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Introduction Calves are born agammaglobulinemic and rely on colostrum ingestion to absorb essential immunoglobulins for defense against disease. 1 Adequate transfer of passive immunity (ATPI) through colostrum is dependent on; 1) whether the

Open access
in Journal of the American Veterinary Medical Association
in American Journal of Veterinary Research

adult horses. A possible explanation for the higher plasma AA concentration in foals during the first week of life may relate to AA intake via colostrum ingestion. Despite being unable to synthetize adequate amounts of AA, newborn calves were found to

Open access
in American Journal of Veterinary Research

A bsorption of maternal antibodies in neonatal calves is commonly evaluated by measuring immunoglobulin G (IgG) as it is the primary immunoglobulin in bovine colostrum. 1 Radial immunodiffusion assays (RID) are the reference test for measuring

Open access
in American Journal of Veterinary Research

& coauthor : Boaz Arzi David A. Martínez —Auburn University The titers, duration, and residual clinical protection of passively transferred nasal and serum antibodies are similar among beef calves that nursed colostrum from vaccinated or unvaccinated dams

Open access
in American Journal of Veterinary Research
Author:

& coauthor : Boaz Arzi David A. Martínez —Auburn University The titers, duration, and residual clinical protection of passively transferred nasal and serum antibodies are similar among beef calves that nursed colostrum from vaccinated or unvaccinated dams

Open access
in Journal of the American Veterinary Medical Association

than antibodies might mediate protection. Foals of mares vaccinated against R equi or VapA develop increased antibody activities against these antigens in their serum and colostrum that are transferred to foals, but their foals are not protected. 26

Open access
in American Journal of Veterinary Research

PVLs (0.051, 0.003, 0.050, and 0.033). Because it has been reported to take 3 to 5 weeks after infection to develop a BLV antibody titer detectable by an ELISA test, which was longer than the time to become qPCR positive in 6 of 8 colostrum

Open access
in American Journal of Veterinary Research

commercial colostrum replacement product (Calf’s Choice Total Gold; Saskatoon Colostrum Company). Each calf received a total of 200 g IgG within 4 hours of birth. All calves were housed in individual pens until transported (17 miles) within 2 to 5 days

Open access
in American Journal of Veterinary Research

intermediate hosts, including mice and rats, that make the oocysts available for the definitive hosts as well. 4 Other factors are presence of oocyst- contaminated grass, food containers, and drinking water; colostrum contaminated with tachyzoites; calving

Open access
in Journal of the American Veterinary Medical Association