Néhány szaporodásbiológiai paraméter kapcsolata az ellés körüli anyagforgalommal egy nagy tejtermelésű tehenészetben

Abstract

The authors have monitored and evaulated the periparturient period of 60 dairy cattle in a hungarian Holstein friesian dairy farm between September and October 2014. 60 animals were monitored from day 5 before the expected calving until the 7th week postcalving.