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Papers by keshavanath perar
Journal of Aquaculture & Marine Biology, 2017
Oil extracted passion fruit (Passiflora edulis) seed cake was procured locally; it contained 14.4... more Oil extracted passion fruit (Passiflora edulis) seed cake was procured locally; it contained 14.47% protein and 9.89% lipid. Five experimental diets (T 0-T 5) were formulated incorporating 0,
Turkish Journal of Fisheries and Aquatic Sciences, 2016
Influences of two types of substrates, natural (macrophyte, Pistia stratiotes) and artificial (pl... more Influences of two types of substrates, natural (macrophyte, Pistia stratiotes) and artificial (plastic screen) were evaluated at 3 differrent densities (10, 20, 30%) on periphyton development, water quality and growth performance of jaraqui (Semaprochilodus insignis). Fish of average initial weight 1.46-1.69 g and length 4.15-4.26 cm stocked at 1/m in 46 m masonry tanks were grown for 120 days. The tanks were fertilized with urea, triple superphosphate and wheat bran. The types and densities of substrates tested did not drastically influence water quality. Natural substrate harboured higher periphyton biomass (1.48±0.09 mg/cm) as well as species diversity (28 genera) than the artificial substrate (0.84±0.12 mg/cm, 20 genera). Fish in 10% and 20% artificial substrate and 20% natural substrate treatments showed better mean values of body weight (24.64, 23.86, 29.26 g respectively) on termination of the experiment. Fish survival was the lowest in 30% natural substrate (84.1%) and highe...
‘’Barrackpore Declaration for PPPs for aquaculture and culture- based fisheries’’: “The delegates... more ‘’Barrackpore Declaration for PPPs for aquaculture and culture- based fisheries’’: “The delegates, comprising researchers, private companies, nongovernmental organizations, government agencies and other participants, after having deliberated over a period of three days agreed that the integration, and promotion of public private partnership mechanisms in government policy and programmes for aquaculture and culture- based fisheries is essential for the growth of the sector and call upon state / central governments to take concrete further steps to establish, accelerate and strengthen publicprivate partnerships for the benefit of all the stake holders. Governments need to create an enabling environment including necessary incentives to encourage the FDI, entry of financial companies, insurance firms, and partnerships between private companies, the government and communities in the construction of infrastructure essential for ensuring ready access to physical resources, particularly ma...
Over the past 50 years, world aquaculture has grown at an average annual growth rate of 8.8% and ... more Over the past 50 years, world aquaculture has grown at an average annual growth rate of 8.8% and now accounts for nearly 50% of the food fish production. Monoculure or polyculture of compatible species in ponds, providing diets with fish meal as the major protein source is the common method of farming fish. Reliance on intensive feed-driven culture system is not sustainable since over-f ishing in the ocean to obtain enough fish meal and f ish oil for diets would endanger the global marine environment. Further, this practice also enhances the organic load of the pond effluent as well as the cost of production. Omnivorous/herbivorous species that feed at the lower trophic levels are more eco-friendly, since they can be grown by the judicious use of manures and diets with lower protein and higher carbohydrate content. Manuring is a common practice in Asian countries, including India, aimed at increasing the production of natural food for farmed fishes. Facilitating the growth of biof i...
… Research in Asia: …, 1989
Go to AGRIS search. On the applicability of a mixed feeding schedule for common carp, Cyprinus ca... more Go to AGRIS search. On the applicability of a mixed feeding schedule for common carp, Cyprinus carpio Var. Communis. ...
Natural and anthropogenic hazards on fish and …, 2007
Acta Ichthyologica et Piscatoria, 2002
Acta Ichthyologica et Piscatoria, 2002
Manjappa K., Keshavanath P., . Growth performance of common carp, Cyprinus carpio fed varying lip... more Manjappa K., Keshavanath P., . Growth performance of common carp, Cyprinus carpio fed varying lipid levels through low protein diet, with a note on carcass composition and digestive enzyme activity. Acta Ichthyol. Piscat. 32 (2): 145-155.
