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Omar AE, El-Rahman GIA, Gouda A, Abdel-Warith AWA, Younis EM, Abdo SA, Eltanahy A, Kamal AS, Davies SJ, Amer SA. Effects of Dietary Microbial Muramidase on the Growth, Liver Histoarchitecture, Antioxidant Status, and Immunoexpression of Pro-Inflammatory Cytokines in Broiler Chickens. Animals (Basel) 2023; 13:3862. [PMID: 38136899 PMCID: PMC10740586 DOI: 10.3390/ani13243862] [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: 10/28/2023] [Revised: 12/12/2023] [Accepted: 12/13/2023] [Indexed: 12/24/2023] Open
Abstract
The impact of microbial muramidase (MMUR) addition to broiler chicken rations was evaluated through growth parameters, liver histoarchitecture, antioxidant status, biochemical analysis, and expression of pro-inflammatory cytokines for 35 days. Four hundred three-day-old chicks (97.68 ± 0.59 g) were distributed to four distinct groups with ten duplicates each (100 chicks/group) consisting of: group 1 (G1): a basal diet without MMUR (control group); G2: a basal diet + 200 mg MMUR kg-1 G3: a basal diet + 400 mg MMUR kg-1; and G4: a basal diet + 600 mg MMUR kg-1. The results showed that the final body weight and total weight gain were increased (p = 0.015) in birds fed with diets supplemented with MMUR at 600 mg kg-1. The feed conversion ratio (FCR) was improved in all treatment groups compared with the control group. Birds fed with a diet supplemented with 600 mg MMUR kg-1 showed the highest body weight gain and improved FCR. The values of thyroxin hormones and growth hormones were increased in all MMUR-supplemented groups. Dietary MMUR increased the activities of antioxidant enzymes (total antioxidant activity, catalase, and superoxide dismutase) and decreased the activity of malondialdehyde (p < 0.05). In addition, it increased the values of interleukin 1 beta and interferon-gamma compared with the control group. Furthermore, dietary MMUR increased the expression of transforming growth factor-beta immunostaining in the liver and spleen tissues. Our results show that supplementing broilers' diets with 600 mg MMUR kg-1 could enhance the chicken growth rate and improve their antioxidant, inflammatory, and anti-inflammatory responses.
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Affiliation(s)
- Anaam E. Omar
- Department of Nutrition and Clinical Nutrition, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt
| | - Ghada I. Abd El-Rahman
- Department of Clinical Pathology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt
| | - Ahmed Gouda
- Animal Production Department, Agricultural & Biological Research Division, National Research Center, Dokki, Cairo 11865, Egypt
| | | | - Elsayed M. Younis
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Samar A. Abdo
- Biochemistry Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt
| | - Azhar Eltanahy
- Department of Animal Wealth Development, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Ahmed Said Kamal
- Department of Birds and Rabbit Medicine, Faculty of Veterinary Medicine, University of Sadat City, Sadat City 32897, Egypt
| | - Simon J. Davies
- Aquaculture Nutrition Research Unit ANRU, Carna Research Station, Ryan Institute, College of Science and Engineering, University of Galway, H91V8Y1 Galway, Ireland
| | - Shimaa A. Amer
- Department of Nutrition and Clinical Nutrition, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt
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2
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Abdelazeem AS, Fayed AMA, Basyony MM, Abu Hafsa SH, Mahmoud AEM. Hematology profile, digestive enzymes, thyroid hormones, productivity, and nitrogen balance of growing male rabbits supplemented with exogenous dietary lysozyme. Anim Biotechnol 2023; 34:3637-3646. [PMID: 36905153 DOI: 10.1080/10495398.2023.2187411] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
Abstract
In a simple randomized design trial, 420 growing male V-Line rabbits were randomly distributed into four groups to investigate the impact of exogenous dietary lysozyme on some physiological and nutritional parameters of male growing rabbits supplemented with exogenous dietary lysozyme. The witness group received a basal diet without exogenous dietary lysozyme (LYZ0), while the exogenous dietary lysozyme groups received 50, 100 and 150 mg/kg of basal diet (Groups; LYZ50, LYZ100 and LYZ150), respectively. The results showed significantly increased in blood cell count, hemoglobin concentration, total white blood cell, lipase, protease, amylase, total protein, triiodothyronine and thyroxine levels, while thyroid stimulating hormone levels significantly lessened in rabbits received LYZ. The LYZ- rabbit diets improved total digestible nutrient, digestible crude protein, and digestible energy values, with the LYZ100 group outperforming the others. LYZ-treated rabbits had significantly higher nitrogen intake, digestible nitrogen, and nitrogen balance than the witness group. The lysozyme in a rabbit's diet is taking on a new role as a digestive enzyme, enhancement thyroid hormones, as well as improvement hematology, daily protein efficiency ratio, daily performance index, hot carcass, total edible parts, nutritional value, and nitrogen balance, with decreasing the daily caloric conversion ratio and total non-edible parts.
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Affiliation(s)
| | - Amal M A Fayed
- Agricultural Research Center, Animal Production Research Institute, Dokki, Giza, Egypt
| | - Mohamed M Basyony
- Agricultural Research Center, Animal Production Research Institute, Dokki, Giza, Egypt
| | - Salma H Abu Hafsa
- Livestock Research Department, City of Scientific Research and Technological Applications, Arid Lands Cultivation Research Institute, Alexandria, Egypt
| | - Amr E M Mahmoud
- Biochemistry Department, Faculty of Agriculture, Fayoum University, Fayoum, Egypt
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3
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Sindaye D, Xiao Z, Wen C, Yang K, Zhang L, Liao P, Zhang F, Xin Z, He S, Ye S, Guo D, Hang S, Zeid S, Deng B. Exploring the effects of lysozyme dietary supplementation on laying hens: performance, egg quality, and immune response. Front Vet Sci 2023; 10:1273372. [PMID: 37869488 PMCID: PMC10587570 DOI: 10.3389/fvets.2023.1273372] [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: 08/06/2023] [Accepted: 09/18/2023] [Indexed: 10/24/2023] Open
Abstract
An experiment was conducted to evaluate the dietary supplementation with lysozyme's impacts on laying performance, egg quality, biochemical analysis, body immunity, and intestinal morphology. A total of 720 Jingfen No. 1 laying hens (53 weeks old) were randomly assigned into five groups, with six replicates in each group and 24 hens per replicate. The basal diet was administered to the laying hens in the control group, and it was supplemented with 100, 200, 300, or 400 mg/kg of lysozyme (purity of 10% and an enzyme activity of 3,110 U/mg) for other groups. The preliminary observation of the laying rate lasted for 4 weeks, and the experimental period lasted for 8 weeks. The findings demonstrated that lysozyme might enhance production performance by lowering the rate of sand-shelled eggs (P < 0.05), particularly 200 and 300 mg/kg compared with the control group. Lysozyme did not show any negative effect on egg quality or the health of laying hens (P > 0.05). Lysozyme administration in the diet could improve intestinal morphology, immune efficiency, and nutritional digestibility in laying hens when compared with the control group (P < 0.05). These observations showed that lysozyme is safe to use as a feed supplement for the production of laying hens. Dietary supplementation with 200 to 300 mg/kg lysozyme should be suggested to farmers as a proper level of feed additive in laying hens breeding.
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Affiliation(s)
- Daniel Sindaye
- Maoming Branch, Guangdong Laboratory for 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, China
- Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, Laboratory of Gastrointestinal Microbiology, National Center for International Research on Animal Gut Nutrition, Nanjing Agricultural University, Nanjing, China
| | - Zaili Xiao
- Maoming Branch, Guangdong Laboratory for 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, China
| | - Chaoyu Wen
- Maoming Branch, Guangdong Laboratory for 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, China
| | - Kang Yang
- Maoming Branch, Guangdong Laboratory for 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, China
| | - Limeng Zhang
- Maoming Branch, Guangdong Laboratory for 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, China
| | - Pinfeng Liao
- Maoming Branch, Guangdong Laboratory for 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, China
| | - Fan Zhang
- Maoming Branch, Guangdong Laboratory for 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, China
| | - Zhongquan Xin
- Maoming Branch, Guangdong Laboratory for 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, China
| | - Shansong He
- Maoming Branch, Guangdong Laboratory for 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, China
| | - Shibin Ye
- Maoming Branch, Guangdong Laboratory for 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, China
| | - Dan Guo
- Maoming Branch, Guangdong Laboratory for 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, China
| | - Suqin Hang
- Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, Laboratory of Gastrointestinal Microbiology, National Center for International Research on Animal Gut Nutrition, Nanjing Agricultural University, Nanjing, China
| | - Shehata Zeid
- Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, Laboratory of Gastrointestinal Microbiology, National Center for International Research on Animal Gut Nutrition, Nanjing Agricultural University, Nanjing, China
| | - Baichuan Deng
- Maoming Branch, Guangdong Laboratory for 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, China
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4
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Dang DX, Chung YH, Kim IH. E. coli-expressed human lysozyme supplementation improves growth performance, apparent nutrient digestibility, and fecal microbiota in weaning pigs. Livest Sci 2022. [DOI: 10.1016/j.livsci.2022.105004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Patience JF, Ramirez A. Invited review: strategic adoption of antibiotic-free pork production: the importance of a holistic approach. Transl Anim Sci 2022; 6:txac063. [PMID: 35854972 PMCID: PMC9278845 DOI: 10.1093/tas/txac063] [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] [Received: 03/18/2022] [Accepted: 05/13/2022] [Indexed: 02/07/2023] Open
Abstract
The discovery of the use of antibiotics to enhance growth in the 1950s proved to be one of the most dramatic and influential in the history of animal agriculture. Antibiotics have served animal agriculture, as well as human and animal medicine, well for more than seven decades, but emerging from this tremendous success has been the phenomenon of antimicrobial resistance. Consequently, human medicine and animal agriculture are being called upon, through legislation and/or marketplace demands, to reduce or eliminate antibiotics as growth promotants and even as therapeutics. As explained in this review, adoption of antibiotic-free (ABF) pork production would represent a sea change. By identifying key areas requiring attention, the clear message of this review is that success with ABF production, also referred to as "no antibiotics ever," demands a multifaceted and multidisciplinary approach. Too frequently, the topic has been approached in a piecemeal fashion by considering only one aspect of production, such as the use of certain feed additives or the adjustment in health management. Based on the literature and on practical experience, a more holistic approach is essential. It will require the modification of diet formulations to not only provide essential nutrients and energy, but to also maximize the effectiveness of normal immunological and physiological capabilities that support good health. It must also include the selection of effective non-antibiotic feed additives along with functional ingredients that have been shown to improve the utility and architecture of the gastrointestinal tract, to improve the microbiome, and to support the immune system. This holistic approach will require refining animal management strategies, including selection for more robust genetics, greater focus on care during the particularly sensitive perinatal and post-weaning periods, and practices that minimize social and environmental stressors. A clear strategy is needed to reduce pathogen load in the barn, such as greater emphasis on hygiene and biosecurity, adoption of a strategic vaccine program and the universal adoption of all-in-all-out housing. Of course, overall health management of the herd, as well as the details of animal flows, cannot be ignored. These management areas will support the basic biology of the pig in avoiding or, where necessary, overcoming pathogen challenges without the need for antibiotics, or at least with reduced usage.
