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El-Houseiny W, Abdelaziz R, Mansour AT, Alqhtani HA, Bin-Jumah MN, Bayoumi Y, Arisha AH, Al-Sagheer AA, El-Murr AE. Effects of α-sitosterol on growth, hematobiochemical profiles, immune-antioxidant resilience, histopathological features and expression of immune apoptotic genes of Nile tilapia, Oreochromis niloticus, challenged with Candida albicans. Comp Biochem Physiol B Biochem Mol Biol 2024; 275:111035. [PMID: 39313020 DOI: 10.1016/j.cbpb.2024.111035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2024] [Revised: 09/16/2024] [Accepted: 09/17/2024] [Indexed: 09/25/2024]
Abstract
In this study, the effect of the Streptomyces misakiensis metabolite (α- sitosterol, 0, 20, 40, 60, and 80 mg/kg) dietary supplementation on growth performance, antioxidant-immune stability and Candida albicans resistance of Nile tilapia was evaluated. The results revealed that the incorporation of α-sitosterol at doses of 60 and 80 mg/kg into the diet significantly improved the growth rate of Nile tilapia. The fish receiving 80 mg/kg showed an increased level of high-density lipoprotein, total protein, globulin, and albumin, and significantly reduced levels of indicators of hepato-renal damage, glucose, triglycerides, low-density lipoprotein, and total cholesterol. Dietary α-sitosterol induced a considerable increase in hepatopancreas glutathione peroxidase, superoxide dismutase and catalase activities and a significant drop in malondialdehyde levels. Supplementing the diet with 80 mg/kg of α-sitosterol increased nitric oxide, complement-3, nitro blue tetrazolium levels, lysozyme, and phagocytic activities. In particular, supplementing with α-sitosterol at 60-80 mg/kg of diet significantly enhanced the expression of pro/anti-inflammatory markers (il1b, il10, tgfb, ifng, tnfa and il8) after the C. albicans challenge. Also, there was a decrease in cumulative mortality percent, pro-apoptotic markers (casp3, bax and hsp70) and an increase in anti-apoptotic indicators (bcl2). Interestingly, following the C. albicans challenge, fish that received 0 and 20 mg α-sitosterol/kg exhibited significant inflammation in the hepatopancreas, spleen, and intestine. On the other hand, inflammation could be alleviated by feeding 60-80 mg α-sitosterol/kg. Due to these findings, α-sitosterol could be an innovative option to enhance growth, general physiological status, immune service, and antifungal resistance of Nile tilapia against C. albicans.
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Affiliation(s)
- Walaa El-Houseiny
- Department of Aquatic Animal Medicine, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt.
| | - Rewan Abdelaziz
- Department of Microbiology, Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Abdallah Tageldein Mansour
- Animal and Fish Production Department, College of Agricultural and FoodSciences, King Faisal University, Al-Ahsa, Saudi Arabia; Fish and Animal Production Department, Faculty of Agriculture (Saba Basha, Alexandria University, Alexandria, Egypt.
| | - Haifa A Alqhtani
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia.
| | - May Nasser Bin-Jumah
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia; Environment and Biomaterial Unit, Health Sciences Research Center, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia.
| | - Yasmin Bayoumi
- Department of Animal Medicine, Faculty of Veterinary Medicine, Zagazig University Zagazig, Egypt
| | - Ahmed H Arisha
- Department of Animal Physiology and Biochemistry, Faculty of Veterinary Medicine, Badr University in Cairo (BUC), Badr City, Cairo, Egypt; Department of Physiology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt
| | - Adham A Al-Sagheer
- Department of Animal Production, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt.
| | - Abd Elhakeem El-Murr
- Department of Aquatic Animal Medicine, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
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Sun M, Cao Y, Cheng J, Xu D, Li F, Wang J, Ge Y, Liu Y, Long X, Guo W, Liu J, Fu S. Stigmasterol Activates the mTOR Signaling Pathway by Inhibiting ORP5 Ubiquitination to Promote Milk Synthesis in Bovine Mammary Epithelial Cells. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:14769-14785. [PMID: 38912664 DOI: 10.1021/acs.jafc.4c03243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/25/2024]
Abstract
Stigmasterol (ST), a phytosterol found in food, has various biological activities. However, the effect of ST on milk synthesis in dairy cows remains unclear. Therefore, bovine primary mammary epithelial cells (BMECs) were isolated, cultured, and treated with ST to determine the effect of ST on milk synthesis. The study revealed that 10 μM ST significantly increased milk synthesis in BMECs by activating the mammalian target of rapamycin (mTOR) signaling pathway. Further investigation revealed that this activation depends on the regulatory role of oxysterol binding protein 5 (ORP5). ST induces the translocation of ORP5 from the cytoplasm to the lysosome, interacts with the mTOR, recruits mTOR to target the lysosomal surface, and promotes the activation of the mTOR signaling pathway. Moreover, ST was found to increase ORP5 protein levels by inhibiting its degradation via the ubiquitin-proteasome pathway. Specifically, the E3 ubiquitin ligase membrane-associated cycle-CH-type finger 4 (MARCH4) promotes the ubiquitination and subsequent degradation of ORP5. ST mitigates the interaction between MARCH4 and ORP5, thereby enhancing the structural stability of ORP5 and reducing its ubiquitination. In summary, ST stabilizes ORP5 by inhibiting the interaction between MARCH4 and ORP5, thereby activating mTOR signaling pathway and enhancing milk synthesis.
