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Journal of Integrative Agriculture  2020, Vol. 19 Issue (7): 1850-1856    DOI: 10.1016/S2095-3119(19)62851-0
Special Issue: 动物营养合辑Animal Nutrition
Animal Science · Veterinary Medicine Advanced Online Publication | Current Issue | Archive | Adv Search |
Effect of dietary supplementation of pyrroloquinoline quinone disodium on growth performance, meat quality and antioxidative ability of broilers
LIU Guo-qing1*, SUN Guang-ming1, 2*, LIAO Xiu-dong1, HUANG Jian-zhong3, GUO Mei-jin3, ZHANG Li-yang1, GUO Yan-li2, LU Lin1, LUO Xu-gang1, 4 
1 Mineral Nutrition Research Division, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R.China
2 Department of Animal Science, Gansu Agricultural University, Lanzhou 730070, P.R.China
3 Fujian Ubaifu Biotechnology Co. Ltd., Fuzhou 350108, P.R.China
4 Poultry Mineral Nutrition Laboratory, College of Animal Science and Technology, Yangzhou University, Yangzhou 225000, P.R.China
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This study was conducted to investigate the effect of dietary supplementation with pyrroloquinoline quinone (PQQ) in the form of PQQ disodium (PQQ·Na2) on the growth performance, carcass traits, meat quality and antioxidative ability of broilers.  A total of 720 one-d-old Arbor Acres male broilers were randomly allocated to 1 of 6 treatments with 8 replicates of 15 birds per replicate in a completely randomized design.  Birds were fed a PQQ·Na2-unsupplemented corn-soybean meal basal diet (control) or the basal diet supplemented with 0.1, 0.2, 0.3, 0.4 or 0.5 mg PQQ·Na2 kg–1 for 42 d.  Compared with the control chicks, the chicks fed the diets supplemented with PQQ·Na2 had lower (P<0.05) feed:gain (F/G) during the grower phase and drip losses of breast muscles on day 42.  As supplemental PQQ·Na2 level increased, plasma total antioxidant capacity (T-AOC) on d 42, liver T-AOC on d 21 and heart T-AOC on d 21 and 42 increased linearly (P<0.05), but malondialdehyde concentrations in plasma, liver and heart on d 21 or 42 decreased linearly (P<0.001) or quadratically (P<0.005).  The results from the present study indicate that dietary supplemental PQQ·Na2 can improve antioxidant ability and meat quality  of broilers, and in general, it is implied that the optimal supplemental PQQ·Na2 level is 0.1 mg kg–1 of diet for broilers from 1 to 42 d of age.
Keywords:  antioxidation        broiler        growth performance        meat quality        pyrroloquinoline quinone disodium  
Received: 21 October 2019   Accepted: 24 May 2020
Fund: This study was supported by Fujian Ubaifu Biotechnology Co. Ltd., Fuzhou, China, the Special Funds of Chinese Academy of Agricultural Sciences for Distinguished Scientists, the earmarked fund for China Agriculture Research System (CARS-41), and the Agricultural Science and Technology Innovation Program (ASTIP-IAS08).
Corresponding Authors:  Correspondence LU Lin, E-mail:; LUO Xu-gang, E-mail:    
About author:  * These authors contributed equally to this study.

Cite this article: 

LIU Guo-qing, SUN Guang-ming, LIAO Xiu-dong, HUANG Jian-zhong, GUO Mei-jin, ZHANG Li-yang, GUO Yan-li, LU Lin, LUO Xu-gang. 2020. Effect of dietary supplementation of pyrroloquinoline quinone disodium on growth performance, meat quality and antioxidative ability of broilers. Journal of Integrative Agriculture, 19(7): 1850-1856.

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