Goat preference for Prosopis caldenia and Prosopis flexuosa

Authors
Pisani, Jorge Marcelo; Didone, Nilda Graciela; Distel, Roberto Alejandro
Publication Year
2001
Language
English
Format
article
Status
Published version
Description
Prosopis caldenia and P. flexuosa are native woody plants in central Argentina. Circumstantial observations have shown that goats consistently select the first species and avoid the latter. The present study was designed to compare preference of goats for old and new branches of both species under controlled conditions. We ran choice tests that paired old and new branches of P. caldenia and P. flexuosa in all possible binary combinations. For each option a preference index was calculated by dividing the number of bites on the particular option by the total number of bites on both options. Goats showed the following preference order: old branches of P. caldenia>new branches of P. caldenia>old branches of P. flexuosa=new branches of P. flexuosa. Goat preference was positively correlated with total phenols and condensed tannins, whereas it was negatively correlated with neutral detergent fibre.
Fil: Pisani, Jorge Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina
Fil: Didone, Nilda Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina
Fil: Distel, Roberto Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina
Subject
GOAT PREFERENCE
DIET SELECTION
PROSOPIS CALDENIA
PROSOPIS FLEXUOSA
SEMI ARID SHRUBLANDS
ARGENTINA
Bioquímica y Biología Molecular
Ciencias Biológicas
CIENCIAS NATURALES Y EXACTAS
Access level
Restricted access
License
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repository
CONICET Digital (CONICET)
Institution
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identifier
oai:ri.conicet.gov.ar:11336/27604