African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6801

Full Length Research Paper

Proximate compositions of some forage grasses and legumes as influenced by season of harvest

Onyeonagu, C. C.* and Eze, S. M.
Department of Crop Science, University of Nigeria, Nsukka, Enugu State, Nigeria.
Email: [email protected]

  •  Accepted: 15 May 2013
  •  Published: 01 August 2013


This study was conducted in Nsukka, Nigeria to evaluate the effect of season of harvest (rainy and dry seasons) on the proximate compositions of 5 legumes (Calapogonium mucunoides, Stylosanthes hamata cv.Verano, Centrosema pubescensPueraria phaseoloides and Stylosanthes guyanensis cv. Cook) and 5 grasses (Sorghum almum, Panicum maximum, Cynodon nlemfuensisPennisetum purpureum andAndropogon gayanus). The experiment was a 2 × 5 factorial laid out in completely randomized design (CRD). Among the grasses and the legumes, the concentrations of ash and crude protein (%CP) were significantly higher (P < 0.05) in rainy season than in dry season. The %fat in grass species was significantly (P < 0.05) higher in rainy season than in dry season. C. pubescens significantly produced the highest %CP compared with other legumes, while P. phaseoloides significantly (P < 0.05) had the least %CP value which was similar with that from S. hamataC. mucunoides harvested in rainy season produced %CP that was significantly (P < 0.05) higher than the values obtained with C. pubescensS. hamata, or P. phaseoloides in any season. P. maximum harvested in rainy season significantly (P < 0.05) had the highest %CP compared with other grasses in any season. P. purpureum harvested in rainy season significantly (P < 0.05) yielded the highest %ash compared with other grass species in any season, while A. gayanus harvested in rainy season significantly gave higher %fat and %crude fibre than other grasses.


Key words: Crude protein, %ash, %fat, crude fibre content, grasses, legumes, seasonal variation.