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Applied clay science v.138, 2017년, pp.125 - 130   SCI SCIE
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

Effects of raw and heated palygorskite on rumen fermentation in vitro

Zeng, H.F. (Institute of Dairy Science, College of Animal Science and Technology, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China ); Lin, L.J. (Fujian Animal Husbandry Station, 123 Hualian Road, Fuzhou 350003, China ); Xi, Y.M. (Institute of Dairy Science, College of Animal Science and Technology, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China ); Han, Z.Y. (Institute of Dairy Science, College of Animal Science and Technology, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China );
  • 초록  

    Abstract To investigate the effect of raw and heated palygorskite on rumen fermentation in an in vitro gas-production system, 54 incubators were evenly divided into three groups: control (0% palygorskite), treatment I (3% raw palygorskite) and treatment II (3% heated palygorskite). The effect of heated modification on the microstructure of palygorskite was investigated by X-ray diffraction and scanning electron microscopy analyses. The physicochemical features were evaluated by zeta potential analysis, cation-exchange capacity, ethylene blue absorption and specific surface area (the BET method). Gas production (GP) was recorded at 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22 and 24h of incubation in vitro . The 18 incubators from each group were stopped at 6h, 12h and 24h, respectively, and the inoculants were determined for rumen fermentation parameters. The results showed that the GP in the treatment groups was higher than in the control group starting at 4h of incubation ( P P P P P P P P 3 -N in the treatment I group was higher than in the control group at 24h ( P P Highlights The thermal treatment process does not evidently damage the crystal structure of palygorskite. The adsorption capacity of heated palygorskite was increased. Supplemental raw and heated palygorskite improve rumen microbial fermentation. Supplemental palygorskite promotes VFA formation and nitrogen use, especially heated palygorskite. Supplemental raw and heated palygorskite affect rumen pH value.


  • 주제어

    Palygorskite .   Heat treatment .   Rumen fermentation .   In vitro .   Dairy cow.  

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