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Affiliation(s)
- Mingyang Sun
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Yu Cao
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Ji Cheng
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Dianwen Xu
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Feng Li
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Jiaxin Wang
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Yusong Ge
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Yuhao Liu
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Xiaoyu Long
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Wenjin Guo
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Juxiong Liu
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Shoupeng Fu
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
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Ye W, Wu W, Jiang L, Yuan C, Huang Y, Chen Z, Huang Q, Qian L. Effects of dietary phytosterols or phytosterol esters supplementation on growth performance, biochemical blood indices and intestinal flora of C57BL/6 mice. PLoS One 2024; 19:e0297788. [PMID: 38743661 PMCID: PMC11093361 DOI: 10.1371/journal.pone.0297788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 01/13/2024] [Indexed: 05/16/2024] Open
Abstract
This study was conducted to evaluate the effects of phytosterols (PS) and phytosterol esters (PSE) on C57BL/6 mice. Three groups of 34 six-week-old C57BL/6 mice of specific pathogen free (SPF) grade, with an average initial body weight (IBW) of 17.7g, were fed for 24 days either natural-ingredient diets without supplements or diets supplemented with 89 mg/kg PS or diets supplemented with 400 mg/kg PSE. Growth performance, blood biochemistry, liver and colon morphology as well as intestinal flora status were evaluated. Both PS and PSE exhibited growth promotion and feed digestibility in mice. In blood biochemistry, the addition of both PS and PSE to the diet resulted in a significant decrease in Total Cholesterol (TC) and Triglyceride (TG) levels and an increase in Superoxide Dismutase (SOD) activity. No significant changes in liver and intestinal morphology were observed. Both increased the level of Akkermansia in the intestinal tract of mice. There was no significant difference between the effects of PS and PSE. It was concluded that dietary PS and PSE supplementation could improve growth performance, immune performance and gut microbiome structure in mice, providing insights into its application as a potential feed additive in animals production.
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Affiliation(s)
- Wenxin Ye
- Hainan Institute of Zhejiang University, Sanya, China
| | - Wenzi Wu
- Hainan Institute of Zhejiang University, Sanya, China
| | - Lai Jiang
- Hainan Institute of Zhejiang University, Sanya, China
| | - Chunchun Yuan
- Key Laboratory of Animal Nutrition and Feed Science in East China, Ministry of Agriculture, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Yubo Huang
- Key Laboratory of Animal Nutrition and Feed Science in East China, Ministry of Agriculture, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Zhuo Chen
- Hainan Institute of Zhejiang University, Sanya, China
| | - Qixin Huang
- Key Laboratory of Animal Nutrition and Feed Science in East China, Ministry of Agriculture, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Lichun Qian
- Hainan Institute of Zhejiang University, Sanya, China
- Key Laboratory of Animal Nutrition and Feed Science in East China, Ministry of Agriculture, College of Animal Sciences, Zhejiang University, Hangzhou, China
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Munawar M, Khan MS, Saeed M, Younas U, Farag MR, Di Cerbo A, El-Shall N, Loschi AR, Dhama K, Alagawany M. Phytosterol: nutritional significance, health benefits, and its uses in poultry and livestock nutrition. Anim Biotechnol 2023; 34:3206-3215. [PMID: 35839248 DOI: 10.1080/10495398.2022.2099882] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
Medicinal plants with active ingredients have shown great potential as natural and sustainable additives in livestock and poultry diets as growth promoters, performance, feed conversion ratio, digestibility of nutrient enhancers, and antioxidants and immune system modulators. Among active ingredients, phytosterols, which are plant-based bio-factors that may be found in seeds, fruits, grains, vegetables and legumes, are thought to be involved in the aforementioned activities but are also widely known in human medicine due to their efficacy in treating diabetes, coronary heart disease, and tumors. Nevertheless, phytosterols can also promote carcinogens production, angiogenesis inhibition, metastasis, infiltration, and cancer cells proliferation. This review focuses on the deepening of the biological role and health benefits of phytosterols and their new potential application in poultry and livestock nutrition.
