The comparison of digestibility of treated sugarcane tops silage by bacteria or whole microorganisms of Holstein cow and buffalo rumen

Authors

  • Afrooz Sharifi Graduate Student of Animal Nutrition, Ramin Agriculture and Natural Resources University of Khouzestan, Ahvaz, Iran
  • Morteza Chaji Department of Animal Science, Ramin Agriculture and Natural Resources University of Khouzestan, Ahvaz, Iran
  • Tahereh Mohammadabadi Department of Animal Science, Ramin Agriculture and Natural Resources University of Khouzestan, Ahvaz, Iran
Abstract:

The aim of this study was to evaluate the effects of adding sulfuric acid to sugarcane topssilage on rumen bacteria and whole rumen microorganisms (WRM) and compare the digestibility of sugarcane tops treated with different amount of urea, molasses and sulfuric acid between Holstein cow and Khouzestan buffalo. Regardless of the type of the treatment, potential of gas production (B) by cow WRM (130.670 mL) was more than buffalo (104.060 mL) (p < 0.05), but the rate of gas production (C) by buffalo WRM was greater than cow (0.021 and 0.014 mL per hr, respectively) (p < 0.05). The C in treatment containing only 2.40% sulfuric acid (0.033 mL per hr) was significantly highest (p < 0.05). Regardless of the type of the treatment, the B by cow rumen bacteria (75.040 mL) was more than buffalo (67.150 mL), (p < 0.05), while the C by rumen bacteria of buffalo (0.030 mL per hr) was more than cow (0.017 mL per hr), (p < 0.05). Regardless of the type of the animal, the B coefficient of rumen bacteria in treatment only containing 2.40% sulfuric acid was higher than control (p < 0.05). Therefore, the addition of sulfuric acid not only had no negative effect on microorganisms particularly bacteria, but also probably due to present of sulfur in acid, had positive effect on nutrients digestibility, and growth of microorganisms. The digestibility of sugarcane tops silage treated by cow rumen bacteria and whole microorganisms was higher than buffalo.

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Journal title

volume 7  issue 3

pages  203- 211

publication date 2016-09-01

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