title: [Study of the submicroscopic structure of striated muscles in Japanese quail under conditions of stress].
abstract: An electronmicroscopic study of striated muscles was made in Japanese quail stressed by hypokinesis. During 15-day hypokinesis influencing m. gastrocnemius, small pale vacuoles were found out on some mitochondria. The process of alterations went on, and in the 15-day hypokinetic animals, alterations in myofibrils were observed besides the alterations in mitochondria. They manifested themselves by indistinct lines of actin and myosin fibers and by an uneven course of Z-lines. The alterations of m. gastrocnemius mitochondria in Japanese quail during hypokinesis were probably caused by energy insufficiency and subsequent hydration of the organella. Nearly all components of the muscular tissue were impaired by the 30-day hypokinesis.
mesh_terms: D000818:Animals; D003370:Coturnix / Q000033:anatomy & histology*; D007103:Immobilization; D009132:Muscles / Q000648:ultrastructure*; D011784:Quail / Q000033:anatomy & histology*; D013312:Stress, Physiological / Q000473:pathology / Q000662:veterinary*
vernacular_title: Stúdium submikroskopickej struktúry priecne pruhovanej svaloviny Japonskej prepelice v podmienkach stresu.