Comparative Study of Hormonal Stimulation of HCG, PG-extract and Ovaprim on Thermal Accumulation Period and Egg Production in Grass Carp Ctenopharyngodon idella
Publish place: Fourth International Fisheries and Aquatic Research Congress
Publish Year: 1399
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ICFAR04_253
تاریخ نمایه سازی: 6 دی 1399
Abstract:
Three types of hormonal stimulation were tried using HCG, PG extract and Ovaprim to induce egg production and accelerate thermal accumulation period (TAP). Results showed that there is a direct relationship between the type of hormones and TAP. Fish receiving PG-extract had the shortest TAP which was significantly different than those receiving HCG and Ovaprim treatments. Values ranged between 258.97, 344.67 and 322.78 C-hour in fish injected with PG extract, HCG and Ovaprim respectively. Results also showed noticeable variation in egg production in fish receiving various hormones with clear superiority for fish injected with PG-extract compared with those receiving HCG and Ovaprim. The lowest weight of extracted eggs was in fish injected with HCG (7.30 g/kg) and the highest in fish receiving the PG hormonal extract (139.68 g/kg).
Authors
K.A Khalaf
Department of Fisheries & Marine Resources, College of Agriculture, University of Basrah, Iraq
S.S Al-Noor
Department of Fisheries & Marine Resources, College of Agriculture, University of Basrah, Iraq
N.A Salman
Department of Fisheries & Marine Resources, College of Agriculture, University of Basrah, Iraq