Species of pig parasites
The main parasites that harm pigs can be divided into the following three categories in terms of economy and degree of harm:
(1) The less harmful and ubiquitous parasites include Cysticercus suis, Strongyloides pigilis, Trichophylchus suis (Trichuris suis), Echinostomum suis, Ostomatode suis (Nododes suis), Ascaris suis (Spiropharyngostomus suis), Echinostomus suis (Megalorhinchus suis), Phthitis suis, Eimeria suis, etc.
(2) Serious and ubiquitous parasites include Fasciolaria zingiberensis, Ascaris suis, Opisthronium suis (pulmonary filariasis), Coronecercus suis (kidney worm), Scabies suis (epilepsy), etc.
(3) Microstomata daidzei, Schistosoma japonicum, Metonychiasis sinensis, Fasciola hepatica, Cysticercus cellulosae, Schizocephalid, Trichinella spiralis, Sporospora hyocolis, Demodex suis, etc. are occasionally found.
In general, the above situation is not necessarily completely reasonable, such as piglet strongyloides, in the breeding management is extremely extensive areas, its harm is quite serious and widespread.
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Important role of protein in pig and its additive amount
Protein is the basis of all life and the main component of pig body. According to the research, the protein content in pig body is 15%. It is the basic raw material for all tissues and cells such as muscle, bone, nerve, connective tissue, skin and blood of pig body. It is the main component of skin, hair, meat, milk, bone and hoof, and also an important raw material for bioactive substances such as enzymes, hormones, pigments and antibodies of pig body. When protein in daily diet is deficient, sow is easy to have abnormal sexual cycle, difficult pregnancy, few children, easy abortion and weak birth.
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Nandan Yao chicken
Origin (or distribution): produced in Nandan County, Guangxi. Main characteristics: it belongs to meat type chicken. Most chickens' main wing feathers, main tail feathers, shins and beak are black, aileron feathers are black and yellow, single crown, iridescent brown and yellow, meat lobes and earlobes are red. The feathers of Roosters are more golden, brown, red, yellow and black, while hens are more black, black and white, and khaki. Weight of adult chicken: 3537 grams for males and 2262 grams for females. Slaughtering rate of adult chickens: semi-clean, male 82.5%, female 90.0%; fully clean, male 77.0%
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