Microbial contamination of harvested colostrum on Czech dairy farms

The objective of this study was to perform a quantitative and qualitative evaluation microbial contamination harvested colostrum on 39 Czech dairy farms. identified the proportion samples that met recommended goals for total plate count (TPC), coliform (TCC), gram-negative noncoliform (NCC), evaluated effect farm, breed, parity, season year, time calving, volume these 3 microbiological parameters. Colostrum from cows (n = 1,241; 57.6% Fleckvieh, 42.4% Holstein breed) were collected farms between autumn 2015 spring 2017. after first milking directly buckets. In 155 out 1,241 (26 farms, 6 each, except 1 farm), species microorganisms obtained by culture determined, findings classified into 4 groups according probable source as follows: (1) normal inhabitants bovine skin mucosa, (2) fecal contaminants, (3) environmental (4) potential gram-positive mammary pathogens. Our results showed heavy (TPC median 408,000 cfu/mL; TCC 200 NCC 80 cfu/mL). Only 28.4% requirement TPC (<100,000 cfu/mL), 88.2% (<10,000 86.0% (<5,000 Among tested factors, we found farm had significant all parameters, an (the highest in <3.0 L colostrum), (higher summer than winter; higher winter). most microbes isolated belonged fecal, or contaminants (i.e., 82.6%, 81.9%, 75.5% samples, respectively). Potential pathogens 13.5% samples. Escherichia coli 9.0% Streptococcus uberis parauberis each 5.2% high Therefore, better hygiene sanitation around harvest should be addressed farmers.