reduce antibiotic using in lived spermtosoide's nutrient fluid bio's pig st V.B.C farm ,កាត់ប្ថយអង់ទីប្យូទិចក្នុងល្បាយចិញ្ចឺមស្ពែមប្រភេទbio's pig នៅកសិដ្ឋានវី​.ប៊ី.ស៊ី SEANG SOMONTHA,សៀង សុម៉ុន្ថា VEM SEA 2017 B611 Or.1 phnom penh 2017 rua rua Text x;45p; https://drive.google.com/file/d/1JHvaGfDW1lyUdQm__svYit4GV_ALlteT/view?usp=sharing