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Retracted : Effectiveness of carp pituitary extract and luteinizing hormone releasing hormone analogue administration (by either injection or cholesterol pellet implantation) on spawning performance in female sturgeon, Huso huso
Author(s) -
Aramli Mohammad Sadegh,
Nazari Rajab Mohammad,
Farsi Parham,
Mehdinejad Nooshin,
Aramli Salim,
Sotoudeh Ebrahim
Publication year - 2017
Publication title -
aquaculture research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.646
H-Index - 89
eISSN - 1365-2109
pISSN - 1355-557X
DOI - 10.1111/are.13029
Subject(s) - huso , sturgeon , biology , luteinizing hormone , carp , human fertilization , hatching , hormone , common carp , endocrinology , medicine , zoology , fishery , anatomy , fish <actinopterygii> , cyprinus
The effectiveness of common carp pituitary extract ( CPE ), luteinizing hormone releasing hormone analogue ( LHRH ‐A 2 ) injections and LHRH ‐A 2 implants for spawning induction in female sturgeon, Huso huso was examined. In the first trial, fish were injected with 7% physiological saline (control), 50 mg kg −1 CPE or LHRH ‐A 2 at 3.5, 7, 8 or 10 μg kg −1 . In the second trial, fish were treated with LHRH ‐A 2 cholesterol pellet implants containing 0, 3.5, 7, 8 and 10 μg kg −1 LHRH ‐A 2 . Ovulated eggs were removed using a minimally invasive surgical technique and were artificially fertilized. Injection of CPE and LHRH ‐A 2 at doses of 3.5, 7, 8 and 10 μg kg −1 resulted in the number of ovulated fish more than LHRH ‐A 2 implants (similar doses) or controls, although there was no significant difference at doses of 8 and 10 μg kg −1 ( P ≥ 0.05). The latency period of fish receiving CPE and LHRH ‐A 2 injections was approximately 20 h, which was significantly lower than in fish receiving LHRH ‐A 2 implants ( P ≤ 0.05). Furthermore, there were no significant differences in rates of fertilization or hatching among the progeny produced in any of the treatment groups ( P ≥ 0.05). In conclusion, the data from this study could be useful for artificial propagation of not‐fully‐matured females of H. huso at sturgeon hatcheries.