| an outbreak of thyroid hyperplasia (goiter) with high mortality in budgerigars (melopsittacus undulatus). | an outbreak of goiter with high morbidity and mortality in a flock of budgerigars (melopsittacus undulatus) in california is described. forty-five out of 400 adult birds exhibited signs of illness, weight loss, and enlargement in the crop area; 15 of the 45 birds died over a 2-3-month period. diet consisted of a commercial mixture with the addition of broccoli, whole oats, and carrots, but no minerals or supplements. six budgerigars were subjected to necropsy; all 6 birds had severely enlarged t ... | 2015 | 25428186 |