Effect of Co-60 external irradiation on the active testes of house sparrow, Passer domesticus (linnaeus) I. Histopathological studies.
نویسندگان
چکیده
Cobalt-60 Irradiation/Testis/House Sparrow (Passer domesticus, Linn.) Adult male house sparrows were exposed to Co-60 external irradiation at doses of 475, 712 and 950R. The dose rate was 100 R/hr at a distance of one foot. The birds were autopsied at intervals of 1, 3, 5, 7 and 15 days after irradiation. Testes were studied for histopathological damage produced. There was a significant loss of the testicular weight 3 days after irradiation. The seminiferous tubules showed pyknosis, karyolysis and depletion of spermatogonial cells. Maximum damage was observed in the testis exposed to 950R. However, there was no change in the Sertoli and Leydig cells.
منابع مشابه
Effect of Co-60 external irradiation on the testis of house sparrow (Passer domesticus, Linnaeus) after testosterone propionate administration.
External irradiation/House parrow/Testosterone propionate Adult, male house sparrows (Passer domesticus, Linn.) during recrudescence phase were divided into 4 groups. Gpoup i served as control ; group ii received total 2.5 mg of testosterone propionate (T. P.) ; group iii. birds were exposad to 450 R from a Co-60 source; group iv. birds were exposed to 450 R after administering 2.5 mg of T. P. ...
متن کاملNew species of Genus Diplotriaena Railliet and Henry, 1909 (Filariidae: Nematoda) from Passer domesticus Linnaeus and P. pyrhonotus Blyth (Passeridae: Passeriformes) in Jamshoro, Sindh, Pakistan.
OBJECTIVE The present study was conducted to examine the filarial nematodes of house sparrow [Passer domesticus (Linnaeus, 1758)] and Sindh sparrow (P. pyrrhonotus Blyth, 1844) from Jamshoro, Sindh, Pakistan. METHODS Twenty-three house sparrows and 12 Sindh sparrows were examined for nematode parasites. A total of seven birds were found infected by 16 filarial worms belonging to the genus Dip...
متن کاملTwo new quill mite species of the family Syringophilidae (Acari: Prostigmata) parasitising the house sparrow Passer domesticus (L.) (Aves: Passeriformes).
Two new quill mite species of the family Syringophilidae, Picobia passeri sp. nov. and Krantziaulonastus dubinini sp. nov., are described from quills of the body feathers of the house sparrow Passer domesticus (L.) (Passeriformes: Passeridae) from the European part of Russia.
متن کاملThe effect of duration and time of food availability on the photoperiodic response in the male house sparrow, Passer domesticus.
We investigated the effects of food availability on the seasonal testicular growth in the photoperiodic house sparrow (Passer domesticus). Two experiments were performed, each lasting 4 weeks. In experiment 1, sparrows were exposed to natural (NDL; group 1), short (8L:16D; group 2) and long (16L:8D; groups 3-5) day lengths with access to food ad libitum (groups 1-3) or for 10 h (zeitgeber time ...
متن کاملPharmacological characterization of intracellular glucocorticoid receptors in nine tissues from house sparrow (Passer domesticus).
Glucocorticoid hormones play a key role in the stress response, but plasma concentrations vary based on physiological, environmental, or social parameters. However, hormone titers alone do not determine organismal response. To enhance our understanding of glucocorticoid actions we can examine 'downstream' factors in the organismal stress response, measuring glucocorticoid receptors across targe...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Journal of radiation research
دوره 22 2 شماره
صفحات -
تاریخ انتشار 1981