Volume 13, Issue 47 (fall 2009)
2009, 13(47): 485-493 |
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SHahbazi H, Sadeghi A, Fazaeli H, Reis ali G, CHamani M. Effects of Electron-Beam Irradiation on the Dry Matter, Neutral and Acid Detergent Fiber Degradation Parameters of Sugarcane Bagasse. Journal of Crop Production and Processing 2009; 13 (47) :485-493
URL: http://jcpp.iut.ac.ir/article-1-1070-en.html
URL: http://jcpp.iut.ac.ir/article-1-1070-en.html
, hossein_shahbazi39@yahoo.com
Abstract: (23275 Views)
In this research, samples of sugarcane bagasse were irradiated with various amounts (0, 100, 200 and 300 Kilogray) in an electron accelerator (TT200) to evaluate the effects of electron-beam irradiation on dry matter, neutral-detergent fiber (NDF) and acid-detergent fiber (ADF) degradability parameters. The first samples were dried and then ground for chemical analysis. The ruminal degradation parameters of the samples were measured in fistulated cow 3 (400 kg) at times of 0, 6, 12, 24, 48, 72 and 96 h by the terylene bag method. Data were fitted to non-linear degradation model of Orskov and McDonald to calculate degradation parameters of DM, NDF and ADF. The statistical analysis of degradation of various parameters and effective degradability was accomplished by using the GLM procedure of SAS. After variance analysis, the means were compared with Duncan,s new multiplerange test by using a completely randomized design. The washout fractions of DM as well as NDF and ADF increased linearly (P<0.05) with increasing electron irradiation dose, whereas the potentially degradable fractions of NDF and ADF decreased at first, and then, increased. Also, the degradation rate of the b fraction of dry matter increased. Effective degradability of DM, NDF and ADF increased linearly (P<0.05) with increasing irradiation dose. Electron irradiation at doses of 100, 200 and 300 kGy increased the effective degradability of DM, NDF and ADF at rumen outflow rate of 0.05/h (r) by about 7, 11 and 16% 2, 5 and 7% 3, 7 and 10%, respectively.
Keywords: Electron irradiation, Sugarcane bagasse, Degradability parameters, Dry matter, neutral and acid detergent fiber.
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