Relation between bulk tank milk somatic cell count, milk proteins and fat content, and major mastitis pathogens isolation
2006
Hristov, S., Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Relic, R., Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Vukovic, D., PKB INI Agroekonomik, Padinska Skela (Serbia) | Stankovic, B., Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Joksimovic-Todorovic, M., Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Davidovic, V., Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Gavric, B., Visa poljoprivredna skola, Sabac (Serbia)
In this paper the annual results of bulk tank milk somatic cell count, milk proteins and fat content of intensive cow rearing system heard are showed, and major mastitis pathogens, Staphylococcus aureus and Streptococcus agalactiae as well. Number of cows in lactation from month to month was 1315 to 1442. The average somatic cell count was 446.08 x 10**3 in 1 ml of bulk tank milk (with variation from 234 to 622 x 10**3 in 1 ml), the average proteins content was 3.21% (from 3.11 to 3.62%), and the average milk fat content 3.64% (from 49 to 3.79%). From total 2305 examined cows with increased somatic cell count, at 163 heads (7.07%) S. aureus and at 361 (15.66%) Str. agalactiae as mastitis pathogen was isolated. Statistical significant differences in bulk tank somatic cell count are established related to season, as well as statistical significant (P is less than 0.05) strong negative correlation between bulk tank milk SCC and protein content in milk, and statistical significant, very strong positive correlation between checked cow number and number of heads with Str. agalactiae.
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