flutuação das variáveis séricas em cabras e estudo comparativo da absorção de anticorpos em cabritos recém-nascidos utilizando colostro bovino e caprino fluctuation of serum variables in goats and comparative study of antibody absorption in new-born kids using cattle and goat colostrum

Clicks: 292
ID: 153172
2009
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Abstract
Objetivou-se determinar a flutuação no nível de anticorpos séricos em cabras nos períodos pré e pós-parto e a eficiência do processo de aquisição de imunidade passiva em cabritos recém-nascidos utilizando colostros bovino e caprino, visando à avaliação de uma alternativa de manejo de colostro. Foram utilizadas 18 cabras e suas respectivas crias, num total de 33 animais. A coleta de sangue das cabras foi iniciada 45 dias antes da data prevista para o parto e foi realizada em intervalos de cinco dias até o 5º dia após o parto. Os cabritos foram distribuídos em dois grupos: um grupo recebeu colostro caprino e o outro colostro bovino. As coletas de sangue foram feitas às 0, 12, 24 e 48 horas e aos 5, 10, 15, 17, 20, 25, 30, 35, 40, 50 e 60 dias de vida. Foram analisadas as concentrações séricas de proteína total e imunoglobulinas, além da concentração de imunoglobinas no colostro. O delineamento experimental foi o inteiramente casualizado e as variáveis séricas analisadas como medidas repetidas. A ausência de queda na concentração sérica de proteínas totais e imunoglobinas no período pré-parto indica que a mobilização de anticorpos para glândula mamária ocorre em concentrações que permitem o animal manter essas variáveis sem grandes alterações. No grupo que recebeu colostro bovino, a data de concentração máxima de proteínas totais (7,16 ± 0,28 g/dL) foi verificada às 48,68 ± 0,70 horas de vida e a de imunoglobinas, às 48,75 ± 0,73 horas, com média de 37,56 ± 2,38 unidades ZST (turvação por sulfato de zinco). No grupo que recebeu colostro caprino, os valores máximos de proteínas totais e imunoglobinas séricas ocorreram mais tardiamente, aos 20,05 ± 1,36 e 20,11 ± 1,72 dias de vida, com médias de 5,91 ± 0,22 g/dL e 28,17 ± 2,05 unidades ZST, respectivamente. O colostro caprino pode ser substituído pelo colostro bovino, que promove melhor aquisição inicial de imunoglobulinas aos neonatos.
The objective of this study was to determine the fluctuation of serum antibodies in goats in the period before and immediately after kidding and the passive immunity acquisition efficiency in kids fed bovine and goat colostrum, to assess an alternative for colostrum management. Eighteen goats and their offspring were used in a total of 33 animals. Goat blood samples started to be collected 45 days before the predicated kidding date, at five-day intervals until the 5th day post kidding. The kids were distributed in two groups: one group received goat colostrum and the other cattle colostrums. Blood collections were made 0, 12, 24 and 48 hours, and at 5, 10, 15, 17, 20, 25, 30, 40, 50 and 60 days of age. The serum concentration of total protein (TP) and immunoglobulins (Ig), and the colostrum IgG concentration were analyzed. A randomized complete design was used and the serum variables were analyzed as repeated measurements. The absence of fall in TP and Ig serum concentration in the pre partum period, indicated that the mobilization of serum antibodies to mammary gland occurred in concentrations that allow the animals to keep these variables without great alterations. In the group that received cattle colostrum, the highest concentration data for TP was observed at 48.68 ± 0.79 hours after birth, with mean of 7.16 ± 0.28 g/dL, and the highest concentration date for Ig at 48 ± 0.73, with mean of 37.56 ± 2.38 ZST units (zinc sulfate turbidity). In the group that received goat colostrum, the maximum values for serum TP and Ig occurred later, at 20.05 ± 1.36 and 20.11 ± 1.72 days after birth, with means of 5.91 ± 0.22 g/dL and 28.17 ± 2.05 ZST units (zinc sulphate turbidity), respectively. Goat colostrum can be substituted by cattle colostrums, that promotes better initial immunoglobulin acquisition by the neonates.
Reference Key
lima2009revistaflutuao Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Anali Linhares Lima;Patricia Pauletti;Ivanete Susin;Raul Machado-Neto
Journal european journal of lipid science and technology
Year 2009
DOI
10.1590/S1516-35982009001100021
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009001100021
Keywords
immunoglobulin

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