Distribución y niveles de infestación por garrapatas en bovinos de Córdoba, noroeste de Sucre y noreste de Antioquia
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Instituto Colombiano Agropecuario
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Se realiza un estudio para determinar las especies de garrapatas presentes en bovinos del departamento de Córdoba, Noroeste de Sucre y Noroeste de Antioquia. El trabajo fue desarrollado en 85 hams de siete zonas pertenecientes a 19 municipios de Córdoba, dos de Sucre y dos de Antioquia. Los hates fueron seleccionados al azar dentro de tres estratos (pequeño, mediano y grande) de acuerdo con su población ganadera. En cada hate se estimo el nivel de infestaciòn con garrapatas adultas presentes en 30 bovinos representativos de las diferentes edades y sexos dentro del hato. Los niveles de infestaciòn se designaron como: 1 (sin garrapatas), 2 (menos de 10 garrapatas), 3 (10 a 50 garrapatas) y 4 (mas de 50 garrapatas) per animal. Los especimenes a identificar en cada hate fueron obtenidos de tres bovinos tornados al azar, en los cuales se recolectaron todos los estados evolutivos de garrapata presentes. Se examinaron 2.261 especimenes, de los cuales 2.169 (95.93%) correspondieron a Boophilux microplus, 89 (3.93%) se identificaron como AmblroPrIma eaten-nense y 3 (0.13%) como Dennacentor (Anocentor) nitens Aunque B. microplus predeminò en todas las zonas, la presencia de A. cajennense en algunas de ellas, sugiere un problema potencial que requiere control especial. En general, los niveles de infestaciòn en el ganado examinado fueron bajos ya que los porcentajes mas altos correspondieron a ganado no infestado o con grado de infestacien bajo (nivel 1). Se observe dependencia significativa entre el grade de infestaciòn con garrapatas y los factores zona, raza, estaciòn y tamaño de halo. Las infestaciones mas altas se evidenciaron en la zona de Arboletes (4), en bovinos con características Bos laurus, en la época seca y en explotaciones pequeñas.
A study was conducted to determine the tick species present in cattle from the province of Cordoba, Northest of Sucre and Northwest of Antioquia. The work was carried out in 85 herds of 7 zones located in 19 localities of Cordoba, 2 of Sucre and 1 of Antioquia. The herds were randomly selected within 3 strata (small, medium and large) according to their cattle population. In each herd, the tick infestation level was stablished on 30 head of cattle representative of the different ages and sexes in the herd. Infestation levels were designated as: 1 (no ticks), 2 (less than 10 ticks), 3(10 to 50 ticks) and 4 (more than 50 ticks) per animal. The especimens to be identified in each herd were obtained from 3 randomly selected cattle in wich all the tick stages present were collected. Out of 2.261 ticks examined, 2.169 (95.93%) corresponded to Boophilus microplus; 89 (3.93%) were identified as Amblvom'na cajennense and 3 (0.13%) as Derinacentor (Anocentor) nitens. Although B. microplus prevaIled in all zones, the presence of A. cajennense in some of them, suggested a potential problem recuiring special control. In general, infestation levels on the cattle examined were law since the highest percentages corresponded to non infested cattle or cattle with low infestation (level 1), A significant dependence was observed between the degree of tick infestation and the factors zone, breed, season and herd size. The highest tick infestation were detected in the Arboletes (4) zone, on cattle with Bos taunis characteristics, in the dry season and in small herds.
Ganado de leche
Ganadería leche
A study was conducted to determine the tick species present in cattle from the province of Cordoba, Northest of Sucre and Northwest of Antioquia. The work was carried out in 85 herds of 7 zones located in 19 localities of Cordoba, 2 of Sucre and 1 of Antioquia. The herds were randomly selected within 3 strata (small, medium and large) according to their cattle population. In each herd, the tick infestation level was stablished on 30 head of cattle representative of the different ages and sexes in the herd. Infestation levels were designated as: 1 (no ticks), 2 (less than 10 ticks), 3(10 to 50 ticks) and 4 (more than 50 ticks) per animal. The especimens to be identified in each herd were obtained from 3 randomly selected cattle in wich all the tick stages present were collected. Out of 2.261 ticks examined, 2.169 (95.93%) corresponded to Boophilus microplus; 89 (3.93%) were identified as Amblvom'na cajennense and 3 (0.13%) as Derinacentor (Anocentor) nitens. Although B. microplus prevaIled in all zones, the presence of A. cajennense in some of them, suggested a potential problem recuiring special control. In general, infestation levels on the cattle examined were law since the highest percentages corresponded to non infested cattle or cattle with low infestation (level 1), A significant dependence was observed between the degree of tick infestation and the factors zone, breed, season and herd size. The highest tick infestation were detected in the Arboletes (4) zone, on cattle with Bos taunis characteristics, in the dry season and in small herds.
Ganado de leche
Ganadería leche
Palabras clave
Plagas de los animales - L72, Bovina, Infestación, Metastigmata, Plagas de animales, Ganadería y especies menores