Text | Tianjin Rongchuan, Liu Zeheng, Li Zhuangzhuang, Li Zhongqing
Introduction: The era of high density = high yield = high profit has passed......
Judging from the overall trend of factory farming in Shandong in 2023, shrimp prices are affected by climate, diseases, supply and demand, and import and export policies, with nearly half of 2024, the price of vannamei shrimp is still sluggish, for the entire aquatic industry, it has entered the era of "low gross profit", how to "reduce costs and increase efficiency", how to pass through the low period of shrimp prices, through the dark period of frequent breeding diseases, for our "aquatic people", where is the road?
The development trend of Shandong factory in 012023
Judging from the overall trend of factory breeding in Shandong in 2023, the success rate of breeding is only 3-4 percent, and the success rate of breeding will decline by 50% year-on-year in 2022; The success rate of some breeding areas is more than 7 percent, including Weifang, Yantai and Laiyang. The success rate of factory shed farming in Shandong has decreased greatly, and the average profitability of farmers is less than 50%, not only the profit margin has been greatly reduced, the average profit has been greatly reduced, and the aquaculture industry has entered the era of "low gross profit", which is mainly restricted by various factors.
(1) Average yield: the replenishment rate of some shrimp seedlings is low, and the shrimp at all stages of breeding are more diseased and less stock, resulting in low yield, thereby restricting profits.
(2) shrimp specifications: the rhythm of shrimp raising after thinning shrimp rises, and the shrimp growth rate caused by seed degradation is slow.
(3) Shrimp price: blind seedling release cycle and shrimp seedling growth speed constraints, resulting in no shrimp when the price is good, and the price falls before the shrimp is raised. Therefore, under the comprehensive influence of all aspects, the overall profitability of Shandong factory has decreased significantly compared with previous years.
02 Problems faced by factory light sheds
Today's breeding rhythm is no longer high density = high yield = high profit, due to the lack of underground water sources, breeding diseases increase, high pathogenic seedlings, high ammonia nitrogen and salt stress in the middle and late stages of breeding and other external factors, so that shrimp faster, bigger, stronger need to be under a reasonable and safe breeding plan, do a good job of feeding, water stabilization, bottom change, disease prevention, full oxygen, sewage and water exchange, etc., regulate and control the risk to the lowest range, including seedling stage to strengthen weak seedling elimination rate, breeding mid-term strong body disease prevention, breeding later fertilization and strong price.
03 Breakthrough of factory light shed, management plan of high-quality households
As mentioned above, although the overall success rate of factory farming in Shandong in 2023 is only 3-4 percent, the success rate of some breeding areas is more than 7 percent, including Weifang and Yantai Laiyang. We sampled some high-quality model households from Laiyang, Yantai, and their shrimp data for 2023 winter stubble shrimp are shown below.
As can be seen from the figure, with the blessing of large specifications + high survival rate, the profits of farmers are basically guaranteed, and the key to high profits is: long-term improvement + physical improvement + shortening of cycle + decline in risk control + cost reduction. That is, to raise the largest and safest shrimp in the shortest time and cost.
Under the fierce competition in the aquatic industry in 2023, some farmers have broken through their thinking, upgraded their models, and conformed to the needs of the market. "Let shrimp be equivalent, not equivalent".
Due to the basic conditions of the factory farming model, it has extremely high requirements for factory hardware and water environment, and the low pollution, high conversion rate, high protein and other factors of bait are particularly important. From the perspective of farmed animals themselves, as a carnivore, the growth needs of Penaeus vannamei shrimp, the development needs of the liver and pancreas, and the needs of intestinal organs need to be provided through good "food supplements". The shrimp "eat well", "drink well" and "grow strong" is the real sense of Rongchuan's "three treasures fast shrimp".
1. "Eat well"
From the point of view of bait selection: seedling stage: Miao Kangbao. Rich in nutrients and strong attractants, the intestines are black and coarse, and the liver is improved; Middle stage of cultivation: shrimp Kangbao. High protein, promote development, stabilize the liver. Late stage of breeding: shrimp treasure. Strong attractant, increase speed, and beautiful body color.
The standard seedling stage is the basis and key to the overall breeding rhythm, and the important factor that traditionally restricts the standard seedling stage is the insufficient nutrient absorption of shrimp at the seedling stage, which leads to the failure of liver/intestinal development and low appetite, and the accumulation of residual bait will lead to bad water/smelly bottom, which will lead to the frequent emergence of diseases, and eventually lead to seedling drop and seedling discharge.
