A Study on Work Efficiency in Udder Preparation of Milking Cows

Methods of Quantitative Measuring of Solided Things on the Udders

Abstract

To establish a method of evaluatinon work amount in udder preparation, effectiviness of udder cleanning estimated by quantitive measurement of solid matter which would be removed during udder preparation before machine attachment was investigated. The solid matter on the udder were defined as the dirts come mostly from the dungs of cows in the present study.
Various kinds in degree of dry matter content and amounts of dung were dissolved in the warm water and used as the simulation of washed water to analyse the relationship between amunts of dirts on the udder and the degree in contamination of washed water.
It was found that the weight of dung removed from udder can be estimated by (1) dry matter left on the filter after filtration of the washed water and (2) COD of the filtrate of the washed water.