Bovine mastitis producing bacteria identified
A UN researcher has identified agents which cause cow mammary gland inflammation in a research study involving 16 dairy farms and 1,800 animals., 08 de mayo de 2012 —
This project advocates the implementation of quality management systems, utilizing the “from the farm to the table” approach.
Masters of Science in Microbiology candidate Jenny Carolina Hernández Barrera carried out this scientific project in order to complete her thesis entitled “Bovine mastitis etiological agents antimicrobial sensitivity, and detection of mecA gen in Staphylococcus aureus strains of raw milk at farms in the province of Cundinamarca”.
Several never before recorded microorganisms have been identified in mastitis research in Colombia. These findings account for eight species of Staphylococcus spp. and four species of Streptococcus spp.
Particularly important was the discovery of a gene in Staphylococcus aureus strains which are resistant to some commonly used anti-microbial agents in both animals and humans.
According to Professor Martha Cecilia Suárez, thesis director, bovine mastitis may be the most costly veterinary problem for dairy farmers. This disease not only affects production and animal health, but also milk and by-product quality, which are essential aspects of improving competitiveness in the global market.
“This is the first time in Colombia that a research project has determined in detail all of the genera and species of infectious agents involved in bovine mastitis. In addition, antimicrobial sensitivity in relation to microorganism behavior while being treated by an antibiotic or antimicrobial agent, as well as their capability to resist such treatments was also analyzed.
It must be emphasized that this project has great implications in terms of public health. According to the World Health Organization (WHO), food supply chain control from the farm to the table is crucial. That is, to reasonably assure the absence of microbial agents, chemical substances or foreign bodies from the product at the first link (the farm), all the way to the final consumer.
According to Hernández Barrera, the samples were tested by means of conventional microbiological methods, according to National Mastitis Council (NMC) recommendations and confirmed via automated systems. Likewise, isolated agent antimicrobial sensitivity patterns were determined. The research was geared toward detecting the mecA gene in the aforementioned bacterial strains as a MRSA (Methicillin-resistant Staphylococcus aureus) indicator.
These applied research projects are crucial contributions to science. If for nothing else, solely for their purely academic contributions. In addition because many of these findings could translate into supply chain improvements. To understand the importance of controlling dangers from the source, i.e. those coming from the production stage, is essential in assuring healthy foodstuffs, improving competitiveness in the supply chain, and seeking entry into new markets.(Por: Fin/fga/sup/fgd