The word ‘chondrichthyes’ came from Greek word ‘chondr’ meaning cartilage and ‘ichthys’ meaning fish. Chondrichthyes include all the cartilaginous fishes that contain cartilaginous skeletons. All the representatives of this group have jaws and paired fins with paired nares. The body is covered with placoid scales. Their body growth range from 10 cm (finless sleeper ray) … Read more
Feed evaluation is a method of measuring the amount of nutrients in a portion of prepared food and the quality of these nutrients. That is, food evaluation gives an idea about the usefulness of food. Importance of Fish Feed Evaluation and Quality Estimation Knowing the nutritional value of any prepared food; Measuring food preparation time … Read more
The term “glycolipid” defines the combined lipids of the glycerol moiety and these fatty acid chains. Glycolipids occur in nature in combination with proteins, forming larger structures known as glycosomes. Glycolipid is an amphiphilic molecule that shows promise for fighting cancer. It looks like a small soap-bubble; surfactant-based, it dissolves in water (hydrophilic), and within … Read more
According to New et.al (1993), farm-made aqua feed refers to a type of compound feed that has a pellet or other shape and contains one or more artificial and natural food ingredients and is only made for a specific farm. It is never commercially marketed or produced for profit. Farm Made Feed Characteristics 1. It … Read more
Respiration is a biochemical process by which food in the cell is oxidized with the help of oxygen to produce energy and carbon dioxide (CO2) is released as a by-product. All kinds of biological function require such energy. Carbohydrates are mainly involved in energy production. In the absence of carbohydrates, this energy is produced by … Read more
In addition to the gills, all other respiratory organs that exist in different fish are called accessory respiratory organs. For adaptation to special environments, these accessory respiratory organs are developed as an additional part of the gills in fish. In most cases, tropical freshwater fish are seen to develop these organs, but this is very … Read more