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Kiernan DP, O’Doherty JV, Sweeney T. The Effect of Prebiotic Supplements on the Gastrointestinal Microbiota and Associated Health Parameters in Pigs. Animals (Basel) 2023; 13:3012. [PMID: 37835619 PMCID: PMC10572080 DOI: 10.3390/ani13193012] [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: 08/11/2023] [Revised: 09/18/2023] [Accepted: 09/22/2023] [Indexed: 10/15/2023] Open
Abstract
Establishing a balanced and diverse microbiota in the GIT of pigs is crucial for optimizing health and performance throughout the production cycle. The post-weaning period is a critical phase, as it is often associated with dysbiosis, intestinal dysfunction and poor performance. Traditionally, intestinal dysfunctions associated with weaning have been alleviated using antibiotics and/or antimicrobials. However, increasing concerns regarding the prevalence of antimicrobial-resistant bacteria has prompted an industry-wide drive towards identifying natural sustainable dietary alternatives. Modulating the microbiota through dietary intervention can improve animal health by increasing the production of health-promoting metabolites associated with the improved microbiota, while limiting the establishment and proliferation of pathogenic bacteria. Prebiotics are a class of bioactive compounds that resist digestion by gastrointestinal enzymes, but which can still be utilized by beneficial microbes within the GIT. Prebiotics are a substrate for these beneficial microbes and therefore enhance their proliferation and abundance, leading to the increased production of health-promoting metabolites and suppression of pathogenic proliferation in the GIT. There are a vast range of prebiotics, including carbohydrates such as non-digestible oligosaccharides, beta-glucans, resistant starch, and inulin. Furthermore, the definition of a prebiotic has recently expanded to include novel prebiotics such as peptides and amino acids. A novel class of -biotics, referred to as "stimbiotics", was recently suggested. This bioactive group has microbiota-modulating capabilities and promotes increases in short-chain fatty acid (SCFA) production in a disproportionally greater manner than if they were merely substrates for bacterial fermentation. The aim of this review is to characterize the different prebiotics, detail the current understating of stimbiotics, and outline how supplementation to pigs at different stages of development and production can potentially modulate the GIT microbiota and subsequently improve the health and performance of animals.
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Affiliation(s)
- Dillon P. Kiernan
- School of Veterinary Medicine, University College Dublin, Belfield, D04 W6F6 Dublin, Ireland;
| | - John V. O’Doherty
- School of Agriculture and Food Science, University College Dublin, Belfield, D04 W6F6 Dublin, Ireland;
| | - Torres Sweeney
- School of Veterinary Medicine, University College Dublin, Belfield, D04 W6F6 Dublin, Ireland;
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Hodkovicova N, Halas S, Tosnerova K, Stastny K, Svoboda M. The use of functional amino acids in different categories of pigs - A review. VET MED-CZECH 2023; 68:299-312. [PMID: 37982122 PMCID: PMC10646542 DOI: 10.17221/72/2023-vetmed] [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: 06/29/2023] [Accepted: 08/11/2023] [Indexed: 11/21/2023] Open
Abstract
The present review deals with a particularly important topic: the use of functional amino acids in different categories of pigs. It is especially relevant in the context of the current efforts to reduce the use of antibiotics in pig farming and the search for possible alternatives to replace them. The review is based on the definition that functional amino acids (FAAs) are classified as dispensable amino acids, but with additional biological functions, i.e., not only are they used for protein formation, but they are also involved in regulating essential metabolic pathways to improve health, survival, growth, and development. We describe the mechanism of action of individual FAAs and their potential use in pigs, including glutamate, glutamine, arginine, branched-chain amino acids (i.e., leucine, isoleucine, and valine), tryptophan and glycine. The work is divided into three parts. The first part deals with the FAAs and their role in the overall health of sows and their offspring. The second part describes the use of functional amino acids in piglets after weaning. Part three examines the use of functional amino acids in growing and fattening pigs and their impact on meat quality.
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Affiliation(s)
- Nikola Hodkovicova
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czech Republic
| | - Simon Halas
- Department of Animal Nutrition and Husbandry, University of Veterinary Medicine and Pharmacy in Kosice, Kosice, Slovak Republic
| | - Kristina Tosnerova
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czech Republic
| | - Kamil Stastny
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czech Republic
| | - Martin Svoboda
- Ruminant and Swine Clinic, University of Veterinary Sciences Brno, Brno, Czech Republic
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Liu G, Liu H, Tian W, Liu C, Yang H, Wang H, Gao L, Huang Y. Dietary nucleotides influences intestinal barrier function, immune responses and microbiota in 3-day-old weaned piglets. Int Immunopharmacol 2023; 117:109888. [PMID: 36827918 DOI: 10.1016/j.intimp.2023.109888] [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: 01/10/2023] [Revised: 02/09/2023] [Accepted: 02/10/2023] [Indexed: 02/24/2023]
Abstract
Nucleotides (NTs) play a pivotal role in the growth and development of the intestine. This study aimed to evaluate the effects of nucleotides supplementation on the intestinal barrier function, immune responses and microbiota in 3-day-old weaned piglets. Ninety-six piglets weaned at 3-days after birth were randomly assigned to 2 treatments (6 replicates/treatment, 8 piglets/replicate) according to the average body weight. The dietary treatments consisted of the control (CON; fed a basal artificial milk) and nucleotides groups (NT; fed a basal artificial milk with 0.035 % nucleotides, the contents of CMP, UMP, AMP, GMP, and IMP were 1:1:1:1:1, respectively). Diarrhea rates were recorded, and blood and intestinal samples were collected on day 35 of the piglets. The current study showed that NTs supplementation tended to decrease the diarrhea rate of weaned piglets (P < 0.10). NTs increased villus height and the villus height-to-crypt depth (V/C) ratio in the ileum (P < 0.05). Dietary NTs up-regulated protein expression of ZO-1 in ileal mucosa (P < 0.05), and the protein expression of Occludin tended to increase. Furthermore, NTs up-regulated the mRNA expression of Mucin (MUC)2, while the mRNA expression of MUC4 was down-regulated in the ileal mucosa (P < 0.05). Besides, supplementation with NTs increased the ileal mucosa genes expression of IL-21, INF-γ, IL-10, IL-4, IL-6 and TNF-α (P < 0.05). Furthermore, dietary NTs increased the protein expression of NF-κB, IL-6 and TNF-α (P < 0.05), and the proteins expression of Occludin and p-NF-κB tended to be up-regulated in the ileal mucosa (P < 0.10). Furthermore, NTs supplementation increased short chain fatty acid in the colonic (P < 0.05). And NTs supplementation reduced the Firmicutes/Bacteroidota ratio in the colon, at the genus level, NTs enriched the relative abundance of Prevotella, Faecalibacterium and Olsenella (P < 0.05). These data indicate that NTs could increase the villus height, increase the V/C, regulate the expression of tight junction protein and mucin, improve the intestinal barrier of piglets, regulate the secretion of cytokines, improve the biological immunity, increase the abundance of beneficial bacteria, and thus reduce the diarrhea of piglets.
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Affiliation(s)
- Gangyi Liu
- College of Animal Science and Technology, Guangxi University, Nanning 530004, Guangxi, China; Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, the Chinese Academy of Sciences, Changsha 410125, China
| | - Hongwei Liu
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, the Chinese Academy of Sciences, Changsha 410125, China
| | - Wen Tian
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, the Chinese Academy of Sciences, Changsha 410125, China
| | - Chunxue Liu
- Anyou Biotechnology Group Co., LTD., Taicang 215437, China
| | - Hongjun Yang
- Joint Laboratory of Functional Nutrition and Animal Health, Centree Bio-tech (Wuhan) Co., LTD., Wuhan 430071, China
| | - Hong Wang
- Meiya Hai'an pharmaceutical Co., Ltd., Hai'an 226600, China
| | - Lumin Gao
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, the Chinese Academy of Sciences, Changsha 410125, China.
| | - Yanna Huang
- College of Animal Science and Technology, Guangxi University, Nanning 530004, Guangxi, China.
