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Book (stand-alone)Fish silage production by fermentation
A manual on how microbial fermentation can turn fish waste into a valuable feed ingredient or fertilizer
2024Also available in:
No results found.This publication is a practical manual that will guide the reader through the main principles of producing fish silage by fermentation and explain each step of the fermentation process needed to successfully become a fish silage producer. Fish, including shellfish, are highly nutritious and in much demand all over the world. However, fish processing by-products, in particular viscera (guts), are highly perishable. If not preserved or processed within a relatively short time after harvest, they may deteriorate rapidly making them unfit for human consumption or other uses. In many cases, processing leads to the removal of significant parts of the fish, such as the viscera, head, belly flaps and backbone. Depending on the species, these parts may represent between 30 percent and 70 percent of the fish. Some parts, such as gonads, belly flaps and backbones, may be used directly for human consumption, but most of the by-products of fish processing have traditionally been wasted, leading to negative environmental impacts, or they have been used in fresh form as feed for livestock or as fertilizers. -
No Thumbnail AvailableProjectStudies on the effects of fresh and fermented manure on fish production
Establishment of a Network of Aquaculture Centres in Asia
1987Also available in:
No results found.With chemical fertilizer (N,P) as control, comparative studies were made on the effects of fresh and fermented pig manure on fish production. The results indicated that fish production in ponds supplied with fresh pig manure was the highest, compared to those with fermented pig manure, or control ponds. It appeared that fish in fresh pig-manured ponds not only could utilize bacteria, detritus and plankton, but could also directly feed on pig manure; thus pig manure was utilized better and result ed in higher fish production.
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