Genetic Parameters of Postnatal Mortality in Danish Holstein Calves

The objective of this study was to estimate genetic parameters of postnatal mortality (PM) in dairy cattle. Data originated from 841,921 Danish Holstein calves. Four binary traits of mortality were considered: D1-14, D15-60, D61-180, and D1-180 with numbers indicating the period of risk in days afte...

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Veröffentlicht in:	Journal of dairy science 2003-05, Vol.86 (5), p.1807-1817
Hauptverfasser:	Hansen, M., Madsen, P., Jensen, J., Pedersen, J., Christensen, L.G.
Format:	Artikel
Sprache:	eng
Schlagworte:	age Aging animal diseases animal genetics Animal productions Animals Animals, Newborn - genetics Animals, Newborn - physiology Biological and medical sciences calf calves Cattle - genetics cattle diseases digestive system diseases Female Fundamental and applied biological sciences. Psychology gender differences gene expression genetic correlation genetic parameter Genetic Predisposition to Disease heritability Holstein Linear Models Male maternal effect Models, Genetic Mortality neonates Parity phenotype Pregnancy respiratory tract diseases risk groups Seasons selection criteria sire evaluation Terrestrial animal productions Time Factors twins Vertebrates
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