The diet of any person, except, perhaps, strict vegetarians, is impossible without animal products. Along with meat, eggs, dairy products, fish is a major source of protein. It is believed that ideally, you want to alternate in the diet of fish and meat.
On its nutritional value fish almost indistinguishable from meat, and on the ease of learning the human body surpasses it. In fish muscle contains from 13 to 23% complete protein. The amount of fat varies widely, from 0.1 to 33%, depending on fish species and time of catch. Fish oil contains large amounts of vitamins A and D, additionally, in the muscular tissue of some fish species have b vitamins In fish contains from 1 to 5% minerals, which include potassium, iron, phosphorus. Marine fish are also rich in iodine, which is of great importance for the human body.
Different species have different palatability, bone structure, and different fat content, that makes their cooking. Continue reading
Among the fish, horror at the man, the most terrible is the white shark. But no less chilling stories to tell about the little fish-the piranha. In many legends she is able to strip a large animal in just half an hour. Only the water gets a drop of blood, piranha transforms into a crazed demon who hits on anything that he comes across.
Here it is — the famous and legendary piranha. A small fish, only some 20 cm, with purple (female) or blue-black (male) color. Can also be olive-silver or bright red. Nice fish? Believe me, it’s no longer be the case. Piranha known reputation of bloodthirsty fish. Just look at her strong jaw with many sharp, pyramidal teeth.
The name itself is fraught with danger. The word “piranha” is borrowed from South American Indians and means “sharp-toothed demon.” Indeed, the teeth they terrible. Jaw muscles are so developed that the piranha can to shave off the smallest piece. She does not tear the prey, and cut it in pieces, like a surgeon with a scalpel. The teeth are very sharp, no thick skin no protection. Adult piranha can bite a stick or a human finger. Piranha can even bite through steel. Piranhas are especially dangerous during the spawning season, when fish pair first, and later one male, guarding a clutch of eggs. Continue reading
To viviparous fish include a large group of fish that live in fresh and salted waters of South America. The main difference between these fish from the others because the eggs fertilized inside the female’s body and are born fully formed fry, ready to eat. The maturation of eggs occurs on average during 22-50 days, depending on the variety.
the guppies smack the most undemanding aquarium viviparous fishes are guppies, that’s why they advise you to start the novice aquarist. These fish have a calm disposition, friendly, beautiful, and at the same time they do not need thorough maintenance, the strict temperature control. Its name was given by name English botany Guppies, who in the mid-19th century brought them to Europe from the journeys together with lots of plants from the tropics. Among the fish were bright with males scattered throughout the body stripes and spots of various colors, and gray, nondescript, but large females. So took root and became widespread in the aquariums of the Europeans the inhabitants of Venezuela, Guiana, Barbados and Trinidad Islands. Continue reading