A second application is needed two weeksĪfter the initial treatment to allow the eggs to hatch. Louse control is difficult with just a single insecticide application, Control of louse infestations is needed whenever an animal scratchesĪnd rubs to excess. Insecticides are usually bestĪpplied in late fall. Louse populations than found under normal conditions. Animals under stress will usually support larger On livestock are typically greater during the winter months and reach peak activity On animals vary seasonally, depending on the condition of the host. It is important to keep animals in uncrowded conditions and to spot treat or quarantineĪny infested individuals until they have been successfully deloused. Providing a high-energy diet can be an effective louse control strategy. Goat lice can be controlled by both production practices and chemical intervention. Illustration of an incomplete lice life cycle. To herds by bringing in infested animals.įigure 1. Some lice may move from place to place by clinging to flies. Transmissionįrom herd to herd is usually accomplished by transportation of infested animals, although Lice are generally transmitted from one animal to another by contact. Also, the host is often listless and in severe cases, loss of blood to sucking Result of nervousness and improper nutrition. Scratch, causing raw areas on the skin or loss of hair. The irritation from louse feeding causes animals to rub and Louse-infested animals may be recognized by their dull, matted coat or excessive scratchingĪnd grooming behavior. Sucking lice pierce the host’s skin and draw blood. Biting lice have chewing mouthparts and feed on particles Lice are divided into two main groups: the Anoplura (sucking lice) and Mallophaga Only attack goats and their close relatives such as sheep. Itching, rubbing and biting of the hair or fleece. Lice infest a wide range of domestic livestock, including pigs, cattle, goatsĪnd sheep, causing a chronic dermatitis (pediculosis), characterized by constant irritation, More than 3,000 species have been described, mainly parasites ofīirds. Incomplete development, where the immatures are known as nymphs and look similar toĪdults (Figure 1). Of lice is slightly different when compared to other external parasites. Lice (Order: Phthiraptera) are wingless, flattened, permanent ectoparasites of birds and mammals. In general, infested livestock cannot be efficiently managed. Transmit diseases from sick to healthy animals. The wounds and skin irritation producedīy these parasites result in discomfort and irritation to the animal. External parasitesįeed on body tissue such as blood, skin and hair. Arthropod pests limit production in the goat industry in many ways.
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