Occurrence: Worldwide.   Species affected: All.   Age affected: Young.

Causes: Deficiency of Vitamin E and/or selenium in the diet.

Effects: Weakness and signs of unthriftiness.

This disease is a vitamin E and/or selenium deficiency. All species of young birds are susceptible to this disease.

Deficiency in the diet.

Birds are weak and unthrifty signs occur.

Light coloured streaks of easily distinguished affected bundles of muscle fibres in the breast (myopathy), of the gizzard and heart muscles can occur.

Gross and microscopic muscle lesions are characteristic. Microscopic lesions include hyaline degeneration, followed by disruption of muscle fibres.

Restore proper levels in the diet.

Back to "N" Health & Diseases page

Back to main Health & Diseases page