1 |
Miller, R. H., M. J. Paape, R. Filep and S. Link. 1993. Flow cytometric analysis of neutrophils in cows' milk. Am. J. Vet. Res. 54:1975-1979.
|
2 |
Modransky, P. and B. Welker. 1993. Management of teat lacerations and fistulae in cows. Vet. Med. 88:995-1000.
|
3 |
Mrode, R. A. and G. J. T. Swanson. 1996. Genetic and statistical properties of somatic cell count and its suitability as an indirect means of reducing the incidence of mastitis in dairy cattle. Anim. Breed. Abstr. 66:847-857.
|
4 |
Negussie, E., M. Koivula and E. A. Mantysaari. 2006. Genetic parameters and single versus multi-trait evaluation of udder health traits. Acta Agric. Scand., Section A- Animal Sciences 56:73-82.
|
5 |
Nielsen, U. S., G. A. Pedersen and J. Jensen. 1997. Genetic correlations among health traits in different lactations. Interbull Bulletin, 15:68-77.
|
6 |
Nooruddin, M., M. S. Rahman and M. M. Rahman. 1997. Prevalence and distribution of teat papillomatosis in crossbred and exotic dairy cows. Bangladesh Vet. 14(1-2):5-7.
|
7 |
Hultgren, J. and C. Svensson. 2009. Lifetime risk and cost of clinical mastitis in dairy cows in relation to heifer rearing conditions in southwest Sweden. J. Dairy Sci. 92:3274-3280.
DOI
ScienceOn
|
8 |
Interbull. 2008. Description of national genetic evaluation systems for dairy cattle traits as applied in different Interbull member countries. Retrieved September 4, 2008 from http://wwwinterbull.slu.se/national_ges_info2/framesida-ges.htm
|
9 |
Jackson, P. 1996. Skin diseases of the bovine udder and teat. In Pract. 18:76-80.
DOI
|
10 |
Janzen, J. J. 1970. Economic losses resulting from mastitis. A review. J. Dairy Sci. 53:1151-1160.
DOI
|
11 |
Jorstad, A., T. B. Farver and H. Riemann. 1989. Teat canal diameter and other cow factors with possible influence on somatic cell counts in cow milk. Acta Vet. Scand. 30:239-245.
|
12 |
King, J. O. L. 1972. Mastitis as a production disease. Vet. Rec. 30(14):325-330.
|
13 |
Laevens, H., H. Deluyker, Y. H. Schukken, L. De Meulemeester, R. Vandermeersch, E. De Muelenaere and A. De Kruif. 1997. Influence of parity and stage of lactation on the somatic cell count in bacteriologically negative dairy cows. J. Dairy Sci. 80:3219-3226.
DOI
ScienceOn
|
14 |
Lassen, J. M., M. K. Hansen, G. P. Sørensen, Aamand, L. G. Christensen and P. Madsen. 2003. Genetic relationship between body condition score, dairy character, mastitis, and diseases other than mastitis in first-parity Danish Holstein cows. J. Dairy Sci. 86:3730-3735.
DOI
ScienceOn
|
15 |
Losinger, W. C. 2005. Economic impacts of reduced milk production associated with an increase in bulk-tank somatic cell count on US dairies. J. Am. Vet. Med. Assoc. 226(10): 1652-1658.
DOI
ScienceOn
|
16 |
Emanuelson, U., B. Danell and J. Philipsson. 1988. Genetic parameters for clinical mastitis, somatic cell counts, and milk production estimated by multiple-trait restricted maximum likelihood. J. Dairy Sci. 71:467-476.
DOI
|
17 |
Emanuelson, U. and H. Funke. 1991. Effect of milk yield on relationship between bulk milk somatic cell count and prevalence of mastitis. J. Dairy Sci. 74:2479-2483.
DOI
|
18 |
Geishauser, T., K. Querengasser, M. Nitschke and A. Sorbiraj. 1999. Milk yield, somatic cell counts, and risk of removal from the herd for dairy cows after covered teat canal injury. J. Dairy Sci. 82:1482-1488.
DOI
ScienceOn
|
19 |
Hagnestam, C., U. Emanuelson and B. Berglund. 2007. Yield losses associated with clinical mastitis occurring in different weeks of lactation. J. Dairy Sci. 90:2260-2270.
DOI
ScienceOn
|
20 |
Hagnestam-Nielsena, C. and S. Ostergaarda. 2009. Economic impact of clinical mastitis in a dairy herd assessed by stochastic simulation using different methods to model yield losses. Animal 3:315-328.
DOI
ScienceOn
|
21 |
Hansen, M., M. S. Lund, M. K. Sorensen and L. G. Christensen. 2002. Genetic parameters of dairy character, protein yield, clinical mastitis, and other diseases in the Danish Holstein cattle. J. Dairy Sci. 85:445-452.
