Performance of beef cattle bulls in feed lots and fed on diets containing enzymatic complex
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Data
2015-06
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Resumo
Current paper evaluates the performance of confined beef cattle supplemented with
amylolytic enzyme complex produced by fungus Aspergillus awamori and a commercial product containing
multienzyme complex, yeast and MOS. Treatments comprised control (basal diet composed of 16%
Mombasa grass silage, 66% ground corn, 3% vitamin nuclear mineral and 15% cottonseed meal), amylase
treatment (control diet with the addition of 48.7 saccharifying units kg -1 diet) and compound treatment
(control diet with the addition of enzymatic complex composed of 83.2 saccharifying units, 8.8 fibrolytic
units, 0.05 g of mannan oligosaccharides and 0.2 g of inactivated yeast Kg -1 of the dry matter diet). The
addition of products did not significantly increase daily weight gain, intake, feed conversion and carcass
yield of cattle. There was no difference between in vitro digestibility of dry matter (IVDMD) in the diets.
The percentage of residual fecal starch was not influenced by exogenous amylolytic enzymes of amylase
and compound treatments. The tested products were not able to improve animal performance.
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Palavras-chave
Starch, Ruminant, Biotechnology, Feedlot, Amido, Ruminantes, Biotecnologia, Cconfinamento
Citação
OLIVEIRA, Leonardo Guimarães de; FERREIRA, Reginaldo Nassar; PADUA, João Teodoro; ULHOA, Cirano José; CYSNEIROS, Cristine dos Santos Settimi; ARNHOLD, Emmanuel. Performance of beef cattle bulls in feed lots and fed on diets containing enzymatic complex. Acta Scientiarum. Animal Sciences, Maringá, v. 37, n. 2, p. 181-186, Apr./June 2015.