Physical characteristics and nutritional value of stored mulberry (Morus alba) mixed with corn forage.

Mulberry foliage and corn, harvested respectively after 120and 135 days, were ensilaged (chopped and mixed in ratios of100:0, 75:25, 50:50, 25:75 and 0:100 as dry material). Theconcentration of soluble carbohydrates was uniform at 10%in all the treatments by adding molasses. The fermentationperiod w...

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Autor Principal: Boschini Figueroa, Carlos
Formato: Artículo
Idioma: Español
Publicado: Universidad de Costa Rica 2013
Acceso en línea: http://revistas.ucr.ac.cr/index.php/agromeso/article/view/11988
http://hdl.handle.net/10669/17544
Sumario: Mulberry foliage and corn, harvested respectively after 120and 135 days, were ensilaged (chopped and mixed in ratios of100:0, 75:25, 50:50, 25:75 and 0:100 as dry material). Theconcentration of soluble carbohydrates was uniform at 10%in all the treatments by adding molasses. The fermentationperiod was 90 days. The compacted mulberry forage (the100:0 ratio) had a density of 693 kg/m3 and that of the cornforage (the 0:100 ratio) was 541 kg/m3, indicating markedinitial differences (p≤ 0.01) between them. At the end of theexperimental period, the stored material had densities rangingbetween 750 and 556 kg/m3, with intermediate values(p≤0.01) as the mulberry proportion was reduced in eachmixture. Loss of dry material was found among treatments(p≤0.01) with 6.8 kg/m3 and 18.3 kg/m3. The organolepticcharacteristics evaluation had ratings from very good toexcellent in the mixtures with ratios of 75:50, 50:50, 25:75and 0:100, but not in the mulberry forage (100:0) which hasa slight ammonia odor. The concentration of dry matter in thefresh material was higher than that found in the storedmaterial (p≤0.05). The concentration of crude protein amongthe mixtures was clearly differentiated (p≤0.01), in thebeginning as well as at the end of the fermentation period. Asimilar condition was observed in the concentration of neutraldetergent fiber and total ash.