Adaptation of
            <i>Escherichia coli</i>
            to the Bovine Mammary Gland

Bradley, Andrew J.; Green, Martin J.

doi:10.1128/jcm.39.5.1845-1849.2001

Cited by 115 publications

(95 citation statements)

References 17 publications

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“…Clearly, SCC data are used as a proxy for infection. In some situations quarters with low SCC may still harbor infection (see for example [7,12,18]). Only with repeated bacteriological culture an accurate diagnosis of cure of IMI can be made.…”

Section: Somatic Cell Count Patterns At Quarter Levelmentioning

confidence: 99%

Monitoring udder health and milk quality using somatic cell counts

et al. 2003

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-In this article the use of somatic cell counts for monitoring udder health and milk quality is discussed. Somatic cell count dynamics at quarter, cow, herd and population level are discussed and illustrated with examples. Quarter and cow somatic cell counts directly represent the inflammatory status of the mammary gland. Herd and population somatic cell count are related to the inflammatory process in individual cows but much more reflect the udder health status of the herd and the quality of the raw milk in the herd and the population. Application of monitoring tools in herd health management are illustrated using a case study. Understanding infection dynamics requires precise longitudinal data. Monitoring tools are required to find the areas of risk in the herd. It is inevitable that more complete udder health programs and monitoring systems are to be developed and implemented. These programs are necessarily dynamic and complex. Implementation of complete udder health programs should be accompanied by research efforts to further fine-tune these complete udder health control and monitoring programs. somatic cell count / mastitis / milk quality / monitoring / epidemiology

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Section: Somatic Cell Count Patterns At Quarter Levelmentioning

confidence: 99%

Monitoring udder health and milk quality using somatic cell counts

et al. 2003

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“…Although the infections due to E.coli are of short duration of <28 days (Todhunter et al, 1991), Many researchers reported the recurrent coliform mastitis and persistent infections due to E.coli in dairy animals. These studies concluded that the severity of mastitis due to E.coli is mainly related to host factors (Hill et al, 1979;Bradley & Green, 2001). In present study, E.coli was found prevalent at 15.04%, the days when SCC and mPCR were positive for SCM with the milk yield showing a negative trend.…”

Section: Resultsmentioning

confidence: 99%

Multiplex-PCR to detect pathogens and analysis of relation of age and stage of lactation of cows to sub-clinical mastitis

Rm¹,

Isloor²,

Rathnamma³

et al. 2016

JEBAS

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In this study, 225 milk samples were collected sequentially during 1 st to 88 th day from 25 HF cross cows in an organized farm. First five collections were obtained at a weekly interval (1,7,14,21 and 28 days) and later, fortnightly for two months (43, 58, 73 and 88 days). These milk samples were screened for Subclinical mastitis (SCM) by Somatic Cell Count (SCC). Further, multiplex-PCR for detection of S.aureus, E.coli, S.agalactiae, S.dysgalactiae and S.uberis was employed to detect the major bacterial pathogens. The SCM positivity was assessed based on criteria of SCC ≥ 500,000 cells /ml. The study revealed the high prevalence of variable SCM pattern in milking cows by SCC (73.33 %) in sequentially collected milk samples over a period of 88 days. No specific pattern of prevalence of SCM was observed during the study period. The prevalence of SCM was not influenced by the stage of lactation. In all the stages of lactation and age groups S. aureus, Streptococci and E.coli were detected with the predominance of S. aureus. The varied distribution of organisms in different stages of lactation did not influence the prevalence of SCM. Further, the high prevalence of SCM was noticed in aged cows. Among these, maximum number of milk samples (46 %, 52/113) revealing the presence of pathogens were obtained from cows in the age group 7-11 years. The multiplex PCR was found an easy and rapid method to detect the predominant pathogens causing SCM. The findings emphasize the need to control SCM through sequential monitoring of SCM through SCC, multiplex-PCR and proper managemental practices.

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“…Coliform bacteria mostly cause clinical form of mastitis. Environmental mastitis has formerly founded less than 10% of total mastitis cases, but there has been an increase in the occurrence of environmental mastitis more recently [38][39][40] mostly related with S. Uberis infection. This pathogen is most frequently linked with chronic mastitis, which does not respond to antibiotic treatment [31].…”

Section: Mastitis Pathogensmentioning

confidence: 99%

Bovine Mastitis and Its Therapeutic Strategy Doing Antibiotic Sensitivity Test

Mk¹

2017

Austin J Vet Sci & Anim Husb

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Mastitis is one of the most costly devastating diseases in the dairy industry. Bovine mastitis can be classified as clinical or subclinical based on clinical features of the disease. Subclinical mastitis occurrence is more prominent compared to clinical form and its prevalence is more than 20 to 50% of cows in given herds. Both forms cause substantial financial losses due to reduced milk yield, degraded milk quality, drug costs and veterinary expenses, early culling of cows and increased labour costs for the farmers. The chief causal organisms of mastitis are cell-walled bacteria, even though mycoplasma, algae and yeast have also been identified to cause mastitis. Numerous influencing factors like physiological, pathological, environmental or genetic factors may contribute to the occurrence of mastitis in dairy cattle. Presently, different types of antibiotics are prescribed for the treatment of mastitis. However, therapeutic success rate of mastitis is generally poor because of pathological changes in the udder parenchyma, mastitogenic bacterial and related factors, indiscriminate use of antibiotics and poor animal husbandry practices. These evidences focus the necessity for discovering completely newer strategies for treatment of mastitis. This review will highlight the key etiological agents and factors affecting the manifestation of mastitis, and the recent advancement of therapeutic strategies including application of antibiotic-based therapies by doing antibiotic sensitivity test as a prospective approach to prevent and control mastitis in dairy herds.

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Adaptation of Escherichia coli to the Bovine Mammary Gland

Cited by 115 publications

References 17 publications

Monitoring udder health and milk quality using somatic cell counts

Monitoring udder health and milk quality using somatic cell counts

Multiplex-PCR to detect pathogens and analysis of relation of age and stage of lactation of cows to sub-clinical mastitis

Bovine Mastitis and Its Therapeutic Strategy Doing Antibiotic Sensitivity Test

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