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Affiliation(s)
- Mahzaib Munawar
- Cholistan University of Veterinary and Animal Sciences, Bahawalpur, Pakistan
| | | | - Muhammad Saeed
- Cholistan University of Veterinary and Animal Sciences, Bahawalpur, Pakistan
| | - Umair Younas
- Cholistan University of Veterinary and Animal Sciences, Bahawalpur, Pakistan
| | - Mayada R Farag
- Forensic Medicine and Toxicology Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Alessandro Di Cerbo
- School of Biosciences and Veterinary Medicine, University of Camerino, Matelica, Italy
| | - Nahed El-Shall
- Poultry and Fish Diseases Department, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt
| | - Anna Rita Loschi
- School of Biosciences and Veterinary Medicine, University of Camerino, Matelica, Italy
| | - Kuldeep Dhama
- Division of Pathology, ICAR-Indian Veterinary Research Institute, Bareilly, India
| | - Mahmoud Alagawany
- Poultry Department, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
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Song D, Li A, Chen B, Feng J, Duan T, Cheng J, Chen L, Wang W, Min Y. Multi-omics analysis reveals the molecular regulatory network underlying the prevention of Lactiplantibacillus plantarum against LPS-induced salpingitis in laying hens. J Anim Sci Biotechnol 2023; 14:147. [PMID: 37978561 PMCID: PMC10655300 DOI: 10.1186/s40104-023-00937-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 09/04/2023] [Indexed: 11/19/2023] Open
Abstract
BACKGROUND Salpingitis is one of the common diseases in laying hen production, which greatly decreases the economic outcome of laying hen farming. Lactiplantibacillus plantarum was effective in preventing local or systemic inflammation, however rare studies were reported on its prevention against salpingitis. This study aimed to investigate the preventive molecular regulatory network of microencapsulated Lactiplantibacillus plantarum (MLP) against salpingitis through multi-omics analysis, including microbiome, transcriptome and metabolome analyses. RESULTS The results revealed that supplementation of MLP in diet significantly alleviated the inflammation and atrophy of uterus caused by lipopolysaccharide (LPS) in hens (P < 0.05). The concentrations of plasma IL-2 and IL-10 in hens of MLP-LPS group were higher than those in hens of LPS-stimulation group (CN-LPS group) (P < 0.05). The expression levels of TLR2, MYD88, NF-κB, COX2, and TNF-α were significantly decreased in the hens fed diet supplemented with MLP and suffered with LPS stimulation (MLP-LPS group) compared with those in the hens of CN-LPS group (P < 0.05). Differentially expressed genes (DEGs) induced by MLP were involved in inflammation, reproduction, and calcium ion transport. At the genus level, the MLP supplementation significantly increased the abundance of Phascolarctobacterium, whereas decreased the abundance of Candidatus_Saccharimonas in LPS challenged hens (P < 0.05). The metabolites altered by dietary supplementation with MLP were mainly involved in galactose, uronic acid, histidine, pyruvate and primary bile acid metabolism. Dietary supplementation with MLP inversely regulates LPS-induced differential metabolites such as LysoPA (24:0/0:0) (P < 0.05). CONCLUSIONS In summary, dietary supplementation with microencapsulated Lactiplantibacillus plantarum prevented salpingitis by modulating the abundances of Candidatus_Saccharimonas, Phascolarctobacterium, Ruminococcus_torques_group and Eubacterium_hallii_group while downregulating the levels of plasma metabolites, p-tolyl sulfate, o-cresol and N-acetylhistamine and upregulating S-lactoylglutathione, simultaneously increasing the expressions of CPNE4, CNTN3 and ACAN genes in the uterus, and ultimately inhibiting oviducal inflammation.
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Affiliation(s)
- Dan Song
- College of Animal Science and Technology, Northwest A&F University, Shaanxi, People's Republic of China
- Key Laboratory of Grain and Oil Biotechnology of National Food and Strategic Reserves Administration, Academy of National Food and Strategic Reserves Administration, Beijing, People's Republic of China
| | - Aike Li
- Key Laboratory of Grain and Oil Biotechnology of National Food and Strategic Reserves Administration, Academy of National Food and Strategic Reserves Administration, Beijing, People's Republic of China
| | - Bingxu Chen
- College of Animal Science and Technology, Northwest A&F University, Shaanxi, People's Republic of China
- Key Laboratory of Grain and Oil Biotechnology of National Food and Strategic Reserves Administration, Academy of National Food and Strategic Reserves Administration, Beijing, People's Republic of China
| | - Jia Feng
- College of Animal Science and Technology, Northwest A&F University, Shaanxi, People's Republic of China
| | - Tao Duan
- Key Laboratory of Grain and Oil Biotechnology of National Food and Strategic Reserves Administration, Academy of National Food and Strategic Reserves Administration, Beijing, People's Republic of China
| | - Junlin Cheng
- Key Laboratory of Grain and Oil Biotechnology of National Food and Strategic Reserves Administration, Academy of National Food and Strategic Reserves Administration, Beijing, People's Republic of China
| | - Lixian Chen
- Key Laboratory of Grain and Oil Biotechnology of National Food and Strategic Reserves Administration, Academy of National Food and Strategic Reserves Administration, Beijing, People's Republic of China
| | - Weiwei Wang
- Key Laboratory of Grain and Oil Biotechnology of National Food and Strategic Reserves Administration, Academy of National Food and Strategic Reserves Administration, Beijing, People's Republic of China.
| | - Yuna Min
- College of Animal Science and Technology, Northwest A&F University, Shaanxi, People's Republic of China.