The launch of Miao Kangbao is targeted to solve this problem, Miao Kangbao high protein, strong attractant, good physique advantages, in the factory, high pool, small shed standard coarse different models have been fully verified product verification, the geographical range from Fujian, Jiangsu, Shandong, Tianjin, Liaoning stretching thousands of kilometers. Miao Kangbao's feeding strategy is: 1 stage completely replaces shrimp fillet feeding; The initial feeding amount is 15g/10,000/day; 20% in the first 20 days, 15% in the last 10 days, and three days in the transfer period.
In the middle and late stages of aquaculture, with the gradual maturity of the liver/intestinal organ development of shrimp, coupled with the increase in the frequency of aquaculture diseases in the middle and late stages, the cost of aquaculture. How to safely and efficiently improve the long speed, shorten the cycle, and avoid risks is the key point in the middle and late stages of breeding. For the middle and late stages of breeding, "Shrimp Kangbao" + "Feng Shrimp Bao" double treasure strong attraction, increase speed, beautiful body color products, match the needs of the middle and late stages of breeding, so that farmers in the middle and late stages of breeding worry-free, waiting to sell shrimp to collect money.
Second, "Drink well"
The factory light shed aquaculture is affected by the external water conditions and breeding infrastructure, and the water exchange of different households, the number of water collection and discharge, the power of the oxygen machine, the salinity of the water source, etc. are not the same, and the rainy season in Shandong in 2024 will come early, and the high temperature and rainy days that last for 40 days from July to August will have a greater impact on the water quality of the factory light shed, and the vibrio outbreak caused by the unstable water quality, the breeding of pathogens at the bottom temperature, the rapid reproduction of algae and the toxicity of the algae water body, and the intestinal lesions caused by the hepatoenteric lesions. In view of the above problems, Shandong factory light shed should achieve high temperature and water stability, prevention and control of Vibrio bacteria, internal and external detoxification, and disease prevention and improvement at the level of water quality control in July and August.
The third "long and strong"
Factory farming is based on breeding planning, high-density, intensive farming, and wins quickly and big. Based on the growth rhythm of shrimp itself, the development of hepatopancreatic organs in the early stage is imperfect, so it is necessary to promote the development of hepatopancreas and strengthen the body's immunity. As mentioned above, in addition to choosing a high-protein, strong attractant, and beautiful body color feed, it is also necessary to "strengthen the body" of shrimp, which coincides with the arrival of the high temperature and rainy season in Shandong in July and August, and the continuous rainy days caused by changes in water temperature and groundwater salinity caused by shrimp stress molting, weakening of physique, and reduction of anti-stress ability. In response to this problem, the main line plan of shrimp "strengthening the body" was formulated, which were to protect the liver and strengthen the body to promote growth, calcium and mineral supplementation to promote hard shell, and strengthen the intestine and clear the arc to promote more investment.
To sum up, from the shrimp "eat well", "drink well", and "grow strong", it is the real sense of Rongchuan's "three treasures fast shrimp".
04 Conclusion
The factory shed summer stubble breeding has entered the middle stage, and the arrival of the high temperature and rainy season in Shandong, coupled with a large number of shrimp in the pond, in the low price market, only fight the long speed, fight the output, shorten the breeding cycle, so that the shrimp "eat well", "drink well", "grow strong", and at the same time do a good job in physical management and disease prevention and control, reduce the impact of weather changes on shrimp, and stabilize the growth rate of shrimp.
While doing a good job in breeding planning and management, it is reasonable to comb shrimp and reduce costs. Cheap feed, medicine can not bring the final cost savings, but will make breeding more difficult, many farmers often breed for more than 5 months, slow growth, more disease, low yield, although the input cost is reduced, but the success rate of breeding is also reduced. How can we talk about profits, and how can we talk about increasing efficiency? Therefore, the core of "reducing costs and increasing efficiency" is to do a good job in breeding management while doing a good job in reasonable breeding planning, ensuring survival rate, increasing yield, shortening the cycle, raising large specifications, and high prices, and finally high profits.
In the cold winter of the aquaculture industry in 2024, shrimp prices are sluggish, and only by surviving this dark period can we stand out from the crowd and have the last laugh!!
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