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:: دوره 14، شماره 2 - ( 1394 ) ::
جلد 14 شماره 2 صفحات 328-335 برگشت به فهرست نسخه ها
Effect of male age in Caspian brown trout, Salmo trutta broodstock on reproductive performance
چکیده:   (4246 مشاهده)
In this study, three different age groups of male broodstocks (4, 5 and 6 years respectively) were used to fertilize eggs obtained from nine females. The results showed that 6 year old males had maximum body weight (1766 g), total length (56.3 cm) and sperm volume (31.83 ml). Results did not show significant difference in spermatocrit and spermatozoa concentration among age groups (p>0.05). Our study showed maximum fertilization rate (98.5 %), survival rate until eyes pigmentation (91.17 %), hatching rate (94.5 %) and survival rate until absorption of yolk sack (97.16 %) for 4 years treatment group. Such positive relationships were detected between sperm production characteristics (spermatozoa concentration, spermatocrit and sperm volume) and fertilization parameters. Based on our results, it can be concluded that 4 year old males have high efficiency leading to fertilization success.
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نوع مطالعه: پژوهشي | موضوع مقاله: Biology & physiology
دریافت: 1394/3/18 | پذیرش: 1394/3/18 | انتشار: 1394/3/18
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Rahbar M, Khara H. Effect of male age in Caspian brown trout, Salmo trutta broodstock on reproductive performance. IJFS. 2015; 14 (2) :328-335
URL: http://jifro.ir/article-1-1886-fa.html

Effect of male age in Caspian brown trout, Salmo trutta broodstock on reproductive performance. مجله علوم شیلاتی ایران. 1394; 14 (2) :328-335

URL: http://jifro.ir/article-1-1886-fa.html



دوره 14، شماره 2 - ( 1394 ) برگشت به فهرست نسخه ها
مجله علوم شیلاتی ایران Iranian Journal of Fisheries Sciences
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