Using Duddingtonia flagrans in calves under an organic milk farm production system in the Mexican tropics
| Autor: | María Eréndira Reyes García, Miguel Ángel Orantes Zebadúa, José Nahed Toral, Diego Pérez, Bernardo Sánchez Muñoz, Pedro Mendoza de Gives, José Luis Cruz López |
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| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Male Veterinary medicine 030231 tropical medicine Immunology Population Cattle Diseases Biology Crossbreed 03 medical and health sciences Feces Random Allocation 0302 clinical medicine Duddingtonia parasitic diseases Grazing Animals Trichostrongylus Intestinal Diseases Parasitic education Organic milk Nematode Infections Mexico Parasite Egg Count Oesophagostomum education.field_of_study Organic Agriculture Tropical Climate General Medicine 030108 mycology & parasitology Spores Fungal biology.organism_classification Dairying Infectious Diseases Larva Strongyloides Parasitology Cattle Female |
| Zdroj: | Experimental parasitology. 175 |
| ISSN: | 1090-2449 |
| Popis: | The reduction of the gastrointestinal nematode (GIN) larvae population in faeces of cattle treated with Duddingtonia flagrans chlamydospores on a farm under an organic production system in Chiapas, Mexico, was assessed. Seventeen Cebu/Swiss crossbreed grazing calves naturally infected with GIN, were randomly distributed into two groups and treated as follows: Group 1, an oral administration of 2 × 10 6 D. flagrans chlamydospores/kg BW, every two days for 30 days; group 2, Control, without any treatment. Results indicated that the epg values in both groups remained similar (p > 0.05). The average number of (L 3 ) from coprocultures from the group treated with D. flagrans had an important reduction (53.8%) with respect to the control group and it reached 75.3% maximum larval reduction at the 14th sampling; although, no statistic significance was observed (p > 0.05). Likewise, the average of larvae (L3) recovered from grass corresponding to the animals treated with D. flagrans diminished at 25.1% with respect to the control group (p > 0.05). A mixture of GIN genera including Strongyloides sp., Haemonchus sp., Cooperia sp., Trichostrongylus sp., Oesophagostomum sp. and Mecistocirrus sp., were identified from coprocultures. It was concluded that treatment with D. flagrans chlamydospores reduces the GIN larvae population in grass and in faeces of calves maintained under an organic milk production system. |
| Databáze: | OpenAIRE |
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