Factors influencing somatic cell score in Swiss dairy production systems

Schweizer Archiv fur Tierheilkunde

Volumn 146, Issue 12, 2004, Pages 555-560

  Bielfeldt, J C ^a   Badertscher, R ^b   Tolle K H ^a   Krieter, J ^a  

^a UNIVERSITY OF KIEL   (Germany)

^b Swiss Fed Res Stn Agric Econ E   (Switzerland)

Author keywords

Housing systems; Loose housing; Somatic cell score; Swiss Brown cattle; Tie stall barn

Indexed keywords

MILK FAT; MILK PROTEIN;

ARTICLE; CELL COUNT; CONTROLLED STUDY; DAIRYING; FOOD ANALYSIS; LACTATION; MILK; NONHUMAN; SCORING SYSTEM; SOMATIC CELL; SWITZERLAND;

BOS TAURUS;

EID: 10044272050     PISSN: 00367281     EISSN: None     Source Type: Journal    
DOI: 10.1024/0036-7281.146.12.555     Document Type: Article

References (14)

1. Aeberhard K., Bruckmaier R., Blum J.: Hochleistungskühe in der Schweiz. Agrarforschung 1997, 4: 277-280.
2. Ali T.E., Schaeffer L.R.: Accounting for covariances among test day milk yields in dairy cows. Can. J. Anim. Sci. 1987, 67: 637-644.
3. Danuser J.: Individuelle Zellzahl und Eutergesundheit. Ph. D. thesis, ETH Zurich 1992.
4. Dopp L., Reents R., Reinhardt F., Schmutz M.: Beschreibung des Zuchtwertschätzverfahrens für Eutergesundheit. DGfZ-Schriftenreihe 1998, 11: 34-40.
5. Elbers A. R. W., Miltenburg J.D., De Lange D., Crauwels A.P.P., Barkema H. W., Schukken Y.H.: Risk factors for clinical mastitis in a random sample of dairy herds from southern part of the Netherlands. J. Dairy Sci. 1998, 81: 420-426.
6. Haile-Mariam M., Goddard M. E., Bowman P. J.: Estimates of genetic parameters for daily somatic cell count in Australian dairy cattle. J. Dairy Sci. 2001, 84: 1255-1264.
7. Matzke P., Holzer A., Deneke J.: Ein Beitrag zum Einfluss von Umweltfaktoren auf das Vorkommen von Eutererkrankungen. Tierärztl. Prax. 1992, 20: 21-32.
8. Mrode R.A., Swanson G.J.T., Winters M.S.; Genetic parameters and evaluation for somatic cell counts and its relationship with production and type traits in some dairy breeds in the United Kingdom. Anim. Sci. 1998, 569-576.
9. Reents R., Jamrozik J., Schaeffer L.R., Dekkers J.C.M.: Estimation of genetic parameters for test day records of somatic cell score. J. Dairy Sci. 1995, 78: 2847-2857.
10. SAS. SAS/STAT User's Guide, Version 8, first edition, Cary, NC, USA, 2002.
11. Schutz M. M., Hansen L. B., Steuernagel G. R., Kuck A. L.: Variation of milk, fat, protein, and somatic cells for dairy cattle. J. Dairy Sci. 1990, 73: 484-493.
12. Valde J.P., Hird D.W., Thurmond M.C., Østerås O.: Comparison of ketosis, clinical mastitis, somatic cell count, and reproductive performance between free stall and tie stall barns in Norwegian dairy herds with automatic feeding. Acta Vet. Scand. 1997, 38:181-192.
13. Walkenhorst M.: Mastitis: Kein Wundermittel gegen die Kuhkrankheit Nummer 1. Bio aktuell 2000, 9: 4-7.
14. Zhang W.C., Dekkers J.C.M., Banos G., Burnside E.B.: Adjustment factors and genetic evaluation for somatic cell score and relationships with other traits of Canadian Holsteins. J. Dairy Sci. 1994, 77: 659-665.