Choosing healthy chicks can be done using the "one look, two listen, three touch" methods.
A look at the chicken's state of mind, feathers and tidy degree, whether the prosthesis, legs, toes are correct, the eyes are bright, whether the anus has white feces, umbilical hole healing is good. Healthy chicks have bright eyes, clean anus, clean and light feathers, and a good mental state.
The sound of young chicks was heard, and the weak youngsters had a hoarse voice or fainted; the sound of healthy chicks was loud and crisp.
The third touch is to hold the chicks in their hands, touch the development status of the skeleton, the size of the abdomen and the degree of looseness. Healthy chicks are heavier, full-feeling, flexible, and struggling.
A polymer whose molecular backbone contains aliphatic esters. In other words, the parent nucleus R of the dihydroxyl compound HO -- R -- OH is polycarbonate of aliphatic group (CH2) M, (CH2)O(CH2), -- CH2 -- C(CH3)2 -- CH2 -- etc. It is characterized by low melting temperature, mostly below 60℃, and narrow melting range, greater solubility, low mechanical strength, hydrophilic, poor thermal stability, low glass transition temperature. Most aliphatic polycarbonate have low molecular weight and are mostly viscous liquid at room temperature or microcrystalline substance at low melting temperature. It can be prepared from aliphatic dihydroxyl compounds with dicarbonate or photogasification. Most of them have little industrial value, so their application is very limited.
Aliphatic Polycarbonates Apc,Rigid Bioplastics Aliphatic Polycarbonates Apc,Adhesives Aliphatic Polycarbonates Apc,Binders Aliphatic Polycarbonates Apc
Xingbang High Molecular Materials Co., Ltd. , https://www.chemicaladditive.com