Optimal routes of administration
Joan Piella
22-Oct-2013 (12 years 7 months 14 days ago)
22-Oct-2013 (12 years 7 months 14 days ago)
Goal
The optimization of the administration routes of drugs in sows.
Introduction
The best way of administering drugs to sows, according to the moment in their cycle, has been studied, optimizing the speed of action, the efficacy, and the financial cost. In order to do this we used different routes of administration and syringes, and normally very thin disposable needles.
Explanation
In the farrowing quarters it is essential that the sows are calm and to minimise any kind of stress, especially when the farrowing is near. There are some practices that we carry out systematically using insulin syringes.
- For example, for the synchronization of farrowings: we administer prostaglandins through the vulva with half of the dose that we would use with the intramuscular route in the neck. The sows do not notice the injection and the advantages are obvious.
- Another example is the administering of oxytocin when the rhythm of the farrowing calls for it, or in order to ease the milk ejection. Administering 10 IU subcutaneously on those moments we get the sow not to become afraid nor stand up.
In pregnant sows we try to reduce the stress for the animals by their periodic treatments:
- For the "blanket" vaccinations we use a normal automatic gun with an extension and thin disposable needles, injecting in the muscular group of the hind limbs. (Experience is needed when guiding the needle when pricking the sow, otherwise many needles end up breaking).
- For the antiparasitic treatments we use the gun, but with shorter needles, using the subcutaneous route in the skin fold beside the tail.
