Concepedia

E. Ptak

EP

14

Publications

558

Citations

12

H-Index

1993

Active since

Affiliations

University of Agriculture in Krakow(Current)

University of Guelph

National Research Institute of Animal Production

E. Ptak is an author at University of Agriculture in Krakow specializing in animal science, public health, and fertility.

ORCID

Top concepts

Publications per year

1993–2021

14

Publications

14

Use of test day yields for genetic evaluation of dairy sires and cows

E. Ptak, L.R. Schaeffer · Livestock Production Science · 1993 · 279 citations

, , +14

Comparison of Random Regression Test-Day Models for Polish Black and White Cattle

T. Strabel, Joanna Szyda, E. Ptak et al. · Journal of Dairy Science · 2005 · 78 citations · Full text

Heritabilities and genetic correlations of lactational and daily somatic cell score with conformation traits in Polish Holstein cattle

E. Ptak, W. Jagusiak, A. Żarnecki et al. · Czech Journal of Animal Science · 2011 · 31 citations · Full text

, , +22

Genetic relationship between milk dry matter and other milk traits in extended lactations of Polish Holstein cows

Kemal Yazgan, J. Makulska, A. Węglarz et al. · Czech Journal of Animal Science · 2010 · 26 citations · Full text

, , +23

Genetic parameters for lactose percentage in the milkof Polish Holstein-Friesians

E. Ptak, P. Brzozowski, Józef Bieniek · Journal of Animal and Feed Sciences · 2012 · 20 citations · Full text

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