National plan for studying on how can develop aquaculture in Sistan and Baluchistan by carried out research projects such as: Twice a year cultured of shrimp, propagation and breeding of Hamoon fish (Shizothorax zarudnyi) and propagation and breeding of three Indian carp species
Hamoun fish, Schizothorax zarudnyi, is an indigenous species of the eastern waters of Iran. 331 Spawners weighing 800-2450 g were collected from the Chahnimeh reservoirs in early autumn, 2006. from 5/3/2007 (the project is supported and communicated on 2010) , Ovulation was stimulated with three stimulators; pituitary extract (3-6 mg kg-1 body weight), GnRH-A (20-30 mg kg-1 body weight) and anti dopamine (10-15 mg kg-1 body weight) that was given in 2-3 doses to breeders. Of 169 injected breeders , some were injected On mid March of 2007 (12-13 ºC water temperature) responded to the injection 25% ,while the rest were injected On April of 2008 (14-16 ºC water temperature) responded to the injection 65%. In the present project of 167 breeders 82 were female and 87 male. Totally 30 female breeders released their eggs in different stages. 20 female breeders released their eggs completely, 3 breeders released half of their eggs and 7 released 1/3 of their eggs. Larvae were fed with a mixture of powdered milk and egg yolk in this stage followed by decapsulated Artemia cysts and nauplii of Artemia and then on formulated starter diets used for carps. Because the ponds were not ready, larvae were maintained in troughs for about ten days before they were transferred to two 1200 m^2 earthen ponds where they reached a body weight of about 1 g. Larvae were fed with the starter feed SFCO in the earthen ponds. About 350 thousand larvae were stocked in two earthen ponds. Based on the results of present study and other studies we may conclude that artificial breeding in Schizothorax can be successfully achieved at 14-16 ºC in flow through systems using hormone therapy (combination of GnRha and anti dopamine) and larvae could be easily cultured in earthen ponds. However this species exhibits lower growth rates as compared to carps its high expenses could have an important role in economical feasible. Farming of Indian white Shrimp P.indicus in 4 private farm was done in 2008. Surveillance and monitoring of these farms, the possible obstacles to the harmful effects of management strengths and weaknesses and develop in the future was done in corporation of Offshore fisheries research center of Chabahar and fisheries of Sistan and Balouchestan. First crop was successful, but the shrimp of Nursery pond and second crop due to the occurrence of white spot disease (WSSV) disease and casualties were died and did not actually do the work. The average minimum and maximum feed conversion in Culture period 1.46 and 1.96 respectively, in C2 _31 and C2 _ 14 farms were observed. Maximum production was 41,376 kg in farm C2 _31. The rainfall on 14 August severe flooding and water supplying cussed suddenly fall down of Inland channel water salinity at day 16-20th August to 4-5PPT and the PH go up to 8.8-9. After 2 days the white spot disease in South of site was confirmed and was transferred immediately to the north of site. (The pilot’s farm). The results showed that shrimp farming can be done in two periods in year with a predetermined .In this study the only factor that could have adverse effects on the project was Feed supply problems during the growing period and the consequences that it caused low average body weight and final harvested Shrimp resulted to delay in daily growth. 30000 juvenile Indian majour carps (LabeoRohita, Cirhinusmerigala, Catlacatla) imported (2007 and 2008) and transferred to the earthen ponds in Astaneh Fisheries Research Station (Gilan ) and SheibanResaerch center (Khozestan) , In order to assess the viability of rearing fry up to 1 gram fingerlings under the climatic condition of north and south part of Iran . Growth parameters from the larval stage to 1 g were studied also .The fry with 300 mg weight, were released in to 3ponds. Results have indicated adaptations and considerable growth in this species, with an increase from the initial weight of 300 mg to an average of 13.5±1.6 mg in 50 days period until the end of November for fingerlings. Catla was gain 1 g. during 15 day while Roho and Merigal were gain 1 g. during 14 and 10 days respectively. Results revealed that the Indian major carps compatibility with the condition in Gilan province was successful and the combination of species and optimization of their compatibility specially in other provinces like Sistan and Baluchestan were remind for further studies.
| Main Authors: | , , |
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| Format: | monograph biblioteca |
| Language: | Persian |
| Published: |
Iranian Fisheries Science Research Institute
2012
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| Subjects: | Aquaculture, Iran, Sistan and Baluchestan Province, Gwater, Chahnimeh reservoirs, Hamoun fish, Schizothoraxzarudnyi, Breeding, Indian carp, Growth, LabeoRohita, Cirhinusmerigala, Catlacatla Intensive culture, Indian White Shrimp, Fenerropenaeusindicus, UNDP, Crap culture, GnRHa, Dopamine, P. indicus, |
| Online Access: | http://hdl.handle.net/1834/39716 |
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