African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6688

Full Length Research Paper

Effects of season and species on in sacco degradability of forages in the sub-humid subtropical savannah

Nasreldin Abdelrahim Basha
  • Nasreldin Abdelrahim Basha
  • Department of Animal and Poultry Science, University of KwaZulu-Natal, Pietermartizburg, South Africa
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Peter Frank Scogings
  • Peter Frank Scogings
  • Department of Agriculture, University of Zululand, KwaDlangezwa, South Africa
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Fabian Nde Fon
  • Fabian Nde Fon
  • Department of Agriculture, University of Zululand, KwaDlangezwa, South Africa
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Mawahib Alhag Ahmed
  • Mawahib Alhag Ahmed
  • Department of Animal and Poultry Science, University of KwaZulu-Natal, Pietermartizburg, South Africa
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Ignatius Verla Nsahlai
  • Ignatius Verla Nsahlai
  • Department of Animal and Poultry Science, University of KwaZulu-Natal, Pietermartizburg, South Africa
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  •  Received: 28 March 2014
  •  Accepted: 11 March 2015
  •  Published: 12 March 2015

Abstract

Effect of season and plant species on in sacco dry matter (DM) and crude protein (CP) degradability of five plant species were investigated. Plant species were Acacia natalitia, Acacia nilotica, Dichrostachys cinerea, Scutia myrtina and Chromolaena odorata. Leaves were harvested during dry, early wet and late wet seasons, subjected to degradation in cows’ rumen using nylon bags technique. Season affected potential DM degradability and effective degradation of DM and CP. Species affected all parameters except slowly degradable fraction of CP. Interaction between season and species affected the parameters except potential and slowly degradable fraction of CP. Chromolaena odorata had highest estimated parameters of degradation among seasons compared to others. Based on potential and effective degradation, plants followed this decreasing order: C. odorata, A. nilotica, A. natalitia, S. myrtina and D. cinerea. These plants have a potential as feed supplements. C. odorata has the highest potential as feed protein source in ruminants. It concluded that season and species affected in sacco degradability of DM and CP of browse species.

 

Key words: Dry matter, crude protein, Chromolaena odorata, ruminants, nutritive value.