Analysis of barn cooling fan setting influence on the dairy cows lying behavior

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F19%3A43915151" target="_blank" >RIV/62156489:43210/19:43915151 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Analysis of barn cooling fan setting influence on the dairy cows lying behavior

Original language description

This work is targeted on the influence of switching temperature of barn fans on the dairy cows behavior. The 128 cows of Czech fleckvieh-simmental cattle in total were involved to this experiment. The experiment took place on private farm in Pyšel and lasted from July to September of 2017. The data for this paper were collected by observation of subject inside the barn. The observation determined the overall time of lying in stable. According to the time which cows lied, the welfare can be evaluated. The switching temperature of fans was set to 24 oC and 26 oC. according to the switching temperature, two groups of cows were observated. Later, the differences between these two temperatures was established and corellated to the temperature itself. The weak relationships were discovered between amount of hours spend lying and mean temperature (r = -0.017 for 24 oC; 0.006 for 26 oC; P = 0.05). These results suggest, that the switching temperature of the fan had very little effect on the amount of hours, that cows spend lying down. Although, a negative relationship for switching temperature 24 oC can be observed. This can mean, that when the fan switching temperature is set to 24 oC, mean temperature has larger impact on the behavior and welfare. Higher fan switching temperature (26 oC) may have lower impact, because of the higher level of heat stress already present in cattle. This could be supported by the fact, that cows in 26 oC group spend less hours lying down in average (0.434 hour) than the 24 oC group.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

40201 - Animal and dairy science; (Animal biotechnology to be 4.4)

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Animal Breeding 2019

ISBN

978-80-7509-641-8

ISSN

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e-ISSN

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Number of pages

7

Pages from-to

67-73

Publisher name

Mendelova univerzita v Brně

Place of publication

Brno

Event location

Brno

Event date

Feb 6, 2019

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

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