In brief, 200 µl volume of nutrient medium was poured in each well and inoculated with 20 µl inocula of 48 h grown cultures.
For this purpose, serial binary dilutions of the tested compounds (ranging between 0.01 and 5 μg/mL) were performed in a 200-μL volume of nutrient broth/YPG, and each well was seeded with 20 μL of microbial inocula of 0.5 McFarland density.
The inoculum containing the species was added by volume (after removing an equivalent volume of nutrient medium).
Every second day the full volume of nutrient medium, 1.5 ml per well, was replaced with fresh medium.
Every second day, the full volume of nutrient medium, 1.5 ml per dish, was replaced with fresh medium.
This may be because the long-chambered design contained a larger volume of nutrient-rich cell culture media than the short-chambered design.
The volume of nutrient solution added to the culture dish was based on the materials' weight, which could not exceed 2/3 volume of the dish in order to ensure that supplement and nutrition demand were basically the same.
The full volume of nutrient medium, 1.5 ml per dish, was replaced with fresh medium every second day (with the exception of the one-day treatment experiments below) during the culturing period.
The presence of Campylobacter was determined by incubating the remaining enrichment broth microaerobically (2% H2, 5% O2, 5% CO2, balance N2) 100-ml volumes of nutrient broth base (Mast, Bootle, UK) with 5% horse blood, growth supplement (Mast Selectavial SV61), amphotericin (2 µg/ml), cefoperazone (15 µg/ml) and trimethoprim (10 µg/ml) at 37°C.
Depending on the level of degradation of agricultural land, well designed, located and managed forestry can reduce the volume of sediment, nutrients and salt volumes transported into river systems, although not necessarily their concentrations.
