Pig Breeding 2023 №2(80)

MULTISEL-FREACTANCE ESTIMATION OF MICROCLIMATE OF HOGCOTES FOR DIFFERENT PARATYPICAL FACTORS

UDC: 636.4:631.223:628.8

DOI: 10.37143/2786-7730-2023-2(80)06

REFERENCIS АРА style: N bylytsia M. S, Boiko O. V., Gavrish, O. M., & SotnIchenko, Yu. M. (2023). Multyparametrychna otsinka mikroklimatu svynarnykiv za riznykh paratypovykh faktoriv [Multiparametric assessment of the microclimate of pig premises based on various paratypic factors]. Svynarstvo i ahropromyslove vyrobnytstvo [Pig Breeding and Agroindustrial Production]. Poltava, 2(80), 87-101 [in Ukrainain]. doi: 10.37143/2786-7730-2023-2(80)06

M. S. Nebelytsia, candidate of agricultural sciences, head of the department of animal husbandry and production of ecologically clean products
ORCID:https://orcid.org/0000-0001-5509-8787
E-mail:nebilitsia@ukr.net
Cherkasy Research Station of Bioresources NAAS Pasterivska Str., 76, Cherkasy, Ukraine 18036
O. V. Boiko, candidate of agricultural sciences, director of the station,
ORCID:https://orcid.org/0000-0002-3917-5583
E-mail:aleksboy18@meta.ua
Cherkasy Research Station of Bioresources NAAS Pasterivska Str., 76, Cherkasy, Ukraine 18036
O. M. Gavrish, candidate of agricultural sciences, head of the department of animal husbandry and production of ecologically clean products
ORCID:https://orcid.org/0000-0001-5509-8787
E-mail:nebilitsia@ukr.net
Cherkasy Research Station of Bioresources NAAS Pasterivska Str., 76, Cherkasy, Ukraine 18036
Yu. M. SotnIchenko candidate of agricultural sciences, director of the station,
ORCID:https://orcid.org/0000-0002-3917-5583
E-mail:aleksboy18@meta.ua
Cherkasy Research Station of Bioresources NAAS Pasterivska Str., 76, Cherkasy, Ukraine 18036

Abstract

The purpose o f the research was to evaluate the potential o f using two times removal o f manure per day from the premises o f pig houses under natural and mechanical ventilation systems, fo r a comparative assessment o f the main parameters o f the microclimate The relevance o f the work is determined by the implementation o f the method o f multi-parametric assessment o f the microclimate o f piggery premises by the method o f continuous automatic registration. Methods. Analytical, zootechnical, physical and biometric research methods are applied. Results. Microclimate parameters were measured 24 hours a day in two pig breeding premises o f the Cherkasy State Agricultural Research Station o f National Science Center "Institute o f Agriculture NAAS" (pigs o f the red and white-belted breed) under natural and mechanical ventilation systems and oneand two-time removal o f manure. It was established that the parameters o f the microclimate o f pig farm s with natural and mechanical supply-exhaust ventilation systems were close to the normative values during the periods o f the year. An exception is the air temperature index in the summer period in both rooms, which exceeded the maximum permissible normative value (21.0°С) fo r young animals in fattening, in particular: by 25,7 - 30,0 % in the room with the natural system and by 20,0 - 23,3 % in a room with a mechanical ventilation system. During the two-time removal o f manure during the day, in a room with natural ventilation, the concentration o f polluting gases CO2, NH3, CH4 and fine dust PM1-10 probably decreased by periods o f the year, respectively, by 2,2 - 19,7%, 10,6 - 57,7%, 12,8 - 25,5 % a n d 21,4 - 30,1 % fo r РМ1-10 - only in the winter-spring period). Similarly, in a p ig house with a mechanical ventilation system, the concentration o f CO2, NH3, CH4 and PM1-10 probably decreased by 3,2 - 20,3 %, 14,7 - 62,0 %, 3,3 - 21,7 % and 9,8 - 33,6 % (for РМ1-10 - only in winter, spring and summer periods). Therefore, the two-fold removal o f manure from pig houses is not only an effective measure to control the sources o f indoor air pollutants, but also a significant factor in reducing emissions o f pollutants into the environment by ventilation systems. Conclusions. Probable average and high influence o f the period o f the year on the variability o f air temperature, relative humidity, volume concentration o f carbon dioxide, ammonia, methane and mass concentration offine dust in the premises o f pig houses was established (by 93,2 %; 45,7; 57,0; 63,2, 75,4 % and 30,1 %, respectively). Also, a probable low influence o f the type o f ventilation on the variability o f the above indicators was determined (by 1,4 %; 6,6; 9,8; 18,6; 4,8 and 13,5 %, respectively) and a low, but also probable influence the frequency o f manure removal, on the variability o f air temperature, relative humidity, volume concentration o f carbon dioxide, ammonia, methane, and mass concentration o f fine dust in the premises o f pig houses (by 0,42 %; 0,02; 0,37; 0,52; 2,93 % a n d 3,3 % respectively).

Key words: method o f continuous automatic registration, multiparametric assessment o f microclimate, pollutants, piggery room, paratypic factor, seasonality

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