Elements of dairying (1903) Elements of dairying elementsofdairyi00deck Year: 1903 Contamination of Milk. 71 The cow may have been lying down in filth, and during the agitation of milking the dust and hairs will be dis- lodged and fall into the milk. Each particle of dust, and •each hair may have numerous bacteria clinging to it. The milker's hands and clothes may also be a source of infection. After the milk is in the pail, dirt in the crevices may contaminate it with bacteria, and as it goes on its way through different vessels, it may receive in- creasing contributions of germs. Milk deliv
Elements of dairying (1903) Elements of dairying elementsofdairyi00deck Year: 1903 Contamination of Milk. 71 The cow may have been lying down in filth, and during the agitation of milking the dust and hairs will be dis- lodged and fall into the milk. Each particle of dust, and •each hair may have numerous bacteria clinging to it. The milker's hands and clothes may also be a source of infection. After the milk is in the pail, dirt in the crevices may contaminate it with bacteria, and as it goes on its way through different vessels, it may receive in- creasing contributions of germs. Milk delivered in open vessels in the cities, gets contributions from the dust blown about the streets. Several hundred bacteria have been on a single hair. IMPROPER PAILS.
Size: 1440px × 1389px
Photo credit: © Bookworm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: archive, book, drawing, historical, history, illustration, image, page, picture, print, reference, vintage
