Related Experiment Videos
[Studies of immunity in mastitis in cows]
Veterinarno-Meditsinski Nauki
|January 1, 1977
Summary
This study investigated cow immunity against udder infections. Vaccinated cows and those recovering from infection showed specific antibodies, indicating protection against bacterial pathogens.
Area of Science:
- Veterinary Immunology
- Bacteriology
- Animal Health
Background:
- Bovine mastitis is a significant economic and animal welfare concern.
- Understanding specific antibody responses is crucial for developing effective preventative strategies.
- Previous research has explored various treatments and vaccines for mastitis.
Purpose of the Study:
- To determine the specific antibody titers in cows that recovered from spontaneous udder infections.
- To assess antibody levels in cows immunized with a polybacterial vaccine.
- To evaluate the protective immunity of the udder in vaccinated cows against bacterial infections.
Main Methods:
- Analysis of milk and blood sera for specific antibodies.
- Comparison of antibody titers between naturally infected and vaccinated cows.
- Monitoring udder resistance to bacterial infections post-vaccination.
Main Results:
- Specific antibody titers ranged from 1:80 to 1:1280 in both naturally infected and vaccinated cows.
- Vaccination during the eighth month of pregnancy induced variable but protective immunity.
- Vaccinated cows showed protection against specific bacterial species targeted by the vaccine during the subsequent lactation.
Conclusions:
- Specific antibodies play a role in protecting cows against common udder pathogens.
- Polybacterial vaccines can induce protective immunity against mastitis-causing bacteria.
- Vaccination strategies should consider the timing of administration relative to pregnancy and lactation.