Annual dynamics of microclimate parameters of farrowing room in pigsty using two different ventilation systems
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Kuupäev
2022
Kättesaadav alates
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Estonian Academic Agricultural Society
Abstrakt
The study aimed to investigate the valve and geothermal
microclimate systems' impact on microclimate indicators in farrowing
rooms. In farrowing rooms, where the valve type of ventilation was
installed, the temperature in the farrowing room in summer and autumn
exceeded the norm by 3.90 and 1.60 °C, respectively. The amplitude of
the average values of the annual temperature dynamics at all these
measurement points was higher at using valve-type ventilation relative to
geothermal, which provided a constant temperature during the year.
Humidity during all seasons of the year was optimal with the use of both
microclimate systems, but in summer and autumn, it was probably higher
during using geothermal ventilation. The content of carbon dioxide
reached its highest values in the autumn months with the use of both
systems to create a microclimate, but without exceeding the norm. At the
same time, its content was probably higher in the summer months in the
room for keeping pregnant sows with the geothermal type of ventilation
by 400 ppm or 50% (P <0.01). The ammonia content tended to increase in
the autumn months in both farrowing rooms, but reached its highest values
in the fall, remaining, however, within normal limits. The hydrogen sulfide
content did not exceed the optimal values for both farrowing rooms during
all seasons without a statistically significant difference between different
types of ventilation. In the farrowing rooms where the geothermal
ventilation system was used, the highest H2S content was in the winter
months, amounting to 3.59 ppm, which is 0.96 ppm or 26.81% (P <0.001)
higher than in spring, 0.83 ppm or 23.29% (P <0.001) higher than in
summer and 0.26 ppm or 7.44% (P <0.05) higher than in spring.
Kirjeldus
Saabunud / Received 21.04.2022 ; Aktsepteeritud / Accepted 14.07.2022 ; Avaldatud veebis / Published online 14.07.2022 ; Vastutav autor / Corresponding author: Olekasndr Mykhalko ; snau.cz@ukr.net
Märksõnad
sow, piglet, type of ventilation, den temperature, humidity, gas composition, season, articles