About: Milk urea concentration as a predictor of reproductive performance in dairy cows?

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
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. (en)
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? (en)
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? (en)
skos:notation	RIV/00027014:_____/10:#0001346!RIV11-MZE-00027014
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(QH71284)
http://linked.open...iv/cisloPeriodika	4
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Zink, Vojtěch Štípková, Miloslava Kubešová, Marta
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Výzkumný ústav živočišné výroby, v.v.i.
http://linked.open...dnocenehoVysledku	271459
http://linked.open...ai/riv/idVysledku	RIV/00027014:_____/10:#0001346
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	dairy cattle, milk urea, reproduction, negative energy balance (en)
http://linked.open.../riv/klicoveSlovo	negative energy balance dairy cattle reproduction milk urea
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[072D45B2F69D]
http://linked.open...i/riv/nazevZdroje	Výzkum v chovu skotu
http://linked.open...in/vavai/riv/obor	GG
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Definition of biological and manager parameters for high pig efficiency level
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	52
http://linked.open...iv/tvurceVysledku	Zink, Vojtěch Štípková, Miloslava Kubešová, Marta
issn	0139-7265
number of pages	12 (xsd:int)

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