Effects of dietary graded levels of cinnamon essential oil and its combination with bamboo leaf flavonoid on immune function, antioxidative ability and intestinal microbiota of broilers

Cinnamon essential oil (CEO) and its combination with bamboo leaf flavonoid (BLF) have been shown to exhibit an additive antibacterial effect in vitro, but their functions in broilers were not clear. An experiment was conducted to investigate the effects of dietary graded levels of CEO and its combi...

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Main Authors: Yun-feng YANG, Lu-lu ZHAO, Yu-xin SHAO, Xiu-dong LIAO, Li-yang ZHANG, Lin LU, Xu-gang LUO
Format: Article
Language:English
Published: Elsevier 2019-09-01
Series:Journal of Integrative Agriculture
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2095311919625669
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author Yun-feng YANG
Lu-lu ZHAO
Yu-xin SHAO
Xiu-dong LIAO
Li-yang ZHANG
Lin LU
Xu-gang LUO
author_facet Yun-feng YANG
Lu-lu ZHAO
Yu-xin SHAO
Xiu-dong LIAO
Li-yang ZHANG
Lin LU
Xu-gang LUO
author_sort Yun-feng YANG
collection DOAJ
description Cinnamon essential oil (CEO) and its combination with bamboo leaf flavonoid (BLF) have been shown to exhibit an additive antibacterial effect in vitro, but their functions in broilers were not clear. An experiment was conducted to investigate the effects of dietary graded levels of CEO and its combination with BLF on the growth performance, immune responses, antioxidative ability, and intestinal morphology and microbiota of broilers fed a corn-soybean meal basal diet. A total of 576 1-d-old Arbor Acres commercial male broilers were randomly allotted to 9 treatments with 8 replicates of 8 birds each in a completely randomized design. Birds were fed on a basal corn-soybean meal diet (control, without plant extracts and antibiotics), or the basal diet supplemented with 50 mg of aureomycin kg−1, 50, 100, 200, 400, or 800 mg of CEO kg−1, a combination of 100 mg of CEO and 16.7 mg of BLF kg−1, or a combination of 200 mg of CEO kg−1 and 33.3 mg of BLF kg−1 for 42 d. Dietary treatment affected (P<0.05) the serum immune globulin M (IgM) contents on d 42, liver malondialdehyde (MDA) contents on d 21, duodenal crypt depth on d 42, relative abundance of Lactobacillus in the cecal contents on d 21, and relative abundances of Escherichia coli and Bifidobacterium in the cecal contents on d 42, but had no effect (P>0.16) on all other measured indices. The addition of 400 mg of CEO kg−1 or a combination of 200 mg CEO kg−1 and 33.3 mg BLF kg−1 increased (P<0.02) serum IgM contents on d 42. Dietary supplementation with 100 or 200 mg CEO kg−1, or 50 mg aureomycin kg−1 decreased (P<0.003) liver MDA contents on d 21. In addition, the supplement of 100 mg CEO kg−1 increased (P<0.002) the Lactobacillus relative abundance in caecum on d 21 and Bifidobacterium relative abundance in caecum on d 42, and decreased (P<0.0001) E. coli relative abundance in caecum on d 42. The results indicated that dietary supplementation with CEO, an alternative to aureomycin, improved the immune status, antioxidantative ability and cecal microbiota of broilers, and dietary supplementation with the combinations of CEO and BLF did not exhibit further effects. Dietary supplementation with 100 mg CEO kg−1 is beneficial for broilers fed a corn-soybean meal basal diet.