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Xiao X, Wang J, Zhu Y, Deng B, Liu Y, Wang S, Hou T, Song T. Phytosterols Protect against Osteoporosis by Regulating Gut Microbiota. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:14539-14549. [PMID: 37756430 DOI: 10.1021/acs.jafc.3c01489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/29/2023]
Abstract
Osteoporosis is increasingly prevalent worldwide, representing a major health burden. However, there is a lack of nutritional strategies for osteoporotic therapy. Phytosterols, as natural bioactive compounds, have the potential to alleviate osteoporosis. In this study, a glucocorticoid-induced osteoporosis mouse model and treatment with low and high concentrations of phytosterols for 4 weeks were established. The results demonstrated that compared to the control group, low-concentration phytosterols (LP) (0.3 mg/mL) increased bone mass, improved trabecular microstructure, reduced serum levels of cross-linked C-telopeptide of type I collagen (CTX-1), and elevated serum levels of 1,25-dihydroxyvitamin D3 (1,25-(OH)2D3). Conversely, high-concentration phytosterols (0.5 mg/mL) showed no effect. Additionally, we validated the effect of LP in ameliorating osteoporosis using an ovariectomized (OVX)-induced osteoporosis mouse model. Mechanistically, phytosterols altered the microbial composition to counteract glucocorticoid-induced gut microbiota disorder and improve the length and morphology of the small intestine. Particularly, based on selection strategy and correlation analysis, phytosterols increased the relative abundance of Ruminococcus and decreased the relative abundance of Bilophila, which were significantly associated with glucocorticoid-induced osteoporosis indications. Overall, these findings suggest that phytosterols regulate gut microbiota to increase bone mass, thereby exerting an antiosteoporotic effect.
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Affiliation(s)
- Xiangyu Xiao
- College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- Frontiers Science Center for Animal Breeding and Sustainable Production, Wuhan 430070, China
| | - Jiaojiao Wang
- College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Yucheng Zhu
- College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Bohua Deng
- College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Yucheng Liu
- College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Shaoshuai Wang
- College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Tao Hou
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Tongxing Song
- College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- Frontiers Science Center for Animal Breeding and Sustainable Production, Wuhan 430070, China
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Guo P, Lin S, Lin Q, Wei S, Ye D, Liu J. The digestive tract histology and geographical distribution of gastrointestinal microbiota in yellow-feather broilers. Poult Sci 2023; 102:102844. [PMID: 37579647 PMCID: PMC10448343 DOI: 10.1016/j.psj.2023.102844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/28/2023] [Accepted: 06/01/2023] [Indexed: 08/16/2023] Open
Abstract
Exhaustive understanding of intestinal physiological characteristics is the critical precondition for the improvement of intestinal health and growth performance of yellow-feather broilers (YFB). As a vital part of gastrointestinal tract, the symbiotic, complex, and variable microbiota have a profound effect on the nutrition, immunity, health, and production of broilers. Hence, the development status of proventriculus, jejunum, and cecum, and spatial heterogeneity of bacterial community in crop, proventriculus, gizzard, jejunum, cecum, and rectum of adult YFB were detected in our study. The results revealed that proventriculus, jejunum, and cecum of broilers are well-developed based on morphological observation. The Chao and Shannon indexes in cecum and rectum are notably higher than other sections and their microbiota structure is also distinct from foregut. Firmicutes and Lactobacillus are the predominant phylum and genus in all gastrointestinal sections, respectively. As feature species of crop, Lactobacillus spp. mainly settle in foregut, whereas some Clostridia species (unclassified Lachnospiraceae, Faecalibacterium, Romboutsia and so on) are characteristic and more abundant in cecum and rectum. Interestingly, there are 2 Ruminococcus torques strains positively and negatively correlated with cecum development, respectively. In a whole, our findings reveal the specialized digestive physiology and regional distribution of intestinal microbiota in YFB, which provides a reference for the future study on the improvement of growth performance and intestinal development through microbiota manipulation in yellow-feather broilers.
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Affiliation(s)
- Pingting Guo
- College of Animal Science (College of Bee Science), Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Shiying Lin
- College of Animal Science (College of Bee Science), Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Qingjie Lin
- College of Animal Science (College of Bee Science), Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Suhong Wei
- College of Animal Science (College of Bee Science), Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Dingcheng Ye
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
| | - Jing Liu
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China.