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Wang HL, Liu Y, Zhou T, Gao L, Li J, Wu X, Yin YL. Uridine affects amino acid metabolism in sow-piglets model and increases viability of pTr2 cells. Front Nutr 2022; 9:1018349. [DOI: 10.3389/fnut.2022.1018349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Accepted: 09/22/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundAs an important nucleoside precursor in salvage synthesis pathway of uridine monophosphate, uridine (UR) is the most abundant nucleotide in sow milk. This study aimed to investigate the effects of maternal UR supplementation during second trimester of gestation on reproductive performance and amino acid metabolism of Sows.ResultsResults showed that compared to CON group, the average number of stillborn piglets per litter was significantly reduced (P < 0.05) with higher average piglet weight at birth in UR group (P = 0.083). Besides, dietary UR supplementation significantly increased TP in sow serum, BUN content in cord serum, and TP and ALB in newborn piglet serum (P < 0.05); but decreased AST level in sow serum and BUN level in piglet serum (P < 0.05). Importantly, free amino acids profile in sow serum newborn piglet serum and colostrum was changed by maternal UR supplementation during day 60 of pregnancy, as well as the expression of amino acids transporter (P < 0.05). In addition, from 100 to 2,000 μM UR can increased the viability of pTr2 cells. The UR exhibited higher distribution of G1/M phase of cell cycle at 400 μM compared with 0 μM, and reduced S-phases of cell cycle compared with 0 and 100μM (P < 0.05).ConclusionSupplementation of uridine during day 60 of pregnancy can improve reproductive performance, regulate amino acid metabolism of sows and their offspring, and increase the viability of pTr2 cells.
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Upadhaya SD, Kim IH. The Impact of Weaning Stress on Gut Health and the Mechanistic Aspects of Several Feed Additives Contributing to Improved Gut Health Function in Weanling Piglets-A Review. Animals (Basel) 2021; 11:ani11082418. [PMID: 34438875 PMCID: PMC8388735 DOI: 10.3390/ani11082418] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 08/07/2021] [Accepted: 08/09/2021] [Indexed: 12/26/2022] Open
Abstract
Simple Summary The current review aimed to provide an overview on the problems associated with weaning with a special focus on gut health, and also highlighted the nutritional approach using different kinds of feed additives and their mechanistic aspects in mitigating production inefficiencies and gut health dysfunction in weanling pigs. Abstract Newly weaned pig encounters psychosocial, physical, and nutritional stressors simultaneously when their immune system is not fully developed. These stressors have a cumulative effect on the immune response that contributes to the post-weaning growth lag which is characterized by depression in feed intake, reduced or negative growth rates, and increased susceptibility to pathogens in the first 24 to 48 h post-weaning. Consequently, the intestinal integrity, and digestive and absorptive capacity are impaired, and there is an increase in intestinal oxidative stress. It also causes the shifts in the taxonomic and functional properties of intestinal microbiome abruptly, thereby adversely affecting the health and performance of animals. It has been suggested that the effects of weaning stress on immune functions, intestinal barrier functions, and nervous system function in early weaned pigs extends into adulthood. The inclusion of different types of feed additives into the diet have been reported to alleviate the negative effects of weaning stress. The objective of this paper was to provide an overview on how the weaning stress affects gut health and the impact it has on production efficiencies, as well as the mechanistic aspects of several feed additives applied in reducing the weaning associated gut health problems and performance inefficiencies.
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Affiliation(s)
| | - In-Ho Kim
- Correspondence: ; Tel.: +82-41-550-3652; Fax: +82-41-565-2949
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Tan C, Li J, Ji Y, Yang Y, Zhao X, Chen M, Xin Z, Wen L, Cui Z, Shu G, Jiang Q. Effects of dietary supplementation of different amounts of yeast extract on oxidative stress, milk components, and productive performance of sows. Anim Feed Sci Technol 2021. [DOI: 10.1016/j.anifeedsci.2020.114648] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Blavi L, Solà-Oriol D, Llonch P, López-Vergé S, Martín-Orúe SM, Pérez JF. Management and Feeding Strategies in Early Life to Increase Piglet Performance and Welfare around Weaning: A Review. Animals (Basel) 2021; 11:302. [PMID: 33503942 PMCID: PMC7911825 DOI: 10.3390/ani11020302] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 01/13/2021] [Accepted: 01/20/2021] [Indexed: 12/20/2022] Open
Abstract
The performance of piglets in nurseries may vary depending on body weight, age at weaning, management, and pathogenic load in the pig facilities. The early events in a pig's life are very important and may have long lasting consequences, since growth lag involves a significant cost to the system due to reduced market weights and increased barn occupancy. The present review evidences that there are several strategies that can be used to improve the performance and welfare of pigs at weaning. A complex set of early management and dietary strategies have been explored in sows and suckling piglets for achieving optimum and efficient growth of piglets after weaning. The management strategies studied to improve development and animal welfare include: (1) improving sow housing during gestation, (2) reducing pain during farrowing, (3) facilitating an early and sufficient colostrum intake, (4) promoting an early social interaction between litters, and (5) providing complementary feed during lactation. Dietary strategies for sows and suckling piglets aim to: (1) enhance fetal growth (arginine, folate, betaine, vitamin B12, carnitine, chromium, and zinc), (2) increase colostrum and milk production (DL-methionine, DL-2-hydroxy-4-methylthiobutanoic acid, arginine, L-carnitine, tryptophan, valine, vitamin E, and phytogenic actives), (3) modulate sows' oxidative and inflammation status (polyunsaturated fatty acids, vitamin E, selenium, phytogenic actives, and spray dried plasma), (4) allow early microbial colonization (probiotics), or (5) supply conditionally essential nutrients (nucleotides, glutamate, glutamine, threonine, and tryptophan).
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Affiliation(s)
- Laia Blavi
- Department of Animal and Food Sciences, Animal Nutrition and Welfare Service, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; (D.S.-O.); (P.L.); (S.L.-V.); (S.M.M.-O.); (J.F.P.)
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Tan C, Ji Y, Zhao X, Xin Z, Li J, Huang S, Cui Z, Wen L, Liu C, Kim SW, Deng J, Yin Y. Effects of dietary supplementation of nucleotides from late gestation to lactation on the performance and oxidative stress status of sows and their offspring. ACTA ACUST UNITED AC 2020; 7:111-118. [PMID: 33997338 PMCID: PMC8110849 DOI: 10.1016/j.aninu.2020.10.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 10/22/2020] [Accepted: 10/27/2020] [Indexed: 12/15/2022]
Abstract
Increased metabolic burdens in breeding sows, which are induced by elevated systemic oxidative stress, could increase the need for nucleotides to repair lymphocyte DNA damage; however, de novo synthesis of nucleotides may be insufficient to cover this increased need. This study investigated the effects of dietary nucleotides on milk composition, oxidative stress status, and the reproductive and lactational performance of sows. Forty multiparous sows were assigned to 2 dietary treatments (Control group, and 1 g/kg Nucleotides group) based on a randomized complete block design using their BW at 85 d of gestation as a block. Sows from 2 groups were fed a restricted diet during gestation and ad libitum during lactation. The experiment lasted from 85 d of gestation to 21 d of lactation. The reproductive performance of sows and the growth performance of suckling piglets were measured. Oxidative stress parameters and milk components were also analysed. Data were analyzed using contrasts in the MIXED procedure of SAS. Sows in the Nucleotides group consumed more feed during the first week (P < 0.01) and from 1 to 21 d (P < 0.05) of lactation than those in Control group. Correspondingly, the litter weight gain of piglets showed a tendency to increase from cross-fostering to 9 d (P = 0.09) and from cross-fostering to 20 d (P = 0.10) in the Nucleotides group relative to the Control group. Additionally, the Nucleotides group was higher (P < 0.01) than the Control group in the concentrations of uridine 5'monophosphate, guanosine 5'monophosphate, inosine 5'monophosphate, adenosine 5'monophosphate and total nucleotides in milk. Furthermore, the Nucleotides group was higher (P < 0.01) than the Control group in the serum levels of total antioxidant capacity (P < 0.01) for sows at 109 d of gestation and glutathione peroxidase for weaning piglets, but lower at the levels of thiobarbituric acid-reactive substances (P < 0.05) in serum of weaning piglets. This study indicated that maternal dietary nucleotides could promote piglet growth, probably due to the higher lactational feed intake and higher concentration of nucleotides in the milk of sows, and lower oxidative stress for both sows and piglets.
