Resumen

CAMPOS, C.Y  y  MARISCAL, P.C.A. FRECUENCIA DE INFESTACIÓN POR Haematobia irritans (L) EN BOVINOS DE PREDIOS GANADEROS, CASARABE, PROVINCIA CERCADO, BENI BOLIVIA 2014. Rev.Cient.Agro.Amaz. [online]. 2014, n.4, pp. 37-43. ISSN 2307-9606.

The research work was performed to determine the horn fly (Haematobia irritans) frequency in 361 cattle belonging to 16 farms in Casarabe, Cercado province, Beni, Bolivia (2014). The method was the indirect visual counting of horn fly adults, using digital pictures of the animals. Results showed that 50.69% of cattle was infest by H. irritans (P> 0.05), and also 93.75% of farms (P> 0.05). Then, there were less than 50 horn flies infesting cattle (100%) (P<0.05). The rib-abdominal body area presented the highest parasitic frequency (42.91%). The parasite frequency in animals of dairy farms was 61.74%, whereas in bovines of mixed farms (meat-milk) was 38.26% (P> 0.05). Then it was conclude that the H. irritans frequency in bovines is intense, and in farms is severe, being the dairy farms the most infested. Then, prevails a parasite mi ld level, and also the body area between ribs and abdomen is the most affected.

Palabras llave : bloodsucking Dipterans; horn fly; Muscidae; livestock pest.