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Media Kedokteran Hewan

ISSN 2015-8930

Vol. 21 / No. 3 / Published : 2005-09

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Original Article :

The role of cutting and nitrogen fertilization on the quality of sweet sorghum (sorghum bicolor l. moench) forage.

Author :

      Abstract :

      Sorghum species as forage crop may cause problem, because under certain condition it produces durrin, which will further breakdown to form prussic acid (HCN). Prussic acid are potentially toxic to ruminants, and the fatal concentration is 500 ppm. The aims of this research were to find out the role of cutting age as well as nitrogen (N) fertilization on the quality of sweet sorghum forage. The method were three cutting age (30, 40 and 60 days) and four level N fertilization (0, 100, 200 and 300 kg N/hectare). The quality of forage were observed of the content: Crude Protein (CP), Crude Fiber (CF) and HCN. The design applied was Factorial Randomized Block Design. The data were statistically evaluated by analysis of variances and significances beetwen means were tested by using honestly significant difference method. The result showed crops with moderate cutting ages (40 days) produce good quality of forage (CP = 13.65 %, CF = 28.17 %, HCN = 222–253 ppm) and optimum vegetative growth.

      Keyword :

      forage, durrin, prussic acid, vegetative growth,


      References :



           


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