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Affiliation(s)
- Chengquan Tan
- Guangdong Laboratory of Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Yongcheng Ji
- Guangdong Laboratory of Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Xichen Zhao
- Guangdong Laboratory of Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Zhongquan Xin
- Guangdong Laboratory of Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Jiaying Li
- Guangdong Laboratory of Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Shuangbo Huang
- Guangdong Laboratory of Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Zhiying Cui
- Guangdong Hinabiotech Co., Ltd., Guangzhou, 510642, China
| | - Lijun Wen
- Guangdong Hinabiotech Co., Ltd., Guangzhou, 510642, China
| | - Caihua Liu
- Hubei Hiyee Biological Technology Co., Ltd., Xiangyang, 510642, China
| | - Sung Woo Kim
- Department of Animal Science North Carolina State University, Raleigh, NC, 27695, USA
| | - Jinping Deng
- Guangdong Laboratory of Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Yulong Yin
- National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China
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Berto PN, Tse MLP, Ramos DÊRA, Saleh MAD, Miassi GM, Yamatogi RS, Berto DA, Trindade Neto MA. Dietary supplementation with hydrolyzed yeast and its effect on the performance, intestinal microbiota, and immune response of weaned piglets. AN ACAD BRAS CIENC 2020; 92:e20180969. [PMID: 32756838 DOI: 10.1590/0001-3765202020180969] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 02/26/2019] [Indexed: 11/21/2022] Open
Abstract
The objective of this study was to evaluate the effects of autolyzed yeast on performance, cecal microbiota, and leukogram of weaned piglets. A total of 96 piglets of commercial line weaned at 21-day-old were used. The experimental design was a randomized block design with four treatments (diets containing 0.0%, 0.3%, 0.6%, and 0.9% autolyzed yeast), eight replicates, and three animals per pen in order to evaluate daily weight gain, daily feed intake, and feed conversion in periods of 0 to 15, 0 to 26, and 0 to 36 days. Quadratic effects of autolyzed yeast inclusion were observed on the feed conversion from 0 to 15 days, on daily weight gain from 0 to 15 days, 0 to 26 days and, 0 to 36 days, indicating an autolyzed yeast optimal inclusion level between 0.4% and 0.5%. No effect from autolyzed yeast addition was observed on piglet daily feed intake, cecal microbiota, and leukogram; however, i.m. application of E. coli lipopolysaccharide reduced the values of total leukocytes and their fractions (neutrophils, eosinophils, lymphocytes, monocytes, and rods). Therefore, autolyzed yeast when provided at levels between 0.4% and 0.5% improved weaned piglets' performance.
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Affiliation(s)
- PatrÍcia N Berto
- Departamento de Zootecnia, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo/USP, Av. Duque de Caxias Norte, 225, 13635-900 Pirassununga, SP, Brazil
| | - Marcos L P Tse
- Departamento de Produção Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista/UNESP, Fazenda Experimental Lageado, Rua Dr. José Barbosa de Barros, 1780, 18610-307 Botucatu, SP, Brazil
| | - DÊnis R A Ramos
- Departamento de Produção Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista/UNESP, Fazenda Experimental Lageado, Rua Dr. José Barbosa de Barros, 1780, 18610-307 Botucatu, SP, Brazil
| | - Mayra A D Saleh
- Centro de Biotecnologia e Química Fina/CBQF, Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua de Diogo Botelho, 1327, Código Postal 4169-005 Porto, Portugal
| | - Gabriela M Miassi
- Departamento de Produção Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista/UNESP, Fazenda Experimental Lageado, Rua Dr. José Barbosa de Barros, 1780, 18610-307 Botucatu, SP, Brazil
| | - Ricardo S Yamatogi
- Departamento de Medicina Veterinária, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, s/n, 36570-900 Viçosa, MG, Brazil
| | - Dirlei A Berto
- Departamento de Produção Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista/UNESP, Fazenda Experimental Lageado, Rua Dr. José Barbosa de Barros, 1780, 18610-307 Botucatu, SP, Brazil
| | - Messias A Trindade Neto
- Departamento de Zootecnia, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo/USP, Av. Duque de Caxias Norte, 225, 13635-900 Pirassununga, SP, Brazil
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Perricone V, Comi M, Bontempo V, Lecchi C, Ceciliani F, Crestani M, Ferrari A, Savoini G, Agazzi A. Effects of nucleotides administration on growth performance and immune response of post-weaning piglets. ITALIAN JOURNAL OF ANIMAL SCIENCE 2020. [DOI: 10.1080/1828051x.2020.1738966] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Vera Perricone
- Dipartimento di Scienze Veterinarie per la Salute, la Produzione Animale e la Sicurezza Alimentare (VESPA), University of Milan, Milano, Italy
| | - Marcello Comi
- Dipartimento di Scienze Veterinarie per la Salute, la Produzione Animale e la Sicurezza Alimentare (VESPA), University of Milan, Milano, Italy
| | - Valentino Bontempo
- Dipartimento di Scienze Veterinarie per la Salute, la Produzione Animale e la Sicurezza Alimentare (VESPA), University of Milan, Milano, Italy
| | - Cristina Lecchi
- Dipartimento di Medicina Veterinaria (DIMEVET), University of Milan, Milano, Italy
| | - Fabrizio Ceciliani
- Dipartimento di Medicina Veterinaria (DIMEVET), University of Milan, Milano, Italy
| | - Maurizio Crestani
- Dipartimento di Scienze Farmacologiche e Biomolecolari, University of Milan, Milano, Italy
| | - Alessandra Ferrari
- Dipartimento di Scienze Farmacologiche e Biomolecolari, University of Milan, Milano, Italy
| | - Giovanni Savoini
- Dipartimento di Scienze Veterinarie per la Salute, la Produzione Animale e la Sicurezza Alimentare (VESPA), University of Milan, Milano, Italy
| | - Alessandro Agazzi
- Dipartimento di Scienze Veterinarie per la Salute, la Produzione Animale e la Sicurezza Alimentare (VESPA), University of Milan, Milano, Italy
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Wang Z, Hu J, Zheng W, Yang T, Wang X, Xie C, Yan X. Lactobacillus frumenti mediates energy production via fatty acid β-oxidation in the liver of early-weaned piglets. J Anim Sci Biotechnol 2019; 10:95. [PMID: 31827788 PMCID: PMC6894312 DOI: 10.1186/s40104-019-0399-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 10/14/2019] [Indexed: 11/18/2022] Open
Abstract
Background Early-weaning of piglets is often accompanied by severe disorders, especially diarrhea. The gut microbiota and its metabolites play a critical role in the maintenance of the physiologic and metabolic homeostasis of the host. Our previous studies have demonstrated that oral administration of Lactobacillus frumenti improves epithelial barrier functions and confers diarrhea resistance in early-weaned piglets. However, the metabolic response to L. frumenti administration remains unclear. Then, we conducted simultaneous serum and hepatic metabolomic analyses in early-weaned piglets administered by L. frumenti or phosphate-buffered saline (PBS). Results A total of 100 6-day-old crossbred piglets (Landrace × Yorkshire) were randomly divided into two groups and piglets received PBS (sterile, 2 mL) or L. frumenti (suspension in PBS, 108 CFU/mL, 2 mL) by oral administration once per day from 6 to 20 days of age. Piglets were weaned at 21 days of age. Serum and liver samples for metabolomic analyses were collected at 26 days of age. Principal components analysis (PCA) showed that L. frumenti altered metabolism in serum and liver. Numerous correlations (P < 0.05) were identified among the serum and liver metabolites that were affected by L. frumenti. Concentrations of guanosine monophosphate (GMP), inosine monophosphate (IMP), and uric acid were higher in serum of L. frumenti administration piglets. Pathway analysis indicated that L. frumenti regulated fatty acid and amino acid metabolism in serum and liver. Concentrations of fatty acid β-oxidation related metabolites in serum (such as 3-hydroxybutyrylcarnitine, C4-OH) and liver (such as acetylcarnitine) were increased after L. frumenti administration. Conclusions Our findings suggest that L. frumenti regulates lipid metabolism and amino acid metabolism in the liver of early-weaned piglets, where it promotes fatty acid β-oxidation and energy production. High serum concentrations of nucleotide intermediates, which may be an alternative strategy to reduce the incidence of diarrhea in early-weaned piglets, were further detected. These findings broaden our understanding of the relationships between the gut microbiota and nutrient metabolism in the early-weaned piglets.
