Prevalencija i čimbenici rizika povezani s neonatalnim proljevom goveda u teladi koja se hrani majčinim mlijekom u državi Veracruz, Meksiko

Bovine neonatal diarrhoea (BND) is a problem of great relevance in cattle herds, resulting in a decline in productivity and performance in production units, and causing great economic losses. The objective of the study was to determine the prevalence of BND in the state of Veracruz. In total, 300 lactating calves were sampled. Samples were analysed for Rotavirus, Coronavirus, Escherichia coli and Cryptosporidium spp. Differences between groups were determined by chi-square and risk factors were determined by Odds Ratio. The general prevalence of three geographical areas sampled was 85%. Regarding the analysed pathogens, Cryptosporidium spp. Had the highest prevalence with 76%, followed by E. coli with a prevalence of 42%. Two pathogens were present in coinfections with a 32% prevalence, unlike diarrhoea caused by one, three or four pathogens. Calves that consume standing water after birth present a higher risk of infection. It is necessary to establish sanitaryprogrammes to reduce the risk of infection, help to avoid economic losses, and improve the productivity of the herd. BND related pathogens Rotavirus, Coronavirus, Escherichia coli and Cryptosporidium spp. are present in the sampled areas. Neonatalni proljev goveda (BND) predstavlja problem od velikog značenja u stadima goveda, jer je posljedica smanjenje produktivnosti i učinkovitosti u proizvodnim jedinicama, prouzrokujčeći velike ekonomske gubitke. Cilj je ove studije bio utvrditi prevalenciju BND-a u državi Veracruz. Uzorkovano je 300 teladi hranjenih majčinim mlijekom. Uzorci su analizirani s komercijalnim kompletom Rainbow Calf Scours (rotavirus, koronavirus, Escherichia coli i Cryptosporidium spp.). Razlike između skupina su utvrđene metodom X2, a čimbenici rizika su utvrđeni omjerom izgleda (OR). Općenita prevalencija u tri uzorkovana geografska područja bila je 85 %. S obzirom na analizirane patogene, Cryptosporidium spp. je imao najveću prevalenciju sa 76 %, nakon čega je slijedila E. coli s prevalencijom od 42 %. Dva patogena bila su prisutna u koinfekcijama s 32 % prevalencije, za razliku od proljeva uzrokovanog jednim, tri i četiri patogena. U slučaju OR, otkriveno je da je telad koja konzumira stajaću vodu (OR=2,2) nakon teljenja u većem riziku od infekcije. Potrebno je utvrditi sanitarne programe za smanjenje rizika od infekcije, što bi uvjetolo smanjenju ekonomskih gubitka i poboljšanju produktivnost stada. Patogeni povezani s BND-om, rotavirus, koronavirus, Escherichia coli i Cryptosp