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Classification of pig breeds and types
China's geographical conditions and ecological environment are diverse and complex, coupled with a long history of pig breeding, under the careful cultivation of the working people, many excellent local breeds have been formed, and their number has reached more than 100. In the 1980s, appropriate integration was carried out to determine the local breeds of China.
2020-11-27 pig breed and type division china geography condition -
Introduction of excellent varieties of Pleurotus ostreatus
According to the different temperature requirements in the period of fruiting body differentiation, Pleurotus ostreatus was divided into four groups, namely, low temperature type, medium temperature type, high temperature type and wide temperature type. In low temperature type, the optimum temperature for fruiting body differentiation was 10-15 ℃, such as Pleurotus ostreatus, Pleurotus ostreatus, Jingzhou No. 1, Suping 48, 4011. In the medium temperature type, the optimum temperature for fruiting body differentiation was 16-22 ℃, such as Pleurotus ostreatus and Pleurotus ostreatus. In high temperature type, the optimum temperature for fruiting body differentiation was 22 ~ 26 ℃, such as Pleurotus ostreatus, Pleurotus ostreatus, Suping 1.
2019-01-16 -
Raise sheep scientifically
Whether the breeding of adult sheep is reasonable or not plays a decisive role in the body structure and the speed of growth and development. Improper feeding can lead to overweight, thin or hindered growth and development of sheep at a certain stage, such as long legs, short body, vertical abdomen and so on. Breeding sheep concentrate supplement formula roughage type high quality hay type corn silage type dry corn straw type (%) corn 60.0058.5058.50 wheat bran 15
2019-01-16 -
What blood type is most popular with mosquitoes?
What blood type is most popular with mosquitoes?
2018-07-03 -
Type 4 allergy can increase pulmonary capillary permeability.
Allergy and hypersensitivity have the same meaning, that is, allergy, which means that the autoimmune system is too sensitive to pollen, animal fur, smoke and dust, and causes damage to the body. This allergic reaction is called anaphylaxis package.
2018-07-10 -
What are the latest varieties of Flammulina velutipes?
The types of artificially cultivated Flammulina velutipes can be divided into early type and late type according to the speed of mushroom emergence, low temperature type and high temperature type according to the temperature of occurrence, and can be divided into fine type (many stalks) and coarse type (few stalks) according to the number of fruiting bodies.
2020-11-10 The latest Flammulina velutipes varieties which artificial cultivated -
How to make stone-attached stump bonsai? It's like popping out of a crack in a stone.
With the development of technology, people pay more and more attention to home decoration, and there are more and more types and patterns of decorations and bonsai, which have changed from expensive ornaments with high performance and price to low-cost high-end ornaments made by themselves. Today.
2018-05-07 -
Breeding of white raccoon dog
White raccoon dogs and their characteristics raccoon dogs in nature have always been bluish brown, this common color type is genetically called the wild type. In 1974, Harbin Zoo in Heilongjiang Province acquired a rare male white raccoon dog (eyes and kisses are light pink). In 1980, yellowish brown or light blue eyes were found in the raccoon dog population of three northeastern provinces, kissing black white raccoon dog or white raccoon dog. These special color types, which are different from the wild type, are called mutants. The Special products Research Institute of the Chinese Academy of Agricultural Sciences uses these precious white raccoon dog mutation genes.
2019-01-16 -
White Raccoon Dog and Breeding of White Raccoon Dog
White raccoon dogs and their characteristics Raccoon dogs in nature have always been blue-brown, this common color type is genetically called wild type. In 1974, Harbin Zoo in Heilongjiang Province acquired a rare male raccoon dog (eyes and snout are light pink). In 1980, white raccoon dog or white raccoon dog with yellow brown or light blue eyes and black snout was successively found in the domestic raccoon dog population in three provinces of Northeast China. These special color types different from wild type fur color were called mutant types. Institute of Specialty of Chinese Academy of Agricultural Sciences
2019-01-15 -
Diagnosis and prevention of porcine erysipelas
First, popular characteristics. The disease mostly occurs in 2-6-month-old shelf pigs. Diseased pigs and infected pigs are the main sources of infection of the disease. The main route of infection is the digestive tract, and it can also be transmitted through skin wounds, or by blood-sucking insects such as mosquitoes and flies. The disease can occur all the year round. Second, symptoms and pathological changes. The disease can be divided into acute type, subacute type and chronic type. Acute type: that is, septic type, the body temperature of diseased pigs suddenly rises to more than 42 ℃, does not eat, gait is unstable and even cannot afford to lie on the ground. Conjunctival congestion, bright eyes. Chest,
2019-01-16 -
The seven types of yoga remove toxins from the body and make the skin shiny and elastic.
