How to solve Pelteobagrus fulvidraco’s violent death at the beginning of spring?

Pelteobagrus fulvidraco

In recent years by the breeding scale, disease, epidemic, macro policy, consumption level and other impacts, many famous and excellent aquatic products market fluctuations (such as last year’s bullfrogs), the price is like a rollercoaster general high and low, the farmers are playing a main play is heartbeat.

Compared with other varieties, Pelteobagrus fulvidraco has been playing a stable price, farming profits are also relatively substantial, but is such a small and beautiful fish, in recent years, but the storms. Fry degradation, feed degradation, frequent occurrence of diseases and other issues have become a roadblock to ensure the benefits of aquaculture. Disease is undoubtedly one of the biggest head. Abnormal body color, cracked head and rotten mouth, ascites rotten body, acute enteritis …… Pelteobagrus fulvidraco breeding from high profit to high risk has become a consensus of farmers, a little careless, full plate of loss.

Little pelteobagrus fulvidraco

There are two periods of high incidence of diseases in the process of Pelteobagrus fulvidraco culture.

One is the period of complicated and changeable weather, such as early spring when the temperature difference is large and summer when extreme weather is more frequent. During this period, the water temperature fluctuates drastically, and the stress reaction will lead to hypoxia, dehiscence, and damage to the body surface, gills and intestinal tissues of Pelteobagrus fulvidraco, which will cause disease and death. It is during this period that the magic spell of spring sudden death occurs in consecutive years.

Spring sudden death refers to the red head and red mouth of Pelteobagrus fulvidraco after the temperature rises in the spring, and the sick fish move slowly or “lie on the edge”, followed by acute death. Dissecting the sick fish, we can find abdominal congestion, gill hemorrhage, epidermal deglutition, liver lesions, enlarged gallbladder, red and swollen anus, accompanied by enteritis.

The disease duration is short and the mortality rate is very high, and the mortality rate of Pelteobagrus fulvidraco in some ponds can be up to 100% in a very short period of time. The pathogen was found to be a class of small RNA cup virus, which only infects Pelteobagrus fulvidraco, and both fry and species can be infected, so it was named Pelteobagrus fulvidraco cup virus.

shoal of fish

The main reason for the sudden death in the spring is that Pelteobagrus fulvidraco consumes its own stored fat during the winter fasting period, resulting in increased liver load and increased intestinal damage, which leads to the deterioration of the fish’s body quality and the decline of immune and disease resistance. In addition, all kinds of pathogens are active in the water body in early spring, so it is easier to be attacked by diseases.

As we all know, there is no effective prevention method for viral diseases except vaccines, and there is no effective control program after the occurrence of viral diseases. The only way to reduce the morbidity and mortality is to improve the body condition and stress resistance of the fish, maintain the liver and intestinal function, and do a good job in pond management and prevention.

Another period of high incidence of disease is the fast-growing and fast-paced feeding stage, such as early summer and fall. In this stage, the growth rate of fish is accelerated, and farmers usually increase the feeding quantity and frequency to achieve the ideal pond specification, which is actually a serious crisis.

The metabolism of Pelteobagrus fulvidraco accelerates in this stage, harmful gases such as ammonia and nitrogen increase in the water, dissolved oxygen decreases, and the unstable quality of feed and high-frequency feeding easily cause liver and intestinal injuries, and Pelteobagrus fulvidraco is very prone to mouth closure and ascites, which can lead to death.


The focus of work in this stage is to do a good job of pond management, according to the fish feeding and intestinal conditions to adjust the amount and frequency of feeding, and internal Lidomate® to do a good job of liver and intestinal health care.

Lidomate® is a potent intestinal health and metabolism regulator, through advanced esterification and embedding process, it can effectively regulate fat metabolism while maintaining intestinal health, help aquatic animals to resist intestinal diseases, optimize lipid metabolism process, alleviate the damage caused by fatty liver, and promote the growth of the animals to improve the farming profit.

About Us

Calid Biotech (Wuhan) Co., Ltd. is a specialized company that focuses on the R&D, manufacturing, promoting, and application of new technologies and products for animal lipid nutrition, providing solutions for the feed-grade fatty acid balancing to customers in the livestock and fishery field.

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