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Zheng C, Chen Z, Yan X, Xiao G, Qiu T, Ou J, Cen M, Li W, Huang Y, Cao Y, Zhang H. Effects of a combination of lauric acid monoglyceride and cinnamaldehyde on growth performance, gut morphology, and gut microbiota of yellow-feathered broilers. Poult Sci 2023; 102:102825. [PMID: 37356297 PMCID: PMC10404782 DOI: 10.1016/j.psj.2023.102825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 05/25/2023] [Accepted: 05/26/2023] [Indexed: 06/27/2023] Open
Abstract
A total of 480 one-day-old male yellow-feathered broilers were randomly divided into 4 groups with 6 replicates of 20 chicks per replicate. A basal diet was administered to the control group (CON), whereas CML350, CML500, and CML1000 groups were fed with basal diet supplemented with 350, 500, and 1,000 mg/kg of lauric acid monoglyceride and cinnamaldehyde complex, respectively. However, adding 500 mg/kg of lauric acid monoglyceride and cinnamaldehyde complex improved weight gain (P < 0.01), enhanced intestinal morphology, increased serum total protein and albumin content, and total antioxidant capacity (P < 0.01), and significantly increased the Chao1 and Ace indices (P < 0.01), indicating an increase in the richness of the gut microbiota. At the phylum level, CML500 group reduced the abundance of Fusobacteriota at 21 d and Proteobacteria at 42 d (P < 0.01). At the genus level, CML500 group increased the abundance of Faecalibacterium and Alistipes at 42 d (P < 0.01) and decreased the abundance of Escherichia-Shigella (P < 0.01). At the species level, CML500 group reduced the abundance of Escherichia coli at 42 d (P < 0.01) and increased the abundance of Alistipes_sp_CHKCI003 at 42 d (P < 0.01). According to these results, adding 500 mg/kg of lauric acid monoglyceride and cinnamaldehyde complex in feed can improve the growth performance, intestinal morphology, and gut microbiota of yellow-feathered broilers.
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Affiliation(s)
- Chaojun Zheng
- School of Life Science and Engineering, Foshan University, Foshan 528000, China
| | - Zifan Chen
- School of Life Science and Engineering, Foshan University, Foshan 528000, China
| | - Xia Yan
- Guangdong Academy of Agricultural Sciences, Guangzhou 510000, China
| | - Gengsheng Xiao
- School of Life Science and Engineering, Foshan University, Foshan 528000, China
| | - Ting Qiu
- School of Life Science and Engineering, Foshan University, Foshan 528000, China
| | - Jiancun Ou
- School of Life Science and Engineering, Foshan University, Foshan 528000, China
| | - Mingzhu Cen
- School of Life Science and Engineering, Foshan University, Foshan 528000, China
| | - Wenlong Li
- School of Life Science and Engineering, Foshan University, Foshan 528000, China
| | - Yurong Huang
- School of Life Science and Engineering, Foshan University, Foshan 528000, China
| | - Yu Cao
- CALID Biotechnology (Wuhan) Co. Ltd., Wuhan 30074, China
| | - Huihua Zhang
- School of Life Science and Engineering, Foshan University, Foshan 528000, China.
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Payen C, Kerouanton A, Novoa J, Pazos F, Benito C, Denis M, Guyard M, Moreno FJ, Chemaly M. Effects of Major Families of Modulators on Performances and Gastrointestinal Microbiota of Poultry, Pigs and Ruminants: A Systematic Approach. Microorganisms 2023; 11:1464. [PMID: 37374967 DOI: 10.3390/microorganisms11061464] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 05/25/2023] [Accepted: 05/26/2023] [Indexed: 06/29/2023] Open
Abstract
Considering the ban on the use of antibiotics as growth stimulators in the livestock industry, the use of microbiota modulators appears to be an alternative solution to improve animal performance. This review aims to describe the effect of different families of modulators on the gastrointestinal microbiota of poultry, pigs and ruminants and their consequences on host physiology. To this end, 65, 32 and 4 controlled trials or systematic reviews were selected from PubMed for poultry, pigs and ruminants, respectively. Microorganisms and their derivatives were the most studied modulator family in poultry, while in pigs, the micronutrient family was the most investigated. With only four controlled trials selected for ruminants, it was difficult to conclude on the modulators of interest for this species. For some modulators, most studies showed a beneficial effect on both the phenotype and the microbiota. This was the case for probiotics and plants in poultry and minerals and probiotics in pigs. These modulators seem to be a good way for improving animal performance.
