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Influence of Heating Engineering Characteristics of Walling Constructions and Ventilation Schemes at Power Inputs in Buildings for Lactating Sows

Abstract

Researches determined that for pigpen heating power inputs cut it is necessary to warm exterior walls and floors of buildings for lactating sows till the level when coefficient of resistance to heat transmission for walls reaches 3,0, for floors - 3,7 m2oC/Watt. Ventilation system should work only by means of rarefaction created by vacuum fan. Air diversion should be done via lobby or gallery where it should be warmed by biological warmth of animals. Thanks to these measures the total spends of heat per 1 sow in winter period will be cut at 315,4 Watt/h. It is 32,2% lower than in standard breeding modeled on the project 819-216, where animals of control group were managed. Productiveness indexes and weanlings safety in reconstructed section were 8,5%-12,5% higher.

About the Authors

D. N. Khodosovsky
RUE "Scientific and Practical Center of the National Academy of Sciences of Belarus on Animal Husbandry"
Russian Federation


V. I. Bezzubov
RUE "Scientific and Practical Center of the National Academy of Sciences of Belarus on Animal Husbandry"
Russian Federation


V. A. Dvornik
RUE "Scientific and Practical Center of the National Academy of Sciences of Belarus on Animal Husbandry"
Russian Federation


A. N. Shatskaya
RUE "Scientific and Practical Center of the National Academy of Sciences of Belarus on Animal Husbandry"
Russian Federation


L. A. Kochetova
RUE "Scientific and Practical Center of the National Academy of Sciences of Belarus on Animal Husbandry"
Russian Federation


I. I. Perashvili
RUE "Scientific and Practical Center of the National Academy of Sciences of Belarus on Animal Husbandry"
Russian Federation


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Review

For citations:


Khodosovsky D.N., Bezzubov V.I., Dvornik V.A., Shatskaya A.N., Kochetova L.A., Perashvili I.I. Influence of Heating Engineering Characteristics of Walling Constructions and Ventilation Schemes at Power Inputs in Buildings for Lactating Sows. Zootechnical Science of Belarus. 2007;42:477-483. (In Russ.)

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ISSN 0134-9732 (Print)