[صفحه اصلی ]   [Archive]  
:: صفحه اصلي :: درباره نشريه :: آخرين شماره :: تمام شماره‌ها :: جستجو :: ثبت نام :: ارسال مقاله :: تماس با ما ::
:: دوره 19، شماره 2 - ( 1398 ) ::
جلد 19 شماره 2 صفحات 715-725 برگشت به فهرست نسخه ها
Effects of cortisol treatment and ovaprim treatment on sex steroid hormones, plasma and oocyte cortisol content and ovulation induction in Caspian kutum, Rutilus frisii (Kamansky, 1901) broodstocks
چکیده:   (944 مشاهده)
Caspian kutum fish (Rutilus frisii) wild broodstocks were caught by gillnet during their upstream migration and subjected to short-time confinement stress and their physiological responses have been examined. Thirty fish (average weight of 1217.6 g) were divided into three experimental groups CO (control), OV (ovaprim) and CO+OV (cortisol+ovaprim) and placed into rearing tanks (10 fish tank-1; 2 m3 each) and kept for 10 days. Fish in CO+OV group received a single cortisol injection (20 µg kg-1 B.W.) before being transferred in tank. After 10 days of confinement, all fish in OV and CO+OV groups  were injected by ovaprim (20 µg kg-1 B.W.) to induce maturation and ovulation. Plasma cortisol in CO+OV fish have showed a gradual decrease during confinement and reached to the lowest level after maturation (ovulation) while the highest values for glucose has been found in OV group (p<0.05). Testosterone and 17β-estradiol levels declined significantly in all experimental groups following cortisol treatment and maturation, while no significant difference had been found in the content of plasma progesterone among brood-stocks (p<0.05).The concentration of oocyte cortisol in CO+OV was 2-fold higher than that of CO and OV after maturation. These results indicated that cortisol treatment with subsequent ovaprim injection decreased plasma sex steroids and increased oocyte cortisol content in confined broodstocks but had no effect on oocyte histological characteristics.
متن کامل [PDF 461 kb]   (264 دریافت)    
نوع مطالعه: پژوهشي | موضوع مقاله: Biology & physiology
دریافت: 1395/8/16 | پذیرش: 1396/6/12 | انتشار: 1399/1/1
ارسال نظر درباره این مقاله
نام کاربری یا پست الکترونیک شما:

CAPTCHA


XML   English Abstract   Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Sarpanah A, Monsef Kasmaie H, Yasemi M, Abedi M. Effects of cortisol treatment and ovaprim treatment on sex steroid hormones, plasma and oocyte cortisol content and ovulation induction in Caspian kutum, Rutilus frisii (Kamansky, 1901) broodstocks. IJFS. 2020; 19 (2) :715-725
URL: http://jifro.ir/article-1-2450-fa.html

Effects of cortisol treatment and ovaprim treatment on sex steroid hormones, plasma and oocyte cortisol content and ovulation induction in Caspian kutum, Rutilus frisii (Kamansky, 1901) broodstocks. مجله علوم شیلاتی ایران. 1398; 19 (2) :715-725

URL: http://jifro.ir/article-1-2450-fa.html



دوره 19، شماره 2 - ( 1398 ) برگشت به فهرست نسخه ها
Iranian Journal of Fisheries Sciences Iranian Journal of Fisheries Sciences
Persian site map - English site map - Created in 0.08 seconds with 30 queries by YEKTAWEB 4280