Calidad composicional del ensilaje de tres cultivares de maíz (Zea mays) del trópico alto colombiano
| Autor: | Mancipe-Muñoz, Edgar A., Castillo-Sierra, Javier, Vargas-Martínez, Juan de J., Avellaneda-Avellaneda, Yesid |
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| Jazyk: | Spanish; Castilian |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Agronomía Mesoamericana; Agronomía Mesoamericana: Vol. 33, Issue 2 (May-August).; 46412 Agronomía Mesoamericana; Agronomía Mesoamericana: Vol. 33, Nº 2 (mayo-agosto).; 46412 Portal de Revistas UCR Universidad de Costa Rica instacron:UCR |
| ISSN: | 2215-3608 1021-7444 |
| Popis: | Introduction.The elaboration of high-quality corn-silage is a strategy to improve the efficiency of ruminant feeding systems.Objective.To evaluate the effect of cob proportion and sealing time on the compositional quality of silage of three maize cultivars in the Colombian high tropic, harvested in the reproductive phase of milky-pasty grain.Materials and methods.The experiment was conducted in 2017 in Mosquera, Colombia, with the cultivars Simijaca, Medellín, and Pionner. Experiment 1, four different proportions of cob were generated in the silage. Experiment 2, the biomass was ensiled at 0, 8 or 16 hours of wilted. Dry matter (DM), crude protein (CP), starch, and neutral detergent (NDF) and acid detergent (ADF) fibers were determined. The dynamic of pH decrease was evaluated. The effect of cob proportion and wilting time on the DM, OM, and NDF digestibility was determined only in the Simijaca cultivar. Compositional quality and pH dynamics were analyzed using a completely randomized design with a factorial arrangement, while digestibility was analyzed using a completely randomized design.Results.The Medellín cultivar showed lower cob proportion and starch concentration (11.9 %) (p |
| Databáze: | OpenAIRE |
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