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vol.52 issue5Influence of glutamine supplementation on performance and intestinal villous and crypt development in broiler chickensEvaluation of silages from seven sorghum genotypes [(Sorghum bicolor (L) Moench)]. III. Nutritive value author indexsubject indexarticles search
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Arquivo Brasileiro de Medicina Veterinária e Zootecnia

Print version ISSN 0102-0935On-line version ISSN 1678-4162

Abstract

BRITO, A.F. et al. Evaluation of silages from seven sorghum genotypes [(Sorghum bicolor (L) Moench)]. II. Fermentation patterns. Arq. Bras. Med. Vet. Zootec. [online]. 2000, vol.52, n.5, pp.491-497. ISSN 0102-0935.  http://dx.doi.org/10.1590/S0102-09352000000500015.

Four sorghums of high size, moist and sugary stem, and three sorghums of small size, dry and sugarless stem and without sugar were used in order to determine the dry matter, crude protein (CP), amoniacal nitrogen, pH and alcohol soluble carbohydrates values. The CMSXS156, a small size sorghum showed the highest value of dry matter (33.6%) on 28 days of ensilage. The low size genotypes had an average 8.8% of CP and the high size 5%, probably due to the higher leaf and panicle proportions in small size sorghums. The average pH of the silages on 56th day of fermentation was 3.6 with a range of 3.5 to 3.8, and the mean of ammonia nitrogen was 5.3% showing that the silages had a suitable fermentative process. The mean value of alcohol soluble carbohydrates was 9.7% ranging from 13.2 to 16.5% for high and from 2.2 to 4.0% for small size genotypes.

Keywords : Silage; sorghum; soluble carbohydrates; dry matter; crude protein.

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