SVIBOR - Project code: 3-03-379

MINISTRY OF SCIENCE AND TECHNOLOGY

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tel.: +385 1 459 44 44, fax: +385 1 459 44 69
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Project code: 3-03-379

Evaluation of damage caused by mastitis in cows

Main researcher: KRZNARIĆ, MARKO (94223)

Assistants

KATIĆ, PETAR (124882)
LESKOVEC, DAMIR (84540)

Type of research: applied
Duration from: 01/01/95.

Papers on project (total): 2

Institution name: Veterinarski institut, Zagreb (48)
Department/Institute: Department of mastitis and milk quality
Address: Zagreb Savska c. 143

Communication: Phone: 385 (0)1 535-011; Fax: 385 (0)1 357-140

Summary: From 1992. till end of 1995 we carried out laboratory tests of 5145 collective (farm) milk samples. An increased somatic cell count was recorded in 956(18,6%) households. The count was divided in five categories: 250.000-1,000.000 cells per 1 ml milk, with the daily loss (reduced milk pick up) of 916 liters, or 0,6 liters per cow an average. According to the indicators, more marked decrease in milk production was in the category 250.000-500.000 somatic cells per 1 ml sample. Daily losses in that category were 0,4 liters of milk per animal and had a further falling the trend due to increase in somatic cell count. Doubled somatic cell count produced a drop in milk yield by 0,7 liters per cow and even more. Daily, monthly and yearly milk pick up reductions expressed in cash give more accurate picture of economic losses attributed to mastitis.

Keywords: farm milk sample, somatic cells, milk volume, milk losses

Research goals: Found the correlation between the volume of produced milk, somatic cell count and losses in milk production.

Other information about the project.


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Last update: 10/20/95
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