First of all, a thorough inspection of the room, plug loopholes, wiping the cracks, in order to prevent the cold wind blowing into the coop, to ensure safe winter rats. Secondly, prepare winter vegetables and hay. After harvesting, the winter dishes must be air-dried to prevent deterioration and ----more
Refrigeration working principle: The refrigeration cycle adopts an inverse card cycle, which consists of two isothermal processes and two adiabatic processes. The process is as follows: the refrigerant is adiabatically compressed to a higher pressure by the compressor, and the consumed work causes ----more
First, furazolidin is not suitable for drinking water: Adding 0.01 to 0.02% of Trimethoprim to the feed can prevent white psoriasis, poultry typhoid fever and E. coli disease. The treatment amount can be doubled, and the dosage should be used when used. Accurately calculate and stir evenly to prev ----more
A pH meter (also called a pH meter) is an instrument used to measure the pH of a solution. In this article, a detailed description of the acidity meter from the principles, grades and accuracy of the pH meter, use and maintenance, and the operation of the pH meter will give us a comprehensive and t ----more
Cotton is a crop that needs a large amount of fertilizer, but due to unreasonable fertilization, there has been a phenomenon that the yield of cotton does not increase with the increase of the amount of fertilizer, and at the same time, the investment for pest control increases with the amount of n ----more
Hare is a kind of special wild economic animal with both skin, wool and flesh. It eats various weeds, vegetables and leaves. The artificially domesticated hare changed some of the bad habits of timidity, fear of panic and rabbits, while maintaining the original game, and the average meat productio ----more
In the production of laying hens, chicken farmers pay more attention to feed compatibility, environmental temperature and humidity control, regular epidemic prevention, seasonal management, and lighting management, and often overlook the following issues. (1) The main reason for the timely deterr ----more