Freeze-dried specimens of animals and plants

  Animal specimens can be frozen for later use. Taxidermy is skinned and tanned for later use. Many data measurements are made on the animal body. Using sawdust or shavings, hemp, etc., and galvanized iron wire to create a prosthesis based on the specimen's skull and leg bones is a traditional method that is still used today.

Freeze-dried specimens of animals and plants

  Another method is to reproduce the animal carcass in plaster, finally stroke a mold, and then make a polyurethane mold from polyester resin and fiberglass cloth, from the final pour. Molds can also be carved from clay. There are many foreign companies that produce molds of various specifications, glass eyeballs, and artificial teeth, jaws, tongues, or beaks of birds, and artificial legs can be used to make specimens.

  An increasingly popular trend is to freeze-dry animals such as reptiles, birds and small mammals such as cats, mice and certain types of dogs. Freeze-drying is expensive and time-consuming, equipment is expensive and requires a lot of maintenance, and large specimens may require 6 months of freeze-drying. While it is the technique of choice for pet taxidermy, freeze-dried animals can be vulnerable to carpet bugs later if not cared for.

  The characteristics of freeze-dried specimens of animals and plants: when the specimens are freeze-dried, animal feathers, fur, scales, etc. will hinder the escape of water vapor, and the fibrous tissues of animals and plants are usually not perpendicular to their outer surfaces, so their heat transfer performance The conditions for the escape of water vapor and water vapor are poor, so the drying rate is very low and less heat is required. Measures must be taken during freeze-drying to prevent excessive heat from melting the ice crystals. Secondly, the freeze-drying of specimens is all freeze-dried as a whole, and the thickness of each part of the specimen is different. In addition, the drying rate is low, so the drying cycle is long.

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