Supplementation with rumen-protected proteins induces resistance to Haemonchus contortus in goats

Autor: S. Cériac, H. Archimède, D. Feuillet, Y. Félicité, M. Giorgi, J.-C. Bambou
Přispěvatelé: Unité de Recherches Zootechniques (URZ), Institut National de la Recherche Agronomique (INRA), Plateforme Tropicale d'Expérimentation sur l'Animal (PTEA), Project Agroecodiv (La Region Guadeloupe), Project Agroecodiv (Fonds Europeens FEDER), INRA metaprogramme GISA (Gestion Integree de la Sante Animale) Project Strep (drastic and Sustainable Treatment Reduction against Parasitism in livestock), la Region Guadeloupe, division of animal genetics of INRA
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Scientific Reports
Scientific Reports, Nature Publishing Group, 2019, 9, pp.1-10. ⟨10.1038/s41598-018-37800-3⟩
Scientific Reports, Vol 9, Iss 1, Pp 1-10 (2019)
ISSN: 2045-2322
DOI: 10.1038/s41598-018-37800-3⟩
Popis: International audience; Resistance to gastro-intestinal nematode (GIN) in small ruminant is expected to arise from protein-rich rather than from energy-rich feeds. The objective of this study was to investigate the effect of the quality of the dietary proteins on the response of Creole goats to Haemonchus contortus. Three diets were compared: no supplementation (Hay: hay ad libitum), Control supplement (CS: hay ad libitum +2% BW of CS at 70 g of by-pass proteins/kg) and supplement enriched in rumen-protected proteins (RPP: hay ad libitum +2% BW of RPP at 139 g of by-pass proteins/kg). The FEC (faecal eggs counts) and the TFEC (total faecal eggs excreted/day) were significantly lower in the RPP. No difference was found between the supplemented diets for the total number of nematodes, but the RPP reduced the parasite prolificacy. The highest IgA responses were observed in animals with the highest nematode burden (Hay compared with CS diets). However, while the FEC and the TFEC were lower in animals feed with the RPP the IgA response were similar to those of the Hay. The IgA response that control GIN egg production in sheep could be one mediator of the resistance to H. contortus induced with by-pass proteins in goats.
Databáze: OpenAIRE