Final answer:
The following vaccines should be administered to heifers at specific ages: Brucellosis, IBR, BVD-PI3, and BRSV at 4 to 12 months of age; Vibriosis and Leptospirosis at 12 to 15 months of age; Blackleg (7-way) and Anthrax at 3 to 4 months of age; and Anaplasmosis at 4 to 12 months of age.
Step-by-step explanation:
When should the following vaccines be administered to the heifers:
a. Brucellosis: The Brucellosis vaccine can be given to heifers at around 4 to 12 months of age. This vaccine protects against Brucella bacteria, which can cause reproductive problems in cattle.
b. IBR: The IBR vaccine can be given to heifers at around 4 to 12 months of age. IBR stands for Infectious Bovine Rhinotracheitis, and this vaccine protects against a viral infection that affects the respiratory and reproductive systems of cattle.
c. BVD-PI3: The BVD-PI3 vaccine can be given to heifers at around 4 to 12 months of age. BVD stands for Bovine Viral Diarrhea, and PI3 stands for Parainfluenza-3. This vaccine protects against both BVD and PI3, which are viral infections that can cause respiratory problems in cattle.
d. BRSV: The BRSV vaccine can be given to heifers at around 4 to 12 months of age. BRSV stands for Bovine Respiratory Syncytial Virus, and this vaccine protects against a viral infection that affects the respiratory system of cattle.
e. Vibriosis: The Vibriosis vaccine can be given to heifers at around 12 to 15 months of age. This vaccine protects against Vibrio bacteria, which can cause reproductive problems in cattle.
f. Leptospirosis: The Leptospirosis vaccine can be given to heifers at around 12 to 15 months of age. This vaccine protects against Leptospira bacteria, which can cause reproductive problems in cattle and can be transmitted to humans.
g. Blackleg (7-way): The Blackleg vaccine can be given to heifers at around 3 to 4 months of age. This vaccine protects against Clostridium bacteria, which can cause blackleg disease in cattle.
h. Anthrax: The Anthrax vaccine can be given to heifers at around 3 to 4 months of age. This vaccine protects against Bacillus anthracis, which can cause anthrax in cattle and humans.
i. Anaplasmosis: The Anaplasmosis vaccine can be given to heifers at around 4 to 12 months of age. This vaccine protects against Anaplasma bacteria, which can cause anaplasmosis in cattle.