Effects of Zataria multiflora Boiss (ZMB) Essential Oil on Treatment of Sub - Clinical Mastitis in Dairy Cow

Background: Sub-clinical mastitis is an inflammation of mammary glands which is a big economic damage. Treatment of this disease isn’t recommended due to antibiotic residue in milk. Objective: In this study, clinical efficacy of - Zataria multiflora Boiss essential oil (ZMBeo) in treatment of sub-clinical mastitis was evaluated and other expedients were prepared. Methods: Thirty Holsteins cows with sub-clinical mastitis were selected in a randomized manner which weighed between 600 - 700 kg. One of the solutions, A and B (one with essential oil and the other without it) was injected into each quarter. Milk quantity & CMT were tested before and after of injections. Results: Results showed that ZMBeo causes rapid healing of mammary gland and inhibits decrease of milk production. Conclusion: ZMBeo can be used in treating bovine sub-clinical mastitis