The Effect of Sulfaquinoxaline on Eimeria acervulina Infection in Pullets in Egg Production

SEVERAL investigators have shown sulfaquinoxaline to be an effective coccidiostatic agent against Eimeria tenella and Eimeria necatrix infections. This report deals with the effect of sulfaquinoxaline against Eimeria acervulina infection in young pullets in egg production. PROCEDURE Sixty-five White Leghorn pullets were reared under controlled conditions to keep them free of coccidial infection. At about 10 weeks of age each bird was placed in an individual laying cage. When they were laying about 50 percent egg production they were divided into 5 lots of 13 birds each. An effort was made to make an equal distribution of the birds on the basis of body weight and the time of laying the first egg. Beginning at this period of lot designation the birds were weighed individually twice each week at 3 or 4 day intervals. The pullets were fed an all-mash ration which was supplemented with oyster shell, when egg production . . .