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Statements

Subject Item
n2:RIV%2F00027014%3A_____%2F10%3A%230001346%21RIV11-MZE-00027014
rdf:type
skos:Concept n17:Vysledek
dcterms:description
The aims of this study were to evaluate the relationship between milk urea concentration (MU) and fertility in dairy cows and to investigate the potential for using body condition score (BCS) in combination with MU as an indicator for monitoring animals’ energy status. Two commercial farms were chosen, one with Holsteins and a second with dual-purpose Czech Fleckvieh cattle. The multifactorial analysis of variance was performed using CORR and GLM procedures in software SAS 8.1. MU had only minimal relationship with reproduction indexes. In the Czech Fleckvieh cows it was related only to length of calving interval (CI), and in Holsteins to the number of inseminations per conception. The results were inconsistent between the two cases: in Fleckvieh the cows with lowest MU had the longest CI, while in Holsteins a higher number of inseminations per conception was associated with the middle level of MU. Inconsistent results were obtained also in the case of MU at conception. The aims of this study were to evaluate the relationship between milk urea concentration (MU) and fertility in dairy cows and to investigate the potential for using body condition score (BCS) in combination with MU as an indicator for monitoring animals’ energy status. Two commercial farms were chosen, one with Holsteins and a second with dual-purpose Czech Fleckvieh cattle. The multifactorial analysis of variance was performed using CORR and GLM procedures in software SAS 8.1. MU had only minimal relationship with reproduction indexes. In the Czech Fleckvieh cows it was related only to length of calving interval (CI), and in Holsteins to the number of inseminations per conception. The results were inconsistent between the two cases: in Fleckvieh the cows with lowest MU had the longest CI, while in Holsteins a higher number of inseminations per conception was associated with the middle level of MU. Inconsistent results were obtained also in the case of MU at conception.
dcterms:title
Milk urea concentration as a predictor of reproductive performance in dairy cows? Milk urea concentration as a predictor of reproductive performance in dairy cows?
skos:prefLabel
Milk urea concentration as a predictor of reproductive performance in dairy cows? Milk urea concentration as a predictor of reproductive performance in dairy cows?
skos:notation
RIV/00027014:_____/10:#0001346!RIV11-MZE-00027014
n4:aktivita
n13:P
n4:aktivity
P(QH71284)
n4:cisloPeriodika
4
n4:dodaniDat
n16:2011
n4:domaciTvurceVysledku
n8:3691802 n8:4008367 n8:1195735
n4:druhVysledku
n11:J
n4:duvernostUdaju
n15:S
n4:entitaPredkladatele
n7:predkladatel
n4:idSjednocenehoVysledku
271459
n4:idVysledku
RIV/00027014:_____/10:#0001346
n4:jazykVysledku
n9:eng
n4:klicovaSlova
dairy cattle, milk urea, reproduction, negative energy balance
n4:klicoveSlovo
n10:reproduction n10:dairy%20cattle n10:milk%20urea n10:negative%20energy%20balance
n4:kodStatuVydavatele
CZ - Česká republika
n4:kontrolniKodProRIV
[072D45B2F69D]
n4:nazevZdroje
Výzkum v chovu skotu
n4:obor
n6:GG
n4:pocetDomacichTvurcuVysledku
3
n4:pocetTvurcuVysledku
3
n4:projekt
n5:QH71284
n4:rokUplatneniVysledku
n16:2010
n4:svazekPeriodika
52
n4:tvurceVysledku
Zink, Vojtěch Štípková, Miloslava Kubešová, Marta
s:issn
0139-7265
s:numberOfPages
12