How snakes balance ecology
Most snakes are natural enemies of rodents, such as black browed snake, mouse snake, gray rat snake, pit viper, king snake, brown black snake, yellow ridge snake, brown gray snake, cobra, etc., all of which are mainly rodents.
In addition, some snakes feed exclusively on termites, which undoubtedly play a huge role in preventing termites and eliminating termites from destroying humans. Snakes of the genus Stonecephalus feed exclusively on agricultural pests slugs. The juvenile snakes of extreme northern viper and viper mainly prey on insects, while grassland viper can prey on a large number of insects in one summer, of which more than 90% are locusts endangering grassland animal husbandry.
It can be seen that many snakes play an incomparable important role in eliminating rodents and pests in forests, grasslands and agriculture. It can be said that snakes in maintaining ecological balance is obvious to all, contribution.
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Medicinal Value and Processing of Snakes
Snakes belong to vertebrate phylum, reptile, snake suborder animal. The distribution of snakes in tropical and subtropical regions is the most, temperate zone is the second, and cold zone is the least. There are more than 2500 species of snakes in the world, of which about 650 are venomous. There are more than 200 kinds of snakes in China, of which about 51 species are poisonous snakes, mainly distributed in the south and southwest provinces of the Yangtze River, especially in Guangdong, Guangxi, Hainan and other provinces and autonomous regions. The medicinal value of snakes is not limited to snake venom, other such as snake meat, snake gall, snake slough, snake skin and its internal organs have high medicinal value.
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Measures to prevent the occurrence of three-sleeping silkworms
At present, most silkworms reared in our province are four-dormant silkworms. Under normal green and feeding conditions, four-sleeping silkworms should sleep four times in a generation. However, if the rearing conditions are bad, the silkworms may sleep only three times in a generation, resulting in less mulberry consumption, smaller cocoon shape and lower yield. The reasons why silkworms sleep only three times are as follows: green under low temperature, dry and dark conditions of about 20 ℃, receiving light for more than 12 hours in a day, feeding mulberry leaves with tender or high protein content, and straight silkworm eggs without heating protection.
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