Most aquatic farming systems are intensive or semi-intensive, especially for fish and shrimp. Intensive fish farming requires extra food for stocked fish. As a result, the cost of such cultivation is high. The main purpose of fish feed preparation and formulation is to mix nutritional value and balanced ingredients which keep the growth, reproduction and … Read more
Osmosis is the process by which the solvent enters the area from low density to high density. In this case, two different densities of a solution are separated by a differential permeable membrane. The kidneys play an important role in the osmoregulation of fish. However, most of the osmoregulatory functions are performed by other organs … Read more
Labeo rohita is the important food fish that belongs to the carp family Cyprinidae under order Cypriniformes of Class Actinopterygii. It is also known as rui, rohu, or roho labeo. It can tolerate a wider temperature range, and it is the most adaptable and important cultured fish species in Bangladesh, India, Pakistan, and Myanmar. They … Read more
There are many animals that have adapted to living in water, but mammals have evolved a range of traits that give them a competitive advantage in the water. The aquatic adaptations of mammals are more diverse than the adaptations of any other group of animals. Mammals can be found in all kinds of water bodies, … Read more
Nervous tissue is also known as neural tissue. It is the prime component of nervous system which controls and regulates activity and bodily functions. It is composed of two parts: (1) Central Nervous System or CNS and (2) Peripheral Nervous System or PNS. In this case, CNS comprises the spinal cord and brain while PNS … Read more
The sense organs of Rohu fish (Labeo rohita) consist of eye, internal ear, lateral line sensory organ and olfactory organ. These organs are made according to the general design of bony fish. Eye The basic structure of the eyes of Rohu fish (Labeo rohita) is similar to the eyes of other vertebrates. The eyeball is … Read more