Journal of Applied Sciences1812-56541812-5662Asian Network for Scientific Information10.3923/jas.2019.763.770in vitro Methane Production Potentials of Some Agro-industrial By-products and Crop Residues]]>MelesseAberra SteingassHerbert SchollenbergerMargit RodehutscordMarkus 82019198Background and Objective: Crop production provides a range of agro-industrial by-products and crop residues that have been utilized by ruminants and non-ruminants. However, they are also potential sources of methane emission. Moreover, limited information is available on the methane production profiles of these by-products and crop residues. Thus, this study was conducted to evaluate the chemical, mineral and amino acid compositions and methane production profiles of agro-industrial by-products and crop residues. Materials and Methods: Feed samples of agro-industrial by-products and crop residues were collected and processed and ground to pass 1 mm sieve size. Chemical, mineral and amino acid compositions were analyzed using standard procedures. In vitro gas and methane production profiles were determined according to established procedures. Results: Meat and bone meal (MBM) and fish offal waste (FOW) contained high crude protein (574 and 487 g kg1 DM, respectively). Calcium and phosphorous concentrations in MBM were 67.6 and 36.1 g kg1 DM, respectively. Fat content in FOW was highest followed by MBM. Wheat bran had the highest starch (387 g kg1 DM) and noug seed cake (NSC) the highest iron (4383 g kg1 DM) and manganese (189 g kg1 DM). The NSC contained higher concentrations of arginine, cystein, methionine and histidine than those of wheat bran. Methane production was highest (p<0.05) in wheat bran while it was lowest (p<0.05) in FOW. Conclusion: The FOW and MBM might be used as suitable feed combinations with crop residues to mitigate methane emission from the livestock agriculture.]]>Tolera, A.,20082008Syume, M. and B.S. Chandravanshi,2015Guizotia abyssinica (L. f.) Cass.) cultivated in different parts of Ethiopia.]]>29341355Tera, A., T. Neggese and A. Melesse,2009327580Negesse, T. and A. Tera,2010424554Yanti, Y. and M. Yayota,201756576Castellanos-Navarrete, A., P. Tittonell, M.C. Rufino and K.E. Giller,20151342435Shamsi, I.H., N. Hussain and L. Jiang,20122012pp: 209-220pp: 209-220Tolera, A., T. Berg and F. Sundstol,199979165177Negesse, T., H.P.S. Makkar and K. Becker,2009in vitro gas method.]]>154204217VDLUFA.,2007Menke, K.H. and H. Steingass,1988in vitro gas production using rumen fluid.]]>28755Menke, K.H., L. Raab, A. Salewski, H. Steingass, D. Fritz and W. Schneider,1979in vitro.]]>93217222Blummel, M., E. Zerbini, B.V.S. Reddy, C.T. Hash, F. Bidinger and D. Ravi,200384123142SAS.,2012Version 9.4,Kassahun, A., H. Waidbacher and W. Zollitsch,20122012Hagos, T. and S. Melaku,2009Eragrostis tef) straw supplemented with graded levels of concentrate mix.]]>41599606Hendriks, W.H., C.A. Butts, D.V. Thomas, K.A.C. James, P.C.A. Morel and M.W.A. Verstegen,20021515071516Adedokun, S.A. and O. Adeola,20058325192526Dale, N.,19976169173Hossain, M.A. and K. Becker,2001Sesbania seeds and their morphological fractions.]]>73421431Singh, S., B.V. Bhat, G.P. Shukla, K.K. Singh and D. Gehrana,201864252Singh, S., B.P. Kushwaha, S.K. Nag, A.K. Mishra, S. Bhattacharya, P.K. Gupta and A. Singh,2011In vitro methane emission from Indian dry roughages in relation to chemical composition.]]>1015765Melaku, S., K.J. Peters and A. Tegegne,2003In vitro and in situ evaluation of selected multipurpose trees, wheat bran and Lablab purpureus as potential feed supplements to tef (Eragrostis tef) straw.]]>108159179NRC.,20017th Rev. Edn.,405405Paterson, J.A., R.C. Cochran and T.J. Klopfensteinm,19961996pp: 94103Getachew, G., P.H. Robinson, E.J. DePeters, S.J. Taylor, D.D. Gisi, G.E. Higginbotham and T.J. Riordan,2005in vitro gas technique.]]>123-124391402Inthapanya, S. and T.R. Preston,2014in vitro fermentation.]]>2014Melesse, A., H. Steingass, M. Schollenberger and M. Rodehutscord,2018in vitro gas and methane production profiles of fruit by-products and leaves of root crops.]]>156949958Sauer, F.D., V. Fellner, R. Kinsman, J.K. Kramer, H.A. Jackson, A.J. Lee and S. Chen,199876906914Dohme, F., A. Machmuller, A. Wasserfallen and M. Kreuzer,2001324751Castro-Montoya, J., S. de Campeneere, G. van Ranst and V. Fievez,2012in vitro methane and VFA production.]]>1764760Melesse, A., H. Steingass, M. Schollenberger, J. Holstein and M. Rodehutscord,2017in vitro methane production profiles of leaves and whole pods of twelve tropical multipurpose tree species cultivated in Ethiopia.]]>93135147Melesse, A., H. Steingass, M. Schollenberger and M. Rodehutscord,2017in vitro.]]>5163175Blummel, M., D.I. Givens and A.R. Moss,2005in vitro gas procedure.]]>123379390