In the process of breeding soft-shelled turtles, solving the source of feed is a very troublesome problem for farmers. So, how can we not only allow the soft-shelled turtle to eat enough and eat well, but also reduce the cost of raising and raise the economic benefits of breeding? The experience of the leading museum of amphibians and reptiles in Haining City, Zhejiang Province, is described as follows:
1. Feeding. You can use the house side of the wetlands to raise quail or oysters to produce feed; can also use rice fields, drains, eradicate weeds, spring collection of astragalus, loach seedlings were placed, often feeding appropriate amounts of bran, bran, fish meal, etc., autumn is a soft-shelled turtle During the food period, you can gather and feed.
2. Trapping. Black light traps are used, and in the summer and fall season, a black light lamp is suspended 20 centimeters above the surface of the turtle pond. Night-flying insects can be used as fodder; during the growth period of rice seedlings, “lighting the moth†can also be used. Methods, a few moths can be caught every night, collected and fed again. The method is: use water-filled pots, first install some water, and then set a kerosene lamp in the center of the pot to ignite. Using insect moths to attract light The traits are used to kill them. The insect moth will come to see the light at night and the lights must fall into the water and be collected early in the morning.
3. Fishing. Use rake nets and other tools to feed the snails from the ditches, ponds, reservoirs, rice fields (to be crushed) and small fish and shrimp.
4. Internal organs. Pigs, sheep, and chickens were collected for visceral material and blood, washed and chopped and fed.
5. Preparation. Available flour 30%, wheat bran 30%, corn flour 20%, rice 15%, fish meal 5%, made into pellets and then fed.
Two methods should be taken into consideration when using the above method: First, the amount of feed should be appropriate, and the daily dosage should be 14% to 20% of the total number of turtles, which should be fed 3 times and eaten within 2 hours after feeding to prevent excess rot from contaminating the water quality. Frequently change the water; the second is to mix some sulfa drugs in the feed every 15 days to prevent swollen neck and hemorrhage.
Face recognition is a kind of biometric identification technology based on facial feature information. Using a camera or camera to collect images or video streams containing faces, and automatically detect and track faces in the image, and then carry out face recognition on the detected face of a series of related technologies, usually called portrait recognition, face recognition.
Face recognition system mainly consists of four parts, which are: face image acquisition and detection, face image pretreatment, face image feature extraction and matching and recognition.
Face recognition is mainly used for identity recognition. Due to the rapid popularization of video surveillance, many video surveillance applications urgently need a kind of fast identification technology under the condition of long distance and users' uncooperation, in order to quickly confirm the identity of people from long distance and realize intelligent early warning. Face recognition technology is undoubtedly the best choice. Using fast face detection technology, we can find the face from the surveillance video image in real time, and compare it with the face database in real time, so as to achieve fast identity recognition.
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