Effects of different local preparations on sarcoptic mange in swine
1994
Kaarma, A. | Maegi, E. (Estonian Agricultural University, Tartu (Estonia))
Sarcoptosis suis caused by parasitic mites Sarcoptes scabiei var. suis is a widespread contagious disease. According to our observations in the Estonian pig farms, the frequency of sarcoptosis suis has increased (A. Kaarma 1989; A. Kaarma, E. Maegi 1993). In our conditions occurence of sarcoptic mange in the farm is possible for about 23-25 per cent of the pigs. Recent surveys of our pig farms have shown an occurence of clinical signs of sarcoptosis in most boars, several piglets and sows. Per farrow, the case of mange was 15-50 per cent. Lesions usually start on head, then spread over the body, tail and legs. Itching is usually associated with the development of hypersensitive reaction to the mites. Sarcoptic mange in breeding swine is recognized as a major cause of losses in swine productivity. Parasitic infection may also affect energy requirements. In 1990-1994 several experiments with domestic preparations were carried out. In addition to 150 sows and their piglets, about 40 boars were treated in the trials. Certain external pest arthropods such as mange mites, are controlled only by treating the host. To control these pest our investigations were made to determine the effect of chemotherapeutic preparation benzyl benzoate, 5 juvenoids and 4 plant extracts
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