Chemical and fermentative changes during the storage period of the sugar cane silage with or without ground dried ear corn

Revista Brasileira de Zootecnia

Rezende, Adauton Vilela de³  Lopes, Jalison¹  Siqueira, Gustavo Rezende²  Evangelista, Antônio Ricardo¹  Lima, Josiane Aparecida de⁴ 

[1] UFLA;Pólo Regional do Desenvolvimento Tecnológico dos Agronegócios da Alta Mogiana, Colina;UNIFENAS;Instituto de Zootecnia, Nova Odessa

关键词: additives;    chemical composition;    ensilage   Introdução Diversas forrageiras;    como o milho e o sorgo;    têm potencial para ensilagem;    porém é necessário o estudo de volumosos suplementares alternativos;    não objetivando sua substituição;    mas visando à sustentabilidade dos sistemas de produção;   

DOI  :  10.1590/S1516-35982009000100003

学科分类：兽医学

来源: Universidade Federal de Vicosa

【 摘 要 】

The chemical and fermentative changes of the sugar cane ensiled without or with (control) ground dried ear corn (GDEC) were evaluated during 100 days of storage period. The pH values, buffer capacity (BC), dry matter (DM), crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), hemicellulose (HM) ammonia nitrogen in relation to the total nitrogen (N-NH3/TN) were evaluated. The experiment was conducted in a complete randomized design as a factorial (2 × 21) scheme with three replications. The factor A was composed of sugar cane silage with or without GDEC, and the factor B was the 21 storage periods. The data were submitted to the regression analyses. The pH values decreased in the first five days of storage, from 5.2 to 3.5 and from 5.2 to 3.6, respectively on the silage without and with GDEC. Silages with GDEC showed higher pH values when compared to the control, on average of 0.09 units. The inclusion of GDEC resulted in higher N-NH3/TN values in all storage periods. In the control silage, the reduction on the DM content was 14.1 units and 8.8 units for those with GDEC. The inclusion of GDEC resulted in the reduction of 17.0 units in the NDF, probably due to the low fiber content of the additive. Sugar cane silage presents chemical changes up to 100 days of storage, and should not remain stored for long periods.

【 授权许可】

CC BY-NC