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Hatchery Operation of Thai Koi (anabas Testudineus) in a Freshwater Fish Farm in Bangladesh

Afroza Akter
Dept. of Fisheries and Marine Science, Noakhali Science and Technology University, Noakhali-3814, Bangladesh

Md. Shamsuddin
Upazila Fisheries Officer, Dept. of Fisheries, The Peoples Republic of Bangladesh

Md. Jahangir Sarker
Dept. of Fisheries and Marine Science, Noakhali Science and Technology University, Noakhali-3814, Bangladesh

Abstract/ Executive Summary:

Hatchery Operation of Thai koi (Anabas testudineus) was investigated to understand the quality seed production technique and cost-profit of the hatchery. The study was conducted in April, 2012 in Talukdar Fish Farm, Mymensingh, Bangladesh. Hatchery operation mainly divided into – breeding unit and culture unit. Water quality parameters in brood stock pond and breeding tank was optimum. Seed production through induced breeding is the main feature of the hatchery. Single dose of Pituitary Gland (PG) extract was used. PG was injected at the rate of 6-8 mg/kg body weight of the female broods and 2-3 mg/kg body weight was injected to the male broods. Sex ratio was maintained as 1:1. Inbreeding problem was strictly avoided. Females spawned approximately 7-8 hours after injection and fertilized eggs hatched within 24-36 hours. Total cost of the hatchery was 1200000 BDT and net profit was 660000 BDT. The source of profit runs as hatchery 70% and culture 30%. The study may be useful for the proper management of Thai koi hatchery in Bangladesh.

Keywords: Cost-profit, Hatchery operation, Induced breeding, Thai koi, Water quality

Location: Talukdar Fish Farm, Mymensingh.

Start Date: 00-00-2012

End Date: 00-00-2012

Program Area: Variety and Species

Commodity: Koi/Climbing

Objectives:

1. To know the seed production technique of Thai koi through induced breeding and cost-profit analysis of the farm.

Methodology:

Research area: The research work was conducted in a fish farm named Talukdar Fish Farm situated at Shambhuganj, Mymensingh, Bangladesh. The culture technique of this farm is scientific. Mostly they are prominent for breeding and culturing Thai koi. Brood fish collection: Brood fish were selected from two different ponds for avoiding inbreeding. One is from Narsingdi and another from farm’s pond. For this research, the male fish were used ranging from 50.0 to 60.0 gm in weight. On the other hand, female fish were larger in size and weight ranging from 100.0 to 120.0 gm in weight. Broods were collected from the brood rearing ponds with a cast net at 5:00 pm on the day of breeding trails.Conditioning: The ready females and males are transferred to the different rectangular tank for conditioning, No feed was provided during the period of conditioning. Water quality monitoring: Various water quality parameters such as temperature (⁰C), dissolved oxygen (ppm), pH were recorded by using Celsius thermometer, HACH pH taste kit, HANNA DO meter respectively. Hormone (PG extract) preparation: Kuddus (brand name) PG extract was weighed by balance and then ground by mortar and pestle manually with very small amount of water. Breeding of Thai koi: The PG extract was injected into the muscular basal part of the pectoral fin. Needle was inserted at an angle of 45° with the body. After injection, both the males and females were shifted to breeding tank filled with 30 cm of water (10ft / 8ft) at 1?1 ratio. Artificial aeration was provided continuously. The adults were removed from spawning tanks after fertilizing eggs and water depth increased to 50 cm. Data analysis: Data was collected carefully recorded and analyzed by using Microsoft Office 2007 version.

Source of Information: Trends in Fisheries Research Volume 3 Issue 2, 6-10 (2014) ISSN: 2319–474X (Print); 2319–4758 (Online)

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

For this study Single dose of Pituitary Gland (PG) extract was used. PG was injected at the rate of 6-8 mg/kg body weight of the female broods and 2-3 mg/kg body weight was injected to the male broods. Sex ratio was maintained as 1:1. Inbreeding problem was strictly avoided. Females spawned approximately 7-8 hours after injection and fertilized eggs hatched within 24-36 hours. Total cost of the hatchery was 1200000 BDT and net profit was 660000 BDT. The source of profit runs as hatchery 70% and culture 30%. The study may be useful for the proper management of Thai koi hatchery in Bangladesh.

Knowledge Management: Journal