Before the oysters grow, the attached substrate is thoroughly cleaned, the old oysters are completely removed, and any organism attached between the trampolines is removed. The trampoline should not be too dense because the disease spreads slowly across the school distance. Oysters are harvest.......
Bristles and ticks: Swine fever often parasitizes in the pig's ears, the neck, under the abdomen and inside the limbs. Pigs are itchy, rubbing everywhere, causing rashes, purulent dermatitis, epilation and peeling, etc. Pigs are anemic due to severe infection. Swine fever is also an import.......
In order to obtain the good detection effect of the metal detector, it is just as important to choose the position for it as much as possible. Although metal detection systems are often considered when planning to install new production lines, metal detectors are a.......
How to manage high-yield radish in greenhouses? Harvesting sheds in greenhouses must first adopt artificial methods, add beneficial microorganisms to the soil, and spray new high-fat membranes to enhance the activity of microorganisms in the soil and improve the fertility of the soil. Becau.......
(1) Beef breeds and breeds Each breed and breed of cattle is formed under certain natural climate and socio-economic conditions. Therefore, all breeds have their own inherent genetic characteristics and certain economically favorable traits. Therefore, the quality of milk is relatively low. Bi.......
Bellow trees, Cephalanthus tetrandrus (Roxb.) Ridsd. et Bakh. f. Deciduous shrubs or small trees, 1-5 m tall; twigs nearly quadrangular prismate, pubescent, old branches cylindrical, brown, glabrous. Le.......
1. Green barley: flat round. The surface is black or reddish black, bright, the middle micro-uplift, there are kinds of umbilical at the side of the dimple. Seed coat thin and crisp. Odorless, tasteless.
Cross-section of rhizomatous stems of Hu Huanglian in Tibet: 1 row of cells in the epidermis, often absent from the epidermis of rougher rhizomes. The cork layer is a series or more than ten cork cells. Co.......
Suffering from hepatic cysts not only harms itself, affects the normal operation of the liver, but also merges with other internal organs, causing heart failure, vomiting, abdominal pain, indigestion and other symptoms, and brings a series of troubles and pains to the human body, so the li.......