Modelling Extended Lactations in Polish Holstein–Friesian Cows by Agnieszka Otwinowska-Mindur, Ewa Ptak, Joanna Makulska, Olga Jarnecka

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Estimation of Genetic Parameters for Female Fertility Traits in the Polish Holstein-Friesian Population by Agnieszka Otwinowska-Mindur, Ewa Ptak, Wojciech Jagusiak, Andrzej Zarnecki

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Effect of Calving Difficulties and Calf Mortality on Functional Longevity in Polish Holstein-Friesian Cows by Małgorzata Morek-Kopeć, Andrzej Zarnecki, Ewa Ptak, Agnieszka Otwinowska-Mindur

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Species-Specific Paternal Age Effects and Sperm Methylation Levels of Developmentally Important Genes by Andreas Prell, Mustafa Orkun Sen, Ramya Potabattula, Laura Bernhardt, Marcus Dittrich, Thomas Hahn, Martin Schorsch, Federica Zacchini, Grazyna Ewa Ptak, Heiner Niemann, Thomas Haaf

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