Effects of Quercetin Supplemented in High-Concentrate Diet on Rumen Fermentation, Rumen Bacteria Counts and Serum Indices of Goats

GUO Changzheng; FENG Panfei; XUE Chunxu; YE Huimin; LIU Junhua; MAO Shengyong

doi:10.3969/j.issn.1006-267x.2016.09.023

2016 , Vol. 28 >Issue 9: 2839 - 2846

DOI: https://doi.org/10.3969/j.issn.1006-267x.2016.09.023

FEED SCIENCE AND TECHNOLOGY

Effects of Quercetin Supplemented in High-Concentrate Diet on Rumen Fermentation, Rumen Bacteria Counts and Serum Indices of Goats

GUO Changzheng ,
FENG Panfei ,
XUE Chunxu ,
YE Huimin ,
LIU Junhua ,
MAO Shengyong

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College of Animal Science, Nanjing Agricultural university, Nanjing 210095, China

Received date: 2016-03-23

Online published: 2016-09-08

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Abstract

The objective of this study was to investigate the effects of quercetin supplemented in high-concentrate diet on rumen fermentation, rumen bacteria counts and serum indices of goats. Twelve goats were randomly allocated to two groups with six goats per group and fed a high-concentrate diet supplemented without or with quercetin (100 mg/kg BW). The experiment lasted for 42 d. Rumen fluid sample was collected at 0 (08:00), 2, 4, 8 h after morning feeding at the 35th, 38th and 41st day. Vein blood sample was collected on the 36th, 39th and 42nd day at 0 and 6 h after morning feeding. The results showed as follows: compared with the control group, the supplementation of quercetin in high-concentrate diet significantly increased pH (P=0.047), and isobutyrate (P=0.001) and valerate concentrations (P=0.034) in rumen fluid; significantly increased serum total antioxidant capacity (P=0.031), glutathione content (P=0.002) and urea nitrogen concentration (P=0.006), while significantly decreased serum kalium ion concentration (P=0.042); bacterium counts of Firmicutes and Bacteroidetes in rumen fluid were not significantly influenced (P>0.10). Collectively, these results indicate that under the condition of high-concentrate diet, quercetin supplementation can improve rumen fluid pH, enhance antioxidant capacity, and may have a positive effect on health of the goats.

Key words： high-concentrate diet; subacute ruminal acidosis; quercetin; antioxidant; bacterial flora

Cite this article

GUO Changzheng , FENG Panfei , XUE Chunxu , YE Huimin , LIU Junhua , MAO Shengyong . Effects of Quercetin Supplemented in High-Concentrate Diet on Rumen Fermentation, Rumen Bacteria Counts and Serum Indices of Goats[J]. Chinese Journal of Animal Nutrition, 2016 , 28(9) : 2839 -2846 . DOI: 10.3969/j.issn.1006-267x.2016.09.023

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