Nutrition

A.M. Abdelhamid et al, Egypt, look at the possible effects of feeding Nile tilapia, silver carp, common carp and African catfish with dried treated sewage. Part one focuses on growth performance, feed utilisation and chemical composition.

Fish meal has historically been the protein source of choice in aquatic feeds, but global supplies have reached a plateau making it less available and more expensive. As a consequence, the use of cheaper proteins made from processed plant proteins, byproducts …

Labeo rohita may be able to utilize the non-gelatinized corn starch based diet more efficiently and being economical it spares the protein based cost effective feed, according to research by Mahwish Qamer et al, University Faisalabad, Pakistan.

The use of blue green algae Spirulina in aquaculture has several potential advantages over the production of fish, writes Nasreen M. Abdulrahman and Hawkar J. Hamad Ameen, University of Sulaimaniya.

Research conducted by Susan Laramore et al, Harbor Branch Oceanographic Institute at Florida Atlantic University, studied whether fresh U. lactuca harvested weekly from a land-based integrated multi-trophic aquaculture system could be utilized as a nutritional…

Aquatic animals have a much closer relationship to their external environment than terrestrial animals and are thus more susceptible to pathogens in their environment.

To test whether digestion affected swimming performance in an active forager and whether the possible effects varied with temperature, Jing Peng et al, Chongqing Normal University, investigated the critical swimming speed (Ucrit) and the resting and active met…

Ectoparasites are key agents responsible for causing diseases in farmed fish. The Nile tilapia, in particular, has been shown to be susceptible to infestation by trichodinids and monogeneans, write Santiago Benites de Pdua, Aquivet Sade Aqutica, Roney Nogueira…