Udder preparation and its effect on udder cleanliness and milk quality

[摘要] 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.

[学科分类] 土木及结构工程学