. Control series bulletin. Feeds -- Analysis Periodicals; Fertilizers -- Analysis Periodicals. CHICKS W B/fOOOC/f HOUSE. Figure 1. Infection in a Flock May Follow This Cycle. The cycle of infection can best be broken by eliminating the infected birds from the young and adult stock by means of the agglutination test. In iuunature and adult birds, tlie disease may occasionally manifest itself in an acute form causing slight to heavy losses. Usually in diseased adults, the infection is localized in one or more organs such as the ovary, heart sac and heart wall, oviduct, and cysts, attached or fre
. Control series bulletin. Feeds -- Analysis Periodicals; Fertilizers -- Analysis Periodicals. CHICKS W B/fOOOC/f HOUSE. Figure 1. Infection in a Flock May Follow This Cycle. The cycle of infection can best be broken by eliminating the infected birds from the young and adult stock by means of the agglutination test. In iuunature and adult birds, tlie disease may occasionally manifest itself in an acute form causing slight to heavy losses. Usually in diseased adults, the infection is localized in one or more organs such as the ovary, heart sac and heart wall, oviduct, and cysts, attached or free in the body cavity. The most common seat of infection is the ovary, where diseased ova appear dis- colored, cystic, odd-shaped and pedunculated. The organism is generally found in the diseased ova. These ova may be found free in tiie body cavity and also in the lumen of the oviduct. One may assume tiiat such ova may be eliminated tlirough the oviduct and thereby become a means of spreading the disease if eaten by other birds. Normal appearing ova may also be infected, and in this manner the organism may become part of the egg. When infective. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Massachusetts Agricultural Experiment Station. Amherst, University of Massachusetts
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