When we follow the Coast of the Yellow Bohai Sea from Dandong Donggang to Dalian, Panjin, Jinzhou, Huludao, Tangshan Leting, Changli; from Dongying, Yantai, Weihai, Qingdao, to Fujian Xiapu, from north to south, followed by contiguous sea cucumber breeding areas, we learned: Although the sea cucumber aquaculture industry is grand in scale and the cumulative investment in the country is hundreds of billions, farmers are now generally experiencing the dilemma of large investment and little money, facing the current situation of disease, shrinking production and declining quality, and the development of the industry has entered a trough. These really make our industry engaged in aquaculture technical support deeply shocked and anxious!
<b>The diseases that occur in sea cucumber farming are generally:</b>
In the spring of March, when the ice is changed, the ginseng and skin are drifted;
Swelling of the mouth, spitting and peeling caused by rising water temperature in April and May;
In mid-to-late May, after being stimulated by climate change or drugs, return to the reef early for summer sleep;
In August, the bottom of the water body is stratified at the high temperature, the sea cucumber is hypoxic poisoning, and some ponds even appear floating ginseng;
The October-November rally recurs from the disease that occurred during the spring season change.
In addition, when the reef is off the beach, the sea cucumber does not go down the beach, does not feed, has weak vitality, is stiff and stiff, and does not shrink for a long time; when it returns to the reef, it has no vitality and cannot enter the reef.
This makes the original long growth cycle of sea cucumbers, the growing time is prolonged, no yield, quality decline, more than three years of pond sea cucumber growth is slow, can only grow to a pound of 10 to 15 heads. In this way, it really makes the sea cucumber farmers miserable, and many people feel that this sea cucumber cannot continue to be raised.
Over the years, in the technology and management of sea cucumber farming, there have been many successful cases and discussions on improving the yield and economic benefits of sea cucumber farming, mainly around the seedlings, water quality, substrate; large seaweed excessive death and corruption caused by sea cucumber hypoxia poisoning; chemical drugs, pesticide poisoning; climate change and other issues to be developed and solved, rarely involving the "sea cucumber health" section. We have been engaged in the research and practice of sea cucumber breeding for many years, and have accumulated a large number of first-line aquaculture production experience and successful cases, and we have a deeper understanding that the success of sea cucumber farming must start from health.
<b>The concept and influencing factors of sea cucumber health are mainly reflected in:</b>
First, the environment is healthy.
The health and environment of sea cucumbers are closely related, and the difference between sea cucumber farming and fish and shrimp farming is that it cannot be restored when the pond is cleared. Long-term breeding, the environment can not be repaired, the concentration of harmful factors exceeds the standard, such as; nitrite, hydrogen sulfide is high, the bottom dissolved oxygen is low, the substrate is acidic, the number of harmful pathogens at the bottom exceeds the standard, and the bottom heavy metal exceeds the standard. As well as years and years of drugs and external environmental stimuli, etc., the sea cucumber's congenital immune system has been in a state of high stress for a long time. Damage to the immune system of sea cucumbers, decreased immune function, decreased resilience. Therefore, it is very important for sea cucumber farming to adopt in-situ restoration while raising, starting from environmental balance and environmental safety, to reduce the impact of the environment on the health of sea cucumbers.
2. Physiological health.
The physiological state is good or bad, which is a mirror of physiological health. Symptoms such as anorexia, weakened vitality, stiff black shrinkage, old ginseng, and growth retardation of sea cucumbers are not caused by bacterial and viral infections, but physiological sub-health states - physiological damage. Physiological nutrient imbalance, decreased metabolic function, decreased function of the immune defense system. In the process of long-term growth and development, sea cucumbers need multiple energy nutrients to meet physiological and metabolic needs, and maintain the perfect function and coordination of various tissues of the body. Long-term pond culture has made these nutrients gradually barren and scarce, sea cucumbers can not absorb sufficient nutrients, natural physiological dysfunction, and disease resistance declines. Quality and yield are affected.
Third, the environmental adaptability is strong.
The ability of sea cucumbers to adapt to changes in the living environment, climate, water temperature and pressure depends on its own immunity. In the face of the current breeding internal environment and external environmental pollution, many factors are damaging the immune system of sea cucumbers, and sea cucumbers have to rely on their own strength to resist, which is really a lot of pressure! Therefore, it is necessary to supplement the sea cucumber with high-energy plant active nutrients in time to strengthen the adaptability of the sea cucumber.
We have developed and applied the major scientific and technological achievements of the international advanced level of "plant active substances - full effect Pirex" in the research and practice of sea cucumber farming. Prevent the disease, cure the disease, and start to maintain the health of the sea cucumber. Sprinkle "Plant Active Substances - Full Effect Pirikin" 6 times a year: 3 times in spring, 1 time in summer, 2 times in autumn and winter; and then use 2 to 3 times of biodistroversion.
In line with the basic principle of maintaining health and ensuring the protection against diseases, the breeding environment is fully improved. It is necessary to ensure that prevention is guaranteed and that there is an effect on treatment. Occasional onset of the disease, targeted treatment is taken. The application practice of sea cucumber farming for several years has fully confirmed the effectiveness of this measure. As a result, sea cucumber farming breaks through the production bottleneck of poor quality and low yield.
Various diseases in the process of sea cucumber growth and development have been effectively prevented and controlled, and the quality and yield of sea cucumbers have been naturally improved. In the past five years, we have continuously promoted tens of thousands of acres of ponds, and they have achieved gratifying results. Farmers try it for themselves, and the effect speaks! See if your sea cucumber has decreased disease, improved health, and greatly improved quality and yield! Of course, every year is always in the passive treatment of one disease after another, how to cure it, how to cure it? Health is the only way for the sustainable development of sea cucumber farming.
Author: Xu Meimei, technical director of Dalian Golden Bay Aquaculture Technology Co., Ltd