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Affiliation(s)
- Zhichang Wang
- 1State Key Laboratory of Agricultural Microbiology, College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070 China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070 China.,Hubei Provincial Engineering Laboratory for Pig Precision Feeding and Feed Safety Technology, Wuhan, Hubei 430070 China
| | - Jun Hu
- 1State Key Laboratory of Agricultural Microbiology, College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070 China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070 China.,Hubei Provincial Engineering Laboratory for Pig Precision Feeding and Feed Safety Technology, Wuhan, Hubei 430070 China
| | - Wenyong Zheng
- 1State Key Laboratory of Agricultural Microbiology, College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070 China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070 China.,Hubei Provincial Engineering Laboratory for Pig Precision Feeding and Feed Safety Technology, Wuhan, Hubei 430070 China
| | - Tao Yang
- 1State Key Laboratory of Agricultural Microbiology, College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070 China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070 China.,Hubei Provincial Engineering Laboratory for Pig Precision Feeding and Feed Safety Technology, Wuhan, Hubei 430070 China
| | - Xinkai Wang
- 1State Key Laboratory of Agricultural Microbiology, College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070 China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070 China.,Hubei Provincial Engineering Laboratory for Pig Precision Feeding and Feed Safety Technology, Wuhan, Hubei 430070 China
| | - Chunlin Xie
- 1State Key Laboratory of Agricultural Microbiology, College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070 China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070 China.,Hubei Provincial Engineering Laboratory for Pig Precision Feeding and Feed Safety Technology, Wuhan, Hubei 430070 China
| | - Xianghua Yan
- 1State Key Laboratory of Agricultural Microbiology, College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070 China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070 China.,Hubei Provincial Engineering Laboratory for Pig Precision Feeding and Feed Safety Technology, Wuhan, Hubei 430070 China
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12
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Jiao Y, Upadhaya S, Kim I. Effects of nucleotide supplementation to corn–soybean meal-based diet on growth performance, fecal microflora, and blood profiles of sows and performance of suckling piglets. CANADIAN JOURNAL OF ANIMAL SCIENCE 2019. [DOI: 10.1139/cjas-2018-0222] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A total of 45 sows (Landrace × Yorkshire) and their litters were used in this study to evaluate the efficacy of nucleotide supplementation on reproductive performance, growth performance, fecal microflora, and blood profiles in sows and piglets. Sows were allocated to one of three treatments (15 pigs per treatment and the average parity was 4.13). Dietary treatments consisted of (1) CON: basal diet, (2) T1: CON + 0.5% nucleotides, and (3) T2: CON + 1.0% nucleotides. In this study, the average daily feed intake during lactation and back fat at weaning day was increased linearly (P < 0.05) in sows with the increase in nucleotide supplementation levels. Sows receiving increasing levels of nucleotides had linearly increased fecal Lactobacillus counts and decreased Escherichia coli counts at weaning day (P < 0.05). Linear reduction of the epinephrine, norepinephrine, and cortisol in sows was observed at weaning day, whereas superoxide dismutase was increased linearly (P < 0.05). Body weight and average daily gain in piglets were linearly (P < 0.05) increased with the increasing levels of nucleotides. Linear increase (P < 0.05) was also observed on total piglets born, live piglets, and piglet survival. The current study demonstrated the importance of nucleotides in the diets of sows to improve sow and piglet performance.
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Affiliation(s)
- Y. Jiao
- Department of Animal Resource and Science, Dankook University, Cheonan, Choongnam 330-714, South Korea
- Department of Animal Resource and Science, Dankook University, Cheonan, Choongnam 330-714, South Korea
| | - S.D. Upadhaya
- Department of Animal Resource and Science, Dankook University, Cheonan, Choongnam 330-714, South Korea
- Department of Animal Resource and Science, Dankook University, Cheonan, Choongnam 330-714, South Korea
| | - I.H. Kim
- Department of Animal Resource and Science, Dankook University, Cheonan, Choongnam 330-714, South Korea
- Department of Animal Resource and Science, Dankook University, Cheonan, Choongnam 330-714, South Korea
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13
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Wang T, Huang Y, Yao W, He Q, Shao Y, Li H, Li Y, Huang F. Effect of conditioning temperature on pelleting characteristics, nutrient digestibility and gut microbiota of sorghum-based diets for growing pigs. Anim Feed Sci Technol 2019. [DOI: 10.1016/j.anifeedsci.2019.114227] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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14
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Jiao Y, Kim IH. Effects of nucleotide supplementation on growth performance, nutrient digestibility, and immune blood profiles related to foot-and-mouth disease in vaccinated growing pigs. CANADIAN JOURNAL OF ANIMAL SCIENCE 2019. [DOI: 10.1139/cjas-2018-0087] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A 6 wk trial was conducted to evaluate the effects of nucleotide supplementation in improving performance, nutrient digestibility, and immune blood profiles so as to reduce foot-and-mouth disease (FMD) vaccine stress in growing pigs. A total of 120 growing pigs [(Yorkshire × Landrace) × Duroc] with an average body weight (BW) of 25.76 ± 1.83 kg were used. Pigs were allocated to one of three treatments (eight pens per treatment; three barrows and two gilts per pen) based on BW and sex. Pigs were injected with FMD vaccine at 84 d of age (2 wk after experiment started). Dietary treatments consisted of (1) CON: corn–soybean-meal-based diet, (2) NUC1: CON + 0.5% nucleotide, and (3) NUC2: CON + 1.0% nucleotide. In the current study, the growth performance of gain:feed ratio (G:F), the apparent total tract digestibility of dry matter and nitrogen was linearly (P < 0.05) increased with the increasing level of nucleotide. After injection, the concentration of cortisol and epinephrine was decreased (P < 0.05) linearly in nucleotide treatments. In conclusion, nucleotide supplementation to FMD vaccinated pigs showed positive effects on improving performance, immune system health, and reducing vaccine stress in growing pigs.
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Affiliation(s)
- Yang Jiao
- Department of Animal Resource & Science, Dankook University, #29 Anseodong, Cheonan, Choognam 330-714, Korea
- Department of Animal Resource & Science, Dankook University, #29 Anseodong, Cheonan, Choognam 330-714, Korea
| | - In Ho Kim
- Department of Animal Resource & Science, Dankook University, #29 Anseodong, Cheonan, Choognam 330-714, Korea
- Department of Animal Resource & Science, Dankook University, #29 Anseodong, Cheonan, Choognam 330-714, Korea
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15
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Leung H, Yitbarek A, Snyder R, Patterson R, Barta JR, Karrow N, Kiarie E. Responses of broiler chickens to Eimeria challenge when fed a nucleotide-rich yeast extract. Poult Sci 2019; 98:1622-1633. [PMID: 30481335 PMCID: PMC6414034 DOI: 10.3382/ps/pey533] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 10/30/2018] [Indexed: 01/03/2023] Open
Abstract
Nucleotide-rich yeast extract (YN) was investigated for effects on growth performance, jejunal physiology, and cecal microbial activity in Eimeria-challenged broiler chickens. A total of 360-day-old male chicks (Ross × Ross 708) were placed on floor pens and provided a corn-soybean meal-based diet without or with YN (500 g/MT; n = 12). On d 10, 6 replicates per diet were orally administered with 1 mL of E. acervulina and E. maxima sporulated oocysts and the rest (non-challenged control) were administered with 1 mL of distilled water. On d 15, 5 birds/pen were then necropsied for intestinal lesion scores, histomorphology and cecal digesta pH, short chain fatty acids (SCFA), and microbial community using Illumina Miseq platform. Supplemental YN improved (P = 0.01) Feed conversion ratio (FCR) during the prechallenge phase (d 0 to 10). In the postchallenge period (d 11 to 15), Eimeria depressed (P < 0.05) Body weight gain (BWG) relative to non-challenged birds, whereas YN-fed birds had a higher (P = 0.05) BWG compared to that of non-YN-fed birds. There was an interaction between YN and Eimeria on jejunal villi height (VH) (P = 0.001) and expression of cationic amino acid transporter 1(CAT1) (P = 0.04). Specifically, in the absence of Eimeria, YN-fed birds had a shorter VH (892 vs. 1,020 μm) relative to that of control but longer VH (533 vs. 447 μm) in the presence of Eimeria. With respect to CAT1, YN-fed birds had a higher (1.65 vs. 0.78) expression when subjected to Eimeria than when not challenged. Independently, Eimeria decreased (P < 0.01) the jejunal expression of maltase, Na glucose transporter 1 and occludin genes, ceca digesta abundance of genus Clostridium cluster XlVa and Oscillibacter but increased (P < 0.01) jejunal proliferating cell nuclear antigen and interleukin 10. Interaction between YN and Eimeria was observed for ceca digesta pH (P = 0.04) and total SCFA (P = 0.01) such that YN increased SCFA in the absence of Eimeria but reduced SCFA and increased pH in the presence of Eimeria. In summary, Eimeria impaired performance and gut function and shifted gut microbiome; YN improved performance independently, attenuated Eimeria damage on indices of gut function, and modulated cecal microbiome.
