In this study, the effects of oxygen supplementation in different stocking densities of rainbow trout (Oncorhynchus mykiss) on the specific growth rates (SGR), feed conversion ratios (FCR) and survival rates were investigated in a commercial-scale culture system. High density cultures were maintained in a total of nine (12 m3) flow-through systems supplemented with O2. Initial stocking rates fo...

The open tank paradigm, also known as novel tank diving test, is a protocol used to evaluate the zebrafish behavior. Several characteristics have been described for this species, including scototaxis, which is the natural preference for dark environments in detriment of bright ones. However, there is no evidence regarding the influence of "natural stimuli" in zebrafish subjected to novelty-base...

Single display privacyware is a technique for collaborative interaction in which one display is used for multiple users, but each user is able to see certain private information that others cannot. In this paper, we describe and evaluate two applications of single display privacyware. One is the use of fish tank virtual reality for multiple users, and the other is hiding private information fro...

Ornamental fishes are among the most commonly owned companion animals in world, however, transportation process during acquisition can result being exposed to biotic and abiotic conditions which compromise welfare. While many studies have considered methods of improving welfare for food through physical social enrichment, few how improve ornamental post-transport. We investigated whether (i) in...

The effects of K. africana fruit (Lam. Benth), family bignoniaceae, were investigated on the sperm quality of C. gariepinus, (mean body weight, 396.05±7.04). Five diets with crude protein of 40% were formulated with different inclusion levels of K. africana powder. D1 (control) has 0 g/kg of the powder, while D2, D3, D4 and D5 has 50, 100, 150 and 200 g/kg of the K. africana powder. A total of ...

The effects of four prebiotics (fructo-oligosaccharide, Bio-MOS, transgalacto-oligosaccharide and GroBiotic-A) on digestive enzymes and intestinal morphology were studied in juvenile hybrid striped bass (Morone chrysops × M. saxatilis) and red drum (Sciaenops ocellatus) using two separate 8-week feeding trials. Red drum were fed experimental diets with the four prebiotics each individually supp...

The transport of live fish is a crucial step to establish fish culture in captivity, and is especially challenging for species that have not been commonly cultured before, therefore transport and handling methods need to be optimized and tailored. This study describes the use of tuna tubes for small-scale transport of medium-sized pelagic fish from the Scombridae family. Tuna tubes are an array...

Streptococcus iniae is one of the most important agents that causes high mortality and losses in rainbow trout farms in Iran and the world. These bacteria can affects the consumers and people who deal with aquaculture via affected fish. So, viability of this bacterium in frozen fish and fish product can be useful for health care of consumers. A total of 90 rainbow trout, with average weight of ...

The toxin content in various life cycle stages of tank-cultivated bullseye puffer (Sphoeroides annulatus) were analyzed by mouse bioassay and ESI-MS spectrometry analysis. The presence of toxin content was determined in extracts of sperm, eggs, embryo, larvae, post-larvae, juvenile, pre-adult, and adult fish, as well as in food items used during the cultivation of the species. Our findings show...

This paper describes the potential of aquaponic as a poverty eradication tool in Malaysia. Although Malaysia is recognized as a developed country, poverty is still occurring among Malaysian, especially from rural area. Therefore, aquaponic – a modern farming system is being introduced to benefit the low income family. Aquaponic is the term that described the synergistic combination of aquacultu...