Rui Fish
Rui fish is a very popular, common and mostly cultivated freshwater fish. species of south Asia. It is a carp fish of cyprinidae family. Rui fish is also known as some other name like rohu fish, rohit fish etc. Among the species of carp fish the appreciation ofrui fish is maximum. It is very tasty and delicious. Rui fish is very popular to the people of Bangladesh, India, Nepal, Thailand, Pakistan and some other Asian countries. It is generally a fish of river. But it also can be found in all types of natural water reservoir. Rui fish farming in pond, mere or lake is very popular and profitable.
- Kingdom : Animalia
- Phylum : Chordata
- Class : Actinopterygii
- Order : Cypriniformes
- Family : Cyprinidae
- Genus : Labeo
- Species : L. rohita
Physical Characteristics of Rui Fish:
Physical characteristics of rui fish by which we can recognize them are described bellow.
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| Rui Fish |
- The body of rui fish is thick. But the head and tail is comparatively narrow than their body.
- Their whole body is covered with cycloid scales. Except the head and fins.
- Head is triangulated and mouth is inferrior.
- Surface and under surface is brown colored.
- Belly is white silver colored.
- Rui fish has two pair of nostril.
- Mouth is covered with two lips.
- There are many small indention and pair of trunk in the brink of lips.
- Middle place of caudal fin is bifurcated. So it is called homocercal.
- There are seven fins in the body of rui fish including odd and even fins.
- Rui fish lengths about highest 90cm to 1m.
- Scales are smooth and well arranged in a row.
- Front side of head and back side is blackish colored.
- The body is slightly curved to upper side.
- There are about 15-16 cords in the dorsal fins of rui fish.
- The scales of body is reddish colored. But the belly scales is silver white colored.
Breeding:
Rui fish gain sexual maturity at the age of 3 years. A female rui fish contain about 0.3 millions of eggs. In favorable environment they lays eggs within April to July. Thy lays eggs in open water reservoir like river. Minnow of this fish can also be produced artificially. Rui fish don't lays eggs in stagnant water.
Food:
Rui fish generally ramble and consume food from the middle level of water. The main food of rui fish is plant and putrescent organic substances. The minnow of rui fish eats only zooplankton and adult fish eats generally phytoplankton. For commercial rui fish farming fish meal, cake, rice dust, wheat chaff etc. can served as supplementary food
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