Effects of dietary pyrroloquinoline quinone disodium on growth, carcass characteristics, redox status, and mitochondria metabolism in broilers

文献类型： 外文期刊

第一作者： Wang, J.

作者： Wang, J.;Zhang, H. J.;Samuel, K. G.;Long, C.;Wu, S. G.;Yue, H. Y.;Qi, G. H.;Sun, L. L.

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关键词： pyrroloquinoline quinone disodium;growth;redox status;mitochondria;broiler chicks

期刊名称：POULTRY SCIENCE （ 影响因子：3.352； 五年影响因子：3.679 ）

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收录情况： SCI

摘要： The potential benefits of supplementing pyrroloquinoline quinone disodium (PQQ center dot Na-2) in the diet of broiler chicks were explored. We first examined the effect of different levels of dietary PQQ center dot Na-2 on growth performance, carcass characteristics, and plasma biochemical parameters (trial 1). A total of 490 1-day-old male Arbor Acres (AA) broiler chicks were randomly divided into 5 dietary groups supplemented with 0, 0.05, 0.1, 0.2, or 0.4 mg PQQ center dot Na-2/kg feed. As the 0.2 mg/kg PQQ center dot Na-2 supplement gave the best performance, we then investigated whether this level of PQQ center dot Na-2 influenced the redox status of plasma samples and mitochondrial-related metabolism (trial 2). A total of 120 1-day-old male AA chicks were randomly divided into 2 groups supplemented with 0 or 0.2 mg PQQ center dot Na-2/kg diet. In trial 1, birds fed a diet containing 0.2 mg PQQ center dot Na-2/kg showed lower feed conversion ratio compared with those fed the control diet in the overall study (d 1 to 42, P = 0.039). Breast muscle yield (d 42) increased quadratically in response to dietary PQQ center dot Na-2 supplementation (P = 0.021). Analysis of plasma biochemical parameters revealed that feeding broiler chicks with <= 0.4 mg/kg PQQ center dot Na-2 did not cause adverse health effects. In trial 2, birds fed 0.2 mg/kg PQQ center dot Na-2 again showed improved feed efficiency than the control birds in the grower and overall phases (P = 0.038 and 0.016, respectively). In addition, dietary PQQ center dot Na-2 supplementation resulted in a higher anti-oxidative capacity (P = 0.001), lower redox potential (P = 0.008), and higher hepatic citrate synthase activity (P = 0.002). In contrast, no difference in hepatic mitochondrial DNA copy number was observed between the 2 experimental groups (P > 0.1). These results indicate that PQQ center dot Na-2 is a potentially effective feed additive for improving feed efficiency, stimulating breast muscle development, and maintaining redox status in broiler chicks. Enhancement of mitochondria efficiency, rather than modulating mitochondria numbers, may underlie the growth-promoting effect of PQQ center dot Na-2.

分类号： S8

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