New Zealand

Mastitis Reduction in Heifers

Heifers are at a consistently higher risk of clinical mastitis than older cows around calving and early lactation. This leaves them at increased risk of having light quarters, teat canal thickening and being culled - before they have even entered the milking herd.

Mastitis reduction in heifers

With heifer mastitis rates over 25% on many New Zealand farms, the magnitude of the problem and the associated costs become very clear.

Teatseal administered to maiden heifers approximately 4 weeks pre-calving dramatically reduces clinical mastitis around calving, thereby reducing the cost and frustration associated with heifer mastitis. If necessary, Teatseal can be administered closer to calving (1-4 weeks prior to planned start of calving).


Teatseal is proven to dramatically reduce the incidence of calving mastitis in heifers. Administering Teatseal approximately 4 weeks pre-calving resulted in:

  • 84% reduction in Strep uberis infections at calving.
  • 68% reduction in clinical mastitis in the first two weeks of lactation.



  • Teatseal is a non-antibiotic, inert substance that forms a physical barrier immediately on insertion, blocking the entry of bacteria into the udder throughout the dry period and at calving.
  • Heifer Teatsealing requires best practice hygiene and is usually done by your vet or a technician team.
  • Teatseal is only available from your vet, so contact them for more information.

Best practice administration guide for Teatsealing heifers.

Best practice administration View best practice »

Farmer Testimonial

With a herd of 650 cows, Jeremy Moore shares his success with Teatseal.

Using Teatseal in heifers reduces Strep. uberis infections at calving by:



Teatseal Administration Guide.

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Teatseal Information Leaflet.

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