Exploration And Application Of New Methods For Making Neophocaena Phocaenoides Taxidermy And Bone Specimens

The neophocaena phocaenoides is a common small-sized toothed whale in the coastal areas of China and the middle and lower reaches of the Yangtze River.At this stage,it is already an endangered species.The protection of the neophocaena phocaenoides is imminent.After exploring the new method of making the bonefish specimens and stripping specimens,the specimens can be made.Leave detailed physical evidence for the popularization study.The previous neophocaena phocaenoides stripping specimens were made by a relatively old method,all of which were filled,and the skin treatment was also applied with toxic substances such as soaking in formaldehyde solution or arsenic to achieve antiseptic effect.Peeling specimens made by such methods,or postures are incorrect,or the preservation time is not long due to improper handling of the skin.There are many methods used in the preparation of bone specimens.Insect method,boiling method,caustic soda method,etc.are used to remove meat.Most of these methods show different degrees of bone damage or unclean bones on the bone surface.When the organic solvent is degreased,the degreasing time is too long,and the purchase of gasoline,acetone,etc.is difficult,and the production cycle of the bone specimen is prolonged.The production of the neophocaena phocaenoides stripping specimen is first thinned with a peeling knife and the like,and then the skin is soaked in an acid solution,so that the skin is acidified and expanded,and the distance between the protein fibers is increased,which facilitates the tanning,Tanning in the skin agent makes an irreversible stable binding relationship between the skin agent and the protein fiber,thereby preventing skin spoilage.The skin treated by this method has a certain ductility and is convenient for the preparation of the specimen.The prosthesis is made of a foam of a certain hardness,supplemented with a polyurethane foaming agent.The anatomical sculpture technique is used to engrave the desired prosthesis,and then the finished suture is sutured on the prosthesis.The specimen is more vividly presented.The morphological characteristics of the neophocaena phocaenoides,the specimens are more realistic,the morphological structure is more scientific and rigorous,the management and preservation are more convenient,and the artistic value is also improved.The production of the neophocaena phocaenoides bone specimens,after the bone removal process is completed,the alkaline protease,the alkaline degreasing agent,and the water are mixed according to a certain ratio,and the water bath is heated until the soft tissue on the bone surface is cleaned,and the larger bones are punched.The bone marrow is washed away with water.The degreasing is firstly degreased with an alkaline degreaser,and then deep degreased with a mixture of methylal and acetone.This method can effectively shorten the degreasing time.Finally,it is bleached with hydrogen peroxide.After the bones are completely dried,tools such as iron wire are used.As a whole,the bone specimens made by this method are complete and clean,which is more conducive to the study of the bones of the neophocaena phocaenoides.Through the production of the neophocaena phocaenoides stripping specimen,the new method is used to treat the skin,and the prosthesis is made by using a relatively convenient new material,and the difficulty in the production process of the neophocaena phocaenoides specimen is more carefully understood.The production of the neophocaena phocaenoides bone specimen and the preparation of the pig bone specimen are made.Contrasting experiments,a more detailed understanding of the porcupine bone composition and some difficulties in the production process of the neophocaena phocaenoides bone specimens.Through the exploration of the production of neophocaena phocaenoides stripping specimens and bone specimens,a set of time-saving,labor-saving,reliable and environmentally friendly production techniques for neophocaena phocaenoides specimens was summarized,which improved the level of production technology and made the specimens more scientific,complete and long-term preservation.