Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Jochen Wolf"'
Publikováno v:
Journal of Dairy Science. 97:1092-1106
Improving the feed efficiency of dairy cattle has a substantial effect on the economic efficiency and on the reduction of harmful environmental effects of dairy production through lower feeding costs and emissions from dairy farming. To assess the ec
Publikováno v:
Preventive Veterinary Medicine. 77:48-64
Data on clinical mastitis (CM) collected between 1996 and 2003 on five Holstein dairy farms in the Czech Republic were analyzed. Lactational incidences of CM, averaged across farms and calculated only from cows with complete lactations, were 0.35, 0.
Publikováno v:
Livestock Production Science. 77:155-165
The covariance structure was estimated by REML for a joint genetic evaluation of traits from field test, station test and litter recording with data from the Czech Landrace (LA, 86 833 records) and the Slovak White Meaty breed (WM, 58 348 records). P
Publikováno v:
Livestock Production Science. 43:63-73
The economic weights for net daily gain, dressing percentage and average class of fleshiness and fat covering were calculated for Czech Pied cattle. They were defined as the partial derivatives of the discounted profit function with respect to the ev
Publikováno v:
Journal of dairy science. 93(3)
Cases of mastitis from 9,550 lactations of 6,242 cows were recorded on 5 farms in the Czech Republic from 1996 to 2008. The number of clinical mastitis (CM) cases per cow adjusted to a lactation length of 305 d was analyzed with 4 linear single-trait