SHORT COMMUNICATION
Effects of ensiling density on chemical and microbiological characteristics of sorghum silage
| 1 | Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina, MG, 39100-000, Brazil |
| 2 | Universidade Federal de Minas Gerais, Montes Claros, MG, 39404-547, Brazil |
| 3 | Instituto Federal de Educação, Ciência e Tecnologia Fluminense, Bom Jesus do Itabapoana, RJ, 28300-000, Brazil |
CORRESPONDING AUTHOR
L.D. da Silva
Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina, MG, 39100-000, Brazil
Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina, MG, 39100-000, Brazil
Publication date: 2017-03-21
J. Anim. Feed Sci. 2017;26(1):65–69
KEYWORDS
TOPICS
ABSTRACT
The aim of the study was to evaluate the effect of ensiling density
on chemical and microbiological characteristics of sorghum silage. Thirty-six minisilos
made of PVC with a volume of 3.1 dm3 were used. A completely randomized
design was used with six replications per each treatment. The treatments differed
in packing density: 300, 375, 450, 525, 600 and 675 kg of fresh forage per m3.
The contents of dry matter (DM), crude protein and the count of lactic acid bacteria
tended to increase with increasing packing density. The highest DM contents
were observed for silages with density of 525 kg · m−3. The contents of organic
matter, water-soluble carbohydrates, ammoniacal nitrogen, acid detergent fibre,
hemicellulose, cellulose and nitrogen insoluble in neutral and acid detergents
were not affected by silage density. However, the contents of neutral detergent
fibre, lignin, pH values, yeast and mould counts and the DM losses tended to
decrease together with increasing silage density. It was observed that the silage
with the highest density resulted in lower DM losses when compared to the silage
densities lower than 525 kg · m−3. So, it can be stated that the minimum density
of sorghum silage ensuring its quality is 525 kg · m−3.
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