An unresolved problem in aquaculture ponds is the susceptibility of freshwater fish to parasitic diseases, such as those caused by Centrocestus trematodes, which are transmitted by snails of the Thiaridae family. Two species of this family are common in Tilapia aquaculture ponds in Israel, the...

This article reports on the investigations on the health and immune enhancing properties of two new feed additives XTRACT®Fish and XTRACT®Shrimp in the Pacific white shrimp Penaeus vannamei and in the Nile tilapia Oreochromis niloticus, respectively. The studies looked at how the feed additives...

Intensive aquaculture systems are being used to efficiently produce fish and shrimp. However, an intrinsic problem of these systems is the rapid accumulation of feed residues, organic matter and toxic inorganic nitrogen species. This cannot be avoided, since fish assimilate only 20-30% of feed...

1. Subtropical seawater fish ponds at Elat in Israel develop algal blooms that can not be used by the fish, but oysters use the algae and clean the pond water so that it does not pollute when discharged into the sea. Temperate-water oysters Crassostrea gigas were grown in the ponds or pond outlet...

Israeli aquaculture began in the 1920s, with common carp monoculture. This was followed by polyculture of carp with tilapias, grey mullet, and planktivorous carp. Scientific research on polyculture started in the 1950s and has since contributed to the global science and practice of green water ...

We present field observation results from October 2019 to February 2021 in Israeli fish farms. Surprisingly, two metazoan parasites, the larvae of Contracaecum multipapillatum and unidentified metacercaria N1, which disappeared from Israeli fish farming 30 years ago, were commonly found in the...

Profitability is key in fish farming, just as it is to any other enterprise. For the farmers to actualize high-profit margins, it is imperative to have access to well-balanced nutritive and cost-effective feeds, backed by sound on-farm feed management practices. This paper audits Kenya's fish feed ...

Trials with the fresh-water prawn Macrobrachium rosenbergii had begun in Israel almost 4 years previously. Good results were obtained with artificial spawning and rearing to postlarval stage, and the data are to be published later. Hatcheries now produce fry for stocking ponds. In Israel the...