Colostral transfer of antibodies specific for Hypoderma lineatum proteins

Abstract

Antibodies to Hypoderma lineatum were transferred to calves via colostrum. The antibodies transferred in the colostrum demonstrated specificity to all the H. lineatum first-instar proteins which were resolved by non-denaturing polyacrylamide gel electrophoresis and were capable of mediating a Type I hypersensitivity reaction. The kinetic decline of colostrum-acquired antibodies, the effect upon development of an autologous humoral response to H. lineatum and the host or parasite protective role of these antibodies are discussed.

Epidemiological survey of hypodermosis in western Spain

“…The animals were divided into two groups according to age: group 1 consisted of animals aged six to 12 months old and group 2 of the older animals. Residual colostral antibodies should have disappeared by six months of age (Pruett and Temeyer 1989, Martínez‐Gómez and others 1991), and as a result the animals in group 1 with a positive diagnosis can be considered to have been previously uninfected. Animals more than one year old have already experienced a complete grazing season and many of them could therefore have been reinfested.…”