The quality of ancestors' ancestors can be directly passed on to future generations.
Therefore, when selecting the species, it is necessary to carefully examine the production performance (body weight, meat production rate, fecundity, milk yield, etc.) and body appearance of th…
One, quicklime. It can not only eliminate a variety of harmful bacteria in aquaculture waters and cultured organisms, but it is also a very effective water conditioner and bottom modifier. It is particularly important for aquaculture of crustaceans. Regular use of quicklime in the aquacult…
Winter and spring pods are one of the main cornices in sunlight greenhouses, and die and shoots often appear in production. What caused the dead seedlings? What measures should be taken?
1. Fertilizer harm: First, use fertilizers that are not fully decomposed, and second, apply too…
In the investigation of sow production, the author found that the majority of rural sow specializing households do not pay attention to sanitary measures for postpartum sows and can easily cause postpartum metritis, mastitis, agalactia syndrome, postpartum fever, tetanus, and postpartum so…
Autumn is the most season for large livestock, and it is also the season when cattle, horses, donkeys and other large animals are most likely to abortion. Because under normal circumstances, large livestock are mated in the spring and have been pregnant for 6 to 7 months in the autumn. At …
1, calcium deficiency symptoms
The plants grew slowly, the growth points were malformed, the young leaf margins were chlorogenic, and the reticular veins of the leaves turned brown and showed rust-like leaves. Eggplant cultivation in soils grown for many years can cause calcium def…
The basic principle of pH electrode and dissolved oxygen electrode and its application in biological fermentation
The basic principle of the pH electrode:
The electrode used in pH measurement is also called the prima…
The greenhouses are planted in greenhouses. The high temperature and humidity conditions in the greenhouses are extremely conducive to the occurrence of various pests and diseases. Therefore, strengthening the comprehensive prevention and treatment of diseases is the key to realizing the h…
Poor preservation of grasses often causes mildew and spoilage, especially during the summer and autumn. When the grasshoppers encounter a lot of fungus, the center and bottom of the grasshoppers often grow a large number of fungi. When cattle eat this part of the forage, poisoning symptoms…
There are many chicken farmers in the countryside and they like to feed freshly purchased chicks with cooked egg yolk or milk powder. The reason is that the egg yolk and milk powder are nutritious. The chicken grows fast and grows strong. When feeding the chicken with egg yolk, it can avoi…