Drenching for Sheep and Goats

Drenching, Do It and Do It Right!

guest post:

Emily Herring, Livestock Agent

Pender County

Drenching in sheep and goats can be the oral application of medications into the throat of the animal. This is the recommended way to administer dewormers to sheep and goats. There are other methods of administering dewormers such as injectables and pour-ons, but I will only focus on the oral method in this article. Intestinal parasites are the biggest threat to sheep and goats causing numerous health problems like weight loss, low birth weight, un-thriftiness, and even death. The best medications will not work properly if they are not given to the animal correctly. In Australia resistance to drenches is becoming a noted steadfast problem as well as other parts of the world, due to the incorrect methods of drenching. Parasite resistance is not a welcome problem among any farmer. For a refresher on oral drenching I have included some key steps a producer needs to remember to do before and after drenching a sheep or goat.

Before drenching an animal make sure the drench gun is calibrated and is not leaking. Check the nozzle for rough edges that may cause discomfort when medicating. Then think about how you are going to medicate the animals, as in how much you will administer to each of them. If the animals are various in sizes, group them into smaller groups according to their size. Then physically weigh the heaviest animal in the group and treat all animals in that group to that weight to make sure enough dewormer is given. Remember underestimating the weight of the animal promotes parasite resistance and has been one of the main contributing factors in parasite resistance, so don’t guess. Be sure to read and follow the specific labeled directions on the medication given.

When giving medications make sure the sheep/goats are properly restrained and can’t leap around when you are orally drenching. Hold the animals head horizontal by placing your hand under his chin. This encourages that the animal will swallow the whole amount given. Sheep and goats can suffer serious injury, or even death, if they are not restrained properly if the gun strikes the tissues at the back of the mouth. So be patient and don’t rush. Place the nozzle in the gap between molar and incisor teeth and then over the back of the tongue. Be sure the animal swallows the medication before letting the head go. If drenching is not done properly the animal will not receive the medication within the stomach and it can possibly go into the lungs, which can be fatal to the animal.

After giving the drench, be sure to record what and how much you gave to your animals and then place all unused drench back into original container. Be sure to clean your equipment by following the manufacture’s cleaning instructions. If you have any questions or need help with drenching contact your local County Livestock Agent.