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Demographics of cattle positive for Mycobacterium avium subspecies paratuberculosis by faecal culture, from submissions to the Cork Regional Veterinary Laboratory.

Richardson E, Mee J, Sánchez-Miguel C, Crilly J, More S - Ir Vet J (2009)

Bottom Line: Although the study area is restricted, it includes the most intensive (and economically-important) dairy region in Ireland.The demographics of JD infection from the study area are in agreement with international reports.It is hoped this work may contribute to the development of a surveillance strategy for MAP by regional veterinary laboratories.

View Article: PubMed Central - HTML - PubMed

Affiliation: Moorepark Dairy Production Research Centre, Teagasc, Fermoy, Co, Cork, Ireland. richardson.esther@gmail.com.

ABSTRACT
The demography of bovine infections caused by Mycobacterium avium subspecies paratuberculosis (MAP) in Ireland is poorly defined. The objective of this study was to describe the demographics of cattle positive to MAP on faecal culture, based on submissions to the Cork Regional Veterinary Laboratory (Cork RVL) from 1994 to 2006. The study focused on all available faecal samples from adult cattle with non-responsive chronic diarrhoea that were submitted by private veterinary practitioners to Cork RVL for MAP culture. For each MAP-positive by faecal culture animal, data were collated from Cork RVL and Cattle Movement Monitoring Scheme (CMMS) records. Johne's disease (JD) was confirmed in 110 animals from 86 herds by the Cork RVL between 1994 and 2006, with a rate of positive cases between 15% and 18% over last four years of the study. Two breeds (Holstein/Friesian or Limousin) made up 78% of submissions. Movements were assessed for the 57 study animals with available movement information, 90% died within one year of the test and 26% tested positive in the herd they were born into. The study provides preliminary information about movement trends and demographics of animals with MAP positive submissions. Although the study area is restricted, it includes the most intensive (and economically-important) dairy region in Ireland. The demographics of JD infection from the study area are in agreement with international reports. Further work is required to determine demographic trends, incidence and prevalence of JD throughout Ireland. It is hoped this work may contribute to the development of a surveillance strategy for MAP by regional veterinary laboratories.

No MeSH data available.


Related in: MedlinePlus

The total number of submissions to the Cork RVL for MAP faecal culture, and the number and percentage of submissions that were MAP-positive, by year between 1994 to 2006. Percentage positive from total are given from 1997 to 2006.
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Figure 2: The total number of submissions to the Cork RVL for MAP faecal culture, and the number and percentage of submissions that were MAP-positive, by year between 1994 to 2006. Percentage positive from total are given from 1997 to 2006.

Mentions: At the Cork RVL, reliable records on the total number of submissions for MAP culture and the number of MAP-positive submissions were available from 1997 to 2006 and 1994 to 2006, respectively. From 1997 to 2006, 547 faecal samples were submitted to Cork RVL for MAP faecal culture (Figure 1). Total numbers of faecal samples submitted each year for testing has steadily increased (Figure 2). From 1994 to 2006, 110 MAP-positive samples were detected (Figure 1): the first in 1994. The percentage of submissions per year that were MAP-positive from 1997 until 2006 and fluctuated between 8% and 30% with a mean annual percentage of 18%. Less variation occurred from 2003 through to 2006 where the mean annual percentage of positive submissions was 17% with a range of 15-18% (Figure 2).


Demographics of cattle positive for Mycobacterium avium subspecies paratuberculosis by faecal culture, from submissions to the Cork Regional Veterinary Laboratory.

Richardson E, Mee J, Sánchez-Miguel C, Crilly J, More S - Ir Vet J (2009)

The total number of submissions to the Cork RVL for MAP faecal culture, and the number and percentage of submissions that were MAP-positive, by year between 1994 to 2006. Percentage positive from total are given from 1997 to 2006.
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3113751&req=5

Figure 2: The total number of submissions to the Cork RVL for MAP faecal culture, and the number and percentage of submissions that were MAP-positive, by year between 1994 to 2006. Percentage positive from total are given from 1997 to 2006.
Mentions: At the Cork RVL, reliable records on the total number of submissions for MAP culture and the number of MAP-positive submissions were available from 1997 to 2006 and 1994 to 2006, respectively. From 1997 to 2006, 547 faecal samples were submitted to Cork RVL for MAP faecal culture (Figure 1). Total numbers of faecal samples submitted each year for testing has steadily increased (Figure 2). From 1994 to 2006, 110 MAP-positive samples were detected (Figure 1): the first in 1994. The percentage of submissions per year that were MAP-positive from 1997 until 2006 and fluctuated between 8% and 30% with a mean annual percentage of 18%. Less variation occurred from 2003 through to 2006 where the mean annual percentage of positive submissions was 17% with a range of 15-18% (Figure 2).

Bottom Line: Although the study area is restricted, it includes the most intensive (and economically-important) dairy region in Ireland.The demographics of JD infection from the study area are in agreement with international reports.It is hoped this work may contribute to the development of a surveillance strategy for MAP by regional veterinary laboratories.

View Article: PubMed Central - HTML - PubMed

Affiliation: Moorepark Dairy Production Research Centre, Teagasc, Fermoy, Co, Cork, Ireland. richardson.esther@gmail.com.

ABSTRACT
The demography of bovine infections caused by Mycobacterium avium subspecies paratuberculosis (MAP) in Ireland is poorly defined. The objective of this study was to describe the demographics of cattle positive to MAP on faecal culture, based on submissions to the Cork Regional Veterinary Laboratory (Cork RVL) from 1994 to 2006. The study focused on all available faecal samples from adult cattle with non-responsive chronic diarrhoea that were submitted by private veterinary practitioners to Cork RVL for MAP culture. For each MAP-positive by faecal culture animal, data were collated from Cork RVL and Cattle Movement Monitoring Scheme (CMMS) records. Johne's disease (JD) was confirmed in 110 animals from 86 herds by the Cork RVL between 1994 and 2006, with a rate of positive cases between 15% and 18% over last four years of the study. Two breeds (Holstein/Friesian or Limousin) made up 78% of submissions. Movements were assessed for the 57 study animals with available movement information, 90% died within one year of the test and 26% tested positive in the herd they were born into. The study provides preliminary information about movement trends and demographics of animals with MAP positive submissions. Although the study area is restricted, it includes the most intensive (and economically-important) dairy region in Ireland. The demographics of JD infection from the study area are in agreement with international reports. Further work is required to determine demographic trends, incidence and prevalence of JD throughout Ireland. It is hoped this work may contribute to the development of a surveillance strategy for MAP by regional veterinary laboratories.

No MeSH data available.


Related in: MedlinePlus