Nutritive value of diferents silage sorghum (Sorghum bicolor L. Moench) cultivares - doi: 10.4025/actascianimsci.v34i2.12853

Luis Felipe Pereira Borba, Marcelo de Andrade Ferreira, Adriana Guim, José Nildo Tabosa, Luiz Henrique dos Santos Gomes, Viviany Lúcia Fernandes dos Santos

Resumo


Nutrition values of silages from different sorghum cultivars are evaluated. Five 26-kg castrated crossbred lambs, housed in pens equipped with feces and urine collectors for the study of their metabolism, were employed in a 5 x 5 Latin square experimental design. Treatments consisted of silage from five different sorghum cultivars: IPA 1011 and IPA 2564 (grain sorghum), IPA 2502 (dual purpose sorghum), IPA FS-25 and IPA 467 (forage sorghum). Protein level was corrected to 12% by adding a mixture of urea: ammonium sulfate (9:1). Treatments IPA 1011, IPA 2564 and IPA 2502 provided high intake of dry matter, total carbohydrate and total digestible nutrients, and low intake of neutral detergent fiber. Cultivars IPA 1011 and IPA 2564 provided high apparent crude protein digestibility coefficient, whereas cultivars IPA 1011 and IPA 2564 had high total digestible nutrient levels. All cultivars provided positive nitrogen. Owing to nutrient intake and digestibility values, grain sorghum silages evidenced high potential in ruminant nutrition.


Palavras-chave


nitrogen balance; composition; intake; digestibility; forage

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DOI: http://dx.doi.org/10.4025/actascianimsci.v34i2.12853





ISSN 1806-2636 (impresso) e ISSN 1807-8672 (on-line) e-mail: actaanim@uem.br

 

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