Disseminated mycosis in layer cockerels and pullets.

Eight-wk-old layer cockerels and pullets were presented to the diagnostic lab with a history of increased mortality, ruffled feathers, lameness, and recent vaccination. At necropsy, the birds had large multifocal granulomas in multiple tissues. Only light bacterial growth was seen on culture.

Comparison of two formaldehyde administration methods of in ovo-injected eggs.

Formaldehyde administration in the hatchery can be very useful in decreasing microbial numbers. However, its use is controversial because of the adverse effects that can occur to chicks and people. This study was designed to look at alternative methods of application of formaldehyde in the hatchery.