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1. Identification and dimorphic expression of sex-related genes during gonadal differentiation in sterlet Acipenser ruthenus, a primitive fish species

Author:
Wang, Wei; Zhu, Hua; Dong, Ying; Dong, Tian; Tian, Zhaohui; Hu, Hongxia
Source:
Aquaculture 2019 v.500 pp. 178-187
ISSN:
0044-8486
Subject:
Acipenser ruthenus; animal ovaries; aquaculture; blood serum; breeding; estradiol; females; fish roe; genes; genetic markers; histology; males; mammals; messenger RNA; models; ovarian development; sex determination analysis; sexual maturity; steroid receptors; steroids; sturgeon; testes
Abstract:
... Sturgeons (Acipenseriformes) are ancient and endangered but valuable commercial aquaculture species. Due to an increasing interest in sturgeon aquaculture and breeding, especially for the production of caviar, a precise sex molecular marker is desired for the early sex identification of sturgeon. Because of the smallest size as well as the shortest sexual maturation period, the sterlet (Acipenser ...
DOI:
10.1016/j.aquaculture.2018.10.001

2. Influence of thyroxine on spawning performance and larval development of Sterlet sturgeon Acipenser ruthenus

Author:
Abdollahpour, Hamed; Falahatkar, Bahram; Efatpanah, Iraj; Meknatkhah, Bahman; Van Der Kraak, Glen
Source:
Aquaculture 2018 v.497 pp. 134-139
ISSN:
0044-8486
Subject:
Acipenser ruthenus; aquaculture; body weight; breeding stock; coconut oil; eggs; fecundity; females; gonadotropin-releasing hormone; hatching; intramuscular injection; larvae; larval development; luteinization; oocytes; ovulation; postlarvae; progeny; reproductive success; spawning; specific growth rate; sturgeon; thyroxine
Abstract:
... This study set out to examine the effects of thyroxine (T4) on reproductive success of female Sterlet sturgeon broodstock and subsequent growth and development of the larval offspring. Fish received four intraperitoneal injections of coconut oil (controls), 1 mg T4/kg body weight (BW) in coconut oil (T₁) or 10 mg T4/kg BW in coconut oil (T₁₀) over a 170-day treatment period. Ovulation was induced ...
DOI:
10.1016/j.aquaculture.2018.07.033