Page 32 - Sep302021

UNDERSTANDING VACCINATION The Midwest Cattleman · September 30, 2021 · P32
continued from page 31 continued from page 17 events in a young calf’s life. Option 1: Branding and
Research has shown that ad- Weaning: requires the use of
ther be culled or isolated and cines used in this option be a ministering vaccines during two rounds of 5-way MLV re-
treated and then re-tested six MLV only. periods of high stress can be spiratory vaccine (BVD 1 &
months after treatment. The effectiveness of a vac- counterproductive to the an- 2, IBR, PI3, and BRSV), re-
In contrast, if your herd is cine relies heavily on when imal when compared to vac- quires the use of two rounds
vaccines are given. There are
infected with anaplasmosis many factors to consider that cines given to animals not of at least a 7-way clostridial
and the organism is common could positively or negatively under stress. Utilizing a pre- (blackleg) vaccine, and one
in your area, a test-positive re- impact the outcome such as weaning or a delayed (a week dose of M. haemolytica / P.
placement animal is desired, calf age, stress, and time be- or two after weaning) vaccine multocida (a.k.a. Shipping
and the greatest health risk is tween the first and second dose administration may increase fever) given at weaning.
in replacement animals that of the vaccine. One example efficacy and provide greater Option 2: Preweaning and
are not infected with the or- deals with maternal antibody protection to the animal. Weaning: requires the use of
ganism but that will be placed interference (MAI). Colos- The time period between two rounds of 5-way respira-
in direct contact with carrier tral antibodies received from the 1st and 2nd dose of vac- tory vaccine. The first dose
cines should also be consid-
animals. In this situation, one the dam at first milk provide ered. Manufacturer require- at preweaning may be MLV
option is vaccination (if avail- the young calf with defense ments on many commercial or KV, with the second dose
able) with close monitoring mechanisms until the calf has vaccines indicate that vaccine at weaning being a MLV (re-
for clinical signs of the disease developed its own robust im- doses be given 14 to 21 days quired). Requires two rounds
and quick treatment if disease mune system. Research has apart for the greatest disease of at least a 7-way clostridial
is detected. shown that vaccines given too protection. Consult your vet- vaccine, and one dose of M.
Anaplasmosis control re- early in a young calf’s life may erinarian to determine best haemolytica / P. multocida
quires a good working rela- be perceived as a “foreign” practices for your operation. given at weaning.
tionship with your veterinari- object by the maternal anti- Option 3: Weaning and
an to determine your level of bodies passed along to calf, Vaccine product: Postweaning: Requires the
risk and best control strate- neutralizing the vaccine, and The OQBN program al- use of two rounds of 5-way
gies. The best control strategy rendering it useless. lows the use of KV and MLV MLV respiratory vaccine, re-
for your herd may be very dif- For vaccines to work most vaccines with certain timing quires the use of two rounds
ferent from that of your neigh- effectively, the calf should strategies for administration. of at least a 7-way clostridial
be healthy and unstressed. Producers may request al- vaccine, and one dose of M.
bors or cattlemen in other Stress is considered the num- ternative plans for review by haemolytica / P. multocida
parts of the country. ber one precursor to disease in OQBN administrators only given at either weaning or
livestock animals, and wean- with significant cause and postweaning
ing is one of the most stressful justification.