Calf Vaccine Calendar & Every Shot on a Date

It is a fixed calendar of vaccinations a calf needs as it grows, each timed to an age or a season. From the birth date, every shot lands on a specific calendar date — FMD around 4 months with a booster, HS and BQ before the monsoon, and Brucellosis for heifer calves at the right age. The schedule keeps the herd protected against the major preventable diseases.

Each vaccine has a recommended age or season offset, so from the calf's birth date the tool adds that offset to get a calendar date — for example FMD at about 4 months gives a date 120 days after birth, with a booster a month later. The result is a dated list: number of vaccinations, each vaccine's date, and the last dose date.

Foot-and-Mouth Disease vaccine is typically given around 4 months of age, followed by a booster about a month later, and then repeated every six months as a regular re-vaccination. FMD is one of the most economically damaging diseases, so the early primary course plus boosters is the backbone of the schedule.

HS (Haemorrhagic Septicaemia) and BQ (Black Quarter / Blackleg) are bacterial diseases that strike hard in the monsoon, so their vaccines are timed before the rains, usually from about 6 months of age and repeated annually. Pre-monsoon timing means immunity is in place before the high-risk wet season begins.

Brucellosis vaccine is given to female (heifer) calves, usually between about 4 and 8 months of age, as a once-in-a-lifetime shot. It protects against abortion and reproductive losses. Male calves are not vaccinated for it. The schedule places the Brucellosis date only for heifer calves at the correct age window.

Because protection depends on age — maternal antibodies fade, and a calf's own immune system responds best at certain ages, so vaccinating too early or too late weakens the cover. Anchoring every shot to the birth date turns vague advice like 'at 4 months' into concrete dates you can put on a calendar and not miss.

Yes — buffalo follow broadly the same core schedule for FMD, HS and BQ, with similar age and seasonal timing, so the dated calendar applies to both cattle and buffalo calves. Always confirm the exact products and intervals with your local veterinary authority, as regional programmes vary.

Vaccination is only part of calf health — regular deworming, mineral supplementation and parasite control run alongside it. This tool focuses on the dated vaccine calendar; use the Deworming Dose calculator and your vet's herd-health plan to schedule the other treatments between the vaccination dates.

They are solid planning dates based on standard recommended ages and seasons. Actual timing should follow your veterinarian and the regional disease-control programme, which may shift dates for outbreaks, monsoon onset or product availability. Treat the calendar as a reminder framework and confirm each shot with your vet.