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Affiliation(s)
| | - Alejandro Ramirez
- College of Veterinary Medicine, University of Arizona, Oro Valley, AZ 85737, USA
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Abu Hafsa SH, Mahmoud AEM, Fayed AMA, Abdel-Azeem AAS. The Effect of Exogenous Lysozyme Supplementation on Growth Performance, Caecal Fermentation and Microbiota, and Blood Constituents in Growing Rabbits. Animals (Basel) 2022; 12:ani12070899. [PMID: 35405887 PMCID: PMC8996916 DOI: 10.3390/ani12070899] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 03/28/2022] [Accepted: 03/29/2022] [Indexed: 11/16/2022] Open
Abstract
The effects of exogenous lysozyme supplementation (LYZ) on growth performance, caecal fermentation and microbiota, and blood characteristics were investigated in growing rabbits. A total of 420 growing male V-Line rabbits (30 d old; weighing 528 ± 16 g) were randomly divided into four groups of 105 rabbits each, and monitored for 42 days. Experimental groups included a control group (LYZ0) fed a basal diet without LYZ supplementation, and three treated groups fed the same basal diet supplemented with LYZ at 50, 100, and 150 mg/kg diet, respectively. The results showed a quadratic improvement in the final body weight, daily growth rate, FCR, and digestibility of DM, while the digestibility of OM, CP, EE, NDF, and ADF improved linearly when LYZ supplementation was increased. The dressing percentage increased quadratically when LYZ levels were increased in the rabbit diets. In rabbits fed LYZ diets, L. acidophilus counts increased linearly (p < 0.05) and L. cellobiosus, and Enterococcus sp. counts increased quadratically, whereas E. coli counts decreased. In the LYZ-supplemented groups, the caecal pH value and NH3-N concentration declined quadratically, whereas total VFA, acetic, and butyric acids increased. Total lipids decreased linearly, whilst triglycerides and cholesterol decreased quadratically with LYZ supplementation. Total antioxidant capacity, superoxide dismutase, glutathione S-transferase, and catalase increased quadratically, while malondialdehyde decreased linearly in the LYZ-supplemented groups. In conclusion, exogenous lysozyme administration improved rabbit growth performance and antioxidant status while lowering the blood lipid profile, altering the bacterial population, and regulating caecal fermentation. Therefore, LYZ up to 150 mg/kg can be used as a potential supplement in rabbit feed.
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Affiliation(s)
- Salma H. Abu Hafsa
- Livestock Research Department, Arid Lands Cultivation Research Institute, City of Scientific Research and Technological Applications, New Borg El-Arab, Alexandria 21934, Egypt
- Correspondence: ; Tel.: +20-10-0031-3649; Fax: +20-34-593-423
| | - Amr E. M. Mahmoud
- Biochemistry Department, Faculty of Agriculture, Fayoum University, Fayoum 63514, Egypt;
| | - Amal M. A. Fayed
- Animal Production Research Institute, Agricultural Research Center, Giza 12619, Egypt;
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7
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Lokken-Toyli KL, de Steenhuijsen Piters WAA, Zangari T, Martel R, Kuipers K, Shopsin B, Loomis C, Bogaert D, Weiser JN. Decreased production of epithelial-derived antimicrobial molecules at mucosal barriers during early life. Mucosal Immunol 2021; 14:1358-1368. [PMID: 34465896 PMCID: PMC8542637 DOI: 10.1038/s41385-021-00438-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 07/12/2021] [Accepted: 08/01/2021] [Indexed: 02/04/2023]
Abstract
Young age is a risk factor for respiratory and gastrointestinal infections. Here, we compared infant and adult mice to identify age-dependent mechanisms that drive susceptibility to mucosal infections during early life. Transcriptional profiling of the upper respiratory tract (URT) epithelium revealed significant dampening of early life innate mucosal defenses. Epithelial-mediated production of the most abundant antimicrobial molecules, lysozyme, and lactoferrin, and the polymeric immunoglobulin receptor (pIgR), responsible for IgA transcytosis, was expressed in an age-dependent manner. This was attributed to delayed functional development of serous cells. Absence of epithelial-derived lysozyme and the pIgR was also observed in the small intestine during early life. Infection of infant mice with lysozyme-susceptible strains of Streptococcus pneumoniae or Staphylococcus aureus in the URT or gastrointestinal tract, respectively, demonstrated an age-dependent regulation of lysozyme enzymatic activity. Lysozyme derived from maternal milk partially compensated for the reduction in URT lysozyme activity of infant mice. Similar to our observations in mice, expression of lysozyme and the pIgR in nasopharyngeal samples collected from healthy human infants during the first year of life followed an age-dependent regulation. Thus, a global pattern of reduced antimicrobial and IgA-mediated defenses may contribute to increased susceptibility of young children to mucosal infections.
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Affiliation(s)
- Kristen L. Lokken-Toyli
- Department of Microbiology, New York University School of Medicine, New York, New York USA.,for correspondence: Kristen L. Lokken-Toyli, PhD, New York University School of Medicine, Alexandria Center for Life Sciences - West Tower, 430 East 29th Street, Room 560, New York, NY 10016, Tel: (212) 263-1080, Fax: (646) 501-4645,
| | - Wouter A. A. de Steenhuijsen Piters
- Department of Paediatric Immunology and Infectious Diseases, Wilhelmina Children’s Hospital/University Medical Center Utrecht, Lundlaan 6, 3584 EA Utrecht, the Netherlands; National Institute for Public Health and the Environment, Antonie van Leeuwenhoeklaan 9, 3721 MA Bilthoven, the Netherlands
| | - Tonia Zangari
- Department of Microbiology, New York University School of Medicine, New York, New York USA
| | - Rachel Martel
- Department of Microbiology, New York University School of Medicine, New York, New York USA
| | - Kirsten Kuipers
- Department of Microbiology, New York University School of Medicine, New York, New York USA
| | - Bo Shopsin
- Department of Microbiology, New York University School of Medicine, New York, NY 10016, USA; Division of Infectious Diseases, Department of Medicine, NYU School of Medicine, New York, NY 10016, USA
| | - Cynthia Loomis
- Department of Pathology, New York University School of Medicine, New York, New York USA
| | - Debby Bogaert
- Department of Paediatric Immunology and Infectious Diseases, Wilhelmina Children’s Hospital/University Medical Center Utrecht, Lundlaan 6, 3584 EA Utrecht, the Netherlands; National Institute for Public Health and the Environment, Antonie van Leeuwenhoeklaan 9, 3721 MA Bilthoven, the Netherlands; University of Edinburgh Centre for Inflammation Research, Queen’s Medical Research Institute, University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, UK.
| | - Jeffrey N. Weiser
- Department of Microbiology, New York University School of Medicine, New York, New York USA
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EL-Deep MH, Amber KA, Eid YZ, Aboelenin SM, Soliman MM, Sakr MS, Dawood MAO. The Influence of Chicken Egg Lysozyme or Zinc-Bacitracin Antibiotic on the Growth Performance, Antibacterial Capacity, Blood Profiles, and Antioxidative Status of Rabbits: A Comparative Study. Animals (Basel) 2021; 11:ani11061731. [PMID: 34200585 PMCID: PMC8230094 DOI: 10.3390/ani11061731] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/05/2021] [Accepted: 06/08/2021] [Indexed: 02/03/2023] Open
Abstract
Simple Summary Despite the beneficial role of antibiotics in reducing bacterial infection in rabbits, there is an indirect harmful influence on human health. Thus, replacing antibiotics with friendly alternatives is a suitable strategy to protect the performance and welfare of rabbits. This study aimed at comparing the effects of including dietary egg lysozyme and zinc bacitracin antibiotic (ZnB) on the productivity and health conditions of rabbits. The results show a marked enhancement of the growth performance, antibacterial capacity, blood health, and antioxidative status in rabbits treated with egg lysozyme compared with those treated with ZnB. Thus, using egg lysozyme is recommended to replace the usage of ZnB in rabbit production. Abstract Dietary egg lysozyme has beneficial roles in the growth performance and health conditions of animals. The study was performed using 90 multicolored rabbits in three groups (each replicate with thirty rabbits). In the control group, rabbits were fed a diet without zinc bacitracin (ZnB) or egg lysozyme, while the second and third groups were treated with ZnB and lysozyme additive at 100 mg/kg, respectively. After eight weeks, the final weight and body weight gain (BWG) of rabbits fed dietary egg lysozyme and ZnB additives were meaningfully increased (p < 0.05). Nevertheless, the feed conversion ratio (FCR) was markedly decreased by dietary egg lysozyme and ZnB (p < 0.05). Interestingly, dietary egg lysozyme resulted in higher final weight and BWG and lower FCR than rabbits treated with ZnB (p < 0.05). Rabbits treated with egg lysozyme and ZnB additives had markedly lower populations of Clostridium spp. and Escherichia coli (p < 0.05) compared with the control. However, the counts of Lactobacillus and total bacteria were meaningfully increased in the the intestines of rabbits treated with egg lysozyme and ZnB (p < 0.05). The blood total protein and globulin of rabbits fed dietary egg lysozyme and ZnB additives were meaningfully increased (p < 0.05). Blood creatinine was significantly lowered by dietary egg lysozyme compared with the control and ZnB-treated rabbits (p < 0.05). The levels of blood urea, ALT, and AST were markedly lowered (p < 0.05) by dietary egg lysozyme and ZnB. The gene expressions of superoxide dismutase 1 (SOD1) and glutathione peroxidase (GPX) in the liver of rabbits fed dietary egg lysozyme and ZnB additives were markedly upregulated (p < 0.05) compared with the control. Dietary egg lysozyme resulted in higher expression of SOD1 and GPX genes than rabbits treated with ZnB (p < 0.05). In conclusion, the inclusion of egg lysozyme could replace the inclusion of ZnB in the diets of rabbits.
