RESEARCH PAPER

Effects of Mixed Silage of Sugarcane Top or Sugarcane and Broussonetia papyrifera Leaf on Its Fermentation Quality

  • ZHOU Xiaokang ,
  • ZHANG Nanji ,
  • ZHANG Jie ,
  • GU Qichao ,
  • ZHENG Yimin ,
  • MA Yanqun ,
  • ZOU Caixia
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  • College of Animal Science and Technology, Guangxi University, Nanning 530003, China

Received date: 2021-05-13

  Online published: 2022-01-18

Abstract

This experiment was conducted to investigate the effects of mixed silage of sugarcane top or sugarcane and Broussonetia papyrifera leaf on fermentation quality through mixed silage, and provide scientific basis and technology for improving the utilization rate of unconventional feed resources in Guangxi and the practical application of mixed silage support. Experiment 1:mixed silage of sugarcane top and Broussonetia papyrifera leaf; experiment 2:mixed silage of sugarcane and Broussonetia papyrifera leaf. The mixing ratios of the two raw materials were 100:0, 75:25, 50:50, 25:75 and 0:100, respectively. The results of experiment 1 showed as follows:1) compared with sugarcane top silage alone, the sugarcane top mixed silage with Broussonetia papyrifera leaf increased the crude protein (CP) and acetic acid content of the mixed silage, and increased the growth rate of acetic acid and propionic acid content after aerobic exposure, and also reduced the number of enterobacteria (P<0.05). 2) Compared with Broussonetia papyrifera leaf silage alone, Broussonetia papyrifera leaf mixed silage with sugarcane top significantly increased the water-soluble carbohydrates (WSC) content of the mixed silage (P<0.05); when 25% Broussonetia papyrifera leaf mixed with 75% sugarcane top silage, it could significantly reduce the pH and ammoniacal nitrogen (NH3-N) content of mixed silage (P<0.05). The results of experiment 2 showed as follows:1) compared with sugarcane silage alone, sugarcane mixed silage with Broussonetia papyrifera leaf significantly reduced the ethanol content of the mixed silage (P<0.05). 2) Compared with Broussonetia papyrifera leaf silage alone, Broussonetia papyrifera leaf mixed silage with 75% sugarcane significantly increased the contents of CP, WSC, lactic acid and acetic acid of the mixed silage (P<0.05), while significantly reduced the pH, NH3-N and butyric acid contents (P<0.05), and made the pH of the mixed silage more stable after aerobic exposure, while greatly inhibiting the growth of molds. In summary, when mixed with Broussonetia papyrifera leaf, the proportion of sugarcane is 75% can significantly improve the fermentation quality of the mixed silage; while the proportion of sugarcane top exceed 75% can obviously improve the fermentation quality of the mixed silage.

Cite this article

ZHOU Xiaokang , ZHANG Nanji , ZHANG Jie , GU Qichao , ZHENG Yimin , MA Yanqun , ZOU Caixia . Effects of Mixed Silage of Sugarcane Top or Sugarcane and Broussonetia papyrifera Leaf on Its Fermentation Quality[J]. Chinese Journal of Animal Nutrition, 2022 , 34(1) : 516 -532 . DOI: 10.3969/j.issn.1006-267x.2022.01.048

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