Artículos de revistas
Influência da mastite subclínica estafilocócica sobre as características físico-químicas e celulares do leite
Fecha
1996-01-01Registro en:
Pesquisa Veterinaria Brasileira, v. 16, n. 1, p. 35-38, 1996.
0100-736X
2-s2.0-0030522590
7011292912609937
7910227103761592
Autor
Universidade Federal de Goiás (UFG)
Universidade Estadual Paulista (Unesp)
Institución
Resumen
One hundred twenty-six milk samples from 63 apparently healthy cows, but positive in the California Mastitis Test were submitted to determinations of pH, acidity, density, butter-fat, total solids, non-fat solids, cryoscopic point, caseine level, chloride level and polymorphonuclear leukocytes. Forty-one cows were infected by coagulase-positive Staphylococcus and 22 by coagulase-negative Staphylococcus. The results obtained in the milk sample analysis from the healthy quarters and infected by coagulase-positive Staphylococcus showed variations of all constituents investigated. However only the pH values (F=4.17*) and the polymorphonuclear leukocytes (F=11.35**) showed significant differences. On the other hand, between the milk samples from healthy quarters and infected quarters by coagulase-negative Staphylococcus, only the polymorphonuclear leukocytes (F=16.29**) showed significant differences.