grouper
Case 1 (Shentailai)
1. Case details
Background information: Shandong Dongying Zhonglang 15000 tail~400g specification grouper
Case process: Grouper was cultured in a cement pond system, and a new outbreak of Viral nervous necrosis occurred. About 100+fish died every day. Samples of diseased fish were taken for testing, and the results were positive for Viral nervous necrosis, negative for Iridovirids virus, and no bacterial infection.
2. Handling plan
Feed 3 packs of Shentailai mixed feed once a day for 5 consecutive days.
3. Effect feedback
After continuous mixing and feeding of Shentailai for 5 days, the number of deaths decreased to 0 on the 14th day after starting to use Shentailai, and the Viral nervous necrosis disease was effectively controlled. Please refer to the following figure for specific data
Recommended Posts
-
The diseased sea bass (with a CT value of 30.18 for frog rainbow virus detection) was evenly divided into two groups with consistent feeding conditions. The experimental group was fed with feed wrapped in rainbow virus binding protein, one meal per day for 5 consecutive days, while the control group was fed with the same dose of regular feed. After continuous feeding for 5 days, observe for another 7 days and record the survival number of two groups of experimental fish. After 7 days of observation, take 5 fish from each group for virus detection. The test results showed that the experimental group successfully turned negative for frog rainbow virus disease (CT value ≥ 45 for frog rainbow virus detection), while the control group remained positive (CT value of 31.668 for frog rainbow virus detection); The average survival rate of the experimental group was 65%, while the c... -
At a bullfrog farm in Chenghai, two adjacent frog ponds with similar sizes were selected, one as the control group and the other as the experimental group. Two frog ponds with the same number of frogs (both 10W) were used, and the experimental group and the control group were kept under the same breeding conditions. The experimental group used frog tilapia (take 2 packets of frog tilapia and 600ml of vegetable oil, mix thoroughly, and then mix the mixed frog tilapia with 20kg of feed evenly for feeding frogs). Feed once a day for 3 consecutive days; After an interval of one month, feed again for three consecutive days, with one meal per day, while keeping other routine health medications consistent with the control group.
-
The feed mandarin fish in the farm died continuously, with 20-60 deaths per day. Disease samples were taken multiple times for testing, and the test results showed strong positive for splenic and renal necrosis virus nucleic acid (CT value of about 10) and negative for frog rainbow virus nucleic acid, confirming that the feed mandarin fish were infected with splenic and renal necrosis virus disease.