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Affiliation(s)
- H Leung
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - A Yitbarek
- Department of Pathobiology, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - R Snyder
- Department of Pathobiology, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - R Patterson
- Canadian Bio-Systems Inc., Calgary, AL T2C 0J7, Canada
| | - J R Barta
- Department of Pathobiology, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - N Karrow
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - E Kiarie
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
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16
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Wu C, Yang Z, Song C, Liang C, Li H, Chen W, Lin W, Xie Q. Effects of dietary yeast nucleotides supplementation on intestinal barrier function, intestinal microbiota, and humoral immunity in specific pathogen-free chickens. Poult Sci 2018; 97:3837-3846. [PMID: 29945221 DOI: 10.3382/ps/pey268] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Accepted: 05/29/2018] [Indexed: 01/25/2023] Open
Abstract
Yeast nucleotides are a fine functional additive in human and animals. The effects of dietary yeast nucleotides supplementation on intestinal development, expression of intestinal barrier-related genes, intestinal microbiota, and infectious bronchitis virus (IBV) antibody titer of specific pathogen-free (SPF) chickens were investigated. A total of 60 1-d-old chickens were divided into 4 groups, each of which included 3 replicates of 5 chickens. Group 1 served as a control that was fed a basal diet. Groups 2 to 4 were fed the basal diet supplemented with 0.1%, 0.3% and 0.5% yeast nucleotides, respectively. All chickens were inoculated intranasally with inactivated IBV vaccine at day 1 and day 10. At day 17, the intestinal development, expression of intestinal barrier-related genes and microbiota were evaluated. There was a significant increased ileal villus height and villus height to crypt depth ratio in group 2 (P < 0.05). Moreover, group 4 exhibited higher expression of zonula occludens-1 (ZO-1) and Occludin gene in ileum (P < 0.05), whereas groups 2 and 3 exhibited higher expression of Mucin 2 (MUC2) and trefoil factor 2 (TFF2) gene (P < 0.05), group 2 showed lower expression of IFN-α gene (P < 0.05). Dietary yeast nucleotides increased intestinal bacterial diversity (P < 0.05), and the abundance of Lactobacillus (P < 0.05). At day 10, 17, 24, 31, 38, and 45, the serum IBV antibody titers were tested. Group 2 exhibited higher IBV antibody titer at day 17 (P < 0.05), furthermore, groups 2 to 4 reached the effective levels 1 wk earlier than control group. In conclusion, dietary yeast nucleotides supplementation can help birds to mount a faster and stronger antibody response to IBV vaccine. In addition, dietary yeast nucleotides supplementation can also promote the intestinal development and barrier-related genes expression, and diversity and richness of intestinal microbiota.
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Affiliation(s)
- Che Wu
- College of Animal Science, South China Agricultural University & Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, Guangzhou 510642, PR China.,Key Laboratory of Animal Health Aquaculture and Environmental Control, Guangzhou 510642, PR China
| | - Zhenwei Yang
- College of Animal Science, South China Agricultural University & Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, Guangzhou 510642, PR China
| | - Cailiang Song
- College of Animal Science, South China Agricultural University & Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, Guangzhou 510642, PR China
| | - Chao Liang
- Guangdong Hinabiotech, Co., Ltd, Guangzhou 510642, PR China
| | - Hongxin Li
- College of Animal Science, South China Agricultural University & Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, Guangzhou 510642, PR China
| | - Weiguo Chen
- College of Animal Science, South China Agricultural University & Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, Guangzhou 510642, PR China
| | - Wencheng Lin
- College of Animal Science, South China Agricultural University & Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, Guangzhou 510642, PR China.,Key Laboratory of Animal Health Aquaculture and Environmental Control, Guangzhou 510642, PR China
| | - Qingmei Xie
- College of Animal Science, South China Agricultural University & Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, Guangzhou 510642, PR China.,Key Laboratory of Animal Health Aquaculture and Environmental Control, Guangzhou 510642, PR China
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17
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Yan J, Liu P, Xu L, Huan H, Zhou W, Xu X, Shi Z. Effects of exogenous inosine monophosphate on growth performance, flavor compounds, enzyme activity, and gene expression of muscle tissues in chicken. Poult Sci 2018; 97:1229-1237. [PMID: 29361047 DOI: 10.3382/ps/pex415] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 12/01/2017] [Indexed: 12/25/2022] Open
Abstract
The goal of this experiment was to examine effects of diets supplemented with exogenous inosine monophosphate (IMP) on the growth performance, flavor compounds, enzyme activity and gene expression of chicken. A total of 1,500 healthy, 1-day-old male 3-yellow chickens were used for a 52-d experimental period. Individuals were randomly divided into 5 groups (group I, II, III, IV, V) with 6 replicates per group, and fed a basal diet supplemented with 0.0, 0.05, 0.1, 0.2, and 0.3% IMP, respectively. There was no significant response to the increasing dietary IMP level in average daily feed intake (ADFI), average daily gain (ADG), and feed:gain ratio (F/G) (P ≥ 0.05). IMP content of the breast and thigh muscle showed an exponential and linear response to the increasing dietary IMP level (P < 0.05), the highest IMP content was obtained when the diet with 0.3% and 0.2% exogenous IMP was fed. There were significant effects of IMP level in diet on free amino acids (FAA) (exponential, linear and quadratic effect, P < 0.05) and delicious amino acids (DAA) (quadratic effect, P < 0.01) content in breast muscle. FAA and DAA content in thigh muscle showed an exponential and linear response (P < 0.05), and quadratic response (P < 0.01) to the increasing dietary IMP level, the highest FAA and DAA content was obtained when the diet with 0.2% exogenous IMP was fed. Dietary IMP supplementation had a quadratic effect on 5΄-NT and the alkaline phosphatase (ALP) enzyme activity in the breast muscle (P < 0.05), and the adenosine triphosphate (ATP) enzyme activity in the thigh muscles increased exponentially and linearly with increasing IMP level in diet (exponential effect, P = 0.061; linear effect, P = 0.059). Cyclohydrolase (ATIC) gene expression in thigh muscle had a quadratic response to the increasing dietary IMP level (P < 0.05), 0.2% exogenous IMP group had the highest (AMPD1) gene expression of the breast muscle and ATIC gene expression of the thigh muscle. These results indicate that dietary IMP did not affect the growth performance of chicken, the diet with 0.2 to 0.3% exogenous IMP is optimal to improve the meat flavor quality in chicken.
