Sistemas de armazenagem de milho para pequenas propriedades produtoras de suinos

AUTOR(ES)
DATA DE PUBLICAÇÃO

1989

RESUMO

Research was conducted to study the efects of storage corn systems on quantitative and qualitative damage by insects, fungi and moisture content in storage of grains. The systems studied were: corn stored in bulk, (T1) and ear of corn stored without straw (T2) in metalic silos; corn stored with straw in wooden warenhouses (T3) and corn stored on aerobical conditions (in field) with fold plants and ears up side down (T4). The experiment was conducted in the CNPSA-EMBRAPA, Concórdia-SC, Brasil, and corn variety Cargil 408 was utilized. Treatment T1 and T2 the corn was artificially dried eiter harvest until the reached about 13%, whereas the others were naturally dried. The treatments T1, T2, and T3 after one month of storage were fumigated with phosphine. The storage time was 8 months, for all treatments, with exception of the treatment T4 that was stored by 6 months. The parameters studied were: grains moisture content, gross energy, grude protein, petroleum ether-extractable lipids, grude fiber, amino acids, weight loss, degree of insects damage and aflatoxin. Laboritory analysis were realized every 2 months. The data for each parameter with exception of amino acids and aflatoxin analysis, were analyzed by using the procedure of SAS (1985). F-Tests was used for comparisons of treatment means. The climatologics data were obtained on the observatory metereological station, in the CNPSA-EMBRAPA. The month average of relative humitity of air during the experimental period, it was always above 68%.The higher weight loss was observed in wooden warehouse (18,90%) and the lowest in corn stored in bulk 2,33%) in the 8 months of storage. The weight loss of corn stored on aerobical condition (in field) by 6 months was 13.50%, being of 6 times bigger than the observed during the same period as compared with those stored in bulk system. Based on the results obtained we conclued that corn stored in bulk on metalic silo system showed smaller quantitative and qualitative damage as compared with those ear of corns without straw under wooden warehouse as well as in field systems in decrescent order respectivelly

ASSUNTO(S)

milho - armazenamento

ACESSO AO ARTIGO

Documentos Relacionados