The study of seasonal changes in stroeid hormones, progesterone in farmed broodstock of Labeo rohita with Water quality parameters from Khuzestan Province

Subject Areas : New Technologies in Aquaculture Development

Received: 2021-02-07 Accepted : 2021-02-07 Published : 2015-02-20

Keywords: progesterone, Khuzestan province, Labeo rohita, Keywords: Steroid hormones,

Abstract :

Abstract[1] Progesterone, stroeid hormone, have very important role in controlling of reproduction and sexual maturity of fish. This survey aimed to investigate changes in progesterone hormon in female of Labeo rohita during years of 2011 to 2012 in different seasons climatic from Khuzestan province. In order to determine the amount of sex hormones in plasma samples, 40 fish-breeding of Labeo rohita (1200±80 g) was carried out they were stocked in three 1700 m2 each earthen ponds with the sexual ratio 1:1. In each season blood was collected from 10 Labeo rohita (from caudal pedacle) then hormone was assessing with radioimmunoassay method (RIA). Mean of weight of fishes in spring, summer, autumn and winter were 1207.5±69.58, 2464±387.01, 2718±378.42 and 2511.25±102.5 g. The mean concentration of progesterone in female fishes in spring, summer, autumn and winter were 0.027±0.04, 0.16±0.02, 0.86±0.01 and 0.56±0.05 ng ml-1 respectively (p < 0.001). The highest and lowest of progesterone were in autumn and summer of Labeo rohita (p < 0.001). * Corresponding Authors; Email: [e-mail]