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How Aquaculture Eliminates the Nervous Sensitivity of Discus Fish
Keeping or breeding discus fish is a very interesting, very challenging and very rewarding hobby. But before reaching the realm of success, there are many...
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40 years of beekeeping with Italian bees: a brief discussion of the dispute between Chinese bees and Italian bees
The dispute between Chinese bees and Italian bees has, at some unknown point, become a focal point of argument among beekeepers and honey eaters, fought over bitterly, yet it seems to be a battle that will never have a win...
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Abnormal Behavior and Cause Analysis of Sick Discus Fish
For a generally sick discus fish, we can roughly understand its possible causes from abnormal behavior, appearance, and so on. Abnormal behaviors of sick fish and their causes: 1. The fish floats to the water surface, moves sluggishly, and looks listless -- oxygen deficiency, gill parasites, and bacterial infection. 2. Feeding rate decreases -- water quality may have deteriorated. 3. Gathers in one corner at the bottom of the tank, clamps its fins, etc. -- may have internal or external parasites, bacterial infection, etc. 4. Rubs against the tank wall or heater tube -- external parasite infection. 5
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Discussion on the Application of Interferon in the Treatment of Canine Infectious Hepatitis
Canine infectious hepatitis is an acute septicemic infectious disease caused by adenovirus. It is characterized by central necrosis of hepatic lobules, intranuclear inclusion bodies in hepatic parenchymal cells and cortical cells, and prolonged bleeding time. Canine infectious hepatitis is seriously harmful to dogs and causes significant economic losses to the dog breeding industry. The virus has considerable resistance; under low-temperature conditions, it can survive in soil for a long time, remaining pathogenic after 10-14 d, and can also survive for a relatively long time in kennels. Sick dogs and recovered virus-carrying dogs are the source of infection for this disease, and their blood, secretions and excreta
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Analysis and Discussion of the Effects of Forced Molting in Chickens
(1) Mortality rate during forced molting. Measures in a forced molting program such as fasting, water withdrawal and reduced lighting are a great stress to chickens, and flock mortality is a response that tests whether the amount of stress is appropriate. Generally, it is suitable to keep mortality during the implementation period of forced molting at no more than 3%, and by the end of the recovery period, to keep mortality within 5%. (2) Body weight loss rate. The decline in hen body weight indirectly reflects the state of fat consumption in the oviduct. Only when the body weight loss rate reaches 25%-30% can the fat deposited in the oviduct be basically exhausted, which is crucial for improving eggshell quality in the second laying period.
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Methods for determining drug dosage in soft-shelled turtle (Pelodiscus sinensis) farming
1. Determination of dosage for external-use drugs (1) Determine the drug concentration to be used (ppm) based on the safe concentration of a certain drug for soft-shelled turtles and the lethal concentration of the drug against pathogens. (2) Accurately measure the volume of the turtle pond or determine the volume of water for immersion bathing. Calculation method for water volume: water volume (m^3) = area (m^2) x average water depth (m). (3) Calculate the drug dosage: dosage (g) = concentration of the drug to be used (ppm, i.e., g/m^3) x water volume (m^3). 2. Internal
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