Influence of cowsheds insulation on indicators of microclimate in the winter period
DOI:
https://doi.org/10.32636/01308521.2021-(70)-2-13Keywords:
dairy cows, cold weather, wind speed, air temperature, prefabricated premisesAbstract
The aim of our research was to study the influence of warming elements of easily assembled cowsheds on environmental wind speed, air movement, temperature and wind-chill temperature index in prefabricated rooms of different configurations and insulation systems in winter. One of the main factors in improving the comfort of cows in different types of premises is the creation of such microclimate indicators that would best meet the biological needs of dairy cows, depending on the season and productivity. The speed of air movement in the livestock room is also important and affects the body of animals and humans. At low temperatures in winter, a significant speed of air movement causes hypothermia of animals. High indoor wind speeds can indicate miscalculations when choosing a farm location. The research was conducted in the central Forest-Steppe of Ukraine (Bila Tserkva district, Kyiv region) in three farms with loose housing of cows: option I – keeping in a prefabricated room without insulation elements; option II – in an easy-to-assemble room on a deep straw litter; option III – in easy-to-assemble room with elements of curtain insulation (polycarbonate glass) in the period from 1.12.2020 to 28.02.2021. The territory of central Ukraine is in the temperate zone. The climate is temperate continental with four distinct seasons. The average annual air temperature (for the last 30 years) is +8.9 °С. The results of research show that the use of insulation elements for side curtains can extend for 13 days the permissible norms of wind speed indoors and more effectively protect from the environment during different periods of wind speed. It can also reduce wind speed indoors by 11.68‒21.74 % compared to the prefabricated boxing room and deep litter without warming elements. In addition, during the period of the lowest temperatures of the environment (-9.1 °С), the average daily temperature in the room without insulation elements dropped to -4.5 °С, which is 1.2 and 2.4 °С lower than in rooms with deep bedding and with insulation elements, respectively. For all categories of environmental wind speed, the highest values of the wind-chill temperature index were observed in an easy-to-assemble room with insulation elements.
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Copyright (c) 2021 О. О. БОРЩ, С. Ю. РУБАН, О. В. БОРЩ (Автор)
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