
	Journal of Biological Sciences
	Year: 2011 \| Volume: 11 \| Issue: 7 \| Page No.: 442-447 DOI: 10.3923/jbs.2011.442.447

An in vitro Evaluation of Pleurotus ostreatus EM-1-modified Maize (Zea mays) Cob as a Non-conventional Energy Source for Livestock in Ghana

N.A. Adamafio, D.A. Annan, V. Amarh, G.O. Nkansah and M. Obodai

Abstract: Treatment with Pleurotus ostreatus strain EM-1 recently has been proposed as an effective means of transforming maize cob into nutritive animal feed for livestock production in the West African sub-region. This study compares P. ostreatus strain EM-1-treated maize cob with peels of cassava and plantain, widely-accepted complementary feedstuffs in West Africa, in terms of in vitro biodegradability and composition. Subjection of milled maize cob samples to solid state fermentation by P. ostreatus strain EM-1, until complete mycelial colonization, resulted in an increase of 107.3% in cell extractives and a 41.2% reduction in lignin content. The cellulose content of the treated maize cob exceeded that of plantain peel and cassava peel by 44.9 and 71.2%, respectively, while protein and lipid content did not differ significantly from mean values obtained for cassava peel. Cellulosic sugar production from treated maize cob, measured at 37°C for up to 3 h in the presence or absence of 0.05 U mL^-1 cellulase, surpassed that of cassava peel by 52.3% (p<0.05) but was significantly lower than that of plantain peel. The data indicate that the potential metabolizable energy of P. ostreatus strain EM-1-modified maize cob far exceeds that of cassava peel. Based on the present findings, maize cob treated with P. ostreatus strain EM-1 should serve as an excellent complementary energy source for small ruminants in the West African sub-region.

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How to cite this article:

N.A. Adamafio, D.A. Annan, V. Amarh, G.O. Nkansah and M. Obodai, 2011. An in vitro Evaluation of Pleurotus ostreatus EM-1-modified Maize (Zea mays) Cob as a Non-conventional Energy Source for Livestock in Ghana. Journal of Biological Sciences, 11: 442-447.

DOI: 10.3923/jbs.2011.442.447

URL: https://scialert.net/abstract/?doi=jbs.2011.442.447

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