Effects of Pyrroloquinoline Quinone Disodium Salt on Performance and Egg Cholesterol Content of Laying Hens

SUN Limin, ZHANG Haijun, WU Shugeng, YUE Hongyuan, WANG Jing, QI Guanghai

doi:10.3969/j.issn.1006-267x.2014.09.016

Chinese Journal of Animal Nutrition >

2014 , Vol. 26 >Issue 9: 2565 - 2573

DOI: https://doi.org/10.3969/j.issn.1006-267x.2014.09.016

Poultry Nutrition

Effects of Pyrroloquinoline Quinone Disodium Salt on Performance and Egg Cholesterol Content of Laying Hens

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Key Laboratory of Feed Biotechnology of Ministry of Agricultural, Feed Research Institute, Chinese Academy of Agricultural Science, Beijing 100081, China

Received date: 2014-04-18

Online published: 2014-09-10

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Abstract

This experiment was conducted to evaluate the effects of dietary pyrroloquinoline quinone disodium salt (PQQ·Na₂) on performance, egg cholesterol content and antioxidant capacity of laying hens. Three hundred and sixty Jinghong hens aged 23 weeks were randomly divided into 5 groups: basal diets with 0 (control group), 0.08, 0.80, 1.60 mg/kg PQQ·Na₂ and 100 mg/kg vitamin E, respectivly. Each group contained 6 replicates with 12 hens per replicate. The experiment lasted for 8 weeks. The results showed as follows: 1) compared with control group, PQQ·Na₂ significantly increased laying rate (1.11%) (P<0.05), had no significant effects on egg to feed ratio and egg relative weight (P>0.05), but significantly increased albumen height(P<0.05). 2) Compared with control group, 0.80 mg/kg PQQ·Na₂ significantly increased liver cholesterol content (P<0.05), and significantly decreased cholesterol content in plasma and egg (11.27%) (P<0.05). PQQ·Na₂ significantly increased plasma high density lipoprotein cholesterol content (P<0.05), but had no significant effect on plasma low density lipoprotein cholesterol content (P>0.05). 3) Compared with control group, 0.80 mg/kg PQQ·Na₂ decreased plasma methane dicarboxylic aldehyde (MDA) content (P<0.05) and 0.08 mg/kg PQQ·Na₂ significantly increased liver total superoxide dismutase (T-SOD) activity and total antioxidant capacity(P<0.05), but had no significant effect on plasma T-SOD activity (P>0.05). Compared with the other groups, 1.60 mg/kg PQQ·Na₂ significantly increased MDA content in liver (P<0.05). In conclusion, this study indicates that the appropriate level of dietary PQQ·Na₂ (0.80 mg/kg) increases laying rate, enhances antioxidant capacity of laying hens and decreases egg cholesterol content.

Key words： PQQ·; Na₂; laying hens; egg cholesterol; antioxidant

Cite this article

SUN Limin, ZHANG Haijun, WU Shugeng, YUE Hongyuan, WANG Jing, QI Guanghai . Effects of Pyrroloquinoline Quinone Disodium Salt on Performance and Egg Cholesterol Content of Laying Hens[J]. Chinese Journal of Animal Nutrition, 2014 , 26(9) : 2565 -2573 . DOI: 10.3969/j.issn.1006-267x.2014.09.016

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