Influência do puerpério e da retenção dos anexos fetais no proteinograma de fêmeas bovinas da raça Holandesa, criadas no Estado de São Paulo / Influence of puerperium and retained fetal membranes on the proteinogram of Holstein cows raised in the State of São Paulo

AUTOR(ES)

João Paulo Elsen Saut

DATA DE PUBLICAÇÃO

2008

RESUMO

The aim of this study was to evaluate the influence of the puerperal period and retained fetal membranes on the proteinogram of Holstein cows. Two hundred ninety one blood samples were collected from cows through ninety days postpartum. In order to study the physiologic puerperium, blood samples from one hundred two clinically animals, divided in 9 experimental groups, following the chronogram, 0 -| 1º day; 1º -| 2º day; 2º -| 4º day; 4º -| 6º day; 6º -| 8º day; 8º -| 15º day; 15º -| 30º day; 30º -| 60º day; and, 60º -| 90º day postpartum were analyzed. To evaluate the fetal membranes retention influence, one hundred twenty nine blood samples from Holstein cows with this clinical condition, in moments1º -| 2º day; 2º -| 4º day; 4º -| 6º day; 6º -| 8º day; 8º -| 15º day; 15º -| 30º day; 30º -| 60º day; and, 60º -| 90º day postpartum were also analyzed and divided in 8 experimental groups. Total proteins concentration was determined by the Biuret method and protein electrophoresis were performed in acetate cellulose and in sodium dodecyl sulfate polyacrilamide gel (SDS-PAGE). The results showed a significant elevation in acute phase proteins in both conditions, physiologic puerperium and retained fetal membranes. Haptoglobin, ceruloplasmin and acid glycoprotein were increased in the partum stimuli and postpartum bacterial contamination in animals with physiologic puerperium. In the retained fetal membranes animals, those proteins significantly responded to the pos-partum bacterial contamination stimulli and retained fetal membranes, rising the proteins response time. The acid glycoprotein concentration evidenciated an acute inflammation induced by retained fetal membranes. In the animals with this condition, albumin behaved as negative acute phase protein, probably by several factors like hepatic or metabolic disturbance, deviation of the hepatic synthesis secondary to other proteins production, and bacterial toxins absortion, inflammation and infection. Sodium dodecyl sulfate poliacrilamide 10% gel (SDS-PAGE) electrophoresis with reducing sample aplication buffer, is not indicated for albumin and immunoglobulins behavior study. Acetate cellulose electrophoresis showed that physiologic puerperium did not influencied albumin concentration, but significantly did with alfa, beta and gammaglobulins.

ASSUNTO(S)

proteínas bovine bovinos retenção dos anexos fetais proteinogram retained fetal membranes proteins puerpério proteinograma puerperium

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