Occurrence of Fat Necrosis and Treatment with Soysterol in Japanese Bulls

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  • 種雄牛の脂肪壊死症の発生状況と植物ステロール給与例の臨床観察
  • シュユウギュウ ノ シボウ エシショウ ノ ハッセイ ジョウキョウ ト ショク

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Nine Japanese Black bulls diagnosed as having fat necrosis were kept in the Shimane Prefectural Livestock Breeding Center and given daily 7.5-30 g of a soybean oil extraction by-product; Soysterol, which contains fatty acids and several kinds of plant sterol. Thy were then observed for 20 months.<BR>Rectal examination showed that the mass of fat necrosis around rectum and kidneys was softened after 1 to 2 months. It reduced in size after 4 to 6 months, and disappeared after 6 to 10 months. However, the mass of fat necrosis around the colon did not disappear even after 20 months, although softening and reduction were observed.<BR>Three cases showed serious clinical signs such as bloody diarrhea and anorexia. The treatment with Soysterol was not effective, and all of them were slaughtered.<BR>Hemobiochemical examination showed a decreasing of GOT, γ-GPT and inorganic phosphorus and an increasing of magnesium after 10 months treatment.

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