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Affiliation(s)
- Junshu Yan
- Laboratory of Animal Improvement and Reproduction, Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanging, 210014 China
| | - Peifeng Liu
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin, 150030 China
| | - Liangmei Xu
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin, 150030 China
| | - Hailin Huan
- Laboratory of Animal Improvement and Reproduction, Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanging, 210014 China
| | - Weiren Zhou
- Laboratory of Animal Improvement and Reproduction, Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanging, 210014 China
| | - Xiaoming Xu
- Laboratory of Animal Improvement and Reproduction, Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanging, 210014 China
| | - Zhendan Shi
- Laboratory of Animal Improvement and Reproduction, Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanging, 210014 China
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18
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Liu Y, Espinosa CD, Abelilla JJ, Casas GA, Lagos LV, Lee SA, Kwon WB, Mathai JK, Navarro DM, Jaworski NW, Stein HH. Non-antibiotic feed additives in diets for pigs: A review. ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2018; 4:113-125. [PMID: 30140751 PMCID: PMC6103469 DOI: 10.1016/j.aninu.2018.01.007] [Citation(s) in RCA: 165] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 12/14/2017] [Accepted: 01/17/2018] [Indexed: 01/08/2023]
Abstract
A number of feed additives are marketed to assist in boosting the pigs' immune system, regulate gut microbiota, and reduce negative impacts of weaning and other environmental challenges. The most commonly used feed additives include acidifiers, zinc and copper, prebiotics, direct-fed microbials, yeast products, nucleotides, and plant extracts. Inclusion of pharmacological levels of zinc and copper, certain acidifiers, and several plant extracts have been reported to result in improved pig performance or improved immune function of pigs. It is also possible that use of prebiotics, direct-fed microbials, yeast, and nucleotides may have positive impacts on pig performance, but results have been less consistent and there is a need for more research in this area.
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Affiliation(s)
- Yanhong Liu
- Department of Animal Science, University of California, Davis, CA 95817, USA
| | | | | | - Gloria A. Casas
- Department of Animal Sciences, University of Illinois, Urbana, IL 61801, USA
- Department of Animal Production, College of Animal and Veterinary Sciences, University of Colombia, Bogota 111321, Colombia
| | - L. Vanessa Lagos
- Department of Animal Sciences, University of Illinois, Urbana, IL 61801, USA
| | - Su A. Lee
- Department of Animal Sciences, University of Illinois, Urbana, IL 61801, USA
| | - Woong B. Kwon
- Department of Animal Sciences, University of Illinois, Urbana, IL 61801, USA
| | - John K. Mathai
- Department of Animal Sciences, University of Illinois, Urbana, IL 61801, USA
| | | | | | - Hans H. Stein
- Department of Animal Sciences, University of Illinois, Urbana, IL 61801, USA
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19
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Nucleotide-mediated SPDEF modulates TFF3-mediated wound healing and intestinal barrier function during the weaning process. Sci Rep 2018; 8:4827. [PMID: 29555969 PMCID: PMC5859294 DOI: 10.1038/s41598-018-23218-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 03/07/2018] [Indexed: 12/14/2022] Open
Abstract
Most alterations during weaning involve physiological changes in intestinal structure and function. Here, we evaluated the molecular mechanisms regulating the effects of nucleotides on weaning. Nucleotide treatment induced Trefoil factor 3 (TFF3) expression and IPEC-J2 cell growth and reduced wound width. Treatment with nucleosides and TFF3 in lipopolysaccharide-challenged IPEC-J2 cells increased intestinal transepithelial electrical resistance and decreased intestinal permeability. Additionally, nucleosides improved intestinal barrier function through induction of TFF3-mediated phosphatidylinositol 3-kinase/Akt, extracellular signal-regulated kinase 1/2, p38, and Janus kinase/signal transducer and activator of transcription signaling pathways. Among selected differentially expressed genes, SAM pointed domain containing ETS transcription factor (SPDEF) expression was elevated by nucleotides in a concentration-dependent manner. Moreover, SPDEF directly regulated TFF3 expression via binding to the promoter. In vivo, nucleotide supplementation improved growth performance, serum stress levels, and intestinal morphology. Our findings provide insights into the molecular mechanisms of intestinal development during weaning in pigs.
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20
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Effects of pyrimidine nucleosides on growth performance, gut morphology, digestive enzymes, serum biochemical indices and immune response in broiler chickens. Livest Sci 2017. [DOI: 10.1016/j.livsci.2017.08.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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21
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Assoni AD, Amorim AB, Saleh MA, Tse ML, Berto DA. Dietary glutamine, glutamic acid and nucleotide supplementation accelerate carbon turnover (δ 13C) on stomach of weaned piglets. ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2017; 3:225-231. [PMID: 29767157 PMCID: PMC5941190 DOI: 10.1016/j.aninu.2017.04.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 04/07/2017] [Accepted: 04/13/2017] [Indexed: 12/15/2022]
Abstract
The use of stable isotope analysis as a tool for characterization of carbon turnover (δ13C) in piglet's tissues by tracing its feeding system has drawn attention. Thus, this study aimed at evaluating the influence of dietary glutamine, glutamic acid and nucleotides supplementation on carbon turnover in fundic-stomach region of weaned piglets at an average age of 21 days. The diets consisted of additive-free diet - control (C); 1% glutamine (G); 1% glutamic acid (GA) and 1% nucleotides (Nu). At weaning day (day 0: baseline), 3 piglets were slaughtered to quantify the δ13C of stomach. The remaining 120 piglets were blocked by weight and sex, randomly assigned to pens with 3 piglets slaughtered per treatment at days 1, 2, 4, 5, 7, 9, 13, 20, 27 and 49 after weaning in order to verify the fundic-stomach isotopic composition by treatments. Samples were analyzed in terms of 13C/12C ratio by mass spectrometry and converted to relative isotopic enrichment values (δ13C ‰) used to plot the first order exponential curves over time using OriginPro 8.0 software. The inclusion of glutamine, glutamate and nucleotides in piglet's diets has accelerated the carbon turnover in stomach during the post-weaning period, demonstrating also that glutamate has guaranteed fastest 13C incorporation rate on fundic-stomach region and pH-lowering. Besides that, stable isotopes technique (δ13C) has proved to be an important methodology to determine the time-scales at which piglets shift among diets with different isotopic values, characterizing the trophic effects of additives and the phenotypic flexibility of stomach.
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Affiliation(s)
- Amanda D. Assoni
- Department of Animal Production, UNESP – São Paulo State University, Lageado Experimental Farm, Botucatu 18610-307, São Paulo, Brazil
| | - Alessandro B. Amorim
- Institute of Agricultural Sciences and Technologies, Federal University of Mato Grosso, Rondonópolis 78735-902, Mato Grosso, Brazil
| | - Mayra A.D. Saleh
- Department of Animal Production, UNESP – São Paulo State University, Lageado Experimental Farm, Botucatu 18610-307, São Paulo, Brazil
| | - Marcos L.P. Tse
- Department of Animal Production, UNESP – São Paulo State University, Lageado Experimental Farm, Botucatu 18610-307, São Paulo, Brazil
| | - Dirlei A. Berto
- Department of Animal Production, UNESP – São Paulo State University, Lageado Experimental Farm, Botucatu 18610-307, São Paulo, Brazil
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22
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Abstract
Infants born with low birth weights (<2500 g, LBW), accounting for about 15 % of newborns, have a high risk for postnatal growth failure and developing the metabolic syndromes such as type 2 diabetes, CVD and obesity later in life. Improper nutrition provision during critical stages, such as undernutrition during the fetal period or overnutrition during the neonatal period, has been an important mediator of these metabolic diseases. Considering the specific physiological status of LBW infants, nutritional intervention and optimisation during early life merit further attention. In this review, the physiological and metabolic defects of LBW infants were summarised from a nutritional perspective. Available strategies for nutritional interventions and optimisation of LBW infants, including patterns of nutrition supply, macronutrient proportion, supplementation of amino acids and their derivatives, fatty acids, nucleotides, vitamins, minerals as well as hormone and microbiota manipulators, were reviewed with an aim to provide new insights into the advancements of formulas and human-milk fortifiers.
