A microbial adherence inhibitor specific to
lactic acid producing microorganisms, in the form of
fowl egg antibodies is disclosed, along with the method of making it and methods of using it. The inhibitor functions by substantially preventing the attachment or adherence of colony-forming immunogens in the
rumen and intestinal tracts of host food animals. The inhibitor is made by inoculating female birds with the
immunogen, allowing time for an immune response in the female bird and then harvesting the eggs that contain antibodies to the
immunogen. The egg contents can be dried or used as a liquid and added to the feed or water for the host animals. Dependent upon the particular
immunogen with which the female bird is inoculated, the egg
antibody is used to promote the growth of food animals by improving feed conversion rates by decreasing the
lactic acid production caused by the presence of certain colony-forming organisms in the animals, and to substantially reduce or eliminate the incidence of species that have been linked to very high production of
lactic acid which can result in reduced performance and in acute situations, dangerously low
rumen pH levels. When high levels of lactic acid are present in the
rumen, rumen ulcers can form. When rumen ulcers are present other
bacteria such as
Fusobacterium necrophorum can escape the rumen and cause liver abscesses or
laminitis, which further reduce feed conversion efficiency. Colony forming immunogens such as
Streptococcus bovis (a major lactic acid producer) and
Fusobacterium necrophorum can both be targeted by antibodies to enhance feed efficiency.