C. Franciosi

Hemograma e proteínas do soro sanguíneo de bezerros Canchim-Nelore e da raça Holandesa nos primeiros 30 dias de vida

The influence of age, breed, and parity on hemogram and protein profile was evaluated in CanchimNelore and Holstein calves, born from primiparous or multiparous cows. Blood samples were taken from 12 to 24h after birth and at 7, 15, and 30 days of age, in which hemogram, total protein, albumin and globulin concentrations were determined. Lymphocyte count was the only parameter influenced by age of calf. Canchim-Nelore calves born from primiparous cows presented significant alterations in hemoglobin, globular volume, and mature neutrophil count; while calves from multiparous cows showed total protein, albumin, and globulins influenced by age. In Holstein calves from primiparous cows, the age influenced globular volume, mature neutrophil count, and albumin levels; while in calves from multiparous cows the age influenced on erythrocyte count, MCV, MCH, and mature neutrophil count. The alterations noted in total protein and albumin and globulin levels were not uniform among groups.

Influence of parity on concentrations of enzymes, proteins, and minerals in the milk of cows

Avaliou-se a influencia do numero de paricoes nos valores de alguns parâmetros bioquimicos e do perfil eletroforetico do soro lacteo de vacas de corte. Trinta e cinco vacas da raca Canchim foram alocadas em cinco grupos: vacas de primeira lactacao, segunda lactacao, terceira e quarta lactacoes, quinta lactacao e sexta lactacao. As amostras de secrecao lactea foram coletadas imediatamente apos (dia 0) e 1, 2, 7, 15 e 30 dias apos o parto. As concentracoes de gamaglutamiltranferase (GGT), proteina total, calcio, fosforo, magnesio e calcio ionizado foram avaliadas. A separacao eletroforetica das proteinas foi realizada em matriz de gel de poliacrilamida (SDS-PAGE). A atividade de GGT e as concentracoes de imunoglobulina G, calcio e fosforo nao foram influenciadas pelo numero de paricoes. As concentracoes de proteina total, calcio ionizado, magnesio imunoglobulina A, lactoferrina, β - lactoglobulina e α - lactoalbumina, foram influenciadas pelo numero de partos das vacas. A excecao dos teores de fosforo e α - lactoalbumina em poucos grupos, a concentracao d a s demais caracteristicas decresceu no decorrer do periodo de lactacao.