Vliv stájového mikroklimatu na mléčnou produkci Holštýnských krav na 2. a 3. laktaci

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F08%3A00128823" target="_blank" >RIV/62156489:43210/08:00128823 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Effect of stable microclimate on milk production of Holstein cows on the 2nd and 3rd lactation

Popis výsledku v původním jazyce

Aim of this paper was to evaluate the effect of stable microclimate on milk production of thirty high-producing Holstein cows on 2nd or 3rd lactation. Cows were stabled together in same conditions in loose housing stable with bedding. As microclimatic factors were monitored air temperature -T (Centi degree), relative humidity -RH (%) and counted temperature-humidity index -THI. The experiment was carried out in July (2007) and the whole month was divided into three periods (P1 12 days; P2 11 days; P3 8days). There were recorded 7 summers and 1 tropical day in the stable. RH varied from 40 to 80%, and THI were 7 days above 72. The mean difference between milk yields (kg/d) was only +1.0 kg in cows on 3rd lactation compared to cows on 2nd lactation. Wehave found that when the temperature in stable exceeds 21 degree up to the 30 degree (P2) with RH from 45% to 69% and THI from 66 to 79, the effective temperature was above the comfort zone for high--producing dairy cows. This event was a

Název v anglickém jazyce

Effect of stable microclimate on milk production of Holstein cows on the 2nd and 3rd lactation

Popis výsledku anglicky

Aim of this paper was to evaluate the effect of stable microclimate on milk production of thirty high-producing Holstein cows on 2nd or 3rd lactation. Cows were stabled together in same conditions in loose housing stable with bedding. As microclimatic factors were monitored air temperature -T (Centi degree), relative humidity -RH (%) and counted temperature-humidity index -THI. The experiment was carried out in July (2007) and the whole month was divided into three periods (P1 12 days; P2 11 days; P3 8days). There were recorded 7 summers and 1 tropical day in the stable. RH varied from 40 to 80%, and THI were 7 days above 72. The mean difference between milk yields (kg/d) was only +1.0 kg in cows on 3rd lactation compared to cows on 2nd lactation. Wehave found that when the temperature in stable exceeds 21 degree up to the 30 degree (P2) with RH from 45% to 69% and THI from 66 to 79, the effective temperature was above the comfort zone for high--producing dairy cows. This event was a

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

GG - Chov hospodářských zvířat

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

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

Název periodika

Animal welfare, etológia és tartástechnológia

ISSN

1786-8440

e-ISSN

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Svazek periodika

4

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

HU - Maďarsko

Počet stran výsledku

7

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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