By 2020, with the increase of large-scale pig farms and free-range breeding households, the number of breeding sows and live pigs in china will exc...
Ngo-2020, ngokwanda kwamapulazi amakhulu wezingulube kanye nemindeni yokuzalanisa uhla lwamahhala, inani lokuzala okuhlwanyelayo nezingulube eziphilayo e-china lizokhipha ...