Effect of stage of harvest on the yield, chemical composition, in vitro and in sacco digestibility of hybrid napier (Penniserum purpureum) variety APB N1
 

DOI: 10.18805/ijar.v0iOF.6994    | Article Id: B-2987 | Page : 116-120
Citation :- Effect of stage of harvest on the yield, chemical composition, in vitro and in sacco digestibility of hybrid napier (Penniserum purpureum) variety APB N1 .Indian Journal Of Animal Research.2017.(51):116-120

C.H. Jagadeesh1, Y. Ramana Reddy1, D. Nagalakshmi1, M. Mahender2, N. Nalini Kumari1, K. Sridhar1* and K.B. Suneetha Devi3

sri.vety@gmail.com
Address :

Department of Animal Nutrition, College of Veterinary Science, Rajendranagar, Hyderabad - 500 030, India.

Submitted Date : 11-04-2015
Accepted Date : 28-11-2016

Abstract

APBN1, a variety of hybrid napier was analysed at five stages of harvest (30, 40, 45, 50 and 60 days) for yield, leaf to stem ratio, chemical composition, in vitro dry matter digestibility, in sacco dry matter and protein degradation to find out optimum stage of harvesting. The yield of green fodder, dry matter (DM) and crude protein (CP) (MT/ ha/year) of forage harvested at 30, 40, 45, 50 and 60 days of growth ranged from 274.68 to 387.95, 47.35 to 98.81, 7.44 to 11.45, respectively. Highest (P<0.05) CP yield (11.45 MT/ha) and nitrogen free extract content (46.12%) was observed at 45 d of growth. Crude protein (15.72 to 11.34%), ether extract (3.65 to 2.26%) decreased, whereas total ash (10.88 to 13.86%), crude fibre (23.81 to 29.88%) and acid insoluble ash (3.92 to 5.14%) levels increased when forage was allowed to grow from 30 to 60 d. Similarly, NDF, ADF, hemicellulose, cellulose, lignin and silica levels also increased gradually as plant matures. The in vitro dry matter digestibility was maximum (57.87%) at 30 d and minimum (51.40%) at 60 d of growth. Effective dry matter and protein degradability decreased from 55.80 to 43.78 and from 38.30 to 33.17 per cent, respectively as plant matured from 30 to 60 days. The insoluble but degradable protein fraction ‘b’ was highest (77.07%) at 45 d of growth. Based on the biomass yield, leaf to stem ratio, chemical, in vitro and in sacco evaluation, the optimum stage of harvesting for APBN1 forage was found to be at 45 d of growth.      

Keywords

APBN1 Biomass yield Chemical composition In sacco degradability In vitro digestibility.

References

  1. Aganga, A.A., Omphile, U.J., Thema, T. and Baitshotlhi, J.C. (2005). Chemical composition of napier grass (Pennisetum purpureum) at different stages of growth and napier grass silages with additives. J. Biol. Sci. 5: 493-496.
  2. Ansah, T., Osafo, E.L.K. and Hansen, H.H. (2013). Variety, harvest date after planting and plant fraction of Napier grass influence in vitro gas production. Livestock Res. Rural Develop. 25: 78.
  3. AOAC, (1997) Official Method of Analysis, 16th ed., Association of Official Analytical Chemists, Washington DC.
  4. Basyble, T., Melaku, S. and Prasad, N.K. (2007). Effects of cutting dates on nutritive value of Napier (Pennisetum purpureum) grass planted sole and in association with Desmodium (Desmodium intortum) or Lablab (Lablab purpureus). Livestock Res. Rural Develop. 19: 120-136.
  5. Bora, S., Bhuyan, R., Sarma, D.N., Sharma, K.K. and Bora, A. (2012). Effect of Variety and Stage of Harvest on the Yield, Chemical Composition and In-vitro Digestibility of Hybrid Napier (Pennisetum purpureum×P. americanum). Indian J. Anim. Nutr. 28: 418-420.
  6. Duncan, D.B. (1955). Multiple range and multiple F tests, Biometrics 11: 1–42.
  7. Gupta, S.C. and Mhere, O. (1997). Identification of superior pearl millet by Napier hybrids and napiers in Zimbabwe. African Crop Sci. J. 5: 229-237.
  8. Kempton, T.J. (1980). The use of nylon bags to characterise the potential degradability of feeds for ruminants. Tropic. Anim. Prod. 5: 107-116.
  9. Kozloski, G.V., Perottoni, J., Ciocca, M.L.S., Rocha, J.B.T., Raiser, A.G. and Sanchez, L.B. (2003). Potential nutritional assessment of dwarf elephant grass (Pennisetum purpureum Schum. cv. Mott) by chemical composition, digestion and net portal flux of oxygen in cattle. Anim. Feed Sci. Technol. 104: 29-40.
  10. McDonald, I. (1981). A revised model for the estimation of protein degradability in the rumen. The J. Agricul. Sci. 96: 251-252.
  11. McDonald, P., Edwards, R.A., Greenhalgh, J.F. and Morgan, C.A. (2002). Animal Nutrition person education (Singapore) Pvt.Ltd., Delhi pp. 495-514.
  12. Orskov, E.R. and McDonald, I. (1979). The estimation of protein degradability in the rumen from incubation measurements weighed according to rate of passage. J. Agricul. Sci. 92: 499-503. 
  13. Reddy, D.V., Tiwari, C.M., Elanchezhian, N. and Maheswari, D.U. (2009). Evaluation of supplementary feeding value of local tree foliages in goats fed on Napier Bajra green fodder. Anim. Nutr. Feed Technol. 9: 155-163.
  14. Snedecor, G.W. and Cochran, W.G. (1994). Statistical methods, 8th ed., (Iowa State University Press, Ames, Iowa, USA).    Talapatra, S.K., Ray, S.C. and Sen, K.C. (1940). The analysis of mineral constituents in biological materials. 1. Estimation of phosphorus, chlorine, calcium, magnesium, sodium and potassium in food stuffs. Indian J. Vet. Sci. 10: 243-258.
  15. Tang, S.X., Gan, J., Sheng, L.X., Tan, Z.L. and Tayo, G.O. (2008). Morphological fractions, chemical composition and in vitro fermentation characteristics of maize stover of five genotypes. Anim. 12: 1772-1779.
  16. Tilly, J.M.A. and Terry, R.A. (1963). A two-stage technique for the in vitro digestion of forges crops. J. British Grass land society. 18: 104-111.
  17. Van Soest, P.J., Robertson, J.B. and Lewis, B.A. (1991). Methods for dietary fiber, neutral detergent fiber and non-starch polysaccharides in relation to animal nutrition. J. Dairy Sci. 74: 3583-3597.
  18. Vogel, R.P. and Sleeper, D.A. (1994). Alteration of plants via genetics and plant breeding In: Forage Quality Evaluation and Utilization (eds. J. George and C. Fahey), American Society of Agronomy, Madison, WI, pp. 891-921.
  19. Ward, G.M. and Johnston, F.B. (1962). Chemical Methods of Plants Analysis, Publ.1064. Research Branch, Canada, Department of Agriculture. 
     

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