Izvorni znanstveni članak

Influence of udder sanitation on hygienic quality of cow milk

Željko Pavičić ; Department of Animal Hygiene, Environment and Ethology, Faculty of Veterinary Medicine, University of
Marijan Cergolj ; Clinic for Obstetrics and Reproduction, Faculty of Veterinary Medicine, University of Zagreb, Zagreb
Tomislav Balenović ; Department of Animal Husbandry, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
Anamaria Ekert-Kabalin ; Department of Animal Husbandry, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
Hrvoje Valpotić ; Department of Animal Nutrition, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia

Sažetak

The aim of this investigation was to determine the significance of udder disinfection before and after milking on the hygienic quality of fresh raw milk in dairy cowherds subject to primary udder hygiene with water. The research was conducted on 4 farms with differing hygienic milk quality, during which three farms (experimental groups) were selected for the assessment of udder disinfection before and after milking and the fourth farm (control group) continued to implement primary hygiene with water in the preparation of udders before milking. The disinfection in the experimental group prior to milking was performed by immerging the
teats in a special cup containing active foam, based on surface active compounds, organic acids and hydrogen peroxide and after milking by an agent containing skin care substance and 1.94% linear dodecyl-benzene sulphonic acid (LDBS). Seven individual samplings of milk were performed on each cow in a period of 3 months for determining microorganisms and somatic cells. The samples were delivered to the laboratory, where somatic cell and microorganism count/mL of milk were established with the use of standard methods. According to the data from three experimental groups, a slight decrease in the average somatic cell count and a statistically significant decline of average microorganism count (P<0.01; P<0.05) were recorded in fresh
raw milk. Unlike this, the somatic cell count in the control group continually increased, reaching the level of statistical significance (P<0.01), and the microorganism count showed slight oscillations. It was concluded that a change from primary udder hygiene with water to teat disinfection before and after milking significantly decreases average somatic cell and microorganism counts in fresh raw milk and hence improves hygienic milk quality over a certain time period.

Ključne riječi

cow; udder; sanitation; microorganisms; somatic cells; milk

Hrčak ID:

24141

URI

https://hrcak.srce.hr/24141

Datum izdavanja:

21.4.2008.

Podaci na drugim jezicima: hrvatski

Posjeta: 1.926 *