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Affiliation(s)
- Cyrielle Payen
- French Agency for Food, Environmental and Occupational Health and Safety, ANSES, Hygiene and Quality of Poultry, Pig Products Unit, 22440 Ploufragan, France
| | - Annaëlle Kerouanton
- French Agency for Food, Environmental and Occupational Health and Safety, ANSES, Hygiene and Quality of Poultry, Pig Products Unit, 22440 Ploufragan, France
| | - Jorge Novoa
- Computational Systems Biology Group, National Centre for Biotechnology (CNB-CSIC), Darwin 3, 28049 Madrid, Spain
| | - Florencio Pazos
- Computational Systems Biology Group, National Centre for Biotechnology (CNB-CSIC), Darwin 3, 28049 Madrid, Spain
| | - Carlos Benito
- Instituto de Gestión de la Innovación y del Conocimiento, INGENIO (CSIC and U. Politécnica de Valencia), Edificio 8E, Cam. de Vera, 46022 Valencia, Spain
| | - Martine Denis
- French Agency for Food, Environmental and Occupational Health and Safety, ANSES, Hygiene and Quality of Poultry, Pig Products Unit, 22440 Ploufragan, France
| | - Muriel Guyard
- French Agency for Food, Environmental and Occupational Health and Safety, ANSES, Hygiene and Quality of Poultry, Pig Products Unit, 22440 Ploufragan, France
| | - F Javier Moreno
- Instituto de Investigación en Ciencias de la Alimentación (CIAL), CSIC-UAM, CEI (UAM + CSIC), Nicolás Cabrera 9, 28049 Madrid, Spain
| | - Marianne Chemaly
- French Agency for Food, Environmental and Occupational Health and Safety, ANSES, Hygiene and Quality of Poultry, Pig Products Unit, 22440 Ploufragan, France
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10
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Bopape MA, Erlwanger KH, Lembede BW, Chivandi E. β-sitosterol as an alternative to oxytetracycline: Effect on growth performance, feed intake and utilization efficiency and viscera macromorphometry of Cobb 500 broiler chickens. Vet Anim Sci 2022; 19:100283. [PMID: 36684817 PMCID: PMC9853345 DOI: 10.1016/j.vas.2022.100283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Antibiotics are used to fortify broiler chicken feeds as growth promoters. Chronic antibiotic use pollutes the environment and causes the development of antibiotic resistance. Natural alternatives that mimic the properties of antibiotics, without causing health and environmental challenges are required. β-sitosterol has antimicrobial, antioxidant, digestive and immune system modulating and growth stimulating activities. We evaluated its potential to replace oxytetracycline as a growth-promoter in broiler chicken feeds. Two hundred and forty, one-day-old Cobb 500 broiler chicks were randomly allocated to four diets where β-sitosterol replaced oxytetracycline at 0 mg/kg (control; fortified with 50 mg/kg oxytetracycline), 500 mg/kg, 1000 mg/kg and 1500 mg/kg (w/w) feed and fed for 6 weeks: 2 weeks for each growth phase. Each diet was replicated thrice with 20 chicks per replicate. Initial, weekly and terminal body mass (TBM) and daily feed intake (FI) were measured. Body mass gain (BMG), average daily gain (ADG) and feed conversion ratio were computed. Terminally, the chickens were fasted for 4 h then slaughtered and dressed. Gastrointestinal tract (GIT) and GIT accessory viscera masses and small and large intestine lengths were measured. Dietary fortification with β-sitosterol had similar effects (P > 0.05) to oxytetracycline on the chickens' TBM, BMG, ADG, FI and utilisation efficiency and GIT organ macromorphometry. In conclusion, β-sitosterol can replace oxytetracycline in Cobb 500 broiler chicken feeds without compromising growth performance, feed intake and utilisation efficiency and GIT organ growth and development.
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Affiliation(s)
- Malebogo A. Bopape
- University of the Witwatersrand, School of Physiology, Faculty of Health Sciences, 7 York Road, Parktown, Johannesburg, 2193, South Africa,Sol Plaatje University, School of Natural and Applied Science, Department of Biological and Agricultural Sciences, Private Bag X5008, Kimberley, 8300, South Africa,Corresponding author.
| | - Kennedy H. Erlwanger
- Sol Plaatje University, School of Natural and Applied Science, Department of Biological and Agricultural Sciences, Private Bag X5008, Kimberley, 8300, South Africa
| | - Busisani W. Lembede
- Sol Plaatje University, School of Natural and Applied Science, Department of Biological and Agricultural Sciences, Private Bag X5008, Kimberley, 8300, South Africa
| | - Eliton Chivandi
- Sol Plaatje University, School of Natural and Applied Science, Department of Biological and Agricultural Sciences, Private Bag X5008, Kimberley, 8300, South Africa
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11
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Feng X, Li T, Zhu H, Liu L, Bi S, Chen X, Zhang H. Effects of challenge with Clostridium perfringens, Eimeria and both on ileal microbiota of yellow feather broilers. Front Microbiol 2022; 13:1063578. [PMID: 36532499 PMCID: PMC9754095 DOI: 10.3389/fmicb.2022.1063578] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 11/17/2022] [Indexed: 10/07/2023] Open
Abstract
In the poultry industry worldwide, Clostridium perfringens has been causing major economic loss as it can cause necrotic enteritis (NE). The coccidial infection has been considered as the most important predisposing factor of NE caused by C. perfringens. In this study, we aimed to advance our knowledge on ileal microbiota of yellow feather broilers under C. perfringens and/or Eimeria challenge. Total of 80 healthy day old yellow feather broilers were randomly assigned to four groups including: Control, C. perfringens challenge group (C. Per), Eimeria challenge group (Cocc), and C. perfringens plus Eimeria challenge group (Comb). On day 14, the Cocc and Comb group broilers were orally gavaged 1 ml PBS solution containing 25,000 oocysts of Eimeria brunetti and 25,000 oocysts of Eimeria maxima. Starting on day 17, the C. Per and Comb group broilers were orally gavaged 10 mL of C. perfringens per bird (4 × 107 CFU/mL, ATCC® 13124™ Strain) every day for 6 days. 16S rRNA gene sequencing was performed on extracted DNA of ileal digesta samples. The results showed that C. perfringens alone did not affect the alpha diversity of ileal microbiome in yellow feather broilers but co-infection with Eimeria significantly decreased the diversity of ileal microbiota. C. perfringens and Eimeria challenge also decreased the relative abundance of beneficial bacteria including Bacteroidetes at the phylum level and Faecalibacterium at the genus level. At the species level, the relative abundance of Candidatus Arthromitus was significantly decreased in the Eimeria challenged groups. This microbial shift information of ileal microbiota under C. Perfringens and Eimeria challenge provide important reference data for the development of therapeutic approaches to necrotic enteritis in yellow-feather broiler chickens.
