Economic effects of subclinical chicken anemia agent infection in broiler chickens.

摘要: To evaluate the economic effects of subclinical chicken anemia agent (CAA) infection on broiler performance, clinically normal flocks were grouped into two categories: A) in which none 10 birds sampled at slaughter had antibody to CAA, and B) six or more similarly CAA antibody. Production performance parameters 25 each category compared. No statistically significant differences found between A B major production such as sex, feed manufacturer, type litter, stocking density, age slaughter. However, achieved 13% (P less than 0.05) greater net income per 1000 birds, 2.0% better feed-conversion ratio 0.05), 2.5% average weight bird flocks. hockburn bonus (a payable growers whose broilers have lowest prevalence contact dermatitis lesions hocks) mortality These results show that has a substantial, effect commercial profitability.