North American Journal of Aquaculture
Journal of Aquaculture & Marine Biology, 2017
Oil extracted passion fruit (Passiflora edulis) seed cake was procured locally; it contained 14.4... more Oil extracted passion fruit (Passiflora edulis) seed cake was procured locally; it contained 14.47% protein and 9.89% lipid. Five experimental diets (T 0-T 5) were formulated incorporating 0,
Turkish Journal of Fisheries and Aquatic Sciences, 2016
Influences of two types of substrates, natural (macrophyte, Pistia stratiotes) and artificial (pl... more Influences of two types of substrates, natural (macrophyte, Pistia stratiotes) and artificial (plastic screen) were evaluated at 3 differrent densities (10, 20, 30%) on periphyton development, water quality and growth performance of jaraqui (Semaprochilodus insignis). Fish of average initial weight 1.46-1.69 g and length 4.15-4.26 cm stocked at 1/m in 46 m masonry tanks were grown for 120 days. The tanks were fertilized with urea, triple superphosphate and wheat bran. The types and densities of substrates tested did not drastically influence water quality. Natural substrate harboured higher periphyton biomass (1.48±0.09 mg/cm) as well as species diversity (28 genera) than the artificial substrate (0.84±0.12 mg/cm, 20 genera). Fish in 10% and 20% artificial substrate and 20% natural substrate treatments showed better mean values of body weight (24.64, 23.86, 29.26 g respectively) on termination of the experiment. Fish survival was the lowest in 30% natural substrate (84.1%) and highe...
‘’Barrackpore Declaration for PPPs for aquaculture and culture- based fisheries’’: “The delegates... more ‘’Barrackpore Declaration for PPPs for aquaculture and culture- based fisheries’’: “The delegates, comprising researchers, private companies, nongovernmental organizations, government agencies and other participants, after having deliberated over a period of three days agreed that the integration, and promotion of public private partnership mechanisms in government policy and programmes for aquaculture and culture- based fisheries is essential for the growth of the sector and call upon state / central governments to take concrete further steps to establish, accelerate and strengthen publicprivate partnerships for the benefit of all the stake holders. Governments need to create an enabling environment including necessary incentives to encourage the FDI, entry of financial companies, insurance firms, and partnerships between private companies, the government and communities in the construction of infrastructure essential for ensuring ready access to physical resources, particularly ma...
Over the past 50 years, world aquaculture has grown at an average annual growth rate of 8.8% and ... more Over the past 50 years, world aquaculture has grown at an average annual growth rate of 8.8% and now accounts for nearly 50% of the food fish production. Monoculure or polyculture of compatible species in ponds, providing diets with fish meal as the major protein source is the common method of farming fish. Reliance on intensive feed-driven culture system is not sustainable since over-f ishing in the ocean to obtain enough fish meal and f ish oil for diets would endanger the global marine environment. Further, this practice also enhances the organic load of the pond effluent as well as the cost of production. Omnivorous/herbivorous species that feed at the lower trophic levels are more eco-friendly, since they can be grown by the judicious use of manures and diets with lower protein and higher carbohydrate content. Manuring is a common practice in Asian countries, including India, aimed at increasing the production of natural food for farmed fishes. Facilitating the growth of biof i...
… Research in Asia: …, 1989
Go to AGRIS search. On the applicability of a mixed feeding schedule for common carp, Cyprinus ca... more Go to AGRIS search. On the applicability of a mixed feeding schedule for common carp, Cyprinus carpio Var. Communis. ...
Natural and anthropogenic hazards on fish and …, 2007
Acta Ichthyologica et Piscatoria, 2002
Acta Ichthyologica et Piscatoria, 2002
Manjappa K., Keshavanath P., . Growth performance of common carp, Cyprinus carpio fed varying lip... more Manjappa K., Keshavanath P., . Growth performance of common carp, Cyprinus carpio fed varying lipid levels through low protein diet, with a note on carcass composition and digestive enzyme activity. Acta Ichthyol. Piscat. 32 (2): 145-155.
North American Journal of Aquaculture