| Yazarlar (7) |
Rayees Ahmad Bhat
|
|
Jeetendra Kumar
|
|
Francesco Fazio
|
|
Claudia Giannetto
|
|
Giuseppe Piccione
|
|
Vincenzo Parrino
|
Prof. Dr. Osman Sabri KESBİÇ
Kastamonu Üniversitesi, Türkiye |
| Özet |
| This study aimed to investigate the reproductive biology of female rainbow trout (Oncorhynchus mykiss). Mature female (n.80) rainbow trout from different reproductive phases were collected. Through a transmission electron microscope (TEM), it was feasible to examine the oocyte at several developmental stages, namely the perinucleolus stage, cortical alveoli stage, vitellogenic stage, mature stage, and postovulatory stage. Progesterone and estradiol levels were measured at their lowest during the immature and spent phases, while reaching their highest levels during the maturing and mature stages. The total amount of saturated fatty acids (SFA), monounsaturated fatty acids (MUFA), and polyunsaturated fatty acids (PUFA) was greater in mature ovaries compared to immature and maturing ovaries. Gene transcripts related to the production of steroids, specifically star, cyp11a1, cyp17a1 and hsd3b were expressed at low levels during the immature stage and showed a significant rise during the mature stage. The ovarian gene expression patterns during oogenesis exhibited distinct dissimilarities. The fatty acid content, essential for the development of fish ovaries, and the sex steroid hormonal profile, which play a key role in regulating oogenesis, are particularly significant. These results will enhance our comprehension of the reproductive biology and sustainable management of rainbow trout in their natural environment. |
| Anahtar Kelimeler |
| Estrogen | Fatty acids | Gene expression | Progesterone | Rainbow trout |
| Makale Türü | Özgün Makale |
| Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale |
| Dergi Adı | Turkish Journal of Fisheries and Aquatic Sciences |
| Dergi ISSN | 1303-2712 Wos Dergi Scopus Dergi |
| Dergi Tarandığı Indeksler | SCI-Expanded |
| Dergi Grubu | Q3 |
| Makale Dili | Türkçe |
| Basım Tarihi | 05-2024 |
| Cilt No | 24 |
| Sayı | 7 |
| Doi Numarası | 10.4194/TRJFAS25504 |
| Makale Linki | http://dx.doi.org/10.4194/trjfas25504 |
| Atıf Sayıları |
