Protein Nutrition in Fish-IV

Trace minerals in fish nutrition

The role of trace elements in biological systems has been described in several animals. However, the knowledge in fish is mainly limited to iron, copper, manganese, zinc and selenium as components of body fluids, cofactors in enzymatic reactions, structural units of non-enzymatic macromolecules, etc. Investigations in fish are comparatively complicated as both dietary intake and waterborne mine...

Principles of Fish Nutrition

Aquacultural production is a major industry in many countries, and it will continue to grow as the demand for "sheries products increases and the supply from natural sources decreases. As in more traditional forms of animal production, nutrition plays a critical role in intensive aquaculture because it in#uences not only production costs but also "sh growth, health and waste production (Gatlin,...

Nutrition IV

Crude glycerin is a co-product from biodiesel production. In 2006, approximately 250,000 million gallons of biodiesel were produced, which translates to 75,000 metric tons of glycerin. Glycerin contains approximately 3,650 kcal/kg of gross energy and, as such, it may be a potential dietary energy source for poultry. Three energy balance experiments were conducted to determine AMEn of glycerin u...

Fish and nutrition in the Pacific Islands.

Nutrition and reproductive capacity in fish.

they lick the surface of her body and is passed on from one individual to another. This substance inhibits the worker bees from building brood cells for new queens. It also inhibits the development of eggs by laying workers. Whether this is a direct effect of the ‘queen substance’ on metabolism or whether the substance serves merely as a token stimulus to the central nervous system, causing the...