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Affiliation(s)
- Mahmoud H. EL-Deep
- Animal Production Research Institute, Sakha Station, Kafr El-Sheikh 33717, Egypt; (M.H.E.-D.); (M.S.S.)
| | - Khairy A. Amber
- Department of Poultry Production, Faculty of Agriculture, Kafrelsheikh University, Kafr El-Sheikh 33516, Egypt; (K.A.A.); (Y.Z.E.)
| | - Yahia Z. Eid
- Department of Poultry Production, Faculty of Agriculture, Kafrelsheikh University, Kafr El-Sheikh 33516, Egypt; (K.A.A.); (Y.Z.E.)
| | - Salama Mostafa Aboelenin
- Biology Department, Turabah University College, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia;
| | - Mohamed Mohamed Soliman
- Clinical Laboratory Sciences Department, Turabah University College, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia;
| | - Mohamed S. Sakr
- Animal Production Research Institute, Sakha Station, Kafr El-Sheikh 33717, Egypt; (M.H.E.-D.); (M.S.S.)
| | - Mahmoud A. O. Dawood
- Department of Animal Production, Faculty of Agriculture, Kafrelsheikh University, Kafr El-Sheikh 33516, Egypt
- Correspondence:
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9
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Park JH, Sureshkumar S, Kim IH. Effects of dietary lysozyme supplementation on growth performance, nutrient digestibility, intestinal microbiota, and blood profiles of weanling pigs challenged with Escherichia coli. JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2021; 63:501-509. [PMID: 34189500 PMCID: PMC8204002 DOI: 10.5187/jast.2021.e54] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 03/02/2021] [Accepted: 03/03/2021] [Indexed: 11/20/2022]
Abstract
The aim of this was evaluate the efficacy of lysozyme on growth performance,
nutrient digestibility, excreta microflora population, and blood profiles of
weanling pigs under Escherichia coli (E. coli)
challenge. A total of 30 piglets weaned at 25 days, 7.46 kg body weight, were
assigned to three dietary treatments, composed of five replications, two piglets
per replication, for 7 days. The dietary treatment groups were negative control
(NC; without antibiotics and lysozyme), positive control (PC; NC + antibiotics),
lysozyme (NC + 0.1% lysozyme). All piglets were challenged orally with 6 ml
suspension, containing E. coli K88 (2 × 109
CFU/mL). Dietary supplementation with lysozyme and PC resulted in no significant
differences in average daily gain and gain to feed efficiency. Weanling pigs fed
with E. coli challenge with lysozyme and PC treatments had
significantly enhanced nutrient retentions of dry matter and energy
(p < 0.05); however, there was a tendency to
increase nitrogen digestibility. Furthermore, dietary inclusion of lysozyme and
antibiotics treatment groups had a beneficial effect on excreta, ileal, and
cecal of the fecal microbial population as decreased E. coli
(p < 0.05) counts, without effects on
lactobacillus counts. A significant effect were observed on
a white blood cells, epinephrine and cortisol concentrations were reduced in
piglets fed diets containing E. coli challenge with lysozyme
and antibiotics supplementation comparison with the NC group. Therefore, the
present data indicate that lysozyme in diet could ameliorate the experimental
stress response induced by E. coli in piglets by decreasing
intestinal E. coli, white blood cells and stress hormones and
improving nutrient digestibility.
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Affiliation(s)
- Jae Hong Park
- Department of Animal Resource and Science, Dankook University, Cheonan 31116, Korea
| | | | - In Ho Kim
- Department of Animal Resource and Science, Dankook University, Cheonan 31116, Korea
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10
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EL-Deep MH, Amber KA, Eid YZ, Alrashood ST, Khan HA, Sakr MS, Dawood MAO. The Influence of Dietary Chicken Egg Lysozyme on the Growth Performance, Blood Health, and Resistance Against Escherichia coli in the Growing Rabbits' Cecum. Front Vet Sci 2020; 7:579576. [PMID: 33195588 PMCID: PMC7593809 DOI: 10.3389/fvets.2020.579576] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 09/04/2020] [Indexed: 02/05/2023] Open
Abstract
The dietary chicken egg lysozyme (LZM) at different concentrations was tested on the growth performance, blood health, and resistance against Escherichia coli of growing rabbits. A total number of 48 rabbits averaged 611.25 g (5 weeks of age) of APRI line-rabbits (Egyptian developed line) were allocated into four treatments (three replicates and each contained four rabbits) of 5-week weaning APRI rabbits. The first group was fed a basal diet without LZM supplementation and served as a control group, whereas the remaining groups of rabbits were fed a basal diet supplemented with LZM at 50, 100, and 200 mg/kg diet, respectively, for 8 weeks. The obtained results revealed that rabbits fed the basal diet supplemented with different concentrations of LZM linearly (P < 0.05) displayed improved growth performance and reduced feed intake and FCR. The best result was for rabbits fed a 200 mg per kg diet supplemented with LZM, followed by a 100 mg per kg diet. The total count of Escherichia coli and Clostridium count was linearly (P < 0.05) decreased by adding LZM at 100 and 200 mg/kg in the diets compared to the control groups. In contrast, total bacterial count and the total count of Lactobacilli had increased considerably by increasing LZM at different levels relative to the control groups. The LZM supplementation linearly (P < 0.05) increased hematological parameters (RBCs, PCV, Hb, and WBCs) together with an increase in lymphocyte count compared to the control group. The total protein and globulin concentrations were significantly (P < 0.05) increased by feeding with LZM. On the other hand, ALT, AST, urea, and creatinine were significantly (P < 0.05) decreased by increasing LZM supplementation. It could be concluded that supplementation of the rabbit's diet with chicken egg LZM was able to improve the growth performance and hematological and serum biochemical parameters compared with the control group. Therefore, LZM is required at the rate of the hobx100-200 mg/kg diet as a potential feed additive and a friendly alternative for antibiotics in rabbit feed.
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Affiliation(s)
- Mahmoud H. EL-Deep
- Animal Production Research Institute, Agricultural, Research Center, Ministry of Agriculture, Giza, Egypt
| | - Khairy A. Amber
- Department of Poultry Production, Faculty of Agriculture, Kafrelsheikh University, Kafr El-Sheikh, Egypt
| | - Yahya Z. Eid
- Department of Poultry Production, Faculty of Agriculture, Kafrelsheikh University, Kafr El-Sheikh, Egypt
| | - Sara T. Alrashood
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Haseeb A. Khan
- Department of Biochemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Mohamed S. Sakr
- Animal Production Research Institute, Agricultural, Research Center, Ministry of Agriculture, Giza, Egypt
| | - Mahmoud A. O. Dawood
- Department of Animal Production, Faculty of Agriculture, Kafrelsheikh University, Kafr El-Sheikh, Egypt
- *Correspondence: Mahmoud A.O. Dawood ;
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11
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Sais M, Barroeta AC, López-Colom P, Nofrarías M, Majó N, Lopez-Ulibarri R, Pérez Calvo E, Martín-Orúe SM. Evaluation of dietary supplementation of a novel microbial muramidase on gastrointestinal functionality and growth performance in broiler chickens. Poult Sci 2020; 99:235-245. [PMID: 32416807 PMCID: PMC7587705 DOI: 10.3382/ps/pez466] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 08/05/2019] [Indexed: 12/17/2022] Open
Abstract
This study was conducted to assess the effect of dietary supplementation of Muramidase 007 to broiler chickens on gastrointestinal functionality, evaluating growth performance, apparent ileal digestibility, intestinal histomorphology, vitamin A in plasma and cecal microbiota. A total of 480 one-day male chicks (Ross 308) were distributed in 16 pens allocated in 2 experimental diets: the control diet (CTR) without feed enzymes, coccidiostat or growth promoters, and the experimental diet (MUR): CTR supplemented with 35,000 units (LSU(F))/kg of the Muramidase 007. Digesta and tissue samples were obtained on days 9 and 36 of the study. A lower feed conversion ratio was observed in the MUR treatment. Apparent ileal digestibility of DM, organic matter and energy were improved by Muramidase 007. It was also observed that MUR improved digestibility of total fatty acids, mono-unsaturated fatty acids and poly-unsaturated fatty acids, and content of vitamin A in plasma at day 9 (P < 0.05). Histomorphological analysis of jejunum samples revealed no differences in the villus height or crypt depth; but a higher number of goblet cells and intraepithelial lymphocytes at day 36 with MUR. No differences were observed in plate counts of enterobacteria or Lactobacillus along the gastrointestinal tract, neither on the cecal short-chain fatty acids. An statistical trend was observed for reduction of cecal clostridia at day 9 for MUR. Analysis of cecal microbiota structure by 16S rRNA gene sequencing revealed relevant changes correlated to age. At day 9, broilers receiving MUR showed decreased alpha diversity compared to CTR that was not detected at day 36. Changes in specific taxonomic groups with an increase in Lactobacillus genus were identified. In conclusion, evaluation of the variables in this study indicates that dietary Muramidase 007 contributes to improve feed conversation ratio and gastrointestinal function in broiler chickens. Effects could have been mediated by slight shifts observed in the intestinal microbiota. More studies are guaranteed to fully understand the mechanisms involved.
