X
XLinkedinWhatsAppTelegramTelegram
0
Read this article in:

Individual risk factors for M. hyo infections in suckling pigs at the age of weaning

Therefore, the aim of the present study was to investigate the frequency of M. hyopneumoniae infections in suckling pigs of endemically infected herds.

18 February 2014
X
XLinkedinWhatsAppTelegramTelegram
0

In recent years, the occurrence and the relevance of Mycoplasma hyopneumoniae infections in suckling pigs has been examined in several studies. Whereas most of these studies were focused on sole prevalence estimation within different age groups, follow-up of infected piglets or assessment of pathological findings, none of the studies included a detailed analysis of individual and environmental risk factors. Therefore, the aim of the present study was to investigate the frequency of M. hyopneumoniae infections in suckling pigs of endemically infected herds and to identify individual risk factors potentially influencing the infection status of suckling pigs at the age of weaning.

The animal level prevalence of M. hyopneumoniae infections in suckling pigs examined in three conventional pig breeding herds was 3.6% (41/1127) at the time of weaning. A prevalence of 1.2% was found in the same pigs at the end of their nursery period. In a multivariable Poisson regression model it was found that incidence rate ratios (IRR) for suckling pigs are significantly lower than 1 when teeth grinding was conducted (IRR: 0.10). Moreover, high temperatures in the piglet nest during the first two weeks of life (occasionally >40°C) were associated with a decrease of the probability of an infection (IRR: 0.23-0.40). Contrary, the application of PCV2 vaccines to piglets was associated with an increased infection risk (IRR: 9.72).

Since single infected piglets are supposed to act as initiators for the transmission of this pathogen in nursery and fattening pigs, the elimination of the risk factors described in this study should help to reduce the incidence rate of M. hyopneumoniae infections and thereby might contribute to a reduced probability of high prevalences in older pigs.

Nathues H, Doehring S, Woeste H, Fahrion AS, Doherr MG, grosse Beilage E. Individual risk factors for Mycoplasma hyopneumoniae infections in suckling pigs at the age of weaning.Acta Vet Scand. 2013 Jun 3;55:44. doi: 10.1186/1751-0147-55-44.

Article Comments

This area is not intended to be a place to consult authors about their articles, but rather a place for open discussion among pig333.com users.
Leave a new Comment

Access restricted to 333 users. In order to post a comment you must be logged in.

You are not subscribed to this list pig333.com in 3 minutes

Weekly newsletter with all the pig333.com updates

Log in and sign up on the list

You are not subscribed to this list Swine News

Swine industry news in your email

Log in and sign up on the list