Microecological preparations have the function of supplementing, adjusting or maintaining the microecological balance in the intestinal tract of animals, promoting the intestinal absorption of the organism and improving the host's immune level. At the same time, they can also purify water quality, maintain the microecological balance of the culture environment, and prevent diseases; Medicinal and toxic side effects, long-lasting effects, no residue, green; antibiotics targeted, rapid efficacy. The three were used together and achieved good results in the broodstock rearing of Penaeus vannamei. First, the test material 1, the test use of drug probiotics: Bozhou State Matter Technology Institute production of "gushing hair dew", "Yi water." Drugs: The pure Chinese medicine preparation produced by the Shengzhou Wangsheng Institute of Materials Technology--Drug-drug-king. The “streptomycin†and “oxytetracycline†produced by the North China Pharmaceutical Factory. 2, broodstock: Zhanjiang local breeding of Penaeus vannamei broodstock. 3. Venue: Zhanjiang East Island ginseng shrimp plant. 4. Aquaculture water: seawater in the natural sea area of ​​the eastern island of Zhanjiang. 5, bait: the acquisition of the local sea catch wenyu and oysters. II. Holding of the first batch of South American white broodstock The first batch of broodstock held by the first batch of South American broodstock was placed on the nursery pond on November 10, 2006. During the holding period, the animals were fed early and late every day. 2 times, the amount of feeding was 5% of the body weight. The water was changed once a day, and the amount of water changed every day was 30cm-40cm. After the broodstock was raised in the nursery for 10 days, the food intake of the broodstock in the pond decreased significantly. Some broodstock floated on the water surface, red whitish, red-legged, bloated, individual skin had white spot symptoms, and had broodstock Death occurred. Before the treatment was taken, broodstock in the diseased pond died as high as 10%-15%. For the above phenomenon, the author adopted the following two treatment methods for comparative experiments: 1. Comprehensive treatment of the brooded broods. 1 Discharge the water in the pool to 30cm. For broodstock use Chinese medicine preparation 10ppm and streptomycin 2ppm medicinal bath for 30 minutes. Then the water level was increased to 1.5m and a medicinal bath was administered every 2 days. 2 The daily feeds are treated as follows 2 hours before feeding: 4% of traditional Chinese medicine preparation, 0.5% of streptomycin, 2% of vitamin C, 0.5% of biological attractant, mixed with additives, and then adhered to bait with seaweed powder On the other hand, baits are fed in the same way as normal baits. 3 The concentration of the probiotics in the pool water is kept at 5 ppm per day. After the above methods of treatment, the food intake was lower than normal after 3 days. The daily mortality rate dropped to 2%. After seven days, everything was normal. After that, the probiotics and baits were halved and continued feeding until the end of broodstock rearing. 2. Only use antibiotic treatment for broodstock that has already developed: Select a nursery pond for the onset of broodstock, 300 broodstocks in the pond, feed twice a day early or late, and feed 5% of the body weight. Sprinkle in the pool. Streptomycin or oxytetracycline 2ppm, after 7 days of treatment, the mortality rate was 11%, the treatment effect is not obvious. Third, the second batch of South American broodstock holdings 1. Preparation before catching broodstock ponds soaked with 100ppm bleach for 2 days, and then washed with 20ppm potassium permanganate, trachea, gas stone soaked disinfection. In the first 3 days after the broodstock was stocked, the pool was filtered into seawater with a water depth of 50 cm and sterilized with oxytetracycline (2 ppm) first. After 6 hours, the micro ecological preparation was applied at 3 ppm. 2, broodstock stocking situation
On December 1, 2006, 5000 broodstock were stocked and the average size was 32/kg, and the broodstock was raised at a density of 10/m2.3.Management status1 Change water once a day, each time changing water 30cm-40cm, The concentration of microecological preparations was kept at 5ppm, and microecological preparations were supplemented after changing the water. 2 Each morning and evening, each feeding 1 time, according to the 5% of broiler weight, according to the actual situation timely adjustment of the amount of food, 2 hours before feeding with traditional Chinese medicine preparation 4%, streptomycin 0.5%, vitamin C2%, Bio-stimulant 0.5% Several drugs were mixed evenly, then seaweed powder was applied to the bait and fed continuously for 3 days. Thereafter, 2% of the Chinese medicine preparation and 2ppm of the microecological preparation were added to the feed 2 hours before each feeding, and feeding was continued until the end of the raising period. 3 Once every 2 days, treat the broodstock medicinal bath 1 times, before changing the water, drain the pool water level to 30cm or so, and use 10ppm Chinese medicine preparation and 2ppm of streptomycin in the broodstock for 30 minutes. Then increase the water level in the pool to 1.5m. In order to further prove the effect of the experiment, the author separated 300 broodstock from the second batch as a control group. Three days before catching the broodstock, the pool was filtered into seawater, the water depth was 50cm, and it was disinfected with oxytetracycline 2ppm. Put 300 broodstock into a nursery pond for conservation. During the holding process, the broodstock changes water once a day, each time changing the water 30cm-40cm; changing the water every 2 days 1 times before changing the water, the broodstock is bathed with 2ppm streptomycin for 30 minutes; 2 shots are given every day. The amount of bait is 5% of body weight. After a 12-day holding period, broodstock