the present work examines the influence of either a hyperthyroid status ( induced by feeding triiodothyronine : t3 or thyroxine : t4 ) or a hypothyroid status ( induced by feeding methimazole : mmi ) on growth , feed consumption and body composition as well as on changes in thyroid hormone levels and metabolism and in hormone levels of the somatotroph axis of broiler chickens .
C0040165
thyroxine
C0020676
hypothyroid