Suspended arrays improve rainbow trout growth during Hatchery Rearing in circular tanks
Journal Title: International Journal of Aquaculture and Fishery Sciences - Year 2018, Vol 4, Issue 3
Abstract
Environmental enrichment can be an effective tool to improve rearing efficiencies during hatchery production. This study evaluated the effectiveness of two different vertically-suspended arrays in circular tanks on the growth of juvenile rainbow trout Oncorhynchus mykiss. Treatments consisted of an array of suspended aluminum rods, an array of suspended aluminum angles, or no suspended structures (control) in this 141 day study. Weight gain and feed conversion ratio were significantly improved in fish reared in tanks containing either of the suspended structures compared to unenriched control tanks. The use of either vertical rods or angles is recommended during rainbow trout rearing in circular tanks, although using angles may be more desirable because they require less material to construct.
Authors and Affiliations
E Krebs, N Huysman, JM Voorhees, ME Barnes
Keywords
Related Articles
- EP ID EP535063
- DOI 10.17352/2455-8400.000040
- Views 121
- Downloads 0
Effect of Melia Azedarach Extract on Some Selected Physiological Parameters of (Catla catla)
The present study has been carried out the effect of leaf extract of Melia azedarach at different concentration, such as 1.0g, 1.5g and 2.0g formulated diet against 0.1 ml of CFU/ ml 105 cells Aeromonas hydrophila on cat...
Physical, Chemical, Biological properties and fish species type of Geray reservoir, -W/Gojjam Zone, Ethiopia
The aim of the present study was to determine the physical, chemical and biological characteristics and to characterize the fishery of Geray reservoir. Three sites from the inlet site, the open water and the outlet has b...
Longterm Monitoring of Nitrification and Nitrifying Communities during Biofilter Activation of Two Marine Recirculation Aquaculture Systems (RAS)
Biofilters are crucial and costly components in marine recirculating aquaculture systems. However, not much is known about the settlement of nitrifying organisms and developing nitrification rates during the start-up pha...
Otolith Growth Pattern of Puntius Schwanenfeldii from the Koto Panjang Reservoir, Regency of Kampar, Riau, Indonesia
Koto Panjang Reservoir is the largest reservoir in Riau Province, there are many efforts of floating net cage (KJA) by using feed (pellet) continuously. As a result of many feeds that settle in the bottom of the waters b...
Problems and Countermeasures on the Fishery Development in the South China Sea*
The South China Sea is one of the most abundant fishery areas in the world, which is a typical multi fish species area. The South China Sea Fisheries can be divided into four parts, the northern continental shelf offshor...