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Affiliation(s)
- Mounira Sais
- Animal Nutrition and Welfare Service. Animal and Food Science Department, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
| | - Ana C Barroeta
- Animal Nutrition and Welfare Service. Animal and Food Science Department, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
| | - Paola López-Colom
- Animal Nutrition and Welfare Service. Animal and Food Science Department, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
| | - Miquel Nofrarías
- IRTA, Centre de Recerca en Sanitat Animal (CReSA, UAB-IRTA), Campus de la Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Natàlia Majó
- IRTA, Centre de Recerca en Sanitat Animal (CReSA, UAB-IRTA), Campus de la Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; Departament de Sanitat i Anatomia Animals, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
| | - Rual Lopez-Ulibarri
- DSM Nutritional Products Ltd, Nutrition Innovation Center - ANH, 4303 Kaiseraugst, Switzerland
| | - Estefanía Pérez Calvo
- DSM Nutritional Products Ltd, Nutrition Innovation Center - ANH, 68128 Village Neuf, France
| | - Susana M Martín-Orúe
- Animal Nutrition and Welfare Service. Animal and Food Science Department, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain.
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12
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Lysozyme-Induced Transcriptional Regulation of TNF-α Pathway Genes in Cells of the Monocyte Lineage. Int J Mol Sci 2019; 20:ijms20215502. [PMID: 31694163 PMCID: PMC6862675 DOI: 10.3390/ijms20215502] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 10/31/2019] [Accepted: 11/02/2019] [Indexed: 12/14/2022] Open
Abstract
Lysozyme is one of the most important anti-bacterial effectors in the innate immune system of animals. Besides its direct antibacterial enzymatic activity, lysozyme displays other biological properties, pointing toward a significant anti-inflammatory effect, many aspects of which are still elusive. Here we investigate the perturbation of gene expression profiles induced by lysozyme in a monocyte cell line in vitro considering a perspective as broad as the whole transcriptome profiling. The results of the RNA-seq experiment show that lysozyme induces transcriptional modulation of the TNF-α/IL-1β pathway genes in U937 monocytes. The analysis of transcriptomic profiles with IPA® identified a simple but robust molecular network of genes, in which the regulation trends are fully consistent with the anti-inflammatory activity of lysozyme. This study provides the first evidence in support of the anti-inflammatory action of lysozyme on the basis of transcriptomic regulation data resulting from the broad perspective of a whole-transcriptome profiling. Such important effects can be achieved with the supplementation of relatively low concentrations of lysozyme, for a short time of exposure. These new insights allow the potential of lysozyme in pharmacological applications to be better exploited.
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13
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Li W, Li M, Cao X, Han H, Kong F, Yue X. Comparative analysis of whey proteins in donkey colostrum and mature milk using quantitative proteomics. Food Res Int 2019; 127:108741. [PMID: 31882075 DOI: 10.1016/j.foodres.2019.108741] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Revised: 09/30/2019] [Accepted: 10/02/2019] [Indexed: 11/28/2022]
Abstract
Donkey milk is attracting increasing attention as a nutritional milk source similar to human milk. In this study, we carried out qualitative and quantitative analysis of the donkey whey proteome using a label-free proteomic approach, combined with parallel reaction monitoring (PRM) as a validation method. A total of 300 whey proteins were identified in donkey colostrum (DC) and donkey mature (DM) milk, of which 18 were differentially expressed (P < 0.05) between the two types of milk. Gene ontology (GO) analysis showed that differentially and uniquely expressed proteins were mainly involved in cellular processes, response to stimulus, metabolic processes, and biological regulation. Their molecular functions included binding, catalytic activity, and molecular functional regulation, and their main annotated areas of origin were the cell, cell-part, and the extracellular region. Most differentially and uniquely expressed proteins were linked with malaria, systemic lupus erythematosus, or antigen processing and presentation. Our results provide insight into the complexity of the donkey whey proteome and molecular evidence for nutritional differences between different lactation stages.
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Affiliation(s)
- Weixuan Li
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning Province, China
| | - Mohan Li
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning Province, China
| | - Xueyan Cao
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning Province, China
| | - Hongjiao Han
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning Province, China
| | - Fanhua Kong
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning Province, China
| | - Xiqing Yue
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning Province, China.
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14
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Schliffka W, Zhai HX, Pérez Calvo E, van Cauwenberghe S, Walsh MC, Lopez-Ulibarri R. Safety and efficacy evaluation of a novel dietary muramidase for swine. Heliyon 2019; 5:e02600. [PMID: 31687489 PMCID: PMC6820093 DOI: 10.1016/j.heliyon.2019.e02600] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 08/27/2019] [Accepted: 10/01/2019] [Indexed: 12/21/2022] Open
Abstract
The safety of a novel microbial muramidase (Muramidase 007) as a feed additive for swine was evaluated in a target animal safety study (Experiment 1). Forty weanling pigs were allotted to 4 dietary treatments: T1 control group, and 3 groups receiving Muramidase 007 in increasing doses: T2 65,000 (1X), T3 325,000 (5X) and T4 650,000 (10X) LSU(F)/kg feed. The efficacy of Muramidase 007 on growth performance was evaluated in a feeding experiment (Experiment 2). A total of 288 piglets were allotted to two groups: T1 control group and T2 receiving Muramidase 007 at 50,000 (LSU(F)/kg feed. In Experiment 1, no growth depression of pigs was observed. No adverse effects of Muramidase 007 were observed for any of the hematology and serum chemistry parameters measured or on pig health status. Post-mortem evaluation showed no adverse effects due to Muramidase 007 supplementation in the gross pathology or in the histological examination. In Experiment 2, Muramidase 007 significantly increased overall (d 0-42) average daily gain (ADG) and tended to improve overall average daily feed intake (ADFI) and day 42 body weight of nursery pigs and had no effect on feed conversion ratio (FCR). Overall, results of these studies show that there were no adverse effects of Muramidase 007 compared to the control group.
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Affiliation(s)
- Wolfgang Schliffka
- DSM Nutritional Products AG, Wurmisweg 576, 4303 Kaiseraugst, Switzerland
| | - Heng-Xiao Zhai
- DSM Nutritional Products China, Animal Nutrition Research Center Co., Ltd, Bazhou, Hebei Province, China 065799
| | - Estefania Pérez Calvo
- DSM Nutritional Products France, Centre de Recherche en Nutrition et Santé Animale, F-68305 Saint Louis, France
| | | | - Maria C. Walsh
- DSM Nutritional Products AG, Wurmisweg 576, 4303 Kaiseraugst, Switzerland
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15
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Xiong X, Zhou J, Liu H, Tang Y, Tan B, Yin Y. Dietary lysozyme supplementation contributes to enhanced intestinal functions and gut microflora of piglets. Food Funct 2019; 10:1696-1706. [PMID: 30839962 DOI: 10.1039/c8fo02335b] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Lysozyme plays a significant role in defense against bacterial pathogens and in regulating the interactions between gut microbiota and host immune systems. Here, the effects of dietary lysozyme on the intestinal development, immunity, and colonic microbiota of piglets were comprehensively evaluated. Twenty-four seven-day-old piglets from Landrace × Yorkshire sows (n = 8 per group) received no supplementation (group A, the control), 0.5 g kg-1 lysozyme (group B), or 1.0 g kg-1 lysozyme (group C). After the 14-day treatment, piglets supplemented with 1.0 g kg-1 lysozyme had higher average weaning weight, jejunal villus height (VH), and ileal lymphocyte counts than those in the control groups (P < 0.005). Serum total protein and albumin were significantly up-regulated (P < 0.005) and immunoglobulin G tended to increase in the 0.5 g kg-1 lysozyme group (P = 0.065). Bacteroidetes, Proteobacteria, and Fibrobacteres all showed a significant increase in relative abundance after lysozyme treatment at the highest dosage (P < 0.005). At the genus level, the relative abundance of Lactobacillus, Treponema_2, and Prevotellaceae_NK3B31_group was significantly increased in the lysozyme-treated groups. Furthermore, microbial genes related to glycerolipid, propanoate, and pyruvate metabolism showed much more abundance in the 1.0 g kg-1 lysozyme group. Interleukin-4 in the colonic mucosa was significantly up-regulated, while transforming growth factor-β1 showed significant reduction in the lysozyme-treated group. Moreover, mucosal catalase and malondialdehyde in colon samples increased significantly. These results demonstrate that dietary lysozyme efficaciously improves the development of intestinal structure and functions and promotes the enrichment of beneficial microbes in the gut microbiota in terms of both composition and metabolic functions.
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Affiliation(s)
- Xia Xiong
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences; National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production; Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production; Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Changsha, Hunan 410125, People's Republic of China.
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16
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Zou L, Xiong X, Liu H, Zhou J, Liu Y, Yin Y. Effects of dietary lysozyme levels on growth performance, intestinal morphology, immunity response and microbiota community of growing pigs. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2019; 99:1643-1650. [PMID: 30198063 DOI: 10.1002/jsfa.9348] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 08/31/2018] [Accepted: 09/02/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Lysozyme has been studied as a potential alternative to antibiotics for animals in recent years. The aim of this study was to evaluate the effect of dietary lysozyme on growth performance, serum biochemical parameters, immune response and gut health of growing pigs. RESULTS A total of 216 growing pigs (19.81 ± 0.47 kg) were fed the diets supplemented with colistin sulfate at 20 mg kg-1 (control), or lysozyme at 50 (L50) or 100 mg kg-1 (L100) diet for 30 days. The results showed that pigs fed with L100 or control had greater average daily gain and gain-to-feed ratio than pigs in the L50 group. Pigs fed with L100 or colistin had greater villus height to crypt depth ratio in jejunum compared with pigs in the L50 group. Pigs fed with L100 had greater serum immunoglobulin A and jejunal secretory immunoglobulin A than control and L50, but lower serum total protein and globulin than control. No differences were observed in the messenger RNA expression of genes related to mucosal cytokines, antioxidant capacity, enzyme activity, and barrier functions among three treatments. The caecal microflora evenness was lower in the L100 group than in the control or L50 group by 16S ribosomal DNA sequencing. Phylogenetic investigation of communities by reconstruction of unobserved states analysis predicted that lysozyme may modify nutrient metabolism by changing intestinal microbial function of pigs. CONCLUSIONS Pigs supplemented with 100 mg kg-1 lysozyme had similar growth performance and intestinal morphology as pigs fed with colistin. This was likely due to the improved systemic and gut immune responses and the reduced microbiota diversity by feeding 100 mg kg-1 lysozyme. © 2018 Society of Chemical Industry.
