Difference Between Tilapia and Carp, Difference Between Tilapia and Croaka

Tilapia, commonly known as African crucian carp, belongs to the order Perch, Perciformes, Cichlidae, and Tilapia (also known as the cichlidae, cichlidae). The genus is native to Africa and has more than 600 species, of which 15 species are currently being farmed. Luo Feiyu is a group of small and medium-sized fish, its appearance and size are a bit similar to crucian carp, and the fins are like mandarin fish.

Broad-salt fish, which can survive in both sea and fresh water; Resistant to low oxygen, it generally inhabits the lower layer of water, but changes with the change of water temperature or the size of the fish.

Tilapia has a wide range of diets, most of which are plant-based omnivorous, very poor food, and large food intake; It grows rapidly, especially in the juvenile stage. The growth temperature of Luofei fish is closely related to temperature, the growth temperature is 16 38, and the suitable temperature is 22 35.

Tilapia was first introduced to Taiwan Province in 1946 by Wu Zhenhui and Guo Qiyan from Singapore, and in honor of these two people, it was first called "Wu Guo Fish". In 1957, it was introduced from Vietnam to the mainland of China, also known as "Vietnamese fish". Because it is native to Africa and resembles the native crucian carp, some people call it "African crucian carp".

There are two kinds of tilapia introduced to Yingshan Hot Spring in Hubei Province: one is Mozambique tilapia, which was brought to Yingshan Hot Spring from Jingshan County in 1972; The other is called Nile tilapia, which was introduced by the Hubei Provincial Fisheries Research Institute in 1979. After they settled down, they all lived well.

Carp is a benthic omnivorous fish that eats both meat and vegetables. The bait spectrum is extensive, the snout bone is well developed, and it often arches mud to feed. Carp is also a low-level ectothermic animal, and its body temperature changes with the change of water temperature, so it does not need to rely on energy consumption to maintain a constant body temperature, so the total amount of bait to feed is not large.

At the same time, carp, like most freshwater fish, belongs to the stomachless fish species, and the intestine is short, and the metabolism is fast, so the feeding habit is to eat less and eat frequently. The digestive function of carp is highly dependent on water temperature, and feeding seasonality is strong. In winter (especially under the ice), the body fat is basically in a semi-dormant fasting state, and the body fat is depleted in the winter, and when spring arrives, they are eager to eat high-protein foods to replenish it.

In late autumn, winter is approaching, and in order to accumulate fat, there will also be a peak period of "grabbing", and it is also dominated by high-protein bait. Hence the early spring. Carp fishing in late autumn should be based on animal bait such as earthworms and river shrimp.

After spring, as the temperature rises, the amount of fish feeding increases, and the quality of bait is no longer the main thing, but the quantity rises to the first place. Therefore, for a long period of late spring, throughout the summer, and early autumn, carp is mainly vegetarian. At this time, fishing should be done with bait, bad food, etc.

Although the carp is a benthic fish, this does not mean that its range of activity is static. The seasons change, and the water temperature is warm and cold. Wind direction, air pressure, change of synodic hope, turbidity of water quality, size of water flow, fluctuation of water level, dissolved oxygen in the water body, bait environment, etc., will change the activity area of the fish at any time, so that they often move more sharply, if in a large body of water, this is called 'migration'.

Compared with other freshwater fish, carp have common and special habits. These habits are mainly determined by the need for reproduction, the need for forage, and the need for aerobic survival.

TilapiaThe difference between the dragon and the dragon:

Tilapia: Native to Africa, it is a tropical fish, and there are more than 100 species of tilapia including subspecies. Tilapia has the characteristics of fast generation, high yield, miscellaneous diet, few diseases, and strong fecundity.

Dragonfish: belongs to the order Floiceformes, Tongue Soles, Tongue Soles, commonly known as sub-plate fish, sole, sole, is a warm temperature offshore large demersal fish, living and inhabiting China's coastal sea area all year round, with wide temperature, wide salt and adapt to the characteristics of changeable environmental conditions, suitable temperature range, the most suitable water temperature 14-24, suitable salt range 14-33.

Tilapia habits

Tilapia inhabits the pelagic pelagic and is an omnivorous fish based on plant-based feeds. Tilapia is not tolerant to low temperatures and will freeze to death at a water temperature of about 10.

Some species of tilapia have oral hatching behavior, in which the female holds the fertilized eggs in her mouth until they hatch into juveniles, which is very beneficial for her reproduction. In some species of tilapia, before breeding, males dig the subsoil to build pot-shaped nests, which have a strong territoriality, and the females lay their eggs in the nests, and after hatching, the females will hold the juveniles in their mouths for protection.

Tilapia is a tropical fish.

Tilapia, commonly known as: African crucian carp, non-crucian carp, Vietnamese fish, South Sea crucian carp, etc. Originally referred to the species of mouth-hatched non-crucian carp with Mozambique as the model origin:

Mozambique mouth-hatched non-crucian carp is now the common name of several species of fish in the genus Cichlidaceae, non-crucian carp and non-crucian carp. In English, it is collectively referred to as tilapia.

Now it is the world's aquaculture industry's key scientific research and cultivation of freshwater aquaculture fish, and is known as one of the main animal proteins in the future. It usually lives in fresh water, but can also live in saltwater with different salt contents, and can also survive in shallow water of lakes, rivers, and ponds.

It has a strong adaptability, can reproduce in a small area of water, and can even grow in rice fields, and has a strong adaptability to water with less dissolved oxygen than Nenzen. The vast majority of tilapia are omnivorous and often eat plants and debris in the water.

Breeding bait feeding:

Tilapia can be fed 2 or 3 days after entering the culture surface. Tilapia has a wide range of diets, and under the conditions of artificial breeding, it can be fed with a variety of feeds, such as wheat, corn, cake meal, etc. The protein content in the feed should start at 32% 35%, and the daily feeding volume should be 3% to 5% of the total body weight of the fish.

When the individual size grows to about 200 grams, the feeding amount can be adjusted to 2% of the total body weight of the fish, and the protein content in the feed is guaranteed to be 27% to 29%. When the individual reaches about 300 grams, tilapia enters the fastest growth period, and the daily feeding amount is maintained at 1% 2% of the fish body weight, and the protein content in the feed is more than 35%. Feeding is done twice a day at 8 a.m. to 9 a.m. and 3 to 4 p.m.

1. Difference in body structure: tilapia's tail is relatively round, and the dorsal fin is relatively long; However, the tail of crucian carp is similar to that of scissors, and its dorsal fin is shorter; 2. Differences between families and genera: crucian carp is a carp order, while tilapia is a perch order; Differences in distribution waters:

The distribution range of tilapia is mainly in the south, while the distribution range of crucian carp is relatively wider, and it is basically found in all parts of China.

The difference between tilapia and crucian carp.

1. Differences in body structure

Crucian carp and tilapia also have a relatively large difference in body structure, the most obvious being their tail and dorsal fin. Tilapia have a very long dorsal fin with spines on it, while crucian carp have a shorter dorsal fin. In addition, the tail shape of tilapia is round, and the tail of crucian carp is like scissors and is pointed.

2. Differences between families and genera

Tilapia is a perch, whereas crucian carp is a cypriniform. And the families and genera of the two are also different, tilapia is the genus tilapia of the cichlid family, and crucian carp is the genus of carp of the carp family, from which it can be seen that the difference between the two is very large.

3. Differences in distribution waters

Tilapia and crucian carp usually live in the freshwater of our country, but the specific distribution area is different. Crucian carp has a wider distribution range and is basically found all over the country, but tilapia is mainly found in the southern part of the country.