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Hama In Fish

Hama is a predator organism farmed fish. Hama by animal groups, distinguished as follows:
1) From the mammals among others: Linsang, otter, weasel and others.
2) From the class of reptiles, among others: water snake, iguana, etc.
3) From the class of birds, among others: Stork, Swallow and others
4) From the class of amphibians, among others: Frogs
5) From the class of fish, among others: Cork Fish, Fish Piranha, Ikan Bawal and others
6) From the class of insects, among others: water beetles, crabs, dragonfly larvae and others.
7) Hama often cause the fish parasite transmission.

Nutritional Deficiency Diseases disebabkab
Fish feed must contain enough protein because protein is needed by fish is relatively high. Lack of protein will lower the body’s resistance to disease fish. In addition other nutrients such as carbohydrates, fats, vitamins and minerals must also comply with the needs of the fish.
1) Protein
Fish need a lot of protein to sisntesis amino acids. Quality protein for fish feed is the presence or amount of essential amino acids (EAA) which can be seen from the growth abnormalities

2) Fat
The lack of fat in feed cause serious illness. Fish tissue containing essential fatty acids n-3 series that fish feed should be enough fat n-3 (linolenic) and n-6 (linoleic acid). Lack of fat will result in swollen and pale with fatty infiltration of the liver, anemia. The main problem of feed containing fats, namely high polyunsaturated fatty acids (PUFAs), including n-3 and n-6 fatty acids because it is easily oxidized by oxygen.

3) Fiber
Unknown effects on fish pathology although affect growth

4) Vitamin
Vitamins are needed in order to process the fish in the normal body metabolism. Lack of vitamins can lead to abnormalities in the body of the fish, both morphological and physiological abnormalities abnormalities.
Lack of Vitamin A, will result in:
a) Slow growth;
b) cornea so soft, bulging eyes, even blindness occurs;
c) Bleeding of the skin and kidneys.

Vitamin B1 deficiency, will result in:
a) Fish weak, lack of appetite;
b) The incidence of bleeding or blockage of blood vessels;
c) motion abnormalities are loss of balance;
d) Fish pale color.

Lack of Vitamin B2, will result in:
a) Fisheye cloudy, bleeding in the eye, lama2 blindness;
b) appetite is lost;
c) Fish dark color;
d) slow growth;
e) Bleeding arise on the skin and fins.

Vitamin B6 deficiency, will result in:
a) The frequency of breathing increases;
b) The fish loss of appetite;
c) The fish is deprived of blood.

Vitamin C is important in the formation of immune therefore Vitamin C deficiency will lead to long-lasting immune deficiencies. Lack of Vitamin C, will result in:
a) Fish darker color;
b) Bleeding occurs in the skin, liver, kidneys;
c) In addition, Vitamin C deficiency causes abnormalities of the spine, bent sideways (scoliosis), bent toward the top and bottom (lordosis).

Nutritive disease can occur even prasentasinya relatively rare. Artificial feed contaminated by aspeegillus flavus, and penicellum sp can cause shrimp with lead poisoning. Contributing factor is the feed given already expiration date, and stored in humid conditions.