| تعداد نشریات | 282 |
| تعداد نشریات سازمان | 80 |
| تعداد شمارهها | 3,168 |
| تعداد مقالات | 35,197 |
| تعداد مشاهده مقاله | 50,943,901 |
| تعداد دریافت فایل اصل مقاله | 90,949,128 |
مطالعه بافت شناسی غدد جنسی در تاسماهیان جوان پرورشی | ||
| مجله علمی شیلات ایران | ||
| مقاله 1، دوره 7، شماره 1، فروردین و اردیبهشت 1377، صفحه 1-15 اصل مقاله (630.46 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/isfj.1998.116008 | ||
| نویسندگان | ||
| محمود بهمنی؛ رضوان الله کاظمی | ||
| چکیده | ||
| غدد جنسی ، تاسماهیان | ||
| کلیدواژهها | ||
| غدد جنسی؛ تاسماهیان | ||
| عنوان مقاله [English] | ||
| Histological Study on the Gonads of Reared Juvenile Sturgeon | ||
| نویسندگان [English] | ||
| M. Bahmani؛ R. Kazemi | ||
| چکیده [English] | ||
| Histological studies are of the most adequate way to determine the physiological condition of fish organs. The present research was carried out in order to conduct a qualitative evaluation of the growth and development of the reproductive system of three sturgeon species (Acipenser persicus, Acipenser gueldenstaedti, and Huso huso). In this evaluation two histological approaches, gonadectomy and biopsy, were employed. The studied sturgeons consisted of 58 one, two and six years old reared juveniles. Some 60% of the one-year-old Huso huso were of unknown sex, 20% were previtellogic females and 20% of the males were in the early stage of spermatogenesis. On the other hand 50% of the one-year-old Acipenser persicus were also of unknown sex, 30% premature females and 20% premature males. Some 30% of two-year-old Huso huso were of unknown sex, 40% premature females and 10% of the females were in stage I of sexual maturity and 10% were premature males. Among the six-year-old specimens, 60% o..... | ||
| مراجع | ||
|
| ||
|
آمار تعداد مشاهده مقاله: 299 تعداد دریافت فایل اصل مقاله: 262 |
||