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Affiliation(s)
- Lijun Zou
- Key Laboratory for Agro-Ecological Processes in Subtropical Regions, Institute of Subtropical Agriculture, the Chinese Academy of Sciences, Changsha, China
- Laboratory of Basic Biology, Hunan First Normal University, Changsha, China
- Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, School of Life Sciences, Hunan Normal University, Changsha, China
| | - Xia Xiong
- Key Laboratory for Agro-Ecological Processes in Subtropical Regions, Institute of Subtropical Agriculture, the Chinese Academy of Sciences, Changsha, China
| | - Hongnan Liu
- Key Laboratory for Agro-Ecological Processes in Subtropical Regions, Institute of Subtropical Agriculture, the Chinese Academy of Sciences, Changsha, China
| | - Jian Zhou
- Key Laboratory for Agro-Ecological Processes in Subtropical Regions, Institute of Subtropical Agriculture, the Chinese Academy of Sciences, Changsha, China
| | - Yanhong Liu
- Department of Animal Science, University of California, Davis, CA, USA
| | - Yulong Yin
- Key Laboratory for Agro-Ecological Processes in Subtropical Regions, Institute of Subtropical Agriculture, the Chinese Academy of Sciences, Changsha, China
- Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, School of Life Sciences, Hunan Normal University, Changsha, China
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17
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Xu S, Shi J, Shi X, Dong Y, Wu X, Li Z, Fang Z, Lin Y, Che L, Li J, Feng B, Wang J, Wu D, Shen Y. Effects of dietary supplementation with lysozyme during late gestation and lactation stage on the performance of sows and their offspring. J Anim Sci 2019; 96:4768-4779. [PMID: 30165614 DOI: 10.1093/jas/sky338] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 08/13/2018] [Indexed: 12/14/2022] Open
Abstract
This study investigated the effects of supplementing sow diets with lysozyme during the late gestation to lactation stage on the performance of sows and their offspring. Sixty sows (Yorkshire × Landrace, 3 to 6 of parity) at day 85 of gestation were allocated to the following 3 dietary treatments: 1) sows fed a basal diet from late gestation to lactation (control, n = 20), 2) sows fed a basal diet with lysozyme 150 g/t (LZM 150, n = 20), and 3) sows fed a basal diet with lysozyme 300 g/t (LZM 300, n = 20). During the lactation period, sows fed diets containing lysozyme had increased average daily feed intake (ADFI) (P < 0.01) and decreased weaning-to-estrus interval (WEI, P < 0.05), but there were no significant effects on backfat during the trial among treatments. Sows fed lysozyme diets had increased (P < 0.05) serum concentration of total protein (TP) compared with those fed the control diets. Serum immunoglobulin M (IgM) of the sows increased (P < 0.05) on day 1 of lactation, immunoglobulin A (IgA) and interleukin-10 (IL-10) increased (P < 0.05) on day 7 of lactation, and immunoglobulin G (IgG) had a tendency to increase (P = 0.05) during the lactation. Milk concentration of IgA increased (P < 0.05) on day 1 and 7 of lactation and tended to be greater (P = 0.06) on day 21 of lactation. No significant differences among the dietary treatments were observed in placental tissue mRNA expression of interleukin-6 (IL-6), IL-10, tumor necrosis factor-α (TNF-α), polymeric immunoglobulin receptor (pIgR), or the concentrations of IL-6, IL-10, TNF-α, or secretory immunoglobulin A (sIgA). Moreover, there was a decrease (P < 0.05) in stillborn in sows fed lysozyme diets. The diarrhea rate decreased (P < 0.05) and serum concentrations of IgA, IgG, IgM, and IL-10 increased (P < 0.05) in piglets from sows fed the diets containing lysozyme compared with piglets from sows fed the control diet. The serum concentrations of TP increased (P < 0.05), and albumin (ALB) and globulin (GLB) had a tendency to increase (P = 0.08, P = 0.06) in piglets from sows fed the diets containing lysozyme compared with piglets from sows fed the control diet. In conclusion, this study indicates that feeding sows diets supplemented with lysozyme from the late gestation through lactation stage increased sow ADFI during the lactation, shortened the WEI, and improved the maternal and offspring health status as indicated by immunological characteristics and a reduced incidence of diarrhea in piglets.
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Affiliation(s)
- Shengyu Xu
- Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Jiankai Shi
- Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Xiaoling Shi
- Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Yanpeng Dong
- Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Xiaoling Wu
- Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Zimei Li
- Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Zhengfeng Fang
- Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Yan Lin
- Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Lianqiang Che
- Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Jian Li
- Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Bin Feng
- Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Jianping Wang
- Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - De Wu
- Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Yanping Shen
- Shanghai Longyou Biotechnology Co, Ltd, Shanghai, China
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18
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Zhou J, Xiong X, Yin J, Zou L, Wang K, Shao Y, Yin Y. Dietary Lysozyme Alters Sow's Gut Microbiota, Serum Immunity and Milk Metabolite Profile. Front Microbiol 2019; 10:177. [PMID: 30787921 PMCID: PMC6373202 DOI: 10.3389/fmicb.2019.00177] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 01/22/2019] [Indexed: 12/11/2022] Open
Abstract
The aim of current study was to determine variations in sow's gut microbiota, serum immunity, and milk metabolite profile mediated by lysozyme supplementation. Twenty-four pregnant sows were assigned to a control group without supplementation and two treatments with 0.5 kg/t and 1.0 kg/t lysozyme provided in formula feed for 21 days (n = 8 per treatment). Microbiota analysis and metagenomic predictions were based on 16s RNA high-throughput sequencing. Milk metabolome was assessed by untargeted liquid chromatography tandem mass spectrometry. Serum biochemical indicators and immunoglobulins were also determined. Gut microbial diversity of sows receiving 1.0 kg/t lysozyme treatment was significantly reduced after the trial. Spirochaetes, Euryarchaeota, and Actinobacteria significantly increased while Firmicutes showed a remarkable reduction in 1.0 kg/t group compared with control. Lysozyme addition rebuilt sow's gut microbiota to beneficial composition identified by reduced richness of Escherichia coli and increased abundance of Lactobacillus amylovorus. Accordingly, microbial metabolic functions including pyrimidine metabolism, purine metabolism, and amino acid related enzymes were significantly up-regulated in 1.0 kg/t group. Microbial metabolic phenotypes like the richness of Gram-positive bacteria and oxidative stress tolerance were also significantly reduced by lysozyme treatment. Serum alanine transaminase (ALT) activity and IgA levels were significantly down-regulated in the 1.0 kg/t group compared with control, but IgM levels showed a significantly increase in 1.0 kg/t group. Milk metabolites such as L-glutamine, creatine, and L-arginine showed significantly dose-dependent changes after treatment. Overall, lysozyme supplementation could effectively improve the composition, metabolic functions, and phenotypes of sow's gut microbiota and it also benefit sows with better serum immunity and milk composition. This research could provide theoretical support for further application of lysozyme in promoting animal gut health and prevent pathogenic infections in livestock production.
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Affiliation(s)
- Jian Zhou
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences - National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production - Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production - Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Changsha, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Xia Xiong
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences - National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production - Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production - Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Changsha, China
| | - Jia Yin
- Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, Laboratory of Animal Nutrition and Human Health, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Lijun Zou
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences - National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production - Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production - Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Changsha, China.,Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, Laboratory of Animal Nutrition and Human Health, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Kexing Wang
- Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, Laboratory of Animal Nutrition and Human Health, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Yirui Shao
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences - National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production - Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production - Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Changsha, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Yulong Yin
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences - National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production - Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production - Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Changsha, China.,University of Chinese Academy of Sciences, Beijing, China.,Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, Laboratory of Animal Nutrition and Human Health, College of Life Sciences, Hunan Normal University, Changsha, China
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19
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Liu Y, Ji P. Dietary Factors in Prevention of Pediatric Escherichia coli Infection: A Model Using Domestic Piglets. ILAR J 2018; 59:338-351. [PMID: 31095688 DOI: 10.1093/ilar/ilz005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 02/04/2019] [Indexed: 01/16/2023] Open
Abstract
Enterotoxigenic Escherichia coli (ETEC) is the major etiological agent causing acute watery diarrhea that is most frequently seen in young children in lower-income countries. The duration of diarrheal symptom may be shortened by antibiotic treatment, but ETEC is relative refractory to common antibiotics. Burgeoning evidence suggests bioactive components that naturally occur in human milk (e.g., lysozyme and oligosaccharides) and plants (e.g., nondigestible carbohydrates and phytochemicals) contain antimicrobial functions are promising preventive measures to control ETEC infection. Although the exact protective mechanisms may vary for each compound and are still not completely understood, they generally act to (1) competitively inhibit the binding of pathogenic bacteria and toxins to gut epithelium; (2) directly kill pathogens; and (3) stimulate and/or enhance host mucosal and systemic immune defense against pathogenic microorganisms. An appropriate ETEC-challenge animal model is critical to evaluate the effect and unveil the mechanism of bioactive compounds in prevention of enteric infection. Despite wide application in biomedical research, rodents do not usually manifest typical clinical signs of enteric infections. The remarkable differences in digestive physiology, immune response, and gut microbiota between rodents and human beings necessitate the use of alternative animal models. Pigs are closely related to humans in terms of genomes, physiology, anatomy of gastrointestinal tracts, digestive enzymes, components of immune system, and gut microbiota. Like human infants and young children, nursing and nursery piglets are more susceptible to ETEC infection and reproduce the clinical signs as observed in humans. Hence, the ETEC-challenge piglet represents a valuable translational model to study pathogenesis and evaluate dietary factors (e.g., milk bioactive compounds, nondigestible carbohydrates, and phytochemicals) as preventive measures for ETEC infection in pediatrics.
