%0 Journal Article
%T Estudio de factores de riesgo asociados a la infecci車n por Mycoplasma suis Study of risk factors associated with Mycoplasma suis infection
%A N.B. Pereyra
%A A.M. P谷rez
%A J.B. Messick
%A F.D. Cane
%J InVet
%D 2010
%I Universidad de Buenos Aires
%X Este estudio se propuso estimar la distribuci車n de la infecci車n por Mycoplasma suis en poblaciones de cerdos de Argentina e identificar factores de riesgo asociados. Se recolectaron 284 muestras de sangre de cerdos de diferentes categor赤as productivas en frigor赤ficos y granjas de las provincias de Santa Fe, C車rdoba y Buenos Aires. Amplificando el gen del ARNr 16S de M. suis a trav谷s de la reacci車n en cadena de la polimerasa (PCR), se calcul車 un porcentaje de infectados del 64%. Se estim車 adem芍s que no exist赤a asociaci車n estad赤sticamente significativa (p>0,1) entre un resultado positivo a la PCR y el sexo del animal muestreado, los antecedentes de anemia en la granja y las condiciones de alojamiento. Contrariamente se encontr車 asociaci車n significativa (p<0,1) con el origen geogr芍fico y la categor赤a productiva. Se estim車 que los cerdos de Buenos Aires y C車rdoba ten赤an m芍s probabilidades de ser PCR positivos que los de Santa Fe, mientras que los lechones y los cerdos de recr赤a ten赤an menos riesgo de infectarse que los animales de m芍s edad. Se concluye que el M. suis est芍 ampliamente distribuido en las poblaciones porcinas estudiadas del pa赤s. The objective of this study was to estimate the distribution of Mycoplasma suis infection in pig populations of Argentina and identify associated risk factors. Blood samples were collected from 284 pigs, including different productive categories of animals, in abattoirs and herds from Santa Fe, C車rdoba and Buenos Aires provinces. Based on the polymerase chain reaction (PCR) amplification of the M. suis 16S rRNA gene, it was estimated a proportion of infected animals of 0.64. Non-statistically significant (P>0.1) associations were found between gender, anemia herd history, and breeding conditions with PCR results. On the other hand, significant associations (P<0.1) were found between sanitary status to the infection and geographic origin and productive categories. It was estimated that pigs from Buenos Aires and C車rdoba provinces were at higher risk of being PCR-positive than pigs from Santa Fe, while piglets and post-weaning pigs were at lower risk of being PCR-positive than other categories. This study suggests that M. suis infection is widespread in the studied pig populations of Argentina.
%K Mycoplasma suis
%K PCR
%K Factores de riesgo
%K Cerdos
%K Mycoplasma suis
%K PCR
%K Risk factors
%K Pigs
%K Argentina
%U http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1668-34982010000200001