ヤギにおける胸管リンパ系への不飽和脂肪酸の吸収

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タイトル別名
  • The Transport of Unsaturated Fatty Acids into the Thoracic Duct Lymph of Goats
  • ヤギ ニ オケル キョウカン リンパケイ エ ノ フホウワ シボウサン ノ キュウシュウ

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抄録

The thoracic ducts of five goats, including two goats fitted with abomasal fistula, were cannulated, enabling lymph to be collected. Effect of safflower oil feeding on the transport of lipids from the small intestine to the thoracic duct were studied by determining the changes in the output of lipids in the thoracic duct lymph. The lymph flow and the output of total lipids transported via the thoracic duct over 24 hours were 2.0l and 6.7g in the alfalfa hay cube feeding, 3.1l and 20.0g in the oral feeding of safflower oil and 2.1l and 11.7g in the infusion of safflower oil into the abomasum. The output of triglycerides transported via the thoracic duct increased by the feeding or the infusion into the abomasum of safflower oil. The increase in the output of triglycerides was accompanied by the increase in the output of phospholipids and a significant positive correlation was observed between the outputs of triglycerides and phospholipids. The concentrations of triglycerides and phospholipids in chylomicrons and chylomicron-free lymph began to increase by the feeding or the infusion into the abomasum of safflower oil and reached a maximum value at 19-21 hours or 10-12 hours, respectively. A significant positive correlations were observed between the concentrations of triglycerides and phospholipids in chylomicrons and chylomicron-free lymph. The proportion of C18:0 in triglycerides in chylomicrons and chylomicron-free lymph decreased until 4 hours after the oral feeding of safflower oil, but thereafter it continued to increase with time. The proportion of C18:2 in triglycerides in chylomicrons and chylomicron-free lymph reached the maximum value at 4 hours after the feeding of safflower oil. With the infusion of safflower oil into the abomasum, the proportion of C18:2 in triglycerides in chylomicrons and chylomicron-free lymph markedly increased, whereas the proportion of C18:0 and C18:1 decreased.

収録刊行物

  • 日本畜産学会報

    日本畜産学会報 45 (4), 206-213, 1974

    公益社団法人 日本畜産学会

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