Gastrointestinal nematode infection and feeding behaviour of goats in a heterogeneous vegetation: No evidence of therapeutic self-medication
| Autor: | P.G. González-Pech, R. Cámara-Sarmiento, Juan Felipe de Jesús Torres-Acosta, J. Ventura-Cordero, Carlos A. Sandoval-Castro, Lucelmi Novelo-Chi |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Live weight Self Medication Biology 010603 evolutionary biology 01 natural sciences Behavioral Neuroscience chemistry.chemical_compound Feces Animal science Observation point Animals 0501 psychology and cognitive sciences Dry matter 050102 behavioral science & comparative psychology Nematode Infections Parasite Egg Count Treated group Goat Diseases Goats 05 social sciences Direct observation General Medicine Feeding Behavior Moxidectin chemistry Criollo tobacco Animal Science and Zoology Female Gastrointestinal nematode Macrolides |
| Zdroj: | Behavioural processes. 162 |
| ISSN: | 1872-8308 |
| Popis: | The aim of this study was to identify modifications in the feeding behaviour of goats browsing a tropical deciduous forest (TDF) when natural gastrointestinal nematode (GIN) infection was suppressed. Continuous bite monitoring through direct observation was implemented in 12 Criollo goats (adults, non-pregnant) foraging for 4 h per day during the rainy season. In the first Period (P1, one observation point) all goats were maintained with natural GIN infection. In the second Period (P2, three observation points), goats were equally distributed into 2 groups: i) moxidectin treated group (TG) used in a suppressive scheme; and ii) naturally infected group (IG). For each observation point, goats were monitored at three timepoints per day (80 min each), for three consecutive days, to estimate their intake of dry matter (DM), condensed tannins (CT), crude protein, metabolizable energy and digestible DM. Live weight (LW), faecal samples and blood samples were obtained every 28 days to determine LW change, faecal egg counts (FEC) and packed cell volume (PCV). During P1 and P2, the TG and IG had similar LW change and PCV. During both periods, the intake of DM, CT and all macronutrients were similar for TG and IG. The suppression of GIN infection did not modify the feeding behaviour of goats. Therefore, a therapeutic self-medicative behaviour was not identified in Criollo goats browsing a TDF. |
| Databáze: | OpenAIRE |
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