References
- De Vliegher , S. , Laevens , H. , Barkema , H. W. , Dohoo , I. R. , Stryhn , H. , Opsomer , G. and de Kruif , A. 2004 . Management practices and heifer characteristics associated with early lactation somatic cell count of Belgian dairy heifers . J. Dairy Sci. , 87 : 937 – 947 .
- Green , M. J. , Bradley , A. J. , Newton , H. and Browne , W. J. 2006 . Seasonal variation of bulk milk somatic cell counts in U.K. dairy herds: Investigations of the summer rise . Prev. Vet. Med. , 74 : 293 – 308 .
- Harmon , R. J. 1994 . Physiology of mastitis and factors affecting somatic cell counts . J. Dairy Sci. , 77 : 2103 – 2112 .
- Harmon , R. J. Somatic cell counts: a primer . National Mastitis Council Annual Meeting Proceedings, 40., Reno 2001. Proceedings . pp. 3 – 9 . Madison : National Mastitis Council .
- Ikonén , T. , Morri , S. , Tyrisevä , A. M. , Ruottinen , O. and Ojala , M. 2004 . Genetic and phenotypic correlations between milk coagulation properties, milk production traits, somatic cell count, casein content, and pH of milk . J. Dairy Sci. , 87 : 458 – 467 .
- Laevens , H. , Deluyker , H. , Schukken , Y. H. , De Meulemeester , L. , Vandemeersch , R. , De Muélenaere , E. and De Kruif , A. 1997 . Influence of parity and stage of lactation on the somatic cell count in bacteriologically negative dairy cows . J. Dairy Sci. , 80 : 3219 – 3226 .
- Miller , R. H. , Norman , H. D. , Wiggans , G. R. and Wright , J. R. 2004 . Relationship of test-day somatic cell score with test-day and lactation milk yields . J. Dairy Sci. , 87 : 2299 – 2306 .
- Rogers , G. W. , Hargrove , G. L. and Cooper , J. B. 1995 . Correlations among somatic cell scores of milk within and across lactations and linear type traits of Jerseys . J. Dairy Sci. , 78 : 914 – 920 .
- Singh , M. and Ludri , R. S. 2001 . Influence of stages of lactation, parity and season on somatic cell counts in cows . Asian-Aust. J. Anim. Sci. , 14 : 1775
- SPSS 10.00 Computer Software . 1999 . 233 Headquarters : SPSS Inc . Wacker Drive, Chicago, Illinois 60606, USA
- Topaloglu , N. and Gunes , H. 2005 . Studies on reproductive traits of Holstein-Friesian cattle in England . J. Fac. Vet. Med., Istanbul Univ., Turkey , 31 ( 1 ) : 149 – 164 . [in Turkish]
- Uzmay , C. , Kaya , L. , Akbas , Y. and Kaya , A. 2003 . Effects of udder and teat morphology, parity and lactation stage on subclinical mastitis in Holstein cows . Turk J. Vet. Anim. Sci. , 27 : 695 – 701 . [in Turkish]
- Waage , S. , Sviland , S. and Odegaard , S. A. 1998 . Identification of risk factors for clinical mastitis in dairy heifers . J. Dairy Sci. , 81 : 1275 – 1284 .
- Yalcin , C. , Cevger , Y. , Turkyilmaz , K. and Uysal , G. 2000 . Estimation of milk yield losses from subclinical mastitis in dairy cows . Turk J. Vet. Anim. Sci. , 24 : 599 – 604 . [in Turkish]