日粮亚麻油和低压缺氧对肉鸡右心室肥大和腹水的影响。

Effect of dietary flax oil and hypobaric hypoxia on right ventricular hypertrophy and ascites in broiler chickens.

Bond J M, Julian R J, Squires E J

Department of Animal and Poultry Science, University of Guelph, Ontario, Canada.

Br Poult Sci. 1996 Sep;37(4):731-41. doi: 10.1080/00071669608417903.

Abstract

The effect of dietary flax oil on growth rate, blood haemoglobin content, mortality and incidence of pulmonary hypertension and ascites in broilers at ambient pressure and at reduced atmospheric pressure was examined. 2. Birds were housed either in hypobaric chambers simulating 1000, 1500 or 2200 m altitude or in pens at ambient atmospheric pressure and fed on diets containing 100 g/kg added fat as either an animal/vegetable (A/V) blend or flax oil. 3. Birds raised under hypobaric conditions had a decreased growth rate and increased mortality, blood haemoglobin content, and incidence of pulmonary hypertension and ascites compared to the groups at normal atmospheric pressure. 4. Broilers fed on the diet containing flax oil showed no difference in growth rate or blood haemoglobin content compared to birds fed on the A/V fat diet raised at the same altitude. 5. Inclusion of flax oil in the diet decreased mortality and the incidence of ascites at 2200 m and pulmonary hypertension at 1500 m. 6. Flax oil may be an effective method of reducing ascites and pulmonary hypertension in broilers without affecting performance.

摘要

研究了日粮中添加亚麻油对肉鸡在常压和减压环境下生长速度、血液血红蛋白含量、死亡率以及肺动脉高压和腹水发病率的影响。2. 将肉鸡饲养在模拟海拔1000米、1500米或2200米的低压舱中，或饲养在常压鸡舍中，饲喂添加了100克/千克脂肪的日粮，脂肪来源为动物/植物（A/V）混合油或亚麻油。3. 与常压组相比，低压环境下饲养的肉鸡生长速度下降，死亡率、血液血红蛋白含量以及肺动脉高压和腹水发病率升高。4. 在相同海拔饲养的情况下，饲喂含亚麻油日粮的肉鸡与饲喂A/V脂肪日粮的肉鸡相比，生长速度和血液血红蛋白含量无差异。5. 在日粮中添加亚麻油可降低2200米海拔处的死亡率和腹水发病率以及1500米海拔处的肺动脉高压发病率。6. 亚麻油可能是一种在不影响肉鸡生产性能的情况下降低腹水和肺动脉高压的有效方法。