1. Temperature. Temperature is the primary condition for embryonic development.鹌鹑 Like ...

Biological pathogenic factors include viruses, bacteria, and mycoplasma. Viral factors: There are...

This paper describes an improved immersion vertical plate electrophoresis tank with a cooling devic...

Symptoms are also known as tobacco bursitis and tobacco vein spot virus disease. Due to the differ...

Detail one: Ventilation should be carried out in several stages In the current greenhouse, the ni...

In rural cattle-raising households, once the roughage of bran, soybean meal, peas, etc. is insuffi...

Conceptual diarrhea means that the number of defecation is increased more than normal, and the fae...

Small gasoline engines, the 1E40F and 1E45F models, are widely used in rural areas. Due to the lac...

In recent years, E. coli disease has been widespread in many chicken farms, and the incidence and ...

In recent years, the meat duck breeding area has developed rapidly and has various organizational ...

In recent years, pigs have developed cleft-foot disease on some large-scale farms every autumn. Th...

First, waterlogging yellow seedlings. Low-lying terrain, poor drainage, and high groundwater leve...