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Affiliation(s)
| | - Peng Ji
- Department of Nutrition, University of California, Davis, California
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20
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Localized expression of antimicrobial proteins mitigates huanglongbing symptoms in Mexican lime. J Biotechnol 2018; 285:74-83. [DOI: 10.1016/j.jbiotec.2018.08.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 07/16/2018] [Accepted: 08/24/2018] [Indexed: 11/19/2022]
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21
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Clark S, Mora García MB. A 100-Year Review: Advances in goat milk research. J Dairy Sci 2018; 100:10026-10044. [PMID: 29153153 DOI: 10.3168/jds.2017-13287] [Citation(s) in RCA: 159] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2017] [Accepted: 07/21/2017] [Indexed: 12/14/2022]
Abstract
In the century of research chronicled between 1917 and 2017, dairy goats have gone from simply serving as surrogates to cows to serving as transgenic carriers of human enzymes. Goat milk has been an important part of human nutrition for millennia, in part because of the greater similarity of goat milk to human milk, softer curd formation, higher proportion of small milk fat globules, and different allergenic properties compared with cow milk; however, key nutritional deficiencies limit its suitability for infants. Great attention has been given not only to protein differences between goat and cow milk, but also to fat and enzyme differences, and their effect on the physical and sensory properties of goat milk and milk products. Physiological differences between the species necessitate different techniques for analysis of somatic cell counts, which are naturally higher in goat milk. The high value of goat milk throughout the world has generated a need for a variety of techniques to detect adulteration of goat milk products with cow milk. Advances in all of these areas have been largely documented in the Journal of Dairy Science (JDS), and this review summarizes such advances.
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Affiliation(s)
- Stephanie Clark
- Food Science and Human Nutrition, Iowa State University, Ames 50011-0152.
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22
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Souroullas K, Aspri M, Papademas P. Donkey milk as a supplement in infant formula: Benefits and technological challenges. Food Res Int 2018; 109:416-425. [PMID: 29803466 DOI: 10.1016/j.foodres.2018.04.051] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 03/30/2018] [Accepted: 04/23/2018] [Indexed: 12/17/2022]
Abstract
The aim of this review paper is to assess the applicability of donkey's milk to infants suffering from Cow Milk Protein Allergy (CMPA) compared to human and other available milk types. The bioactive and immune-supportive character which could be beneficial as a fortifier to the formula-fed infants is described while limitations of this type of milk are also discussed. Studies showed that human and donkey's milk have similar, overall, chemical composition as well as protein homogeneity and antigenic similarities. Several in vitro and in vivo studies showed that donkey's milk has nutraceutical and functional properties that can support immunity, alter metabolism and beneficially modify gut microbiota. Clinical studies illustrated that donkeys' milk is well tolerated (82.6%-88%) by infants. Finally, the effect that processing (i.e. thermal, non-thermal treatments, drying methods) has on donkey milk components is also discussed pointing out the need for minimally processing this type of milk.
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Affiliation(s)
- Kallis Souroullas
- Department of Agricultural Sciences, Biotechnology & Food Science, Cyprus University of Technology, 3036 Limassol, Cyprus
| | - Maria Aspri
- Department of Agricultural Sciences, Biotechnology & Food Science, Cyprus University of Technology, 3036 Limassol, Cyprus
| | - Photis Papademas
- Department of Agricultural Sciences, Biotechnology & Food Science, Cyprus University of Technology, 3036 Limassol, Cyprus.
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23
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Carneiro IDS, Menezes JNRD, Maia JA, Miranda AM, Oliveira VBSD, Murray JD, Maga EA, Bertolini M, Bertolini LR. Milk from transgenic goat expressing human lysozyme for recovery and treatment of gastrointestinal pathogens. Eur J Pharm Sci 2018; 112:79-86. [DOI: 10.1016/j.ejps.2017.11.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Revised: 10/20/2017] [Accepted: 11/04/2017] [Indexed: 01/26/2023]
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24
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Garas LC, Cooper CA, Dawson MW, Wang JL, Murray JD, Maga EA. Young Pigs Consuming Lysozyme Transgenic Goat Milk Are Protected from Clinical Symptoms of Enterotoxigenic Escherichia coli Infection. J Nutr 2017; 147:2050-2059. [PMID: 28954839 DOI: 10.3945/jn.117.251322] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 04/18/2017] [Accepted: 08/31/2017] [Indexed: 11/14/2022] Open
Abstract
Background: Diarrheal diseases in infancy and childhood are responsible for substantial morbidity and mortality in developing nations. Lysozyme, an antimicrobial component of human milk, is thought to play a role in establishing a healthy intestinal microbiota and immune system. Consumption of breast milk has been shown to prevent intestinal infections and is a recommended treatment for infants with diarrhea.Objective: This study aimed to examine the ability of lysozyme-rich goat milk to prevent intestinal infection.Methods: Six-week-old Hampshire-Yorkshire pigs were assigned to treatment groups balanced for weight, sex, and litter and were fed milk from nontransgenic control goats (GM group) or human lysozyme transgenic goats (hLZM group) for 2 wk before they were challenged with porcine-specific enterotoxigenic Escherichia coli (ETEC). Fecal consistency, complete blood counts, intestinal histology, and microbial populations were evaluated.Results: Pigs in the hLZM group had less severe diarrhea than did GM pigs at 24 and 48 h after ETEC infection (P = 0.01 and 0.05, respectively), indicating a less severe clinical disease state. Relative to baseline, postmilk hLZM pigs had 19.9% and 137% enrichment in fecal Bacteroidetes (P = 0.028) and Paraprevotellaceae (P = 0.003), respectively, and a 93.8% reduction in Enterobacteriaceae (P = 0.007), whereas GM pigs had a 60.9% decrease in Lactobacillales (P = 0.003) and an 83.3% enrichment in Burkholderiales (P = 0.010). After ETEC infection, hLZM pigs tended to have lower amounts (68.7% less) of fecal Enterobacteriaceae than did GM pigs (P = 0.058). There were 83.1% fewer bacteria translocated into the mesenteric lymph nodes of hLZM pigs than into those of GM pigs (P = 0.039), and hLZM pigs had 34% lower mucin 1 and 61% higher tumor necrosis factor-α expression in the ileum than did GM pigs (P = 0.046 and 0.034, respectively).Conclusion: Results of this study indicate that human lysozyme milk consumption before and during ETEC infection has a positive effect on clinical disease, intestinal mucosa, and gut microbiota in young pigs.
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Affiliation(s)
| | | | | | | | - James D Murray
- Departments of Animal Science.,Population Health and Reproduction, University of California, Davis, Davis, CA
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25
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Exogenous dietary lysozyme improves the growth performance and gut microbiota in broiler chickens targeting the antioxidant and non-specific immunity mRNA expression. PLoS One 2017; 12:e0185153. [PMID: 29059196 PMCID: PMC5653193 DOI: 10.1371/journal.pone.0185153] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 09/07/2017] [Indexed: 11/19/2022] Open
Abstract
Supplementation of exogenous enzymes in chickens has been widely practiced, yet mechanisms responsible are not fully delineated. To investigate the effects of the dietary lysozyme on the growth performance and immunity of broiler chickens, a total of 120 one-day-old Ross 308 chicks were randomly allocated into four groups, each having three replicates (30 birds/group). The chicks were fed the starter (1–21 d) and grower (22–35 d) diets supplemented with 0 (control), 70 (LYZ70), 90 (LYZ90) and 120 (LYZ120) g of lysozyme 10%® per ton of basal diet for five weeks. The results revealed significant improvement in the growth performance and gut environment. There were significant decreases (P < 0.05 or 0.01) in the harmful fecal Coliform and Clostridia and an increase (P ˂ 0.05) in the beneficial Lactobacillus in the lysozyme-supplemented groups, especially in LYZ90. Moreover, the mRNA expressions of Cu, Zn-superoxide dismutase (SOD1), glutathione peroxidase (GSH-Px), interferon-gamma (IFN-γ), interleukin-10 (IL-10), and interleukin-18 (IL-18) were upregulated in response to lysozyme supplementation. In comparison to control, LYZ90 fed birds had a significant increase (P < 0.01) in the GSH-Px gene expression that enhances the antioxidant status of the gut. Expression of the biomarkers involved in the gut non-specific immunity indicated significant increases in the mRNA expression of INF-γ (P < 0.001), IL-10 (P < 0.001), and IL-18 (P < 0.05) in LYZ90 group. Also, serum globulin levels were significantly elevated (P ˂ 0.05) in lysozyme-supplemented groups. Histologically, the intestinal villi length and crypts depth were also enhanced (P ˂ 0.05) by dietary lysozyme supplementation. In conclusion, supplementation of broiler chickens with exogenous lysozyme, especially at 90 g of lysozyme per ton of basal diet dose rate, improved the growth performance, gut antioxidant status, and nonspecific immunity of broiler chickens.
