Somatic cell count in quarter foremilk of cows
from small herds with a high level of subclinical
mastitis

Fandrejewska, M

doi:10.22358/jafs/69860/1993

Cited by 3 publications

(2 citation statements)

References 6 publications

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“…Based on experimental data where milk somatic cell numbers of individual udder quarters were identified simulataneously by quantitative and semi-quantitative tests and data were compared consecutively, the CMT showed high sensitivity and specificity and the results gave high correlation values (r = 0.6 to 0.8) with those gained by quantitative tests (GALTON et al, 1979;OKELLO-UMA and GIBSON, 1979;BATRA and MCALLISTER, 1984;PEDNEKAR et al, 1992;FANDREJEWSKA, 1993;BRITO et al, 1997).…”

Section: Resultsmentioning

confidence: 99%

Influence of time of day the milk and season on the somatic cell count under Hungarian conditions

Baltay

2002

Arch. Anim. Breed.

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Abstract. This research indicates that the numerical value of the emptying of somatic cells as a result of the effect of time of day cannot be demonstrated and interval difference less than 2 hours between milking does not significantly influence the formation of somatic cells and their absolute quantity. Moreover it was confirmed that subclinical mastitis also occurs in individual udder quarters of healthy qualified cows producing bulk milk with somatic cell count below 400 thousand / ml. Udder quarter with mastitis was found in 15,2 % of cows of the tested stock realising this production, which can be considered a significant proportion and is a justification for eliminating and taking udder health care of these animals

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Section: Resultsmentioning

confidence: 99%

Influence of time of day the milk and season on the somatic cell count under Hungarian conditions

Baltay

2002

Arch. Anim. Breed.

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“…Similar observations were made by Bolgov et al (2002), who stated that besides factors such as age, production level and season of lactation, the occurrence of mastitis also depends on the udder characteristics. That mastitis is a great enemy of the dairy industry was shown by a research performed in Poland (Fandrejewska, 1993) during which it was shown that over 65.5% of milk samples collected at 77 dairy farms were infected with pathogenic microorganisms.…”

Section: Discussionmentioning

confidence: 99%

Relationship between various phases of milk ﬂow at mechanical milking system and the somatic cell count in cow’s milk

Mijić¹,

Knežević²,

Domačinović³

et al. 2005

J. Anim. Feed Sci.

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For the udder to remain healthy, milking period should be brief, and the optimal milk flow has to be reached as soon as possible and remain constant as long as possible. Research has shown that the lowest somatic cell count (SCC) for the Holstein cows logarithmic sec (LSCC = 3.03) were observed duration of increasing phase (dIP) = 0.3-0.6 min, and in those of the Simmental breed (LSCC=2.96) at dIP = 0.6-0.9 min. Furthermore, the prolongation of the plateau phase (dPP) of the milk flow curve have a beneficial effect on the udder health in both breeds of cows (LSCC=2.46 and 2.50). The dPP should be prolonged by shortening the duration of decreasing phase (dDP), since the lowest somatic cell counts in milk (LSCC=3.27 and 2.80) were observed when the dDP was shorter than 0.7 min.

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Epidemiological Studies on Subclinical Mastitis in Dairy cows in Assiut Governorate

Abdel-Rady¹,

Sayed²

2009

Vet. World

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In this investigation, some epidemiological studies were run on subclinical mastitis for totally 350 dairy cows of different breeds, ages and distributed in different villages in Assiut governorate, Assiut, Egypt, along a whole year (during the period from June 2006 till July 2007) through field screening surveys by using of the California mastitis test (CMT) for each quarter milk sample followed by bacteriological examination to identify the major causative agents of intramammary infection (IMI). The dairy cows were differed from the breed point of view as 230 Holstein Friesian breed and 120 native breed. Also, they were differed from the age point of view as a group of 95 cows aged from 2 to 4 years old and another group of 255 cow aged from 5 to 8 years old. All dairy cows were apparently healthy with clinically sound udder secreting apparently normal milk. All the cows lived nearly under the same conditions of breeding from the habitat, hygiene and feeding systems. The obtained results revealed that 67 cows (19.14%) had 80 infected quarters (5.71%). It was found that the most frequently major causative agents isolated were Staphylococcus aureus, Streptococcus agalactiae and Escherichia coli from the positive CMT samples with prevalence 52.5, 31.25 and 16.25%, respectively. With studying the breed factor, it was found Friesian breed was sensitive towards infection (20.43% at the cow level and 6.09% at the quarter level) than of native breed (16.67% at the cow level and 5% at the quarter level). It was also noticed that the prevalence of subclinical mastitis in hot weather as during summer (9.14% at the cow level and 2.64% at the quarter level) and during spring (4.86% at the cow level and 1.36% at the quarter level) was higher than in cold weather as during winter (2% at the cow level and 0.64% at the quarter level) and during autumn (3.14% at the cow level and 1.07% at the quarter level). In relation to age susceptibility, 5-8 years old cows (15.43% at the cow level and 4.36% at the quarter level) were susceptible than those of 2-4 years (3.71% at the cow level and 1.36% at the quarter level). The degree of quarter attack according to positive CMT was varied from 35 quarters (2.50%) showed degree (+++), to 45 ones (3.22%) showed degree (++), to 120 ones (8.57%) showed degree (+) and the rest (85.71%) showed degree (-). The obtained results threw the light on the epidemiology of subclinical mastitis in Assiut villages and provided an importance of the CMT for diagnosis of subclinical mastitis due to it is a reliable, easy, rapid and cheap tool helping in diagnosis and controlling the disease because it directs attention to individual mammary quarter that is secreting milk of high somatic cell content (SCC). Programs for control of subclinical mastitis may be planned around the routine examination of all lactating cows, and consequently early treatment can be applied towards positive cases rapidly for preventing their conversion towards clinical form among dairy cows and for protecting the herd health, milk hyg...

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Somatic cell count in quarter foremilk of cows from small herds with a high level of subclinical mastitis

Cited by 3 publications

References 6 publications

Influence of time of day the milk and season on the somatic cell count under Hungarian conditions

Influence of time of day the milk and season on the somatic cell count under Hungarian conditions

Relationship between various phases of milk ﬂow at mechanical milking system and the somatic cell count in cow’s milk

Epidemiological Studies on Subclinical Mastitis in Dairy cows in Assiut Governorate

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