Naslov
Preliminary investigation on the influence of air quality on the increase of piglet losses in the farrowing unit

Autori
Pavičić, Željko ; Balenović, Tomislav ; Popović, Maja ; Valpotić, Ivica ; Tofant, Alenka ; Valpotić, Hrvoje ; Ekert Kabalin, Anamaria

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
XIII Intenational Congress in Animal Hygiene ISAH-2007 / Aland, A. - Tartu : Estonian University of Life Sciences, 2007, 279-283

ISBN
978-9949-426-29-4

Skup
Animal health, animal welfare and biosecurity

Mjesto i datum
Tartu, Estonija, 17.06.2007. - 21.06.2007

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
nursery; piglet losses; microbiological air quality; ammonium

Sažetak
The study investigated air quality in the farrowing unit with increased piglet losses (farrowing unit A) by comparasion of the obtained results of primary microclimatic values and total airborne microbe numbers to the results acquired from another farrowing unit (farrowing unit B) that operated in strictly controlled conditions with current technology and had optimal air quality. In each facility the investigation extended through two production cycles with full capacity of sows per turn. Farrowing unit A used outdated technology and was 270 m2 in size equipped with 40 pens, while farrowing unit B used current technology and was 370 m2 in size equipped with 60 farrowing pens. Seven air samplings were performed in every 28-day turn with the SAS 100TM (PBI International, Italy) air collector, and primary microclimatic conditiond were monitored with Testo and Drager (Germany) portable digital instruments. Air was sampled onto corresponding growth medium and the obtained results of microbe numbers were subject to statistical analysis. According to the acquired results a significantly larger number of individual microbe species was recorded in farrowing unit A in both production cycles in relation to farrowing unit B. Besides, inadequate exchange of air with increased ammonia concentration and relative humidity was observed in farrowing unit A. Outdated technology along with insufficient maintenance of ventilation equipment induces unsuitable microclimatic conditions and increased microbe numbers in the air of farrowing unit, which perhaps is in correlation with an increase in piglet losses. Unlike this, in farrowing units with current housing technology and optimal production results the total microbe numbers are expected to be below 10.000 CFU/m3 and 1.000 CFU/m3 of air for bacteria and fungi, respectively.

Izvorni jezik
Engleski

Znanstvena područja
Veterinarska medicina

POVEZANOST RADA