Berta, Attila

Béri, Béla

English

Berta Attila

Béri Béla

University of Szeged

74 Agrár- és Vidékfejlesztési Szemle 2009. vol. 4. (1) L A C T A T I O N S O F H O L S T E I N F R I E S I A N C O W S W I T H L O N G L I F E T I M E ATTILA BERTA1, BÉLA BÉRI2 'Central Agricultural Office, Budapest, Hungary 2University of Debrecen, Faculty of Agricultural Sciences, Debrecen, Hungary berta71 @freestart.hu ABSTRACT - Lactations of Holstein Friesian Cows with long life time The mean number of lactations per a Holstein Friesian cow is 2.3 in Hungary today. In our analysis we selected those cattle found in the national database that performed at least 8 lactations between 1988 and 2006. From our findings we conclude that the mean lactation is 8.6. Though their lactation production was not outstanding, their dairy production increased gradually until the 6th lactation. Probably their performance is more economic than those ones' that have significant lactation productivity but perform only ca. 2 lactations. Keywords: lactation, lifetime, cow, Holstein Friesian, milk 

Lactations of Holstein Friesian cows with long lifetime

http://acta.bibl.u-szeged.hu/13135/1/agrarszemle_2009_001_074.pdf

Lactations of Holstein Friesian cows with long lifetime

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