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Affiliation(s)
- Xin Feng
- School of Life Sciences and Engineering, Foshan University, Foshan, China
| | - Tonghao Li
- School of Life Sciences and Engineering, Foshan University, Foshan, China
| | - Hui Zhu
- School of Life Sciences and Engineering, Foshan University, Foshan, China
| | - Lidan Liu
- Foshan Zhengdian Biology Technology Co., Ltd., Foshan, China
| | - Shengqun Bi
- School of Life Sciences and Engineering, Foshan University, Foshan, China
| | - Xiaolin Chen
- School of Life Sciences and Engineering, Foshan University, Foshan, China
| | - Huihua Zhang
- School of Life Sciences and Engineering, Foshan University, Foshan, China
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12
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Liu D, Pi J, Zhang B, Zeng H, Li C, Xiao Z, Fang F, Liu M, Deng N, Wang J. Phytosterol of lotus seed core powder alleviates hypercholesterolemia by regulating gut microbiota in high-cholesterol diet-induced C57BL/6J mice. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.102279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
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13
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Xie T, Liu W, Chen Y, Zhou Y. An evaluation of graded levels of beta-sitosterol supplementation on growth performance, antioxidant status, and intestinal permeability-related parameters and morphology in broiler chickens at an early age. Poult Sci 2022; 101:102108. [PMID: 36099659 PMCID: PMC9472065 DOI: 10.1016/j.psj.2022.102108] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 07/16/2022] [Accepted: 08/01/2022] [Indexed: 11/29/2022] Open
Abstract
This study was designed to examine the effects of different levels of beta-sitosterol (BS) supplementation on growth performance, serum biochemical indices, redox status, and intestinal permeability-related parameters and morphology of young broilers. Two hundred and forty male Arbor Acres broiler chicks were allocated into 5 groups of 6 replicates with 8 birds each, and fed a basal diet supplemented with 0, 25, 50, 75, and 100 mg/kg BS for 21-d, respectively. The BS quadratically decreased feed conversion ratio during 1 to 14 d and 1 to 21 d, with its effect being more prominent at 25 or 50 mg/kg (P < 0.05). The BS linearly and quadratically reduced 14-d plasma diamine oxidase activity and D-lactate level, and this effect was more pronounced when its supplemental level was 25 or 50 mg/kg (P < 0.05). The BS linearly increased duodenal villus height (VH) and quadratically increased jejunal VH and ratio of VH and crypt depth (CD) at 14 d, and these effects in 25 mg/kg group were more remarkable (P < 0.05). Similarly, BS linearly or quadratically increased VH and ratio of VH and CD, but decreased CD in the jejunum and ileum at 21 d, with these effects being more pronounced at 50 mg/kg (P < 0.05). The BS supplementation especially at 50 or 75 mg/kg linearly or quadratically reduced 14-d serum and 21-d hepatic malondialdehyde concentration, and increased serum glutathione peroxidase and catalase activities at 14 and 21 d (P < 0.05). Moreover, the BS administration linearly and/or quadratically increased glutathione peroxidase, catalase, and superoxide dismutase activities and glutathione level, and reduced malondialdehyde accumulation in the intestinal mucosa at 14 and/or 21 d, and these consequences were more significant in 50 to 100 mg/kg BS-supplemented groups (P < 0.05). The results demonstrated that BS administration could improve growth performance, intestinal barrier function, and antioxidant status of broilers at an early age, with these effects being more pronounced at a level of 50 mg/kg.
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Affiliation(s)
- Ting Xie
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Wenhan Liu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Yueping Chen
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, People's Republic of China.