began to show symptoms such as red beard and white spot, and death began in 15 days. IV. Test results Although the first batch of broodstock suffered from illness during the holding process, due to the correct treatment and timely treatment, no great losses were caused. After the second batch of broodstock was normalized after 20 days of storage, the first batch of conditions did not appear, while the control group showed the same symptoms as the first batch of broodstock. It can be seen from the experiment that the use of micro ecological preparations and Chinese herbal medicines in combination with antibiotics has a good therapeutic effect on the diseases that occur in the broodstock rearing of Penaeus vannamei, and the use of antibiotics alone does not achieve the therapeutic effect. The first and second batch of broodstock were sent to Tangshan on February 5, 2007. The broodstock were strong and strong. The average size was 24/kg, and the survival rate was 100%. V. Analysis of results 1. Application of microecological preparations to regulate water quality On the one hand, microecological agents degrade ammonia, nitrite, and other harmful substances in water, and inhibit the growth and reproduction of harmful bacteria; on the other hand, microecological agents can mediate the balance of intestinal flora. Enhance immunity and thereby increase resistance to disease. 2. Application of traditional Chinese medicine preparations and antibiotics in the treatment of shrimp diseases Pure Chinese medicine preparations are made by special processes—extraction processing, which are easy to dissolve, absorb, and combine with antibiotics to produce complementary effects. At the same time, they can alleviate the toxic side effects produced by antibiotics. The test results show that the use of microecological preparations, Chinese medicines, and antibiotics are both scientific and practical and worthy of popularization and application.
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On December 1, 2006, 5000 broodstock were stocked and the average size was 32/kg, and the broodstock was raised at a density of 10/m2.3.Management status1 Change water once a day, each time changing water 30cm-40cm, The concentration of microecological preparations was kept at 5ppm, and microecological preparations were supplemented after changing the water. 2 Each morning and evening, each feeding 1 time, according to the 5% of broiler weight, according to the actual situation timely adjustment of the amount of food, 2 hours before feeding with traditional Chinese medicine preparation 4%, streptomycin 0.5%, vitamin C2%, Bio-stimulant 0.5% Several drugs were mixed evenly, then seaweed powder was applied to the bait and fed continuously for 3 days. Thereafter, 2% of the Chinese medicine preparation and 2ppm of the microecological preparation were added to the feed 2 hours before each feeding, and feeding was continued until the end of the raising period. 3 Once every 2 days, treat the broodstock medicinal bath 1 times, before changing the water, drain the pool water level to 30cm or so, and use 10ppm Chinese medicine preparation and 2ppm of streptomycin in the broodstock for 30 minutes. Then increase the water level in the pool to 1.5m. In order to further prove the effect of the experiment, the author separated 300 broodstock from the second batch as a control group. Three days before catching the broodstock, the pool was filtered into seawater, the water depth was 50cm, and it was disinfected with oxytetracycline 2ppm. Put 300 broodstock into a nursery pond for conservation. During the holding process, the broodstock changes water once a day, each time changing the water 30cm-40cm; changing the water every 2 days 1 times before changing the water, the broodstock is bathed with 2ppm streptomycin for 30 minutes; 2 shots are given every day. The amount of bait is 5% of body weight. After a 12-day holding period, broodstock began to show symptoms such as red beard and white spot, and death began in 15 days. IV. Test results Although the first batch of broodstock suffered from illness during the holding process, due to the correct treatment and timely treatment, no great losses were caused. After the second batch of broodstock was normalized after 20 days of storage, the first batch of conditions did not appear, while the control group showed the same symptoms as the first batch of broodstock. It can be seen from the experiment that the use of micro ecological preparations and Chinese herbal medicines in combination with antibiotics has a good therapeutic effect on the diseases that occur in the broodstock rearing of Penaeus vannamei, and the use of antibiotics alone does not achieve the therapeutic effect. The first and second batch of broodstock were sent to Tangshan on February 5, 2007. The broodstock were strong and strong. The average size was 24/kg, and the survival rate was 100%. V. Analysis of results 1. Application of microecological preparations to regulate water quality On the one hand, microecological agents degrade ammonia, nitrite, and other harmful substances in water, and inhibit the growth and reproduction of harmful bacteria; on the other hand, microecological agents can mediate the balance of intestinal flora. Enhance immunity and thereby increase resistance to disease. 2. Application of traditional Chinese medicine preparations and antibiotics in the treatment of shrimp diseases Pure Chinese medicine preparations are made by special processes—extraction processing, which are easy to dissolve, absorb, and combine with antibiotics to produce complementary effects. At the same time, they can alleviate the toxic side effects produced by antibiotics. The test results show that the use of microecological preparations, Chinese medicines, and antibiotics are both scientific and practical and worthy of popularization and application.
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