There are a number of treatment solutions that offer a zero day milk withdrawal period, however, not all formulations are best suited to use in selective treatment strategies on dairy farms.
The precise administration
What makes a product suitable for use in a selective approach?
Selective treatment relies on you being confident that the treatment you give is received only by the animal(s) that you give it to.
Pour-on products rely on penetration, absorption and distribution through the skin. As they are applied topically, the dose could be:
- transferred between animals when they lick each other (Bousquet-Melou et. al. 2004)
- affected by dust, dirt or manure on an animal’s skin (Gokbulut et. al. 2012)
- subject to the variability caused by environmental factors (Gokbulut et. al. 2012)
Any dose transfer could lead to sub-therapeutic dosing that may favour the emergence of resistance. The resultant variability of the dose received between animals could also lead to unpredictable residue levels and implications on food safety.
Pour-on products now have guidance now specifically stating that if using these products you need to ensure that treated and untreated animals are separated to avoid residue violations (2019 Vet Times, 49, 43:6).
A precise wormer
A more suitable and adaptable wormer for selective treatments of worms in dairy cattle is available!
With 0 days milk withdrawal period, the injectable formulation of eprinomectin is the right choice, allowing:
- an accurate dose via the subcutaneous route
- each animal to receive the correct dose, minimising the risk of resistance developing
- no product loss due to licking
- less product spread in the environment
- zero milk withdrawal period to maximise profitability and reduce the risk of milk residues
Eprinomectin injectable solution
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