Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.

Copyright © Wydawnictwo Akademii Rolniczej we Wroclawiu, ISSN 1505-0297

Wielgosz-Groth Z. , Groth I. 2003. EFFECT OF THE UDDER HEALTH ON THE COMPOSITION AND QUALITY OF QUARTER MILK FROM BLACK-AND-WHITE COWS , EJPAU 6(2), #01.
Available Online: http://www.ejpau.media.pl/volume6/issue2/animal/abs-01.html

ABSTRACT

In the experiment involved 186 milk samples obtained from cow udder quarters at different state of mastitis. Milk derived from infected udder quarters was characterised by a statistically significant higher total protein percentage share and a higher pH value (p£ 0.05) by a lower lactose (p£ 0.01) and casein content (p£ 0.05) than milk of healthy quarters. The content of solids not fat indicated the upward tendency and the content of total solids and vitamin C was reduced. The clinical mastitis caused reduction of milk yield by 33.63% and its components – by 24.11 to 52.20%. Mastitis was most often induced by the strains of Staphylococcus aureus. Different cows reaction to mastitis was observed.

Key words: mastitis, udder quarters, milk composition, losses..

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