DOI
ScienceOn
|
22 |
Harvey, W. R. 1990. User's guide For LSMLMW, mixed model least squares program. PC-2 Version. Ohio State. University, Columbus (Mimeograph), USA.
|
23 |
Heringstad, B., G. Klemetsdal and J. Ruane. 1999. Clinical mastitis in Norwegian cattle: Frequency, variance components, and genetic correlation with protein yield. J. Dairy Sci. 82: 1325-1330.
DOI
ScienceOn
|
24 |
Heringstad, B., G. Klemetsdal and J. Ruane. 2000. Selection for mastitis resistance in dairy cattle: a review with focus on the situation in the Nordic countries. Livest. Prod. Sci. 64:95-106.
DOI
ScienceOn
|
25 |
Coffey, E. M., W. E. Vinson and R. E. Pearson. 1986a. Somatic cell counts and infection rates for cows of varying somatic cell count in initial test of first lactation. J. Dairy Sci. 69:552-555.
DOI
|
26 |
Coffey, E. M., W. E. Vinson and R. E. Pearson. 1986b. Potential of somatic cell concentration in milk as a sire selection criterion to reduce mastitis in dairy cattle. J. Dairy Sci. 69:2163-2172.
DOI
|
27 |
Dohoo, I. R. and A. H. Meek. 1982. Somatic cell counts in bovine milk. Can. Vet. J. 23:119-125.
|
28 |
De Graafa, D. and R. H. Dwingerb. 1996. Estimation of milk production losses due to sub-clinical mastitis in dairy cattle in Costa Rica. Prev. Vet. Med. 26 (3-4):215-222.
DOI
ScienceOn
|
29 |
De Graves, F. J. and J. Fetrow. 1993. Economics of mastitis and mastitis control. Vet. Clin. N. Am., Food Anim. Prog. 9:421-434.
|
30 |
Dohoo, I. R. and K. E. Leslie. 1991. Evaluation of changes in somatic cell counts as indicators of new intramammary infections. Prev. Vet. Med. 10:225-237.
DOI
ScienceOn
|
31 |
Durr, J. W., R. I. Cue, H. G. Monardes, J. Moro-Mendez and K. M. Wade. 2008. Milk losses associated with somatic cell counts per breed, parity and stage of lactation in Canadian dairy cattle. Livest. Sci. 117:225-232.
DOI
ScienceOn
|
32 |
Eicher, R., E. Bouchard and M. Bigras-Poulin. 1999. Factors affecting milk urea nitrogen and protein concentrations in Quebec dairy cows. Prev. Vet. Med. 39:53-63.
DOI
ScienceOn
|
33 |
El-Arian, M. N. and H. G. El-Awady. 2008. Assessment of the genetic relationships between udder health and milk production traits in relation to selection for improving resistance to mastitis in Friesian cows in Egypt. J. Agric. Sci. Mansoura Univ. 33:181-192.
|
34 |
Emanuelson, U. 1988. Recording of production diseases in cattle and possibilities for genetic improvements: A review. Livest. Prod. Sci. 20:89-106.
DOI
ScienceOn
|
35 |
Boldman, K. G., L. A. Kriese, L. D. Van Vleck and C. P. Van Tassel. 1995. A manual for the use of MTDFREML. A set of programs to obtain estimates of variance and covariances (Draft). USDA, Agricultural Research Service.
|
36 |
Barkema, H. W., Y. H. Schukken, T. J. G. M. Lam, M. L. Beiboer, H. Wilmink, G. Benedictus and A. Brand. 1998. Incidence of clinical mastitis in dairy herds grouped in three categories by bulk milk somatic cell counts. J. Dairy Sci. 81:411-419.
DOI
ScienceOn
|
37 |
Bartlett, P. C., C. R. Anderson and J. H. Kirk. 1990. Milk production and somatic cell count in Michigan dairy herds. J. Dairy Sci. 73:2794-2800.
DOI
|
38 |
Blosser, T. H. 1979. Economic losses from and the national research program on mastitis in the United States. J. Dairy Sci. 62:119-127.
DOI
|
39 |
Carlen, E., E. Strandberg and A. Roth. 2004. Genetic parameters for clinical mastitis, somatic cell score, and production in the first three lactations of Swedish Holstein cows. J. Dairy Sci. 87:3062-3070.
DOI
ScienceOn
|
40 |
Schepers, J. A. and A. A. Dijkhuizen. 1991. The economics of mastitis and mastitis control in dairy cattle: A critical analysis of estimates published since 1970. Prev. Vet. Med. 10:213-224.
DOI
ScienceOn
|
41 |
Schukken, Y. H., F. J. Grommers, D. Van de Geer, H. N. Erb and A. Brand. 1990. Risk factors for clinical mastitis in herds with a low bulk milk somatic cell count. 1. Data and risk factors for all cases. J. Dairy Sci. 73:3463-3471.
