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Statements

Subject Item
n2:RIV%2F62156489%3A43210%2F08%3A00128823%21RIV09-MSM-43210___
rdf:type
n10:Vysledek skos:Concept
dcterms:description
Cílem této práce je zhodnotit vliv stájového mikroklimatu na mléčnou produkci 30 Holštýnských krav na 2.a 3. laktaci. Krávy byly ustájeny společně ve stejných podmínkách ve volné, stlané boxové stáji. Z mikroklimatických faktorů byly sledovány: teplota vzduchu (T), relativní vlhkost (RH) a index THI. Experiment probíhal v červenci 2007 ve třech obdobích (P1 12dní, P2 11dní, P3 8dní). 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 8 days). 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. We have 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 accompanied by th 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 8 days). 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. We have 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 accompanied by th
dcterms:title
Effect of stable microclimate on milk production of Holstein cows on the 2nd and 3rd lactation Effect of stable microclimate on milk production of Holstein cows on the 2nd and 3rd lactation Vliv stájového mikroklimatu na mléčnou produkci Holštýnských krav na 2. a 3. laktaci
skos:prefLabel
Vliv stájového mikroklimatu na mléčnou produkci Holštýnských krav na 2. a 3. laktaci Effect of stable microclimate on milk production of Holstein cows on the 2nd and 3rd lactation Effect of stable microclimate on milk production of Holstein cows on the 2nd and 3rd lactation
skos:notation
RIV/62156489:43210/08:00128823!RIV09-MSM-43210___
n3:aktivita
n18:Z
n3:aktivity
Z(MSM6215648905)
n3:cisloPeriodika
2
n3:dodaniDat
n13:2009
n3:domaciTvurceVysledku
n5:6527655 n5:2997371 n5:3310116 n5:9361537
n3:druhVysledku
n16:J
n3:duvernostUdaju
n4:S
n3:entitaPredkladatele
n17:predkladatel
n3:idSjednocenehoVysledku
365256
n3:idVysledku
RIV/62156489:43210/08:00128823
n3:jazykVysledku
n15:eng
n3:klicovaSlova
THI; heat stress; relative humidity; temperature; stable; milk production; cows
n3:klicoveSlovo
n12:heat%20stress n12:cows n12:temperature n12:relative%20humidity n12:milk%20production n12:stable n12:THI
n3:kodStatuVydavatele
HU - Maďarsko
n3:kontrolniKodProRIV
[F368F50F831C]
n3:nazevZdroje
Animal welfare, etológia és tartástechnológia
n3:obor
n6:GG
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
4
n3:rokUplatneniVysledku
n13:2008
n3:svazekPeriodika
4
n3:tvurceVysledku
Chládek, Gustav Skýpala, Martin Walterová, Lucie Falta, Daniel
n3:zamer
n8:MSM6215648905
s:issn
1786-8440
s:numberOfPages
7
n14:organizacniJednotka
43210