INFLUENCE OF ACCOMMODATION CONDITIONS ON HYGIENIC AIR QUALITY IN THE SOW HOUSE

Abstract

U radu se opisuje krmačarnik u kojem se analiziraju osnovni pokazatelji mikroklime, koncentracija prašine, amonijaka te brojnost bakterija i gljivica u zraku nastambe. U vrijeme istraživanja u krmačarniku je bilo 150 krmača. Prema dobivenim rezultatima broj aerobnih mezofilnih bakterija kretao se od 9,20x104 do 2,25x105 CFU/m3 zraka, a broj gljivica od 8,12x103 do 1,25x104 CFU/m3 zraka. Koncentracija prašine kretala se od 3,7 do 5,8 mg/m3. Koncentracija mikroorganizama i prašine kretala se u skladu sa zabilježenima u literaturi. Najzastupljenije su bile gram pozitivne bakterije, a zatim gljivice i gram negativne bakterije. Stoga se može zaključiti da u suvremenim uvjetima smještaja s automatskim sustavom za regulaciju mikroklimatskih prilika u krmačarniku treba očekivati povoljnu mikrobiološku kakvoću zraka, čije vrijednosti ovise o gustoći populacije uz pridržavanje dozvoljenog broja životinja po jedinici smještajnog prostora.The paper describes a house for sow accommodation in which basic microclimate factors, dust concentration, ammonia concentration and number of bacteria and fungi in the air are analyzed. In the time of research here were 150 sows in the house. According to the obtained results the number of aerobic mesofilic bacteria was from 9.20x104 to 2.25x105 CFU/m3 of air, and the number of funghi from 8.12x103 to 1.25x104 CFU/m3 of air. Dust concentration was from 3.7 to 5.8 mg/m3. Most of the identified microorganisms were gram positive bacteria, then fungi and gram negative bacteria. Air concentrations of microorganisms and dust recorded in the sow house were according to the respective figures reported in the literature. Therefore it could be concluded that in modern accommodation conditions with automatic regulation of microclimate in the sows house, favorable microbiological air quality, could be expected whose values depend on population density and good management

    Similar works