Cattle Lice

The organophosphates phosmet chlorpyrifos beef and nonlactating dairy cattle only tetrachlorvinphos coumaphos and diazinon beef and nonlactating dairy cattle only. There are four species of lice involved in winter cattle lice infestations and each of the species has a somewhat different area of the animal s body where they like to hang out.

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Lice are a common winter problem in cattle especially in cold climates.

Cattle lice. Lice in cattle cause intense irritation causing animals to scratch and rub. Cattle lice are a cold season insect that thrives in very cold conditions. Lice can transmit some disease causing pathogens.

Lice is growing fast and a lot in winter season because cattle s winter hair provides lice protection and a great environment for reproduction. And the macrocyclic lactones ivermectin eprinomectin and doramectin. A variety of compounds effectively control lice in cattle including synergized pyrethrins.

Swinepox to hogs h. As mentioned above that lice can be spread through contact with infected animals. They are usually found around the head and neck of cattle biting lice biting lice have larger rounder heads.

Cattle lice cause irritation and rubbing that results in hair loss and poor coat quality. Sucking lice these have relatively small narrow heads designed piercing the skin and sucking blood. Battling lice in your cowherd.

Populations are most noticeable during december january february and decline during march when temperatures warm. All lice cause severe irritation and itching causing hair loss as cattle react by rubbing or licking themselves. Occasionally a treatment will be required depending on numbers affected in the mob and severity of symptoms.

Suis bovine anaplasmosis and bovine dermatomycosis to cattle. Lice numbers are reduced by host grooming resistance molting and feather loss hibernation and hormonal changes as well as predators parasites and parasitoids. Lice are transmitted by contact from one animal to another.

Here is more recent information on lice control in beef cattle. Cattle won t always require treatment for a skin problem resulting from a lice infestation. Therefore it is important to apply lice treatments so they cover the body as much as possible so lice come in contact with the small amount of product being applied especially with pyrethroid products that are not absorbed into the body.

The synthetic pyrethroids cyfluthrin permethrin zetacypermethrin and cyhalothrin including gamma and lambda cyhalothrin beef cattle only. Heavy infestations can rob valuable nutrition when cattle need it most decreasing gain and leaving cattle more susceptible to disease. Lice are small flat bodied insects with legs modified for grasping hairs.

In large numbers they can cause anaemia. Here are vet approved tips to control it. Not only can this become a welfare issue but it can have severe consequences on productivity through reduced feed intake.

Infested animals are often restless focusing on their discomfort rather than eating and if the problem is caused sucking lice they may become anaemic.

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