Evaluación productiva de una dieta alternativa como reemplazo parcial de concentrado comercial en aves de postura

ABSTRACT: The purpose of this research is to carry out a preliminary evaluation of an alternative kind of food, based on local available resources such as: yellow corn, blackwood leafs (Trichantera gigantea), cassava with its peel, pineo plantain, (Musa paradisiaca) and cooked whole soy in San Rafael municipality in Antioquia state, as a partial substitute for a kind of commercial food for brown-egg laying hens. This research was carried out in the first phase of hen’s production. Rural communities actively participated in it. 600 hundred hens, from 25 to 40 weeks old, distributed in four treatments, with three repetitions and 50 hens per repetition in six villages under similar weather conditions, under partial graze and controled feed at 115 g/hen/day were used. The research replaced 0 (T1), 25 (T2), 50 (T3) y 75 (T4) % of their commercial food by the alternative one; the alternative one had a similar metabolizable energy, raw proteins, (lysine, methionine), calcium and phosphorus in relation to their commercial food. The answering variables were: egg-laying percentage (as a transforming variable (Ö (100-%laying)), egg weight, body weight, egg mass, and feeding conversion per dozen and per egg mass, with measurements practiced every fifteen days and analysed under a randomised design in plots divided in time; the measurement contrast was carried out with SNK test. Except for the egg weight, T4 was meaningfully lower (p < .05) if compared with other treatments on answering variables; the variable fortnights showed a meaningful effect (p < .05) on answering variables, except for the egg mass conversion; the interaction between treatments and fortnights was statistically different (p < .05) for the egg-laying percentage, and the conversion per dozens of eggs indicates that in T4, the conversion was increased, however the egg-laying decreased in a more notorious way than in any other treatment being evaluated in the fortnights. We could conclude that under certain conditions under which this research was carried out, there are no differences in answering variables when an alternative kind of food replaces 50% of hens’ commercial food; this conclusion implies that there are important possibilities to use local food available resources to feed laying hens with similar results like the ones obtained when commercial food is used.

• Autores: Berrío, Ana María; Cardona López, Manuel Guillermo
• Tipo de recurso: Article of investigation
• Fecha de publicación: 2001
• Institución: Universidad de Antioquia
• Repositorio: Repositorio UdeA
• Idioma: spa
• OAI Identifier: oai:bibliotecadigital.udea.edu.co:10495/7192
• Acceso en línea: http://hdl.handle.net/10495/7192
• Palabra clave: Comportamiento productivo; Gallinas semipesadas; Ponedoras; Yuca: Manihot esculenta, Crantz; Aves de corral; Alimentación animal; Maíz; Plátano
• Rights: openAccess
• License: Atribución-NoComercial-CompartirIgual 2.5 Colombia (CC BY-NC-SA 2.5 CO)