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23
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Daneshmand A, Kermanshahi H, Danesh Mesgaran M, King AJ, Ibrahim SA. Effect of purine nucleosides on growth performance, gut morphology, digestive enzymes, serum profile and immune response in broiler chickens. Br Poult Sci 2017; 58:536-543. [DOI: 10.1080/00071668.2017.1335859] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- A. Daneshmand
- Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
- Department of Animal Science, University of California, Davis, CA, USA
| | - Hassan Kermanshahi
- Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
| | - M. Danesh Mesgaran
- Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
| | - A. J. King
- Department of Animal Science, University of California, Davis, CA, USA
| | - S. A. Ibrahim
- Food and Nutritional Science Program, North Carolina A&T State University, Greensboro, NC, USA
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24
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Combination of purine and pyrimidine nucleosides influences growth performance, gut morphology, digestive enzymes, serum biochemical indices and immune functions in broiler chickens. Anim Feed Sci Technol 2017. [DOI: 10.1016/j.anifeedsci.2017.04.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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25
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Li B, Zhou H, Wu X, Chen Z, Yao J, Yin Y. Effects of dietary supplementation with uridine monophosphate on performance and intestinal morphology of weanling piglets1. J Anim Sci 2016. [DOI: 10.2527/jas.2015-9440] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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26
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Che L, Hu L, Liu Y, Yan C, Peng X, Xu Q, Wang R, Cheng Y, Chen H, Fang Z, Lin Y, Xu S, Feng B, Chen D, Wu D. Dietary Nucleotides Supplementation Improves the Intestinal Development and Immune Function of Neonates with Intra-Uterine Growth Restriction in a Pig Model. PLoS One 2016; 11:e0157314. [PMID: 27304828 PMCID: PMC4909294 DOI: 10.1371/journal.pone.0157314] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 05/29/2016] [Indexed: 01/21/2023] Open
Abstract
The current study aimed to determine whether dietary nucleotides supplementation could improve growth performance, intestinal development and immune function of intra-uterine growth restricted (IUGR) neonate using pig as animal model. A total of 14 pairs of normal birth weight (NBW) and IUGR piglets (7 days old) were randomly assigned to receive a milk-based control diet (CON diet) or diet supplemented with nucleotides (NT diet) for a period of 21 days. Blood samples, intestinal tissues and digesta were collected at necropsy and analyzed for morphology, digestive enzyme activities, microbial populations, peripheral immune cells, expression of intestinal innate immunity and barrier-related genes and proteins. Compared with NBW piglets, IUGR piglets had significantly lower average daily dry matter intake and body weight gain (P<0.05). Moreover, IUGR markedly decreased the villous height and villi: crypt ratio in duodenum (P<0.05), as well as the maltase activity in jejunum (P<0.05). In addition, IUGR significantly decreased the serum concentrations of IgA, IL-1βand IL-10 (P<0.05), as well as the percentage of peripheral lymphocytes (P<0.05). Meanwhile, the down-regulation of innate immunity-related genes such as TOLLIP (P<0.05), TLR-9 (P = 0.08) and TLR-2 (P = 0.07) was observed in the ileum of IUGR relative to NBW piglets. Regardless of birth weight, however, feeding NT diet markedly decreased (P<0.05) feed conversion ratio, increased the villous height in duodenum (P<0.05), activities of lactase and maltase in jejunum (P<0.05), count of peripheral leukocytes (P<0.05), serum concentrations of IgA and IL-1β as well as gene expressions of TLR-9, TLR-4 and TOLLIP in ileum (P<0.05). In addition, expressions of tight junction proteins (Claudin-1 and ZO-1) in ileum were markedly increased by feeding NT diet relative to CON diet (P<0.05). These results indicated that IUGR impaired growth performance, intestinal and immune function, but dietary nucleotides supplementation improved nutrients utilization, intestinal function and immunity.
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Affiliation(s)
- Lianqiang Che
- Institute of Animal Nutrition,Sichuan Agricultural University, No. 211, Huimin Road, Wenjiang District, Chengdu, Sichuan, 611130, People’s Republic of China
- * E-mail:
| | - Liang Hu
- Institute of Animal Nutrition,Sichuan Agricultural University, No. 211, Huimin Road, Wenjiang District, Chengdu, Sichuan, 611130, People’s Republic of China
| | - Yan Liu
- Institute of Animal Nutrition,Sichuan Agricultural University, No. 211, Huimin Road, Wenjiang District, Chengdu, Sichuan, 611130, People’s Republic of China
| | - Chuan Yan
- Institute of Animal Nutrition,Sichuan Agricultural University, No. 211, Huimin Road, Wenjiang District, Chengdu, Sichuan, 611130, People’s Republic of China
| | - Xie Peng
- Institute of Animal Nutrition,Sichuan Agricultural University, No. 211, Huimin Road, Wenjiang District, Chengdu, Sichuan, 611130, People’s Republic of China
| | - Qin Xu
- Institute of Animal Nutrition,Sichuan Agricultural University, No. 211, Huimin Road, Wenjiang District, Chengdu, Sichuan, 611130, People’s Republic of China
| | - Ru Wang
- Institute of Animal Nutrition,Sichuan Agricultural University, No. 211, Huimin Road, Wenjiang District, Chengdu, Sichuan, 611130, People’s Republic of China
| | - Yuanfang Cheng
- Institute of Animal Nutrition,Sichuan Agricultural University, No. 211, Huimin Road, Wenjiang District, Chengdu, Sichuan, 611130, People’s Republic of China
- Institute of livestock nutrition, Tongwei group Co., Ltd., No. 588, Tianfu Road, Gaoxin District, Chengdu, Sichuan, 610041, People’s Republic of China
| | - Hong Chen
- College of Food Science, Sichuan Agricultural University, No. 211, Huimin Road, Wenjiang District, Chengdu, Sichuan, 611130, People’s Republic of China
| | - Zhengfeng Fang
- Institute of Animal Nutrition,Sichuan Agricultural University, No. 211, Huimin Road, Wenjiang District, Chengdu, Sichuan, 611130, People’s Republic of China
| | - Yan Lin
- Institute of Animal Nutrition,Sichuan Agricultural University, No. 211, Huimin Road, Wenjiang District, Chengdu, Sichuan, 611130, People’s Republic of China
| | - Shengyu Xu
- Institute of Animal Nutrition,Sichuan Agricultural University, No. 211, Huimin Road, Wenjiang District, Chengdu, Sichuan, 611130, People’s Republic of China
| | - Bin Feng
- Institute of Animal Nutrition,Sichuan Agricultural University, No. 211, Huimin Road, Wenjiang District, Chengdu, Sichuan, 611130, People’s Republic of China
| | - Daiwen Chen
- Institute of Animal Nutrition,Sichuan Agricultural University, No. 211, Huimin Road, Wenjiang District, Chengdu, Sichuan, 611130, People’s Republic of China
| | - De Wu
- Institute of Animal Nutrition,Sichuan Agricultural University, No. 211, Huimin Road, Wenjiang District, Chengdu, Sichuan, 611130, People’s Republic of China
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Amorim AB, Berto DA, Saleh MAD, Telles FG, Denadai JC, Sartori MMP, Luiggi FG, Santos LS, Ducatti C. Effect of Glutamine, Glutamic Acid and Nucleotides on the Turnover of Carbon (δ(13)C) in Organs of Weaned Piglets. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2015; 29:1152-8. [PMID: 26954179 PMCID: PMC4932569 DOI: 10.5713/ajas.15.0132] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Revised: 04/02/2015] [Accepted: 08/24/2015] [Indexed: 11/27/2022]
Abstract
Morphological and physiological alterations occur in the digestive system of weanling piglets, compromising the performance in subsequent phases. This experiment aimed at verifying the influence of glutamine, glutamate and nucleotides on the carbon turnover in the pancreas and liver of piglets weaned at 21 days of age. Four diets were evaluated: glutamine, glutamic acid or nucleotides-free diet (CD); containing 1% glutamine (GD); containing 1% glutamic acid (GAD) and containing 1% nucleotides (ND). One hundred and twenty-three piglets were utilized with three pigs slaughtered at day zero (weaning day) and three at each one of the experimental days (1, 2, 4, 5, 7, 9, 13, 20, 27, and 49 post-weaning), in order to collect organ samples, which were analyzed for the δ13C isotopic composition and compared by means of time. No differences were found (p>0.05) among treatments for the turnover of the 13C in the pancreas (T50% = 13.91, 14.37, 11.07, and 9.34 days; T95% = 46.22, 47.73, 36.79, and 31.04 days for CD, GD, GAD, and ND, respectively). In the liver, the ND presented accelerated values of carbon turnover (T50% = 7.36 and T95% = 24.47 days) in relation to the values obtained for the GD (T50% = 10.15 and T95% = 33.74 days). However, the values obtained for the CD (T50% = 9.12 and T95% = 30.31 days) and GAD (T50% = 7.83 and T95% = 26.03 days) had no differences (p>0.05) among other diets. The technique of 13C isotopic dilution demonstrated trophic action of nucleotides in the liver.
