous infusion of sodium bicarbonate solution is necessary.
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