鶏の盲腸に分布する血管と神経の切断あるいは盲腸切除による水分摂取量の経時的変化

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Using 45-day-old single comb White Leghorn cockerels whose main vessels and /or nerves distributed along the cecum had been severed, or whose cecum had been ligated or cut off, the changes in water intake, water excretion and water balance were investigated during the lapse of day after operation. Furthermore, they were attached the artificial anus at 150-day-old, and water contents of feces and urine were measured separately. There were no differences in water intake, water excretion and water balance among the cecal treatments of chickens. In 56-day-old (11 days after operated) chickens, water intake and water excretion were significantly more in the operated group than in control group. On the average, water intake and water excretion were 1.7 and 1.8 times more in the operated group than those in control group, respectively. In 75-day-old (30 days after operated) chickens, water intake and water excretion were significantly more in the operated group than in control group, although the rate of increase was smaller than that in 55-day-old chickens. In 105- and 145-day-old (60 and 100 days after operated) chickens, water excretion was increased by the cecal ligation and cecectomy, although the other cecal treatments did not effect on water excretion. In 175-day-old (130 days after operated) chickens attached artificial anus at 150-day-old, there were no differences in water intake, water excretion and water balance between the cecal operated group and control group.45日齢の単冠白色レグホーン種の盲腸に分布する血管と神経, 神経のみの切断あるいは盲腸結紮, 盲腸切除手術を行い, 水分摂取量と水分排泄量および水分出納を経時的に調査したのち, さらに人工肛門を設着して糞尿別水分排泄量を調査した. 1)盲腸手術前にはいずれの区も差がみられなかったが, 盲腸手術後11日の56日齢ではいずれの区も水分摂取量および水分排泄量が対照区に対して1%水準で有意に増加し, 盲腸手術区の全平均で対照区の水分摂取量で1.7倍, 水分排泄量で1.8倍にも達した. しかし, 水分出納には差がみられなかった. 2)75日齢(盲腸手術後30日)においても盲腸手術区は水分摂取量および水分排泄量は対照区に対して1%水準で有意に多かったが, その程度は56日齢よりも少なかった. 3)105日齢(盲腸手術後60日)および145日齢(盲腸手術後100日)では盲腸結紮区と盲腸切除区の水分排泄量で高い値を示した他は盲腸手術による差はみられなかった. 4)150日齢(盲腸手術後105日)で人工肛門を設着し, 175日齢(盲腸手術後130日)での調査では, いずれの盲腸手術区も対照区に対して水分摂取量, 水分排泄量および水分出納はともに差がみられなかった.
香川大学の論文
1981-03-20

鶏の盲腸に分布する血管と神経の切断あるいは盲腸切除による水分摂取量の経時的変化

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