子豚の群編成後短時間における末梢血コルチゾール•グルコースおよび遊離脂肪酸濃度と白血球数および好中球貪食能の変化

DOI Web Site 被引用文献3件 参考文献46件

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  • Changes of Plasma Cortisol, Glucose and Nonesterified Fatty Acid Concentrations, Total and Differential Leukocyte Counts and Phagocytic Function of Neutrophils in Peripheral Blood during Short Period after Grouping Unfamiliar Piglets
  • コブタ ノ グン ヘンセイゴ タンジカン ニ オケル マッショウケツ コルチゾ

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This study was undertaken to examine the activities of neuroendocrine system and the changes of number and function of leukocytes in peripheral blood in a short period after grouping unfamiliar piglets. At 34d old, 12 piglets (4 littermates×3 litter) were moved and placed to a new pen, and they were reared together for 3d (grouped-piglets). The other 6 piglets of 1 litter were not moved and used as control piglets. Aggressive encounters among grouped-piglets were observed for 8h after grouping. Plasma cortisol, glucose and nonesterified fatty acid (NEFA) concentrations and total and differential leukocyte counts at 15min before grouping (before) and at 45 and 180min after grouping, and phagocytic function of neutrophils before and at 180min after grouping were determined. In grouped-piglets, the concentrations of plasma cortisol, glucose and NEFA at 45 and 180min after grouping were significantly higher than those before grouping and compared to those at the same times in control piglets, indicating that both hypothalamic-pituitary-adrenal cortex and sympathetic-adrenal medulla axes are activated in response to aggressive encounters after grouping unfamiliar piglets. In grouped-piglets, leukocytosis, neutrophilia, lymphocytopenia and monocytepenia at 45 and 180min after grouping, and decreases of phagocytic function of neutrophils were also seen after grouping.

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  • 日本畜産学会報

    日本畜産学会報 69 (2), 140-145, 1998

    公益社団法人 日本畜産学会

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