What is the most suitable weight for snakes to breed?
Snakes, like other livestock, cannot be planted or raised in Taichung or too light. Breeding snakes must be in their youth, and the same species also have specific weight restrictions, in order to ensure the quality of snakes. Generally speaking, the weight size of snakes should be controlled: about 100g and 150g for small species, 150g and 350g for medium species and 250g and 700g for large species. Those that are too big or too small can not be included in the category of snakes.
- Prev
A preliminary report on the study of larch leaf wasp
The main results are as follows: 1 Distribution and harm the silk leaf wasp after Larix gmelinii is mainly distributed in Heilongjiang and Jilin provinces. It is a dangerous pest in the leaves of Larix gmelinii, the damage period is from June to September, and it mainly harms the 10 ~ 30-year-old larch. The insect spreads quickly and does serious harm. The occurrence area of the Hailin Forestry Bureau was 300mu in 1985, and the area of the third generation larvae reached 150000 mu in 1986, of which 67000 mu were seriously damaged, and the highest population density was 21000 plants.
- Next
There are nine ways for bees to prevent "summer decline".
The "summer decline" is generally caused by high temperature. in order to avoid and reduce the "summer decline", the key is to prevent the heat and cool down the bee colony and create a suitable microclimate for the bee colony. The specific measures are as follows: first, the over-summer beehive should be located under the big tree or in the bamboo garden, ventilated in a cool place to avoid direct sunlight. The box seats should sit north and face south. Second, build an Arbor and cover straw on the beehive, plant pumpkin, lentils, towel gourd and other crops to climb the shed to increase the shade layer. Each beehive is covered with a water-soaked sponge between the secondary cover and the large cover.
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"?