Hormones are secreted from the ductless glands, which are considered to be the regulators and stimulants of all the biological functions of the animal body. These ductless glands are called endocrine glands and the system consisting of glands is called endocrine system. Endocrine gland acts on target organ and controls their various physiological activities such … Read more
The goldfish is a single-tailed, type of freshwater fish that has the scientific name Carassius auratus. It is also known as the Common Goldfish or just simply Goldfish. They are found in habitats all over the world, including North America, South America, Europe, Australia and Asia. They are most commonly found in Japan. Goldfish are … Read more
Teleost is a diverse group of ray-finned fishes which belongs to largest infraclass Teleostei under the class Actinopterygii. The group teleost includes 40 orders and 448 families with over 26000 species. They are the most advanced fish among the bony fishes. The world`s important sport and commercial fishes include this group. The length of the … Read more
There are many types of food ingredients that do not have a scientific explanation for their use. This type of supplemental food or food ingredient is called non-conventional feed resources( NCFR). Such food items are separated from grains and agricultural by-products. NCFR or unconventional food is not commonly used commercially for cattle, poultry and fish. … Read more
Fish take food from the aquatic environment for life sustaining, body building and growth. Different species of fish feel comfortable in different aquatic environments. The foods that fish consume from different aquatic environments are varied. Fish consume a large number of living ingredients and inert substances as food. Fish eating techniques are more diverse and … Read more
The heart is a special pump device with a valve in the circulatory system. In case of fish, the heart is a folded tube that contains three or four enlarged areas. The blood brought through the veins travels from the heart to the gills through the ventral aorta and the heart always contains carbon dioxide … Read more