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spelling doaj.art-6ed64faadcd546d496a0687a0c4f98f62022-12-21T22:30:31ZengElsevierJournal of Integrative Agriculture2095-31192019-09-0118921232132Effects of dietary graded levels of cinnamon essential oil and its combination with bamboo leaf flavonoid on immune function, antioxidative ability and intestinal microbiota of broilersYun-feng YANG0Lu-lu ZHAO1Yu-xin SHAO2Xiu-dong LIAO3Li-yang ZHANG4Lin LU5Xu-gang LUO6Mineral Nutrition Research Division, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R. ChinaMineral Nutrition Research Division, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R. ChinaMineral Nutrition Research Division, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R. ChinaMineral Nutrition Research Division, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R. ChinaMineral Nutrition Research Division, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R. ChinaCorrespondence LU Lin; Mineral Nutrition Research Division, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R. ChinaCorrespondence LUO Xu-gang, Tel: +86-10-62816012; Mineral Nutrition Research Division, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R. ChinaCinnamon essential oil (CEO) and its combination with bamboo leaf flavonoid (BLF) have been shown to exhibit an additive antibacterial effect in vitro, but their functions in broilers were not clear. An experiment was conducted to investigate the effects of dietary graded levels of CEO and its combination with BLF on the growth performance, immune responses, antioxidative ability, and intestinal morphology and microbiota of broilers fed a corn-soybean meal basal diet. A total of 576 1-d-old Arbor Acres commercial male broilers were randomly allotted to 9 treatments with 8 replicates of 8 birds each in a completely randomized design. Birds were fed on a basal corn-soybean meal diet (control, without plant extracts and antibiotics), or the basal diet supplemented with 50 mg of aureomycin kg−1, 50, 100, 200, 400, or 800 mg of CEO kg−1, a combination of 100 mg of CEO and 16.7 mg of BLF kg−1, or a combination of 200 mg of CEO kg−1 and 33.3 mg of BLF kg−1 for 42 d. Dietary treatment affected (P<0.05) the serum immune globulin M (IgM) contents on d 42, liver malondialdehyde (MDA) contents on d 21, duodenal crypt depth on d 42, relative abundance of Lactobacillus in the cecal contents on d 21, and relative abundances of Escherichia coli and Bifidobacterium in the cecal contents on d 42, but had no effect (P>0.16) on all other measured indices. The addition of 400 mg of CEO kg−1 or a combination of 200 mg CEO kg−1 and 33.3 mg BLF kg−1 increased (P<0.02) serum IgM contents on d 42. Dietary supplementation with 100 or 200 mg CEO kg−1, or 50 mg aureomycin kg−1 decreased (P<0.003) liver MDA contents on d 21. In addition, the supplement of 100 mg CEO kg−1 increased (P<0.002) the Lactobacillus relative abundance in caecum on d 21 and Bifidobacterium relative abundance in caecum on d 42, and decreased (P<0.0001) E. coli relative abundance in caecum on d 42. The results indicated that dietary supplementation with CEO, an alternative to aureomycin, improved the immune status, antioxidantative ability and cecal microbiota of broilers, and dietary supplementation with the combinations of CEO and BLF did not exhibit further effects. Dietary supplementation with 100 mg CEO kg−1 is beneficial for broilers fed a corn-soybean meal basal diet.http://www.sciencedirect.com/science/article/pii/S2095311919625669plant extractsimmune responsesantioxidative abilityintestinal morphologycecal microbiotabroilers
spellingShingle Yun-feng YANG
Lu-lu ZHAO
Yu-xin SHAO
Xiu-dong LIAO
Li-yang ZHANG
Lin LU
Xu-gang LUO
Effects of dietary graded levels of cinnamon essential oil and its combination with bamboo leaf flavonoid on immune function, antioxidative ability and intestinal microbiota of broilers
Journal of Integrative Agriculture
plant extracts
immune responses
antioxidative ability
intestinal morphology
cecal microbiota
broilers
title Effects of dietary graded levels of cinnamon essential oil and its combination with bamboo leaf flavonoid on immune function, antioxidative ability and intestinal microbiota of broilers
title_full Effects of dietary graded levels of cinnamon essential oil and its combination with bamboo leaf flavonoid on immune function, antioxidative ability and intestinal microbiota of broilers
title_fullStr Effects of dietary graded levels of cinnamon essential oil and its combination with bamboo leaf flavonoid on immune function, antioxidative ability and intestinal microbiota of broilers
title_full_unstemmed Effects of dietary graded levels of cinnamon essential oil and its combination with bamboo leaf flavonoid on immune function, antioxidative ability and intestinal microbiota of broilers
title_short Effects of dietary graded levels of cinnamon essential oil and its combination with bamboo leaf flavonoid on immune function, antioxidative ability and intestinal microbiota of broilers
title_sort effects of dietary graded levels of cinnamon essential oil and its combination with bamboo leaf flavonoid on immune function antioxidative ability and intestinal microbiota of broilers
topic plant extracts
immune responses
antioxidative ability
intestinal morphology
cecal microbiota
broilers
url http://www.sciencedirect.com/science/article/pii/S2095311919625669
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