Factors affecting the survival rate of wild ricefield eel

The source is complex

Many ricefield eels have a fever or other diseases before farmers buy them.

There are many parasites

According to our anatomical observation, in 200 Monopterus Albus, the intestines of each Monopterus Albus were parasitized with acanthocephalus to varying degrees, with 3 at least and 122 at most. These parasites live in the intestines of Monopterus Albus, which not only absorb the nutrition of Monopterus Albus, but also damage the intestinal wall of Monopterus Albus, especially in the eating season of Monopterus Albus, Monopterus Albus can not eat food, so the nutrition supply is seriously insufficient, but the parasite sucks the intestinal wall of Monopterus Albus, which can easily cause enteritis of Monopterus Albus. In addition, the artificial storage and transportation is unscientific, which can cause fever and other complications at the same time. Ricefield eel is prone to parasitism near the head of a very small leech (leech), this small leech called "quasi-flat leech". On the one hand, these flat leeches suck blood from eels, and at the same time, they often cause serious damage to the body surface of ricefield eels. Under the condition of ultra-high density storage, Monopterus Albus causes "fever" and a large amount of mucus that plays an important role in protecting its body surface. In addition, there are many wounds on the body surface caused by leeches, and the bacteria can easily invade the eel body and lead to the outbreak of eel disease.

Poor physique

Due to the harm of a large number of parasites and the lack of guaranteed feed, the wild ricefield eel is usually hungry and full, which is why the wild ricefield eel is generally very thin and artificially cultivated ricefield eel is very fat. Due to the lack of nutrition, the physique of wild ricefield eel is poor, and its resistance to disease is generally lower than that of farmed ricefield eel.