Udder preparation and its effect on udder cleanlenees and milk quality

الملخص EN

Total bacterial count was performed in eighty milk samples and eighty udder swabs collected from 20 cows, to compare the effect of treating udders with wet towel washing (55-60C0), followed by paper towel drying; three concentrations of Iodophre and Hibitane followed by paper towel drying and two concentrations of potassium permanganate followed by paper towel drying with non-treated udders .Results showed that Log10 of CFU/ swab of untreated udders was significantly (p≤ 0.05) differ from those swab samples when udder was treated with wet towel washing (55-60C0), followed by paper towel drying.

By using iodophor, there was in asignificant (p≤ 0.05) reduction in the Log10 of CFU/ swab after udder treatment with all used concentrations of iodophor, and there was also proportional reduction in the Log10 CFU/ swab with each increase in the Iodophor concentration (0.1:100, 0.5:100 and 1:100) respectively.

The same picture was gained by using Hibitane at concentrations of 0.25%, 0.5% and 1% as Iodophre.

Potassium permanganate treatments with its two concentrations showed significant differences in Log10 /swab of udder before and after treatments and between its two concentrations 0.5:1000 and 1:1000.Total bacterial count of milk samples were a mirror of swab samples.

From results it is evident that chemical disinfectants or hot water were effective in reducing udder contamination before milking.