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正文
Ticks, are irritating arthropods that prey on dogs. Their goal in life is to find a warm-blooded creature so that they can feed. Veterinarians and pet owners have been battling these tiny parasites for decades and the war continues.
Ticks are members of the Acarina order and are not insects. Ticks and mites are in a class all by themselves. In the transmission of disease, mosquitoes and ticks are the primary concern, with ticks being the most important.
Ticks are divided into 3 different families. Only 2 of these families are present in the US, the Ixodidae (hard tick) family and the Argasidae (soft tick) family. Within the Ixodidae, there are about 60 different species that have been reported in the US. Within the Argasidae family, there are about 20 reported US species.
There are 4 stages in the life cycle of a tick: egg, larva, nymph and adult. This life cycle can be completed within 2 months. The larvae, nymph and adults all feed on blood and after a feeding, the tick falls from the feeding source and the larva will molt to a nymph, the nymph will molt to an adult and the female adult will lay eggs. Male ticks ingest far less blood than females.
When ticks are in need of a blood meal, they seek out prey by heat sensors. When a warm object passes by them, they attach to this object by clinging to clothing or fur or falling from trees onto the object. Dogs are a common target for ticks.
After the prey has been chosen, the tick migrates to an area that has little hair or does not present difficulty in feeding (the ears and skin around the ears or lips are common places). The tick inserts its pincher-like mouthparts into the skin and begins feeding. These mouthparts are locked in place and will only dislodge when the tick has completed the meal. Once the meal is complete, the adult female will fall from the prey and seek shelter. Eggs are born and the adult female dies.
Tick Removal
Many methods have been tried to remove ticks, many of which are not recommended. Applying a recently extinguished match or even a still lit match to the body of the tick will NOT cause the tick to back out and fall off. The mouthparts only let go when the tick has completed the meal. Also, applying fingernail polish will suffocate the tick but will not cause the tick to fall off.
Ticks are members of the Acarina order and are not insects. Ticks and mites are in a class all by themselves. In the transmission of disease, mosquitoes and ticks are the primary concern, with ticks being the most important.
Ticks are divided into 3 different families. Only 2 of these families are present in the US, the Ixodidae (hard tick) family and the Argasidae (soft tick) family. Within the Ixodidae, there are about 60 different species that have been reported in the US. Within the Argasidae family, there are about 20 reported US species.
There are 4 stages in the life cycle of a tick: egg, larva, nymph and adult. This life cycle can be completed within 2 months. The larvae, nymph and adults all feed on blood and after a feeding, the tick falls from the feeding source and the larva will molt to a nymph, the nymph will molt to an adult and the female adult will lay eggs. Male ticks ingest far less blood than females.
When ticks are in need of a blood meal, they seek out prey by heat sensors. When a warm object passes by them, they attach to this object by clinging to clothing or fur or falling from trees onto the object. Dogs are a common target for ticks.
After the prey has been chosen, the tick migrates to an area that has little hair or does not present difficulty in feeding (the ears and skin around the ears or lips are common places). The tick inserts its pincher-like mouthparts into the skin and begins feeding. These mouthparts are locked in place and will only dislodge when the tick has completed the meal. Once the meal is complete, the adult female will fall from the prey and seek shelter. Eggs are born and the adult female dies.
Tick Removal
Many methods have been tried to remove ticks, many of which are not recommended. Applying a recently extinguished match or even a still lit match to the body of the tick will NOT cause the tick to back out and fall off. The mouthparts only let go when the tick has completed the meal. Also, applying fingernail polish will suffocate the tick but will not cause the tick to fall off.
- The best recommendation to remove a tick is to use a tweezers or commercially available tick removal device and pull the tick off. Do not touch the tick since diseases can be transmitted. Use a tissue or paper towel to protect your fingers. Consider wearing gloves when removing a tick.
- With a tweezers or tick removal device, grab the tick as close to the head as possible. With steady, gentle pressure, pull the tick out of the skin. Frequently, pieces of skin may come off with the tick. Do not twist the tick - pull straight up and out.
- If the head of the tick remains in the skin, try to grab it and remove as much as possible. If you are unable to remove the entire head, don't fret. This is not life threatening. Your pet's immune system will try to dislodge the head by creating a site of infection or even a small abscess. Wash your hands.
- Usually no additional therapy is needed, but if you are concerned, contact your family veterinarian. There are surgical instruments that can be used to remove the remaining part of the tick.
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