| | - Yanmin Zhou
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
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14
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Chen F, Zhang H, Du E, Fan Q, Zhao N, Jin F, Zhang W, Guo W, Huang S, Wei J. Supplemental magnolol or honokiol attenuates adverse effects in broilers infected with Salmonella pullorum by modulating mucosal gene expression and the gut microbiota. J Anim Sci Biotechnol 2021; 12:87. [PMID: 34365974 PMCID: PMC8351427 DOI: 10.1186/s40104-021-00611-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Accepted: 06/07/2021] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Salmonella pullorum is one of the most harmful pathogens to avian species. Magnolol and honokiol, natural compounds extracted from Magnolia officinalis, exerts anti-inflammatory, anti-oxidant and antibacterial activities. This study was conducted to evaluate the effects of dietary supplemental magnolol and honokiol in broilers infected with S. pullorum. A total of 360 one-day-old broilers were selected and randomly divided into four groups with six replicates: the negative control group (CTL), S. pullorum-infected group (SP), and the S. pullorum-infected group supplemented with 300 mg/kg honokiol (SPH) or magnolol (SPM). RESULTS The results showed that challenging with S. pullorum impaired growth performance in broilers, as indicated by the observed decreases in body weight (P < 0.05) and average daily gains (P < 0.05), along with increased spleen (P < 0.01) and bursa of Fabricus weights (P < 0.05), serum globulin contents, and the decreased intestine villus height and villus/crypt ratios (P < 0.05). Notably, supplemental magnolol and honokiol attenuated these adverse changes, and the effects of magnolol were better than those of honokiol. Therefore, we performed RNA-Seq in ileum tissues and 16S rRNA gene sequencing of ileum bacteria. Our analysis revealed that magnolol increased the α-diversity (observed species, Chao1, ACE, and PD whole tree) and β-diversity of the ileum bacteria (P < 0.05). In addition, magnolol supplementation increased the abundance of Lactobacillus (P < 0.01) and decreased unidentified Cyanobacteria (P < 0.05) both at d 14 and d 21. Further study confirmed that differentially expressed genes induced by magnolol and honokiol supplementation enriched in cytokine-cytokine receptor interactions, in the intestinal immune network for IgA production, and in the cell adhesion molecule pathways. CONCLUSIONS Supplemental magnolol and honokiol alleviated S. pullorum-induced impairments in growth performance, and the effect of magnolol was better than that of honokiol, which could be partially due to magnolol's ability to improve the intestinal microbial and mucosal barrier.
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Affiliation(s)
- Fang Chen
- Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Sciences, Wuhan, China
- Hubei Key Laboratory of Animal Embryo and Molecular Breeding, Wuhan, China
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture and Rural Affairs), Wuhan, China
| | - Hao Zhang
- Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Encun Du
- Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Sciences, Wuhan, China.
| | - Qiwen Fan
- Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Na Zhao
- Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Feng Jin
- Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Wei Zhang
- Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Wanzheng Guo
- Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Shaowen Huang
- Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Jintao Wei
- Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Sciences, Wuhan, China.
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15
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Ding XQ, Yuan CC, Huang YB, Jiang L, Qian LC. Effects of phytosterol supplementation on growth performance, serum lipid, proinflammatory cytokines, intestinal morphology, and meat quality of white feather broilers. Poult Sci 2021; 100:101096. [PMID: 34087700 PMCID: PMC8182435 DOI: 10.1016/j.psj.2021.101096] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 02/25/2021] [Accepted: 02/27/2021] [Indexed: 11/07/2022] Open
Abstract
The aim of this study was to evaluate the effects of dietary phytosterol (PS) addition at different levels on growth performance, serum lipid, proinflammatory cytokines, intestinal morphology, and meat quality in broilers. A total of 600, 1-day-old male broilers were allocated into five groups with six replicates and were fed a basal diet supplemented with 0 (control group), 10, 20, 40, or 80 mg/kg PS for 42 days. Compared with the control group, the administration of PS at doses of 40 and 80 mg/kg significantly increased the average daily feed intake and average daily gain of broilers during the experimental period. Similarly, PS at a dosage of 20 and 40 mg/kg increased the concentrations of interleukin-1β, interferon-γ, interleukin-2, and interleukin-6 but decreased triglyceride, total cholesterol, and low-density lipoprotein cholesterol content of serum (P < 0.05). Dietary PS at less than or equal to 40 mg/kg level increased (P < 0.05) villus height, and villus height to crypt depth ratio in the duodenum and ileum. Supplementing PS increased the pH value at 45 min post-mortem and decreased drip loss and shear force of breast muscle (P < 0.05). Dietary PS administration at 20 and 40 mg/kg decreased malondialdehyde accumulation but increased total antioxidant capacity and superoxide dismutase activity of breast muscle compared with the control group (P < 0.05). PS increased the concentrations of total amino acids and flavor amino acids as well as eicosapentaenoic acid, docosahexaenoic acid, and total polyunsaturated fatty acids but decreased saturated fatty acids in breast muscle (P < 0.05). It was concluded that dietary PS supplementation, especially at 40 mg/kg, could improve growth performance, serum lipid, proinflammatory cytokines, intestinal morphology, and meat quality in broilers, providing insights into its application as a potential feed additive in broiler production.
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Affiliation(s)
- X Q Ding
- Key Laboratory of Animal Nutrition and Feed Science in East China, Ministry of Agriculture, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - C C Yuan
- Key Laboratory of Animal Nutrition and Feed Science in East China, Ministry of Agriculture, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Y B Huang
- Key Laboratory of Animal Nutrition and Feed Science in East China, Ministry of Agriculture, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - L Jiang
- Key Laboratory of Animal Nutrition and Feed Science in East China, Ministry of Agriculture, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - L C Qian
- Key Laboratory of Animal Nutrition and Feed Science in East China, Ministry of Agriculture, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China.
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