Open AccessCARACTERÍSTICAS FÍSICO-QUÍMICAS E CELULARIDADE DO LEITE DE OVELHAS SANTA INÊS EM DIFERENTES ESTÁGIOS DE LACTAÇÃO
Author(s) -
Maiara Garcia Blagitz,
Camila Freitas Batista,
Viviani Gomes,
Fernando Nogueira de Souza,
Alice Maria Melville Paiva Della Libera
Publication year - 2013
Publication title -
ciência animal brasileira
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.174
H-Index - 10
eISSN - 1809-6891
pISSN - 1518-2797
DOI - 10.5216/cab.v14i4.14028
Subject(s) - lactose , somatic cell count , lactation , total dissolved solids , chemistry , zoology , milk protein , andrology , food science , milk fat , biology , ice calving , medicine , environmental engineering , engineering , genetics , linseed oil , pregnancy
The purpose of the present trial was to investigate the influence of lactation stage on milk cellularity and physicochemical characteristics. Thus, 143 milk samples from 33 Santa Ines ewes negative in the bacteriological examination and without any alteration in the strip cup test were used to determine the automatic and microscopic somatic cell count (SCC), and the fat, lactose, protein and total solids content. The results of the present study showed an augment in the SCC and in the fat and protein content, besides a reduction in lactose content at the last lactation stage. Otherwise, no alteration was observed in the total solids content during the lactation period. This study pointed out to a significant correlation between the automatic SCC and the microscopic SCC (r = 0.80), percentage of polymorphonuclear leukocytes (r = 0.45), percentage of mononuclear leukocytes (r = -0.45), lactose (r = - 0.44), protein (r = 0.37) and fat (r = 0.30) content. Nevertheless, significant correlation between the automatic SCC and the total solids content was not observed