DOI
|
42 |
Schultz, L. H. 1977. Somatic cells in milk - physiological aspects and relationship to amount and composition of milk. J. Food Prot. 40(2):125-131.
|
43 |
Seegers, H., C. Fourichon and F. Beaudeau. 2003. Production effects related to mastitis and mastitis economics in dairy cattle herds. Vet. Res. 34:475-491.
DOI
ScienceOn
|
44 |
Shook, G. E. 1989. Selection for disease resistance. J. Dairy Sci. 72:1349-1362.
DOI
|
45 |
Simianer, H., H. Solbu and L. R. Schaeffer. 1991. Estimated genetic correlations between disease and yield traits in dairy cattle. J. Dairy Sci. 74:4359-4365.
|
46 |
O'Rourke, D. 2009. Nutrition and udder health in dairy cows: A review. Ir. Vet. J. 62(Supplement):15-22.
DOI
ScienceOn
|
47 |
Weller, J. I., A. Saran and Y. Zeliger. 1992. Genetic and environmental relationships among somatic cell count, bacterial infection, and clinical mastitis. J. Dairy Sci. 75:2532-2540.
DOI
|
48 |
Wilson, L. L., R. J. Eberhart, M. J. Simpson, H. Varela-Alvarez, M. C. Rugh and L. G. Bair. 1971. Incidence of intramammary infections and effects of number of lactations, lactation stage, quarter and calf sex on somatic cell content of milk from Angus-Holstein F1 cows. J. Anim. Sci. 33:433-437.
|
49 |
Nyman, A. K. 2007. Epidemiological studies of risk factors for bovine mastitis. Doctoral thesis. Swedish University of Agricultural Sciences. Uppsala, Sweden. Electronic version available at http://epsilon.slu.se/eng
|
50 |
Petzer, I-M., J. Karzis, J. C. Watermeyer, T. J. Van der Schans and R. Van Reenen. 2009. Trends in udder health and emerging mastitogenic pathogens in South African dairy herds. J. S. Afr. Vet. Assoc. 80(1):17-22.
|
51 |
Philipsson, J., G. Ral and B. Berglund. 1995. Somatic cell count as a selection criteria for mastitis resistance in dairy cattle. Livest. Prod. Sci. 41:195-200.
DOI
ScienceOn
|
52 |
Poso, J. and E. A. Mantysaari. 1996. Relationships between clinical mastitis, somatic cell score, and production for the first three lactations of Finnish Ayrshire. J. Dairy Sci. 79:1284-1291.
DOI
ScienceOn
|
53 |
Schepers, A. J., T. J. G. M. Lam, Y. H. Schukken, J. B. M. Wilmink, and W. J. A. Hanekamp. 1997. Estimation of variance components for somatic cell counts to determine thresholds for uninfected quarters. J. Dairy Sci. 80:1833-1840.
DOI
ScienceOn
|
54 |
Pryce, J. E., R. F. Veerkamp, R. J. Esslemont, M. A. Kossaibati and G. Simm. 1997. Genetic associations amongst health and fertility traits for two UK recording schemes. Interbull Bulletin, 15:92-97.
|
55 |
Pyorala, S., H. J. Somer and M. Mero. 1992. Clinical, bacteriological and therapeutic aspects of bovine mastitis caused by aerobic and anaerobic pathogens. Br. Vet. J. 148:54-62.
DOI
ScienceOn
|
56 |
Rupp, R. and D. Boichard. 1999. Genetic parameters for clinical mastitis, somatic cell score, production, udder type traits, and milking ease in first lactation Holsteins. J. Dairy Sci. 82:2198-2204.
DOI
ScienceOn
|
57 |
Lund, M. S., J. Jensen and P. H. Peterson. 1999. Estimation of genetic and phenotypic parameters for clinical mastitis, somatic cell production deviance, and protein yield in dairy cattle using Gibbs sampling. J. Dairy Sci. 82:1045-1051.
DOI
ScienceOn
|
58 |
Lund, T., F. Miglior, J. C. M. Dekkersand and E. B. Burnside. 1994. Genetic relationships between clinical mastitis, somatic cell count, and udder conformation in Danish Holsteins. Livest. Prod. Sci. 39:243-251.
DOI
ScienceOn
|
59 |
Luttinen, A. and J. Juga. 1997. Genetic relationships between milk yield, somatic cell count, mastitis, milkability and leakage in Finnish dairy cattle. Interbull Bull. 15:78-83.
|
60 |
Miglior, F., B. L. Muir and B. J. van Doormaal. 2005. Selection indices in Holstein cattle of various countries. J. Dairy Sci. 88: 1255-1263.
DOI
ScienceOn
|