Nutritional Characteristics of Dominant Wild-Plant Species in Salt-Accumulated Grasslands Producing a Local Sheep Breed with High Twinning Rate in Harigabi, Inner Mongolia

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著者

    • ISHIKAWA Naoto
    • Faculty of Life and Environmental Sciences, University of Tsukuba
    • KIMURA Yae
    • Faculty of Life and Environmental Sciences, University of Tsukuba
    • SAWADO Rie
    • Faculty of Life and Environmental Sciences, University of Tsukuba
    • ALATENGDALAI
    • Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences
    • TAJIMA Atsushi
    • Faculty of Life and Environmental Sciences, University of Tsukuba

抄録

In Harigabi, Inner Mongolia, farmers use salt-accumulated grasslands as autumn grazing area with halophytes for ewe on the assumption that this feeding practice increases the twinning rate. We suggested that nutrients in halophytes might be a possible factor fort the increase of the ovulation rate. To test this hypothesis, we surveyed the feeding practices and performed chemical analyses of forage plants. The survey revealed that the average litter size increased from 1.1 to 1.5 when ewes first grazed on a typical grassland with Poaceae from spring to summer (S–S grassland) and then grazed on a salt-accumulated grassland from autumn to spring (A–S grassland). The chemical analysis revealed that halophytes of the A–S grassland tended to contain higher concentrations of sugar and starch than the dominant plants of the S–S grassland. These results might indicate that the higher soluble carbohydrates in halophytes could be a possible cause of the higher twinning rate of sheep in Harigabi.

収録刊行物

  • 熱帯農業

    熱帯農業 60(1), 10-13, 2016

    日本熱帯農業学会

各種コード

  • NII論文ID(NAID)
    130005144436
  • 本文言語コード
    ENG
  • ISSN
    1882-8450
  • データ提供元
    J-STAGE 
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