First, stand with your feet greatly apart, put your hands on your hips, inhale and open the chest, exhale and bend the trunk of the body forward, first let the palms hit the ground, then bend the elbow joints to the ground, and finally land on the head and keep your knees straight. Keep it three to five.
2018-05-14 -
What are the varieties of Flammulina velutipes?
What are the varieties of Flammulina velutipes?
2018-07-05 -
Control methods of Snail of the same Type of Flower Pest
Control methods of Snail of the same Type of Flower Pest
2020-03-11 -
There are four advantages of dandelion soaking in water, often drinking to strengthen the body, but there are four types of people who can't drink it.
Many people know that dandelion is a kind of edible wild vegetable, and in a year, spring is the best season to eat wild vegetables, and in summer, dandelion is made into tea to drink in water. If you often drink dandelion tea in summer.
2018-05-14 -
The growth cycle of goats
The growth cycle of goats is usually 6 months to 1 year old. In addition, goat production has the characteristics of high reproduction rate, strong adaptability and easy management, so it has been widely raised in the vast agricultural and pastoral areas of China. What kinds of goats do you have? Goats are divided into dairy type and meat according to their economic uses.
2020-11-11 Goat growth cycle goat general -
Breeding of white raccoon dog
White raccoon dogs and their characteristics raccoon dogs in nature have always been bluish brown, this common color type is genetically called the wild type. In 1974, Harbin Zoo in Heilongjiang Province acquired a rare male white raccoon dog (eyes and kisses are light pink). In 1980, yellowish brown or light blue eyes were found in the raccoon dog population of three northeastern provinces, kissing black white raccoon dog or white raccoon dog. These special color types, which are different from the wild type, are called mutants. The Special products Research Institute of the Chinese Academy of Agricultural Sciences makes use of these precious white raccoon dog mutations.
2019-01-16 -
Causes of slow growth of Pleurotus ostreatus stick and its solution
Causes of slow growth of Pleurotus ostreatus stick and its solution
2019-08-09 -
Brucellosis of bronchial septicemia in rabbits
[pathogen] Bordetella bronchial septicemia is an oval to rod-shaped pleomorphic microbacilli, gram-negative, often showing two-stage staining. [epidemic characteristics] the disease often occurs in the spring and autumn when the climate is changeable, and it is mainly infected through the respiratory tract. Bacteria are often parasitic in the respiratory tract of rabbits, so the resistance of the body is reduced due to sudden climate change, colds, parasitic diseases and other factors, such as dust, strong irritant gas stimulation, so that the mucous membrane of the upper respiratory tract is fragile, are easy to cause disease. Rhinitis type is often endemic.
2019-01-16 -
The cause of slow growth of Pleurotus ostreatus stick and its solution
In the cultivation of mushrooms, the stick is one of the means of inoculation, the use of different mushrooms is different, some farmers use corncobs for the cultivation of Pleurotus ostreatus, although the hyphae appear mushroom buds, but the fruiting body grows slowly, what should we do? Come together.
2020-11-10 Most Xinping mushroom stick growth slow cause and solve in -
Disease symptoms and treatment of Artemisia mandshurica
1. Morphological characteristics of the same type of snails belong to Stylommatophora (Bradybaenidae), also known as water buffalo. Adult shell volute flat spherical, solid and thick, the shell surface is yellowish brown or reddish brown, the shell mouth is horseshoe-shaped. Ovoid, milky white
2019-02-28