The contribution of the alternative pathway of complement activation to the capacity of
normal milk to deposit C3 fragments on bacteria was tested by attempting to block C3 …

The appearance of chemotactic fragments of complement at sites of infection is an important
component of innate immunity. The contribution of C5a, the most biologically active …

Titers of nine complement components, conglutinin and C3b-inactivator in bovine serum are
presented. C1, C4, C5, C7 and C9 titers were very high in adult bovine serum and C2 and …

In paired normal and mastitic whey samples of 31 cows, complement C 3 and bovine serum
albumin concentrations were determined by radial immunodiffusion. Haemolytic …

A relatively rapid method for the isolation of complement protein C4 from bovine plasma is
described. The method consists of DEAE Sephacel anion exchange chromatography of …

Several natural components abundant in the fluid phase of human breast‐milk have been
shown to be inhibitors of complement activation in vitro, particularly the classical pathway …

Methods were developed for titrating bovine C3b-inactivator, C2, C3 and C4 by non-
hemolytic means, and for assaying by hemolysis all the components of the bovine classical …

Bovine C5 has been isolated from fresh bovine serum by a five-step procedure:
polyethylene glycol precipitation, sequential ion-exchange chromatography on DEAE …

Hemolytic assays were used to compare alternate and classical C pathway activities in sera
obtained from clinically normal newborn dairy calves and their mothers at the time of …

Objective—To isolate and characterize factor I of the bovine complement system. Sample
Population—Serum obtained from the blood of beef cattle. Procedures—Serum samples …