Water quality management during transportation of fry of Indian major carps, Catla catla (Hamilton), Labeo rohita (Hamilton) and Cirrhinus mrigala (Hamilton)

• Published in: Aquaculture Vol. 235; no. 1; pp. 297 - 302
• Main Authors: Singh, Ravendra Kumar, Vartak, Vivek R., Balange, Amjad K., Ghughuskar, Manoj M.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.06.2004; Elsevier Sequoia S.A
• Subjects: 2-Phenoxyethanol; ammonia; animal byproducts; animal transport; Aquaculture; buffers; carp; Catla; Catla catla; Cirrhinus; Cirrhinus cirrhosus; Cirrhinus mrigala; dissolved oxygen; Fish; fish culture; fish fry; freshwater aquaculture; freshwater fish; Fry; Indian major carps; Labeo; Labeo rohita; mortality; Oxyflow; Oxygen; Tris buffer; Water quality; Zeolite; India; Tris buffer; 2-Phenoxyethanol; Zeolite; Oxyflow; Fry; Indian major carps
• ISSN: 0044-8486; 1873-5622
• DOI: 10.1016/j.aquaculture.2003.12.011

The effects of various agents viz. Tris buffer, zeolite, 2-phenoxyethanol and Oxyflow in controlling the development of toxic by-products and maintenance of high dissolved oxygen levels during transportation of fry of Indian major carps Catla catla, Labeo rohita and Cirrhinus mrigala were studied. Neomycin sulphate at 20 mg l −1 was added in each plastic bag containing 1500 fry ( L=30±0.76 mm, W=410±7.66 mg) in 3 l water to control bacterial growth. Each experiment was conducted for 48 h. Zeolite, at 7 g l −1, was found to considerably reduce the concentration of ammonia resulting in increased survival. Similarly, Tris buffer at 0.01 M and 2-phenoxyethanol at 0.09 ml l −1 gave 100% survival. Oxygen concentration increased considerably when Oxyflow was applied at 250 and 500 mg l −1 which resulted in 100% survival of the fry.