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Title: Effect of colostrum immunoglobulin concentration on immunity in Majorera goat kids
Authors: Rodríguez, C.
Castro, N. 
Capote, J. 
Morales-delaNuez, A.
Moreno-Indias, I.
Sánchez-Macías, D.
Argüello, A. 
Keywords: Passive Transfer
Serum, et al
Issue Date: 2009
Publisher: 0022-0302
Journal: Journal of Dairy Science 
Abstract: The aim of the research was to evaluate the effects of immunoglobulin G (IgG) colostrum concentration on goat kid immune status when the total amount of IgG fed was constant. Majorera goat kids (n = 56) were randomly assigned to 1 of 4 groups, and kids received 4 g of IgG per kg of body weight of atomized colostrum at 4 different IgG concentrations: 20 (AC-20), 40 (AC-40), 60 (AC-60), and 80 (AC-80) mg/mL. Blood samples were obtained on d 0, 1, 2, 3, 4, and 5 postpartum. Immunoglobulin G, IgA, and IgM plasma concentrations, apparent efficiency of absorption of IgG, plasma chitotriosidase activity, plasma complement activity, and plasma proteinogram were measured. Plasma IgG and IgM concentrations were highest on d 1 in AC-80 animals, and IgA plasma concentration was lower in AC-20 than in AC-80. The apparent efficiency of absorption was higher in AC-80 (24.4%) than in the other treatment groups (by an average of 13.8%). Chitotriosidase plasma activity on d 5 (1,488 nmol/mL per hour) was higher than on d 0 and 1 (average of 1,183 nmol/mL per hour). There were no effects of colostrum IgG concentration on complement activity and plasma protein distribution, but gamma-globulin and alpha-globulin were lower on d 0 than on d 1, 2, 3, 4, and 5. Increasing the immunoglobulin concentration in colostrum using atomized colostrum improves the immunoglobulin absorption at the same amount of immunoglobulin fed.
ISSN: 0022-0302
DOI: 10.3168/jds.2008-1586
Source: Journal of Dairy Science[ISSN 0022-0302],v. 92, p. 1696-1701
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