Agribusiness, Agriculture, Veterinary Medicine, Cassava, Garri, food security, Agritech and the Red Meat Value Chain.
Showing posts with label transboundry risk. Show all posts
Showing posts with label transboundry risk. Show all posts
Wednesday, March 16, 2016
PORCINE EPIDEMIC DIARRHOEA VIRUS AND FEED INGREDIENTS.
The porcine epidemic diarrhoea virus has been observed to survive in feed ingredients,this was demonstrated by some researchers who demonstrated this using a model as a point of study. The scientists used a model simulating shipment from China to the United States, as reported in BMC Veterinary Research. This is proof of concept suggesting that contaminated feed ingredients could serve as transboundary risk factors for PEDv, along with the identification of effective mitigation options.
The scientists stated that this study describes a model developed to evaluate the transboundary risk of PEDv-contaminated swine feed ingredients and the effect of two mitigation strategies during a simulated transport event from China to the US. They stated that Ingredients imported to the USA from China, including organic & conventional soybeans and meal, lysine hydrochloride, D-L methionine, tryptophan, Vitamins A, D & E, choline, carriers (rice hulls, corn cobs) and feed grade tetracycline, were inoculated with PEDv.
The control ingredients, and treatments (ingredients plus a liquid antimicrobial (SalCurb, Kemin Industries) or a 2% custom medium chain fatty acid blend) were tested. The model ran for 37 days, simulating transport of cargo from Beijing, China to Des Moines, IA, US from 23 December 2012 to 28 January 2013.
To mimic conditions on land and sea, historical temperature and percent relative humidity (% RH) data were programmed into an environmental chamber which stored all containers. To evaluate PEDv viability over time, ingredients were organised into 1 of 4 batches of samples, each batch representing a specific segment of transport.
Across control (non-treated) ingredients, viable PEDv was detected in soybean meal (organic and conventional), Vitamin D, lysine hydrochloride and choline chloride. In contrast, viable PEDv was not detected in any samples treated with the liquid antimicrobial or the medium chain fatty acid blend.
The United States Department of Agriculture (USDA) pointed out that PEDv might have entered the United States in May 2013 by ways of tote bags. The new research shows a different way of transmission, but it's not proven which road the infection took in 2013. What it does show is that there appears to be a risk related to some long-distance feed trade.
Ex
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