by
Dr Robert Tillner, Product Manager, Aller Aqua Research
The reliable production of high quality offspring is paramount for successful aquaculture. This is true for both a shift from quantity to quality in established species as well as for closing the lifecycle of new candidate species.
High mortality rates can occur in hatcheries if abiotic and biotic conditions are not within tightly framed optima, which is a consequence of the reproductive strategy of many teleost fish species.
The cultivation of many species still relies on the provision of live feed in the early stages. In fact, the discovery and extensive use of rotifers and Artemia may have been the main driving force behind the tremendous growth in aquaculture production so far. Nevertheless, the tremendous efforts in research for manufactured diets in the recent years has substituted live feeds to a large extent.
Aller Aqua has increased its efforts to supply fish in the early life-stages with optimal and tailored feeds. Some fish species benefit from more energy-rich feeds such as fry of rainbow trout, whereas other fish species thrive on feeds with less energy. A series of trials at Aller Aqua Research in Buesum, Germany have shown significantly higher growth, lower FCR and improved nutrient retention in fry of rainbow trout when fed a more energy-rich feed.
Consequently, Aller Aqua relaunches its successful ALLER FUTURA EX GR with a higher fat and energy content, fully dedicated to the nutritional requirements of rainbow trout and other salmonids. At the same time, Aller Aqua launches ALLER THALASSA EX GR with a balanced protein to fat ratio, more suited to larvae and fry of marine species as well as species with lesser energy requirements.
Read the full article in the International Aquafeed magazine online, HERE.
The reliable production of high quality offspring is paramount for successful aquaculture. This is true for both a shift from quantity to quality in established species as well as for closing the lifecycle of new candidate species.
High mortality rates can occur in hatcheries if abiotic and biotic conditions are not within tightly framed optima, which is a consequence of the reproductive strategy of many teleost fish species.
The cultivation of many species still relies on the provision of live feed in the early stages. In fact, the discovery and extensive use of rotifers and Artemia may have been the main driving force behind the tremendous growth in aquaculture production so far. Nevertheless, the tremendous efforts in research for manufactured diets in the recent years has substituted live feeds to a large extent.
Aller Aqua has increased its efforts to supply fish in the early life-stages with optimal and tailored feeds. Some fish species benefit from more energy-rich feeds such as fry of rainbow trout, whereas other fish species thrive on feeds with less energy. A series of trials at Aller Aqua Research in Buesum, Germany have shown significantly higher growth, lower FCR and improved nutrient retention in fry of rainbow trout when fed a more energy-rich feed.
Consequently, Aller Aqua relaunches its successful ALLER FUTURA EX GR with a higher fat and energy content, fully dedicated to the nutritional requirements of rainbow trout and other salmonids. At the same time, Aller Aqua launches ALLER THALASSA EX GR with a balanced protein to fat ratio, more suited to larvae and fry of marine species as well as species with lesser energy requirements.
Read the full article in the International Aquafeed magazine online, HERE.
The Aquaculturists
This blog is maintained by The Aquaculturists staff and is supported by the
magazine International Aquafeed which is published by Perendale Publishers Ltd
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