1. Evaluation of soil intake by growing Creole young bulls in common grazing systems in humid tropical conditions
- Author
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Maurice Mahieu, Claire Collas, Marie-Laure Lastel, Cyril Feidt, Xavier Godard, Guido Rychen, Stefan Jurjanz, Harry Archimède, Unité de Recherches Animal et Fonctionnalités des Produits Animaux (URAFPA), Institut National de la Recherche Agronomique (INRA)-Université de Lorraine (UL), Groupement de défense sanitaire (GDS), GDS, Plateforme Tropicale d'Expérimentation sur l'Animal, Institut National de la Recherche Agronomique (INRA), Unité de Recherches Zootechniques (URZ), Université de Lorraine (UL)-Institut National de la Recherche Agronomique (INRA), and Plateforme Tropicale d'Expérimentation sur l'Animal (PTEA)
- Subjects
Male ,Insecticides ,bovin ,stocking rate ,West Indies ,[SDV]Life Sciences [q-bio] ,Forage ,010501 environmental sciences ,Biology ,pasture allowance ,SF1-1100 ,01 natural sciences ,Soil ,Food chain ,beef cattle ,Tropical climate ,Grazing ,soil intake ,Animals ,Soil Pollutants ,tethering ,Animal Husbandry ,0105 earth and related environmental sciences ,2. Zero hunger ,Tropical Climate ,Herbivore ,Cross-Over Studies ,fourrage ,consommation animale ,0402 animal and dairy science ,forage ,Feeding Behavior ,04 agricultural and veterinary sciences ,Animal husbandry ,040201 dairy & animal science ,Animal culture ,Agronomy ,Chlordecone ,animal consumption ,Soil water ,Cattle ,Animal Science and Zoology - Abstract
Soil is the main matrix which contributes to the transfer of environmental pollutants to animals and consequently into the food chain. In the French West Indies, chlordecone, a very persistent organochlorine pesticide, has been widely used on banana growing areas and this process has resulted in a long-term pollution of the corresponding soils. Domestic outside-reared herbivores are exposed to involuntary soil intake, and tethered grazing commonly used in West Indian systems can potentially favour their exposure to chlordecone. Thus, it appears necessary to quantify to what extent grazing conditions will influence soil intake. This experiment consisted of a cross-over design with two daily herbage allowance (DHA) grazed alternatively. Six young Creole bulls were distributed into two groups (G1 and G2) according to their BW. The animals were individually tethered and grazed on a restrictive (RES) or non-restrictive (NRES) levels of DHA during two successive 10-days periods. Each bull progressed on a new circular area every day. The two contrasting levels of DHA (P0.05) due to the lower DMI of RES compared with NRES treatment.
- Published
- 2017
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