Total immunoglobulin concentration in colostrum produced by dairy cows in Costa Rica.

 

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書目詳細資料
作者: Elizondo-Salazar, Jorge Alberto
格式: artículo original
狀態:Versión publicada
Fecha de Publicación:2015
實物特徵:The objective of this study was to determine the concentration of total immunoglobulins (Ig) in colostrum produced by dairy cows and establish the effect that breed and parity can have on Ig concentration. The data presented correspond to determinations of concentration of total Ig determined by a colostrometer in 537 colostrum samples obtained between the year 2010 and 2012, during the months of August to November in 50 dairy farms in the provinces of San José, Alajuela, Heredia and Cartago. Cow breeds were classified into Holstein, Jersey, HolsteinxJersey and other. Farm size ranged from 10 to 300 milking cows. For the purposes of this study, good quality colostrum was considered when Ig concentration was ≥ 50 mg/ml. Immunoglobulin concentration ranged from 10 to 140 with an average of 85 mg/ml. Of all the samples analyzed, 13.2% had an inadequate concentration of Ig. When considering breed effect on Ig concentration, no significant differences were found. Parity number significantly influenced Ig concentration and it was found that Ig concentration increases linearly with parity number. The information collected in this study indicates that Ig concentration in colostrum is good and that failure of passive transfer of immunity could be due to other factors such as the volume of colostrum consumed and the time between birth and the first feeding of colostrum.
País:Portal de Revistas UCR
機構:Universidad de Costa Rica
Repositorio:Portal de Revistas UCR
語言:Español
OAI Identifier:oai:portal.ucr.ac.cr:article/16890
在線閱讀:https://revistas.ucr.ac.cr/index.php/agromeso/article/view/16890
Palabra clave:terneras
ganado de leche
salud animal
inmunidad pasiva
calves
dairy cattle
animal health
passive immunity