Feeding dry stevia leaf (Stevia rebaudiana) or xylanase improves the hepatic antioxidative status of broiler chickens
Feeding dry stevia leaf (Stevia rebaudiana) or xylanase improves the hepatic antioxidative status of broiler chickens
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DOI：
10.1016/j.rvsc.2021.03.001
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发表时间：
2021-03-06
影响因子：
2.4
通讯作者：
Stringhini, Jose Henrique
中科院分区：
文献类型：
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作者：
Pirgozliev, Vasil;Kljak, Kristina;Stringhini, Jose Henrique
按照2 × 2析因设计，制备了含有和不含有甜叶菊以及含有和不含有外源性木聚糖酶的四种饮食。在随机区组设计中，在8个围栏（每个围栏3只鸡）中随意饲喂每种饲料。结果发现，喂食木聚糖酶的鸟类生长更快，利用饲料的效率更高，肝脏α-生育酚浓度和维生素E浓度也增加（P 0.05）。饲喂甜菊糖浓度不影响生长性能（P 0.001）。对于任何研究的变量，没有膳食甜叶菊与木聚糖酶的相互作用（P 0.05）。结果表明，单用甜菊糖和木聚糖酶可通过提高抗氧化剂的利用率来改善禽类的抗氧化状态。
Four diets, formulated with and without stevia and with and without exogenous xylanase, following a 2 x 2 factorial design, were prepared. Each diet was fed ad libitum to birds in eight pens (three birds in each pen) in a randomised block design. It was found that birds fed xylanase grew faster, used the feed more efficiently and had an increased concentration of hepatic alpha-tocopherol and vitamin E concentrations (P 0.05). Feeding stevia did not affect growth performance (P 0.001) concentrations. There were no dietary stevia by xylanase interactions (P 0.05) for any of the studied variables. The results showed that alone, dietary stevia and dietary xylanase can improve the antioxidative status of birds through enhancing dietary antioxidant availability.