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26
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Wang M, Sun Z, Yu T, Ding F, Li L, Wang X, Fu M, Wang H, Huang J, Li N, Dai Y. Large-scale production of recombinant human lactoferrin from high-expression, marker-free transgenic cloned cows. Sci Rep 2017; 7:10733. [PMID: 28878310 PMCID: PMC5587717 DOI: 10.1038/s41598-017-11462-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 08/25/2017] [Indexed: 11/23/2022] Open
Abstract
Human lactoferrin (hLF) is a valuable protein for pharmaceutical products and functional foods, and worldwide demand for this protein has steadily increased. However, large-scale recombinant human lactoferrin (rhLF) production using current animal bioreactor techniques is limited by the low expression of foreign proteins, the use of antibiotic resistance genes and the down-regulation of endogenous milk proteins. Here, we generated a herd of marker-free, hLF bacterial artificial chromosome (BAC) transgenic cloned cows, as confirmed by Polymerase chain reaction, Southern blot and Western blot analyses. These transgenic cloned cows produced rhLF in milk at concentrations of 4.5–13.6 g/L. Moreover, the total protein content of the milk was increased. Over two hundred transgenic cloned cows were propagated by multiple ovulation and embryo transfer (MOET). A total of 400–450 g of rhLF protein, which shows similar enzymatic activity to natural hLF in iron binding and release, can be purified on a large scale from >100 L of milk per day. Our results suggested that transgenic bovine mammary bioreactors have the potential for large-scale protein production.
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Affiliation(s)
- Ming Wang
- State Key Laboratory for Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Zhaolin Sun
- State Key Laboratory for Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Tian Yu
- Kejienuo Biotechnology Company, Wuxi, China
| | - Fangrong Ding
- State Key Laboratory for Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Ling Li
- State Key Laboratory for Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Xi Wang
- Kejienuo Biotechnology Company, Wuxi, China
| | - Mingbo Fu
- Kejienuo Biotechnology Company, Wuxi, China
| | - Haiping Wang
- State Key Laboratory for Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Jinming Huang
- Dairy cattle Research Center, Academy of Agricultural Sciences, Shandong, China
| | - Ning Li
- State Key Laboratory for Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China.
| | - Yunping Dai
- State Key Laboratory for Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China.
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27
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Expression of recombinant human lysozyme in transgenic chicken promotes the growth of Bifidobacterium in the intestine and improves postnatal growth of chicken. AMB Express 2016; 6:110. [PMID: 27830497 PMCID: PMC5102985 DOI: 10.1186/s13568-016-0280-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2016] [Accepted: 10/31/2016] [Indexed: 12/20/2022] Open
Abstract
Lysozyme is one kind of antimicrobial proteins and often used as feed additive which can defend against pathogenic bacteria and enhance immune function of animals. In this study, we have injected the lentiviral vector expressing recombinant human lysozyme (rhLZ) gene into the blastoderm of chicken embryo to investigate the effect of recombinant human lysozyme on postnatal intestinal microbiota distribution and growth performance of chicken. Successfully, we generated 194 transgenic chickens identified by Southern blot with a positive transgenic rate of 24%. The average concentration of rhLZ was 29.90 ± 6.50 μg/mL in the egg white. Lysozyme in egg white of transgenic chickens had a significantly higher antibacterial activity than those of non-transgenic chickens by lysoplate assay (P < 0.05). The feces of transgenic and non-transgenic chickens were collected and five types of bacteria (Lactobacillus, Salmonella, Bifidobacterium, Staphylococcus aureus and Escherichia coli) were isolated and cultured to detect the impact of rhLZ on gut microbiota. Among the five bacteria, the number of Bifidobacterium in the intestine of those transgenic was significantly increased (P < 0.05). Moreover, the growth traits of the transgenic and non-transgenic chickens were analyzed. It was found that the 6-week shank length, 6-week weight and 18-week weight of transgenic chickens were significantly increased than that of non-transgenic chickens. The results demonstrated that rhLZ-transgenic chicken could promote the growth of Bifidobacterium in the intestine and improve the postnatal growth of chicken.
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28
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Large-scale production of functional human lysozyme from marker-free transgenic cloned cows. Sci Rep 2016; 6:22947. [PMID: 26961596 PMCID: PMC4785527 DOI: 10.1038/srep22947] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 02/24/2016] [Indexed: 11/08/2022] Open
Abstract
Human lysozyme is an important natural non-specific immune protein that is highly expressed in breast milk and participates in the immune response of infants against bacterial and viral infections. Considering the medicinal value and market demand for human lysozyme, an animal model for large-scale production of recombinant human lysozyme (rhLZ) is needed. In this study, we generated transgenic cloned cows with the marker-free vector pBAC-hLF-hLZ, which was shown to efficiently express rhLZ in cow milk. Seven transgenic cloned cows, identified by polymerase chain reaction, Southern blot, and western blot analyses, produced rhLZ in milk at concentrations of up to 3149.19 ± 24.80 mg/L. The purified rhLZ had a similar molecular weight and enzymatic activity as wild-type human lysozyme possessed the same C-terminal and N-terminal amino acid sequences. The preliminary results from the milk yield and milk compositions from a naturally lactating transgenic cloned cow 0906 were also tested. These results provide a solid foundation for the large-scale production of rhLZ in the future.
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29
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Rahmawati IS, Suntornsuk W. Effects of Fermentation and Storage on Bioactive Activities in Milks and Yoghurts. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.proche.2016.01.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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30
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Long Y, Lin S, Zhu J, Pang X, Fang Z, Lin Y, Che L, Xu S, Li J, Huang Y, Su X, Wu D. Effects of dietary lysozyme levels on growth performance, intestinal morphology, non-specific immunity and mRNA expression in weanling piglets. Anim Sci J 2015; 87:411-8. [PMID: 26419503 DOI: 10.1111/asj.12444] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2014] [Revised: 03/10/2015] [Accepted: 03/16/2015] [Indexed: 11/29/2022]
Abstract
The aim of the present study was to determine the effect of dietary lysozyme levels on growth performance, gut health and non-specific immunity of weanling piglets. A total of 150 weanling piglets were allocated to six treatments. The piglets were fed the same basel diet supplemented with 0, 30, 60, 90 and 120 mg/kg lysozyme as well as antibiotics for 28 days. From day 14 to day 28 of dietary treatment, piglets fed 90 mg/kg lysozyme had greater average daily gain than piglets fed control diet. During the whole experimental period, piglets fed 120 mg/kg lysozyme tended to have greater average daily gain than piglets fed control diet. Compared with piglets fed control diet, piglets fed diets containing antibiotics and 90 mg/kg lysozyme had greater villus height to crypt depth ratio in duodenum and jejunum. Additionally, dietary supplementation of 60 and 90 mg/kg lysozyme as well as antibiotics enhanced the phagocytic activity of peritoneal macrophages in piglets. In conclusion, dietary lysozyme can accelerate the growth of weanling piglets by improving gut health and non-specific immunity and supplementing 90 mg/kg lysozyme is as effective as antibiotics (20 mg/kg colistin sulphate + 50 mg/kg kitasamycin) in improving the growth performance of weanling piglets.
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Affiliation(s)
- Yanrong Long
- Key Laboratory for Animal Disease-Resistance Nutrition of the Ministry of Agriculture of China, Animal Nutrition Institute, Sichuan Agricultural University, Ya'an, China
| | - Sen Lin
- Key Laboratory for Animal Disease-Resistance Nutrition of the Ministry of Agriculture of China, Animal Nutrition Institute, Sichuan Agricultural University, Ya'an, China
| | - Jiatao Zhu
- Key Laboratory for Animal Disease-Resistance Nutrition of the Ministry of Agriculture of China, Animal Nutrition Institute, Sichuan Agricultural University, Ya'an, China
| | - Xiaoxue Pang
- Key Laboratory for Animal Disease-Resistance Nutrition of the Ministry of Agriculture of China, Animal Nutrition Institute, Sichuan Agricultural University, Ya'an, China
| | - Zhengfeng Fang
- Key Laboratory for Animal Disease-Resistance Nutrition of the Ministry of Agriculture of China, Animal Nutrition Institute, Sichuan Agricultural University, Ya'an, China
| | - Yan Lin
- Key Laboratory for Animal Disease-Resistance Nutrition of the Ministry of Agriculture of China, Animal Nutrition Institute, Sichuan Agricultural University, Ya'an, China
| | - Lianqiang Che
- Key Laboratory for Animal Disease-Resistance Nutrition of the Ministry of Agriculture of China, Animal Nutrition Institute, Sichuan Agricultural University, Ya'an, China
| | - Shengyu Xu
- Key Laboratory for Animal Disease-Resistance Nutrition of the Ministry of Agriculture of China, Animal Nutrition Institute, Sichuan Agricultural University, Ya'an, China
| | - Jian Li
- Key Laboratory for Animal Disease-Resistance Nutrition of the Ministry of Agriculture of China, Animal Nutrition Institute, Sichuan Agricultural University, Ya'an, China
| | - Yiming Huang
- Shanghai E.K.M biotechnolgy CO. LTD., Shang Hai, China
| | - Xiang Su
- Guangxi shangda tech CO. LTD., Guang Xi, China
| | - De Wu
- Key Laboratory for Animal Disease-Resistance Nutrition of the Ministry of Agriculture of China, Animal Nutrition Institute, Sichuan Agricultural University, Ya'an, China
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31
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Oliver WT, Wells JE. Lysozyme as an alternative to growth promoting antibiotics in swine production. J Anim Sci Biotechnol 2015; 6:35. [PMID: 26273432 PMCID: PMC4535397 DOI: 10.1186/s40104-015-0034-z] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Accepted: 07/15/2015] [Indexed: 11/10/2022] Open
Abstract
Lysozyme is a naturally occurring enzyme found in bodily secretions such as tears, saliva, and milk. It functions as an antimicrobial agent by cleaving the peptidoglycan component of bacterial cell walls, which leads to cell death. Antibiotics are also antimicrobials and have been fed at subtherapeutic levels to swine as growth promoters. These compounds benefit swine producers by minimizing production losses by increasing feed efficiency and decreasing susceptibility to bacterial infection and disease. This manuscript reviews the knowledge of the effects of lysozyme, as compared to traditional subtherapeutic antibiotics in swine feed, on pig performance and health. It is clear from decades of studies that antibiotic use in feeds increases pig performance, particularly in the nursery. Similarly, lysozyme, as a feed additive, increases growth and feed efficiency. While the mechanism by which antibiotics and lysozyme improve performance is not clearly understood, both of these feed additives improve gastrointestinal health, improve the metabolic profile, and alter the gastrointestinal bacteria ecology of swine. Therefore, lysozyme is a suitable alternative to growth-promoting subtherapeutic antibiotic use in swine feed.
