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Research Rept. Biotechnical Fac. University of Ljubljana
Agricultural Issue.
Supplement
24


MANAGING SUPPORT FOR MASTITIS THERAPY

E. KLEINSCHROTHa)
a) Arbeitsgruppe zur Förderung von Eutergesundheit und Milchhygiene in den Alpenländern e.V. (AFEMA), Falkenweg 33, 87439 Kempten, Deutschland

Review paper
Language: English

ABSTRACT
Mastitis treatment intends to shorten duration of infections, to minimaze the frequency of new infections and to keep the presure of infectious agents low. Supporting managemental efforts assure the success of therapy by reducing the factors assisting mastitis. To give managing support to mastitis therapy and therefore improve raw milk quality means: you should check the environmental factors - correct the mistakes! The most important prophylactic and supporting measures when dealing with herd sanitation are: housing and feeding well adapted to the individual animal, competent milking with an hygienically and functionally correct milking machine, consequent hygiene management, right drying-up, culling of incurable cows just in time, avoiding mastitis by suckling in heifers, buying proven and udder healthy animals only. Keep the withdrawal times after treatment, check udder health in regular intervals and assure yourself of therapeutical success. Innovative techniques in milking are presented, methods are shown to check the hygiene status of the milking area and to judge quality of milking itself.

Key words: mastitis therapy, managing support, quality of raw milk.


RELATION BETWEEN MILK PRODUCTION, MILKABILITY AND MASTITIS

B. ŠOBARa) , S. KAVČIČ , D. KASTELIC , M. MIKLIČ
a)
Univ. of Ljubljana, Biotechnical Fac., Zootechnical Dept., Groblje 3, SI-1230 Domžale, Slovenia

Original scientific paper
Language: Slovene

ABSTRACT
The relationship between milk yield, milkability and somatic cell count was investigated with the aim to find a possible basis for selection of more resistant cows to mastitis. In the herd of 60 Holstein - Friesian cows during 3 years milk yield (electronic flowmeter) amd milking time (stop watch) was measured. Milkabilities were calculated and cell count were determined in milk samples (Fossomatic). The following results were established: at low milk yield and good milkability, cell count was the lowest (x = 205.000/ml); at high milk yield and poor milkability, cell count was low (x = 233.000/ml); at high yield and good milkability, cell count was higher (x = 260.000/ml) and, finally, at low milk yield and poor milkability, cell count was the highest (x = 281.000/ml). The differences between groups were too small to suggest any final conclusion.

Key words: milkability, milk yield, mastitis, cell count.


SOMATIC CELL COUNTS IN EWES MILK IN CORRELATION TO THE BACTERIOLOGICAL STATUS OF THE MAMMARY GLAND

A. PENGOVa), T. ZADNIK, M. POGAČNIK
a) Univ. of Ljubljana, Vet. fak., Gerbičeva 60, SI-1000 Ljubljana, Slovenia

Original scientific paper
Language: Slovene

ABSTRACT
The somatic cell counts of ewes' milk were determined by the Fossomatic method and compared with the bacteriological status of the mammary gland. Of 366 milk samples from uninfected udder halfs, 81.9% had SCC less than 250x103 cells/ml and 98.8% of 130 bacteriologically positive samples had a count higher than 250x103 cells/ml. Of the examined milk samples 26.2% showed positive bacteriology during the single sampling. The most frequent pathogens isolated from the milk samples were coagulase-negative staphylococci. In contrast to cows, in sheep this type of bacteria should be considered as pathogenic. Considering our results, 250x103 cells/ml should be the optimal threshold value, which could be regarded as the upper limit for normal SCC of ewes' milk.

Key words: sheep, mastitis, somatic cell counts.


ADVANTAGES OF A MONTHLY INDIVIDUAL COW SOMATIC CELL COUNT FOR SUBCLINICAL MASTITIS CONTROL PROGRAM

A. MIJOVIČa), A. PENGOV, Marija KLOPČIČ, T. ZADNIK
a) Veterinarska postaja Postojna, SI-6230 Postojna,
Slovenia

Original scientific paper
Language: Slovene

ABSTRACT
According to our hygienic milk quality regolatory objectives bulk farm milk somatic cell count must not on average exceed 500.000 cells/ml in three months’ period. It is necessary to introduce permanent udder health status control program to reach target values under 200.000 cells/ml. Program also provides taking individual samples once a month for individual cow somatic cell count which enables us to make number of udder health management decisions: eliminationof factors which can influence elevated somatic cell count and are not conected with mastitis, good screening for the identification of infected cows in herd, taking measurements against decreased risk factors for infection spread, ordering optimal treatment time especially for S. aureus infections where the draying off cow treatment is more efficient, evaluation of the response to the treatment and other measurements.

Key words: hygienic milk quality, subclinical mastitis, somatic cell count.


MILKING MACHINE AND MASTITIS

K. RABOLDa), G. SCHLAIß, H. GRIMM
a) Univ. of Hohenheim, FG "Milcherzeugung", D-70599 Stuttgart, FRG

Original scientific paper
Language: English

ABSTRACT
The paper reports the results of different investigations done by scientists of FG Milcherzeugung in the past. A short introduction about the defence mechanisms of the teat against invasion of pathogens shows the importance of the liner and its movement in mastitis prevention. Hamann' s model of "pressure changes and mastitis" - slightly changed - serves as starting point for discussion of the results of our investigations of influence of vacuum fluctuations on liner movement, liner movement and stripping, control of liner movement to decrease strippings without increasing machine on time. The discussion is supplemented by results of investigations of the role of milking systems in udderhealth of herds.

Key words: liner movement, strippings, milking systems and mastitis.

 


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University of Ljubljana Biotechnical Faculty