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Affiliation(s)
- Alessandro Borges Amorim
- Institute of Agricultural Sciences and Technologies, Federal University of Mato Grosso, Rondonópolis Campus, Mato Grosso 78735-902, Brazil
| | - Dirlei Antonio Berto
- Department of Animal Production, Faculty of Animal Science and Veterinary Medicine, São Paulo State University (UNESP), Botucatu Campus, Botucatu, São Paulo 18618-000, Brazil
| | - Mayra Anton Dib Saleh
- Department of Animal Production, Faculty of Animal Science and Veterinary Medicine, São Paulo State University (UNESP), Botucatu Campus, Botucatu, São Paulo 18618-000, Brazil
| | - Filipe Garcia Telles
- Department of Animal Production, Faculty of Animal Science and Veterinary Medicine, São Paulo State University (UNESP), Botucatu Campus, Botucatu, São Paulo 18618-000, Brazil
| | - Juliana Célia Denadai
- Department of Animal Production, Faculty of Animal Science and Veterinary Medicine, São Paulo State University (UNESP), Botucatu Campus, Botucatu, São Paulo 18618-000, Brazil
| | - Maria Márcia Pereira Sartori
- Institute of Biosciences, São Paulo State University (UNESP), Environmental Stable Isotopes Center, Botucatu, São Paulo 18618-970, Brazil
| | - Fabiana Golin Luiggi
- Department of Animal Production, Faculty of Animal Science and Veterinary Medicine, São Paulo State University (UNESP), Botucatu Campus, Botucatu, São Paulo 18618-000, Brazil
| | - Luan Sousa Santos
- Department of Animal Production, Faculty of Animal Science and Veterinary Medicine, São Paulo State University (UNESP), Botucatu Campus, Botucatu, São Paulo 18618-000, Brazil
| | - Carlos Ducatti
- Institute of Biosciences, São Paulo State University (UNESP), Environmental Stable Isotopes Center, Botucatu, São Paulo 18618-970, Brazil
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Rist VTS, Weiss E, Sauer N, Mosenthin R, Eklund M. Effect of dietary protein supply originating from soybean meal or casein on the intestinal microbiota of piglets. Anaerobe 2014; 25:72-9. [PMID: 24176945 DOI: 10.1016/j.anaerobe.2013.10.003] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Revised: 10/17/2013] [Accepted: 10/18/2013] [Indexed: 01/21/2023]
Abstract
Dietary composition is a major factor influencing the intestinal microbial ecosystem of pigs. To alleviate weaning-associated disorders, variations in dietary protein supply may beneficially affect microbial composition in the gastrointestinal tract of piglets. A total of 48 piglets, fitted with simple ileal T-cannulas, was used to examine the effect of protein supply of either highly digestible casein or less digestible, fiber-rich soybean meal (SBM) on the composition of the intestinal microbiota. Gene copies of 7 bacteria groups were determined by real-time PCR in ileal digesta and feces. Ileal counts of total eubacteria, the Bacteroides-Prevotella-Porphyromonas group, Enterobacteriaceae and Clostridium Cluster XIVa were higher (P < 0.001) in the casein-based diets. Fecal counts of all analyzed bacterial groups were higher for the SBM-based diets (P < 0.001), apart from Enterobacteriaceae (P < 0.05) which were higher in the casein-based diets. Ileal counts of lactobacilli linearly increased as the crude protein level was increased up to 335 g/kg (P < 0.01). The Bacteroides-Prevotella-Porphyromonas group linearly decreased in ileal samples (P < 0.01) and increased in fecal samples (P < 0.05) as the crude protein level in the SBM-based diet was increased. Both, protein level and protein source may affect intestinal microbial balance. Higher dietary protein levels in combination with diets low in fiber contents might stimulate proliferation of protein fermenting bacteria in piglet's large intestine. Further studies are warranted to clarify, whether this would be associated with intestinal disturbances.
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Affiliation(s)
- Vanessa T S Rist
- Institute of Animal Nutrition, University of Hohenheim, Emil-Wolff-Str. 8, 70593 Stuttgart, Germany
| | - Eva Weiss
- Institute of Animal Nutrition, University of Hohenheim, Emil-Wolff-Str. 8, 70593 Stuttgart, Germany
| | - Nadja Sauer
- Institute of Animal Nutrition, University of Hohenheim, Emil-Wolff-Str. 8, 70593 Stuttgart, Germany
| | - Rainer Mosenthin
- Institute of Animal Nutrition, University of Hohenheim, Emil-Wolff-Str. 8, 70593 Stuttgart, Germany.
| | - Meike Eklund
- Institute of Animal Nutrition, University of Hohenheim, Emil-Wolff-Str. 8, 70593 Stuttgart, Germany
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29
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Weaver AC, Kim SW. Supplemental nucleotides high in inosine 5'-monophosphate to improve the growth and health of nursery pigs. J Anim Sci 2014; 92:645-51. [PMID: 24398830 DOI: 10.2527/jas.2013-6564] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
This study was conducted to determine the ability of a supplemental nucleotide mixture high in inosine 5'-monophosphate (5'IMP) to enhance pig growth and health after weaning. Pigs (n = 120 and 7.3 ± 0.1 kg) were allotted at weaning to phase 1 diets (3.3 Mcal ME/kg, 22.4% CP, and 1.34% standardize ileal digestible [SID] Lys) supplemented with 0.0, 0.2, 0.5, or 1.0 g/kg of a nucleotide additive. After 7 d, pigs were fed phase 2 diets (3.3 Mcal ME/kg, 21.3% CP, and 1.20% SID Lys) for 21 d with the same additive levels. Growth performance was measured, blood samples were collected for analysis of immune responses and oxidative stress, and fecal scoring was completed. During phase 1, ADG, ADFI, and G:F linearly increased (P < 0.05) as dietary nucleotides increased. During phase 2, ADFI increased linearly (P < 0.05). Over the entire 28-d trial, ADG and ADFI increased linearly (P < 0.05) as nucleotide content increased. Immune responses were not altered during phase 1. At the end of phase 2, IgA showed a quadratic effect (P < 0.05) with the lowest concentrations at 0.2 and 0.5 g/kg of the nucleotide additive whereas IgM changed cubically (P < 0.05) with the lowest concentration at 0.5 g/kg. The cytokine tumor necrosis factor-α tended to decrease linearly (P = 0.093) as nucleotide content increased whereas the marker for oxidative DNA damage, 8-hydroxy-deoxyguanosine, tended to have a quadratic effect (P = 0.064) with the lowest levels of damage in pigs fed 0.5 g/kg. On d 8 after changing from the phase 1 to phase 2 diets, fecal diarrhea scores tended to be lowest (P = 0.072) when pigs were fed 0.5 g/kg of the nucleotide additive. Overall, 1.0 g/kg of the nucleotide additive provided the most benefit to the growth performance of nursery pigs. However, 0.5 g/kg of the nucleotide additive reduced immune responses and oxidative stress. In conclusion, the addition of a nucleotide mixture high in 5'IMP to the diet of young pigs may be beneficial to enhance growth performance and reduce postweaning stress.
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Affiliation(s)
- A C Weaver
- Department of Animal Science, North Carolina State University, Raleigh 27695
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