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首页> 外文期刊>International Journal of Poultry Sciences >Effect of Dietary Supplementation of an Antioxidant Blend on Performance, Egg Quality and Behavior in Bovans Brown Hen
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Effect of Dietary Supplementation of an Antioxidant Blend on Performance, Egg Quality and Behavior in Bovans Brown Hen

机译：日粮添加抗氧化剂混合物对Bovans Brown母鸡生产性能，蛋品质和行为的影响

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In egg industry, transportations and mixing are common stressors for hens. The objective of this study was to determine if the dietary antioxidant supplement improves hen performance, egg quality and behavior following transportation and housing environment changes. At 28 week of age, floor pen housed Bovans Brown hens (n = 48) were transferred to 2-hen wire cages and randomly assigned to one of the four dietary treatments: standard layer ration (control) and antioxidant supplemented diets at 200, 400 and 600 ppm of Agrado for 2 weeks. Egg production was recorded daily. Egg quality and feed consumption were measured weekly on two consecutive days. Individual body weight and weight of internal organs were measured at the end of the study. Behaviors were recorded twice per week using scan sampling. All three treated groups had higher egg production and fewer broken eggs compared to the control group. Body weight loss was observed in all hens regardless of treatments. However, hens fed 400 ppm antioxidant tended to lose the least body weight. In addition, hens fed 400 ppm antioxidant displayed the lowest incidence of stereotypic pecking behaviors. There were no treatment effects on feed intake, liver and spleen weight, Haugh units and yolk color, heterophil to lymphocyte ratio and corticosterone concentrations. Adrenal weight tended to be lower in all treated hens compared to the controls but without dose effects. In conclusion, dietary supplementation of the antioxidant could be used as a practice strategy to improve hen productivity performance under management stress.
机译：在鸡蛋工业中，运输和混合是母鸡的常见压力源。这项研究的目的是确定在运输和居住环境变化后，膳食抗氧化剂补充剂是否能改善母鸡的生产性能，鸡蛋质量和行为。在28周龄时，将圈养家禽的Bovans Brown母鸡（n = 48）转移到2只鸡笼子里，并随机分配到四种日粮处理之一：标准分层日粮（对照）和补充抗氧化剂的日粮200、400和600 ppm的Agrado，持续2周。每天记录产蛋量。连续两天每周测量一次鸡蛋质量和饲料消耗。在研究结束时测量个体体重和内部器官重量。使用扫描采样每周记录两次行为。与对照组相比，所有三个治疗组的产蛋量更高，破鸡蛋更少。无论采取何种治疗措施，所有母鸡均出现体重减轻。但是，饲喂抗氧化剂400 ppm的母鸡往往体重减轻最少。此外，饲喂400 ppm抗氧化剂的母鸡表现出的定型啄食行为发生率最低。对采食量，肝脏和脾脏重量，Haugh单位和蛋黄颜色，嗜异性淋巴细胞比和皮质酮浓度没有治疗作用。与对照组相比，所有处理过的母鸡的肾上腺重量趋于降低，但没有剂量效应。总之，饮食中抗氧化剂的添加可以用作在管理压力下提高母鸡生产率的实践策略。

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