Tropical Animal Health and Production

, Volume 37, Issue 6, pp 503–512 | Cite as

Reduced Milk Production in Udder Quarters with Subclinical Mastitis and Associated Economic Losses in Crossbred Dairy Cows in Ethiopia

  • E. O. Mungube
  • B.-A. Tenhagen
  • F. Regassa
  • M. N. Kyule
  • Y. Shiferaw
  • T. Kassa
  • M. P. O. Baumann
Article

Abstract

The objective of the study was to estimate the losses associated with subclinical mastitis (SCM) in crossbred dairy cows in the Central Highlands of Ethiopia. A split udder investigation was performed with 30 cows to determine production losses associated with SCM. Each quarter of the study cows was examined using the California Mastitis Test (CMT) and quarter milk production was measured over a period of 8 days. Production losses were determined for different CMT scores by comparing production of quarters with CMT score 0 to quarters with CMT scores trace, 1, 2 and 3, respectively. Using data from a recently published study, economic losses were determined for different farm sizes and production subsystems by multiplying the prevalence of the respective CMT scores with the production losses associated with these CMT scores. Mean quarter milk production was 0.82 + 0.40 kg per milking in the split udder trial. Milk production was reduced by 1.2%, 6.3%, and 33% in quarters with CMT scores 1+, 2+, and 3+, respectively. Using data from the published study, a quarter with SCM lost an average of 17.2% of its milk production. Production losses associated with SCM were estimated at 5.6% for the Addis Ababa Milk Shed. Stratified losses were highest (9.3%) in urban dairy farms (UDF) and small-scale farms (6.3%). The estimates of the financial losses ranged from US$29.1 in dairy herds in secondary towns (DHIST) to US$66.6 in UDF. A total loss of US$38 was estimated for each cow per lactation. Reducing mastitis in UDF (highest prevalence) to the level of DHIST (lowest prevalence) could reduce the loss by US$35. As this does not include costs associated with treatment or culling of diseased cows, this figure probably underestimates the possible benefits of control measures.

Keywords

California Mastitis Test economics Ethiopia milk production subclinical mastitis 

Abbreviation

CMT

California Mastitis Test

DHIST

dairy herds in secondary towns

PUDF

peri-urban dairy farms

SCM

subclinical mastitis

UDF

urban dairy farms

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Copyright information

© Springer Science + Business Media, Inc. 2005

Authors and Affiliations

  • E. O. Mungube
    • 1
  • B.-A. Tenhagen
    • 2
    • 6
  • F. Regassa
    • 3
  • M. N. Kyule
    • 4
  • Y. Shiferaw
    • 5
  • T. Kassa
    • 3
  • M. P. O. Baumann
    • 4
  1. 1.Kenya Agricultural Research InstituteKatumani Research CentreMachakosKenya
  2. 2.Freie Universität BerlinFachbereich Veterinärmedizin, Tierklinikfür Fortpflanzung, AG Bestandsbetreuung and QuälitatsmanagementBerlinGermany
  3. 3.Faculty of Veterinary MedicineAddis Ababa UniversityDebrezeitEthiopia
  4. 4.Freie Universität Berlin, Fachbereich VeterinärmedizinInstitut für Parasitologie und Internationale TiergesundheitBerlinGermany
  5. 5.Ethiopian Agricultural Research OrganizationAddis AbabaEthiopia
  6. 6.Freie Universität Berlin, Tierklinik fuer FortpflanzungBerlinGermany

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