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Statements

Subject Item
n2:RIV%2F62156489%3A43210%2F14%3A00222973%21RIV15-MSM-43210___
rdf:type
n15:Vysledek skos:Concept
dcterms:description
The objective of this study was to determinate the effect of milking frequency on milk production of Holstein cows during winter and summer. Total number of cows was divided into two groups by milk yield. Almost 40 % of cows milked more than 25 kg of milk per day per cow so cows are milked twice during the morning. The other more than 60 % of dairy cows milked per day less than 25 kg of milk per day, and these cows are milked once during the morning. In summer and winter period were monitoring the average daily temperature in the barn (BAT) and the stable relative humidity (RH). The study lasted 177 days (data analyzed daily) in the summer (from 1 June 2013 to 31 August 2013) and in winter period (from 1 December 2013 to 23 February 2014). Data comes from University farm. The farm is situated in Žabčice (GPS49°0'51.786%22N, 16°36'14.809%22E). Based on the correlation of milk production data of Holstein breed was found with increasing BAT reduces average morning milk yield per twice milked cow on the second milking at 8.00 a.m. (r = -0.32, P < 0.01), total average morning milk yield per once milked cow (r = -0.23; P < 0.05) and total morning milk yield (r = -0.41, P < 0.001). In milk production data was observed that with decreasing RH in summer reduces average morning milk yield per twice milked cow on the second milking at 8.00 a.m. (r = 0.23; P < 0.05), average morning milk yield per once milked cow (r = 0.31, P < 0.01, total morning milk yield per twice milked cow on the second milking at 8.00 a.m. (r = 0.37, P < 0.001) and total morning milk yield per twice milked cow (r = 0.26; P < 0.05). Other analyzed parameters were not affected by BAT or RH (P > 0.05). The objective of this study was to determinate the effect of milking frequency on milk production of Holstein cows during winter and summer. Total number of cows was divided into two groups by milk yield. Almost 40 % of cows milked more than 25 kg of milk per day per cow so cows are milked twice during the morning. The other more than 60 % of dairy cows milked per day less than 25 kg of milk per day, and these cows are milked once during the morning. In summer and winter period were monitoring the average daily temperature in the barn (BAT) and the stable relative humidity (RH). The study lasted 177 days (data analyzed daily) in the summer (from 1 June 2013 to 31 August 2013) and in winter period (from 1 December 2013 to 23 February 2014). Data comes from University farm. The farm is situated in Žabčice (GPS49°0'51.786%22N, 16°36'14.809%22E). Based on the correlation of milk production data of Holstein breed was found with increasing BAT reduces average morning milk yield per twice milked cow on the second milking at 8.00 a.m. (r = -0.32, P < 0.01), total average morning milk yield per once milked cow (r = -0.23; P < 0.05) and total morning milk yield (r = -0.41, P < 0.001). In milk production data was observed that with decreasing RH in summer reduces average morning milk yield per twice milked cow on the second milking at 8.00 a.m. (r = 0.23; P < 0.05), average morning milk yield per once milked cow (r = 0.31, P < 0.01, total morning milk yield per twice milked cow on the second milking at 8.00 a.m. (r = 0.37, P < 0.001) and total morning milk yield per twice milked cow (r = 0.26; P < 0.05). Other analyzed parameters were not affected by BAT or RH (P > 0.05).
dcterms:title
Effect of milking frequency on milk production of holstein cows during winter and summer period Effect of milking frequency on milk production of holstein cows during winter and summer period
skos:prefLabel
Effect of milking frequency on milk production of holstein cows during winter and summer period Effect of milking frequency on milk production of holstein cows during winter and summer period
skos:notation
RIV/62156489:43210/14:00222973!RIV15-MSM-43210___
n4:aktivita
n5:S
n4:aktivity
S
n4:dodaniDat
n8:2015
n4:domaciTvurceVysledku
n6:3225992 n6:2997371 n6:3258394 n6:1263900 n6:8215766 n6:9361537
n4:druhVysledku
n17:D
n4:duvernostUdaju
n11:S
n4:entitaPredkladatele
n14:predkladatel
n4:idSjednocenehoVysledku
13404
n4:idVysledku
RIV/62156489:43210/14:00222973
n4:jazykVysledku
n20:eng
n4:klicovaSlova
milking frequency; holstein cows; barn airspace temperature; relative humidity
n4:klicoveSlovo
n12:holstein%20cows n12:barn%20airspace%20temperature n12:relative%20humidity n12:milking%20frequency
n4:kontrolniKodProRIV
[70479374A6C3]
n4:mistoKonaniAkce
Prušánky
n4:mistoVydani
Brno
n4:nazevZdroje
Animal Physiology 2014
n4:obor
n7:GG
n4:pocetDomacichTvurcuVysledku
6
n4:pocetTvurcuVysledku
6
n4:rokUplatneniVysledku
n8:2014
n4:tvurceVysledku
Andrýsek, Jiří Chládek, Gustav Javorová, Jana Falta, Daniel Večeřa, Milan Velecká, Milena
n4:typAkce
n16:WRD
n4:zahajeniAkce
2014-05-21+02:00
s:numberOfPages
6
n19:hasPublisher
Mendel University in Brno
n10:isbn
978-80-7375-971-1
n13:organizacniJednotka
43210