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首页> 外文期刊>Tropical Animal Health and Production >Effect of dietary supplemental ascorbic acid and folic acid on the growth performance, redox status, and immune status of broiler chickens under heat stress
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Effect of dietary supplemental ascorbic acid and folic acid on the growth performance, redox status, and immune status of broiler chickens under heat stress

机译：膳食补充抗坏血酸和叶酸对热胁迫下肉鸡鸡生长性能，氧化还原状态和免疫状态的影响

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摘要

This experiment was conducted to investigate the effects of dietary supplemental L-ascorbic acid (AA) and folic acid (FA) on broiler chickens under heat stress (HS) conditions when supplemented either alone or in combination. For this aim, the effect of these supplements on the broilers' growth performance, some blood parameters, antioxidant, and immune status were evaluated. Hatchling Cobb-500 broilers (total = 240) were fed either corn and soybean meal-based diet (control group) or basal diet supplemented with 200 mg AA/kg diet, 1.5 mg FA/kg diet, or 200 mg AA plus 1.5 mg FA/kg diet, for 35 days during the summer months (n = 6 replicates/group, 10 birds/replicate). The minimum and maximum average temperatures ranged from 84.5 to 96.2 degrees F, and the relative humidity ranged from 68.5 to 76.5%. Supplemented vitamins either alone and (or) in combination increased (P < 0.01) broilers' growth performance, thyroid hormones levels, insulin growth factor1, blood hemoglobin, total protein, albumin, globulin, heat shock protein70, total antioxidant capacity, catalase enzyme activity, superoxide dismutase enzyme activity, antibody titer against Newcastle disease virus, and decreased (P < 0.01) heterophil/lymphocytes. The effects (P < 0.01) of the supplemented vitamins on the analyzed parameters were better when they were added in combination. In conclusion, the combination of AA and FA at 200 and 1.5 mg/kg, respectively, increased the broilers' antioxidant status with coordinated improvement in the growth performance and health status under HS.
机译：进行该实验，以研究膳食补充L-抗坏血酸（AA）和叶酸（FA）在热应激（HS）条件下肉鸡（HS）条件下的叶子酸（FA）的影响。为此目的，评估这些补充剂对肉鸡的生长性能，一些血液参数，抗氧化和免疫状态的影响。孵化Cobb-500肉鸡（总= 240）喂食玉米和大豆膳食的饮食（对照组）或补充有200mg Aa / kg饮食的基础饮食，1.5mg Fa / kg饮食，或200mg Aa加1.5毫克FA / kg饮食，夏季期间35天（n = 6重复/组，10只鸟/复制）。最小和最大平均温度范围为84.5至96.2摄氏度，相对湿度范围为68.5至76.5％。单独补充维生素（或）组合增加（P <0.01）肉鸡的生长性能，甲状腺激素水平，胰岛素生长因子1，血液血红蛋白，总蛋白，白蛋白，球蛋白，热休克蛋白质70，总抗氧化能力，过氧化酶酶活性，超氧化物歧化酶酶活性，抗体滴度抗新城疫病毒，并降低（P <0.01）hellophil /淋巴细胞。当组合加入它们时，补充的维生素的效果（P <0.01）补充的维生素。总之，AA和FA的组合分别在200和1.5mg / kg中增加了肉鸡的抗氧化状态，并在HS下的增长性能和健康状况方面的协调改善。

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