ゴールデンハムスターの前胃と前胃上皮の生後発育

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書誌事項

タイトル別名
  • Postnatal Development of the Forestomach and its Epithelium in the Golden Hamster
  • ゴールデンハムスター ノ ゼンイ ト ゼンイ ジョウヒ ノ セイゴ ハツイク

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抄録

In order to compare the postnatal development of the forestomach of the golden hamster with that of the domestic ruminants, the organ weight of the forestomach and hindstomach of golden hamster (Mesocricetus auratus) was measured weekly from birth through weaning at 3 weeks of age. The thickness of each stratum of the forestomach epithelium and its mitotic index were measured histologically. The postnatal growth of the forestomach was nearly linear during the first 7 weeks (Y=0.044827X+0.004011, r=0.9415, Y: forestomach organ weight, X: age in weeks), and reached a plateau at 7 to 8 weeks of age, the forestomach was about half the organ weight of the hindstomach during the first 8 weeks post partum. The growth of the hindstomach was also linear during the first 7 weeks (Y = 0.082242X+0.033233, r=0.9601, Y: hindstomach organ weight, X: age in weeks). The development of both the forestomach and hindstomach is faster than that of the whole body. The relative organ weight per body weight peaked at 3 weeks for the forestomach and at 2 weeks for the hindstomach. Histologically the forestomach epithelium develops mainly during the first two weeks of life, with no further changes after weaning. Thus the anatomical and histological development of the forestomach of the hamster is quite different from that of the domestic ruminants.

収録刊行物

  • 日本畜産学会報

    日本畜産学会報 50 (10), 735-739, 1979

    公益社団法人 日本畜産学会

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