[Artificial air ionization for the purpose of increasing laying hen productivity].
D000390:Air Ionization; D000822:Animal Husbandry / Q000379:methods*; D000818:Animals; D002645:Chickens / Q000502:physiology*; D005260:Female; D013997:Time Factors
Iskusstvennaia aéroionizatsiia v tseliakh povysheniia produktivnosti kur-nesushek.