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首页> 外文期刊>Advances in Research >Effect of Methionine and Organic Acid on Apparent Nutrient Utilization and Gut Morphology of Broiler Chicken
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Effect of Methionine and Organic Acid on Apparent Nutrient Utilization and Gut Morphology of Broiler Chicken

机译：蛋氨酸和有机酸对肉鸡表观营养利用和肠道形态的影响

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Aim: Nutrient metabolisability and gut morphological response of broiler birds fed diets supplemented with methionine and methionine hydoxy analogue with or without formic acid were investigated in a 56-day feeding trial. Methodology: One hundred and ninety-two one-day old unsexed Arbor Acre broilers were used. The birds were brooded for 7 days after which they were randomly allotted to 4 dietary treatments with 4 replicates of 12 birds each. The experimental treatments were: diet 1: basal diet + DL-methionine without formic acid, diet 2: basal diet + DL-methionine (0.12%) with 0.8% formic acid, diet 3: basal diet + methionine hydroxyl analogue without formic acid, diet 4: basal diet + methionine hydroxyl analogue with formic acid. Experimental Design: The design of the experiment was a completely randomised design in a 2X2 factorial arrangement. Results: Formic acid supplementation had a significant (P<0.05) influence on apparent nutrient metabolisability of all the nutrients assessed. Apparent nutrient metabolisability was significantly (p<0.05) improved in birds fed with diet 2 relative to birds fed other diets. There were significant (P<0.05) differences observed in the wall thickness, villus height, villus width and crypt depth of the birds. Formic acid supplementation significantly (P<0.05) reduced gut wall thickness and increased villus height, villus width and crypt depth in birds fed with diet 4. The interaction between formic acid and thetype of sulphur amino acid sources was significant for wall thickness, crypt depth, villus height and villus width (P<0.0069 to 0.0488) of the jejunum. Conclusion: The gut parameters were better for birds fed with diet 2. Likewise birds fed with diet 4 showed better gut morphology. Formic acid supplementation improved apparent nutrient digestibility and gut morphology of broiler chickens used in the study.
机译：目的：在56天的饲养试验中，研究了饲喂添加或不添加甲酸的蛋氨酸和蛋氨酸羟基类似物的日粮对肉鸡的营养代谢和肠道形态反应。方法：使用了一百九十二只一天不老的Arbor Acre肉鸡。将家禽育成7天，然后将它们随机分配给4种饮食处理，每组12只鸡4次重复。实验处理方法为：饮食1：基础饮食+不含甲酸的DL-蛋氨酸，饮食2：基础饮食+含0.8％甲酸的DL-蛋氨酸（0.12％），饮食3：基础饮食+不含甲酸的蛋氨酸羟基类似物，饮食4：基础饮食+蛋氨酸羟基类似物与甲酸。实验设计：实验设计是2X2析因排列的完全随机设计。结果：补充甲酸对所有评估营养物质的表观营养物质代谢具有显着影响（P <0.05）。与饲喂其他饮食的鸟类相比，饲喂饮食2的鸟类的表观营养物质代谢率显着提高（p <0.05）。鸡的壁厚，绒毛高度，绒毛宽度和隐窝深度存在显着差异（P <0.05）。饲喂日粮4的家禽中，甲酸的添加显着（P <0.05）降低了肠壁厚度，增加了绒毛高度，绒毛宽度和隐窝深度。空肠的绒毛高度和绒毛宽度（P <0.0069至0.0488）。结论：饲喂2号饲喂的家禽的肠道参数更好。同样，饲喂4号饲喂的家禽的肠道形态也更好。补充甲酸改善了研究中所用肉鸡的表观营养物质消化率和肠道形态。

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