Tabernacle A D3 E Tabernil A D3 E is a vitamin supplement administered in drinking water. It is especially recommended for canaries and ornamental birds in general. Symptoms include decreased sex drive, egg inviability, sterility in males, and infertility in females. Causes deficiency states due to insufficient intake or excessive demand of vitamins A, D3, and E. Administration and dosage: It should be added to drinking water at a dose of 4 ml per liter of water; this dose is equivalent to 4 drops per 40 ml. It is recommended to start administration 20 days before mating, continuing until the end of the spawning period in cycles of 5 days of treatment and 10 days of rest. Do not forget to change the medicated water daily. Composition: Vitamins A, D3, and E.