In vitro predacious ability of Duddingtonia flagrans against gastrointestinal nematode larvae of hair sheep
The nematode control using fungi is one alternative to prevent anthelmintic resistance. The purpose of this study was to evaluate the in vitro predacious ability of Duddingtonia flagrans against Haemonchus and Cooperia infective larvae, by both visualizing and measuring the larvae trapping activity (LTA) and by the nematode populations reduction in different culture media. These experiments were carried out at the Autonomous University of Chapingo in Teapa, Tabasco, Mexico. One D. flagrans Mexican strain was used in the two trials. In the first trial, LTA was visualized and measured under the microscope and observations were described. In the second trial, a reduction of the nematode population by the fungal activity was evaluated using three different culture media: water agar (WA), corn meal agar (CMA), and dextrose potato agar (DPA) at 3 different recovery times (24, 48, and 96 h). In the first trial, both rings and adhesive loops were observed, as well as larvae trapped in such structures. The LTA was higher at 48 h (68.4 ± 16.0 %) as compared to that found at 24 h (41.1 ± 19.9 %, P
| Main Authors: | , , , , , |
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| Format: | Digital revista |
| Language: | spa |
| Published: |
Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias
2012
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| Online Access: | https://cienciaspecuarias.inifap.gob.mx/index.php/Pecuarias/article/view/1362 |
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