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Bibliographic Details
Main Author:	VH. Suarez
Format:	Artículo científico
Language:	es
Published:	Universidad Nacional del Litoral 2018
Subjects:	Veterinaria Bovinos epidemiología efectos productivos Chaco semiárido salteño nematodes gastrointestinales
Online Access:	https://www.redalyc.org/articulo.oa?id=617767037003 https://www.redalyc.org/journal/6177/617767037003/ https://www.redalyc.org/journal/6177/617767037003/html/ https://www.redalyc.org/journal/6177/617767037003/617767037003.epub https://www.redalyc.org/journal/6177/617767037003/movil
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Epidemiología y efectos de los nematodes gastrointestinales en la recría bovina en el Chaco semiárido salteño VH. Suarez V. Araoz JF. Micheloud AE. Viñabal Veterinaria Bovinos epidemiología efectos productivos Chaco semiárido salteño nematodes gastrointestinales El objetivo del presente trabajo fue estudiar la epidemiología y el efecto de los nematodes gastrointestinales (NGI) en la recría bovina en la región del chaco semiárido de Salta. Desde marzo 2016 a febrero 2017 se formaron tres grupos de 20 terneras de recría: GMXD tratamiento cada 45 días con moxidectina (200 μg/kg), GIVM 1 solo tratamiento al inicio del ensayo con ivermectina 3,15% LA (630 μg/kg) y GCON control sin tratamiento. Cada 45 días se realizaron conteos de huevos (hpg) de nematodes y coprocultivos y se registró la ganancia de peso vivo (GPV). Al inicio los hpg fueron bajos ( 102±77) elevándose en el GCON hacia mediados del invierno ( =1049±1040), para luego descender hacia el final del ensayo, luego de un pico a mediados de la primavera ( =667±928). Los hpg del GIVM mostraron solo un descenso parcial (37,3%) postratamiento y el GMXD siempre tuvo valores de hpg muy bajos, mostrando la eficacia de la moxidectina. Los géneros de nematodes predominantes fueron Haemonchus (47,1%) y Cooperia (45,9%). El efecto de los tratamientos se evidenció desde fines de otoño, mostrando el GMXD una mayor GPV (p<0,04) al final del invierno, comparado con los otros dos grupos. Al final del ensayo, las GPV totales del GMXD (146,5 kg) fueron significativamente (p<0,008) mayores que las del GIVM (111,0 kg) y del GCON (105,2 kg). Estos resultados muestran un pico del hpg a mediados de invierno, a Haemonchus y Cooperia como géneros predominantes y un efecto negativo en la GPV de la recría. 2018 artículo científico 1666-938X https://www.redalyc.org/articulo.oa?id=617767037003 https://www.redalyc.org/journal/6177/617767037003/ https://www.redalyc.org/journal/6177/617767037003/html/ https://www.redalyc.org/journal/6177/617767037003/617767037003.epub https://www.redalyc.org/journal/6177/617767037003/movil es http://www.redalyc.org/revista.oa?id=6177 FAVE Sección Ciencias Veterinarias application/pdf Universidad Nacional del Litoral FAVE Sección Ciencias Veterinarias (Argentina) Num.1 Vol.17

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