Guangling donkey
Produced in Guangling County, Shanxi Province. It can be divided into three types according to body size: large, medium and small. Those with a height of more than 1.30 meters are large, whose weight is about 260 kilograms, those with a body length of 1.35 meters and those with a height of less than 1.10 meters are small, those with a weight of about 138 kilograms and those with a body length of about 1.05 meters between large and small are medium-sized. Medium is the most common among the three categories. The color selection of male or female donkeys is very strict. Generally speaking, black eyebrows are regarded as colored, followed by Qinghua eyebrows, black aconitum and tung hair. The coat needs to be rough, and this kind of donkey is strong and strong. The average maximum pulling force of the Guangling male donkey is 258kg, which is equivalent to 84.6% of the body weight. The rubber wheeled cart has a load limit of 2889-469kg, carrying 163kg, and does not sweat when walking for one kilometer. Put both servitude and meat at the same time.
- Prev
Control of common diseases of silkworm, Bombyx mori
First, particle disease. Commonly known as flower sausage, it is a devastating infectious disease. 1. Etiology: caused by the spore infection of parasite. The route of transmission: one is embryo transmission, that is, the infected eggs laid by the diseased mother moth are passed to the offspring; the other is ingestion, that is, the silkworm eats the spores of microzoa and causes the disease. two。 Symptoms: population dysplasia, small silkworm body, poor appetite, sleepless silkworms, late rise or poor molting, and sometimes black-brown spots of different sizes on both sides of the ventral surface. It can be seen that the skin of the 5th instar diseased silkworm is torn.
- Next
Processing and storage of scorpion
In the process of artificial raising scorpion, timely collection, processing, storage and sale is an important link to make full use of space, save bait, speed up capital turnover and increase added value. This work should be carried out 7 days before the pregnant scorpion is born. The method is to retain the adult pregnant scorpion and high-quality seed scorpion, and to collect and process the rest of the mating male scorpion, the female scorpion that has given birth for more than 3 years, and some scorpions with stump, disease and emaciation as commercial scorpions. 1 processing method 1.1 put the scorpion in the cold before processing.
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"?