Evaluation of heat stress of czech fleckvieh-simmental cows by sum of effective temperatures

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Evaluation of heat stress of czech fleckvieh-simmental cows by sum of effective temperatures

Popis výsledku v původním jazyce

This work is targeted on the evaluation of heat stress of Czech fleckvieh-simmental dairy cows by sum of effective temperatures (SET). The experiment for this work took place in summer 2017 on private farm Genagro Říčany. It lasted for three months. The sum of effective temperatures (SET) was calculated from temperatures collected for the whole duration of the experiment. The 114 cows in total was included to this experiment. They were divided to the four groups according to yield-over 25 kg of milk per day (A), 20-24.9 kg of milk per day (B) and less than 19.9 kg of milk per day (C). The fourth group included all cows. The heat stress of cows can be visible on the milk yield. Therefore, the yield and the SET was compared. The correlation between the SET over the 23 oC and a yield was found. The moderate negative correlation (r=-0.479) was found for the most producing group (over 25 kg of milk per day). The least producing group (less than 19.9 kg of milk per day) had almost non-existant negative relationship (r=-0.149). The overall correlation for all groups together was the highest of all (r= -0.520) This supports the previous statement of earlier works of the authors.

Název v anglickém jazyce

Evaluation of heat stress of czech fleckvieh-simmental cows by sum of effective temperatures

Popis výsledku anglicky

This work is targeted on the evaluation of heat stress of Czech fleckvieh-simmental dairy cows by sum of effective temperatures (SET). The experiment for this work took place in summer 2017 on private farm Genagro Říčany. It lasted for three months. The sum of effective temperatures (SET) was calculated from temperatures collected for the whole duration of the experiment. The 114 cows in total was included to this experiment. They were divided to the four groups according to yield-over 25 kg of milk per day (A), 20-24.9 kg of milk per day (B) and less than 19.9 kg of milk per day (C). The fourth group included all cows. The heat stress of cows can be visible on the milk yield. Therefore, the yield and the SET was compared. The correlation between the SET over the 23 oC and a yield was found. The moderate negative correlation (r=-0.479) was found for the most producing group (over 25 kg of milk per day). The least producing group (less than 19.9 kg of milk per day) had almost non-existant negative relationship (r=-0.149). The overall correlation for all groups together was the highest of all (r= -0.520) This supports the previous statement of earlier works of the authors.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

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

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

Animal Breeding 2018

ISBN

978-80-7509-538-1

ISSN

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e-ISSN

neuvedeno

Počet stran výsledku

8

Strana od-do

64-71

Název nakladatele

Mendelova univerzita v Brně

Místo vydání

Brno

Místo konání akce

Brno

Datum konání akce

7. 2. 2018

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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