Determination of dosage of soft-shelled turtle
1. Determination of dosage of drugs for external use.
The main results are as follows: (1) the drug concentration (ppm) is determined according to the safe concentration of a certain drug and the lethal concentration of the drug to the pathogen.
(2) accurately measure the volume of turtle pond or determine the volume of bath water. The calculation method of water volume is: water volume (m ^ 3) = area (m ^ 2) × average water depth (m).
(3) calculate the dosage: the dosage (g) = the concentration of the required drug (ppm, g / m ^ 3) × the volume of water (m ^ 3) 2, and the determination of the dose given internally.
We commonly use the total amount of drugs (mg) and the addition rate of feed drugs (%) as the dosage indicators of oral administration, which are based on the standard dosage. The overall weight and feeding rate of soft-shelled turtles are determined.
(1) Standard dosage: refers to the number of milligrams (mg/kg) of drugs used per kilogram of body weight of soft-shelled turtles, and each drug sold in the market is marked. If you do not know the standard dosage of soft-shelled turtle, it can be calculated with reference to the human dosage and the water solubility of the drug. For example, the adult dosage of sulfonamides is generally 1 g / time, twice a day, with a body weight of 50 kg for adults. 0.04 g per kg body weight Considering the loss of the drug in water, the dosage was increased by 2.5 times (empirical number, generally 2-5 times), that is, the standard dosage per kilogram of soft-shelled turtle body weight was 0.1 g (0.2 g for the first doubling).
(2) the total weight of soft-shelled turtles in the pond (kg) = estimated weight of each soft-shelled turtle (kg) × the number of soft-shelled turtles, or calculated according to the total weight (kg) / feeding rate (%).
(3) feeding rate (%): refers to the number of kilograms of feed per 100 kg body weight of soft-shelled turtles, which is determined according to different culture stages of soft-shelled turtles.
(4) Drug addition rate (%): refers to the number of milligrams of drugs added to every 100 kg of feed. It is obtained from the following formula: standard dosage (mg / kg) × feeding rate (%).
(5) according to the above data, we can get the dose of internal administration from two aspects:
If ① can estimate the total body weight of soft-shelled turtle, then the total dose (mg) = standard dose × total body weight of soft-shelled turtle.
If the daily dose of ② is fixed and has a certain basis, then the total amount of drug administration (mg) = daily dose (kg) × drug addition rate. (this article has been viewed 491 times)
- Prev
Technical measures for releasing fish fry in winter
As the saying goes, "in spring, the fry has a plague, and in winter, the fry is three points longer." Practice has proved that the Winter Solstice to the Beginning of Spring is the best time to release fish species. There are three reasons: first, at this time, the fish species are strong, the scales are tight, and the adaptability is strong. Second, the water temperature is low, the activity of fish is weak, and the survival rate is high in the process of fishing and stocking. The third is to avoid the trouble of overwintering in the pond, so that the fish species can be evacuated and refined earlier, so as to promote the growth of early spring. 1. Transformation of fish ponds. Make use of winter leisure to transform fish ponds, small ponds into large ponds, dead ponds into living ponds, shallow ponds
- Next
Four happy fish rolls
[features] gorgeous color, delicate meat, delicious taste and beautiful shape. [raw material] 750 grams of flounder. 30 grams of fat and lean pork, 20 grams of yellow cake, 20 grams of dried mushrooms, 15 grams of ham and 15 grams of vegetables. 5 grams of refined salt, 15 grams of Shao wine, 15 grams of chopped onions, 3 grams of pepper noodles, 50 grams of starch, 10 grams of sesame oil, 100 grams of clear soup, 5 grams of cooked chicken oil. [production process] wash and split the flatfish into eight pieces 10 cm long and 2.6 cm wide
Related
- On the eggshell is a badge full of pride. British Poultry Egg Market and Consumer observation
- British study: 72% of Britons are willing to buy native eggs raised by insects
- Guidelines for friendly egg production revised the increase of space in chicken sheds can not be forced to change feathers and lay eggs.
- Risk of delay in customs clearance Australia suspends lobster exports to China
- Pig semen-the Vector of virus Transmission (4)
- Pig semen-the Vector of virus Transmission (3)
- Five common causes of difficult control of classical swine fever in clinic and their countermeasures
- Foot-and-mouth disease is the most effective way to prevent it!
- PED is the number one killer of piglets and has to be guarded against in autumn and winter.
- What is "yellow fat pig"? Have you ever heard the pig collector talk about "yellow fat pig"?