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Affiliation(s)
- W T Oliver
- USDA, ARS, U.S. Meat Animal Research Center, P. O. Box 166, Clay Center, NE 68933-0166 USA
| | - J E Wells
- USDA, ARS, U.S. Meat Animal Research Center, P. O. Box 166, Clay Center, NE 68933-0166 USA
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32
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Cooper CA, Maga EA, Murray JD. Production of human lactoferrin and lysozyme in the milk of transgenic dairy animals: past, present, and future. Transgenic Res 2015; 24:605-14. [PMID: 26059245 DOI: 10.1007/s11248-015-9885-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Accepted: 06/03/2015] [Indexed: 12/29/2022]
Abstract
Genetic engineering, which was first developed in the 1980s, allows for specific additions to animals' genomes that are not possible through conventional breeding. Using genetic engineering to improve agricultural animals was first suggested when the technology was in the early stages of development by Palmiter et al. (Nature 300:611-615, 1982). One of the first agricultural applications identified was generating transgenic dairy animals that could produce altered or novel proteins in their milk. Human milk contains high levels of antimicrobial proteins that are found in low concentrations in the milk of ruminants, including the antimicrobial proteins lactoferrin and lysozyme. Lactoferrin and lysozyme are both part of the innate immune system and are secreted in tears, mucus, and throughout the gastrointestinal (GI) tract. Due to their antimicrobial properties and abundance in human milk, multiple lines of transgenic dairy animals that produce either human lactoferrin or human lysozyme have been developed. The focus of this review is to catalogue the different lines of genetically engineered dairy animals that produce either recombinant lactoferrin or lysozyme that have been generated over the years as well as compare the wealth of research that has been done on the in vitro and in vivo effects of the milk they produce. While recent advances including the development of CRISPRs and TALENs have removed many of the technical barriers to predictable and efficient genetic engineering in agricultural species, there are still many political and regulatory hurdles before genetic engineering can be used in agriculture. It is important to consider the substantial amount of work that has been done thus far on well established lines of genetically engineered animals evaluating both the animals themselves and the products they yield to identify the most effective path forward for future research and acceptance of this technology.
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Affiliation(s)
- Caitlin A Cooper
- Department of Animal Science, University of California-Davis, 1 Shields Ave, Davis, CA, USA,
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Wells J, Berry E, Kalchayanand N, Rempel L, Kim M, Oliver W. Effect of lysozyme or antibiotics on faecal zoonotic pathogens in nursery pigs. J Appl Microbiol 2015; 118:1489-97. [DOI: 10.1111/jam.12803] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Revised: 02/25/2015] [Accepted: 03/12/2015] [Indexed: 11/28/2022]
Affiliation(s)
- J.E. Wells
- USDA; ARS; U.S. Meat Animal Research Center; Clay Center NE USA
| | - E.D. Berry
- USDA; ARS; U.S. Meat Animal Research Center; Clay Center NE USA
| | - N. Kalchayanand
- USDA; ARS; U.S. Meat Animal Research Center; Clay Center NE USA
| | - L.A. Rempel
- USDA; ARS; U.S. Meat Animal Research Center; Clay Center NE USA
| | - M. Kim
- USDA; ARS; U.S. Meat Animal Research Center; Clay Center NE USA
| | - W.T. Oliver
- USDA; ARS; U.S. Meat Animal Research Center; Clay Center NE USA
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34
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Laible G, Wei J, Wagner S. Improving livestock for agriculture - technological progress from random transgenesis to precision genome editing heralds a new era. Biotechnol J 2014; 10:109-20. [DOI: 10.1002/biot.201400193] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 11/04/2014] [Accepted: 11/24/2014] [Indexed: 12/17/2022]
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35
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Generation of bi-transgenic pigs overexpressing human lactoferrin and lysozyme in milk. Transgenic Res 2014; 24:365-73. [PMID: 25236863 DOI: 10.1007/s11248-014-9835-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Accepted: 09/06/2014] [Indexed: 10/24/2022]
Abstract
Intensive swine production industry uses antibiotics to treat diseases and improve pig growth. This can not only cause antibiotic resistance, but can also pollute the environment or eventually affect human public health. To date, human lactoferrin (hLF) and human lysozyme (hLZ) have been known as non-adaptive but interactive antimicrobial members and could act in concert against bacteria, which contribute to host defense. Therefore, their expression in pigs might be an alternative strategy for replacing antibiotics in the pig production industry. In our study, we produced hLF and hLZ bi-transgenic pigs and assessed the milk's antibacterial ability. Integration of both transgenes was confirmed by PCR and southern blot. Both the hLF and hLZ were expressed in the mammary gland of bi-transgenic pigs, as detected by western blotting. The expression amounts were 6.5 g/L for hLF and 1.1 mg/L for hLZ using ELISA. Interestingly, pig milk containing hLF and hLZ had synergistic antimicrobial activity. Our results suggest an alternative approach for avoiding the use of antibiotics in the pig industry, which would be of great benefit to the commercial swine production.
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The lactoferrin receptor may mediate the reduction of eosinophils in the duodenum of pigs consuming milk containing recombinant human lactoferrin. Biometals 2014; 27:1031-8. [DOI: 10.1007/s10534-014-9778-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Accepted: 07/16/2014] [Indexed: 01/09/2023]
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Lu D, Li Q, Wu Z, Shang S, Liu S, Wen X, Li Z, Wu F, Li N. High-level recombinant human lysozyme expressed in milk of transgenic pigs can inhibit the growth of Escherichia coli in the duodenum and influence intestinal morphology of sucking pigs. PLoS One 2014; 9:e89130. [PMID: 24586544 PMCID: PMC3931683 DOI: 10.1371/journal.pone.0089130] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Accepted: 01/20/2014] [Indexed: 11/19/2022] Open
Abstract
Lysozyme is often used as a feed additive and acts as an antimicrobial protein that enhances immune function and defends against pathogenic bacteria in pigs. In this study, we genetically added recombinant human lysozyme (rhLZ) to sow milk by somatic cell nuclear transfer and investigated whether the presence of recombinant human lysozyme can influence intestinal microbiota and morphology in sucking pigs. We generated transgenic cloned pigs and the first-generation hybrids (F1) produced high levels of rhLZ in milk. The average concentration of rhLZ was 116.34 ± 24.46 mg/L in the milk of F1 sows, which was 1500-fold higher than that of the native pig lysozyme. In vitro, it was demonstrated that rhLZ in milk of transgenic pigs had enzyme levels at 92,272 ± 26,413 U/mL. In a feeding experiment, a total of 40 newborn piglets were nursed by four transgenic sows and four sibling non-transgenic sows (F1), with five piglets per gilt. The piglets were allowed to nurse for 21 days and the sow milk was the only source of nutrition for the piglets. All piglets were slaughtered on postnatal day 22. Six types of bacteria were cultured and analyzed to detect the impact of rhLZ on gut microbiota. The number of Escherichia coli in the duodenum of piglets reared by transgenic sows was significantly decreased (p<0.001) and their villus height to crypt depth ratio in the intestine were increased due to the significant decrease of crypt depth in the duodenum, jejunum, and ileum (p<0.001). Together, we successfully generated rhLZ transgenic cloned pigs and elevated lysozyme level in nuring piglets. The results of the feeding experiments demonstrated that rhLZ-enhanced milk can inhibit the growth of E. coli in the duodenum and positively influence intestinal morphology without adversely affecting weight gain or piglet growth.
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Affiliation(s)
- Dan Lu
- The State Key Laboratory for Agro-biotechnology, China Agricultural University, Beijing, China
| | - Qiuyan Li
- The State Key Laboratory for Agro-biotechnology, China Agricultural University, Beijing, China
| | - Zhibin Wu
- The State Key Laboratory for Agro-biotechnology, China Agricultural University, Beijing, China
| | - Shengzhe Shang
- The State Key Laboratory for Agro-biotechnology, China Agricultural University, Beijing, China
| | - Shen Liu
- The State Key Laboratory for Agro-biotechnology, China Agricultural University, Beijing, China
| | - Xiao Wen
- Beijing Genfucare Biotechnology Company, Beijing, China
| | - Zhiyuan Li
- Beijing Genfucare Biotechnology Company, Beijing, China
| | - Fangfang Wu
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming, China
| | - Ning Li
- The State Key Laboratory for Agro-biotechnology, China Agricultural University, Beijing, China
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Consumption of transgenic milk containing the antimicrobials lactoferrin and lysozyme separately and in conjunction by 6-week-old pigs improves intestinal and systemic health. J DAIRY RES 2013; 81:30-7. [PMID: 24345426 DOI: 10.1017/s0022029913000575] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Lactoferrin and lysozyme are antimicrobial and immunomodulatory proteins produced in high quantities in human milk that aid in gastrointestinal (GI) health and have beneficial effects when supplemented separately and in conjunction in human and animal diets. Ruminants produce low levels of lactoferrin and lysozyme; however, there are genetically engineered cattle and goats that respectively secrete recombinant human lactoferrin (rhLF-milk), and human lysozyme (hLZ-milk) in their milk. Effects of consumption of rhLF-milk, hLZ-milk and a combination of rhLF-and hLZ-milk were tested on young pigs as an animal model for the GI tract of children. Compared with control milk-fed pigs, pigs fed a combination of rhLF and hLZ (rhLF+hLZ) milk had a significantly deeper intestinal crypts and a thinner lamina propria layer. Pigs fed hLZ-milk, rhLF-milk and rhLF+hLZ had significantly reduced mean corpuscular volume (MCV) and red blood cells (RBCs) were significantly increased in pigs fed hLZ-milk and rhLF-milk and tended to be increased in rhLF+hLZ-fed pigs, indicating more mature RBCs. These results support previous research demonstrating that pigs fed milk containing rhLF or hLZ had decreased intestinal inflammation, and suggest that in some parameters the combination of lactoferrin and lysozyme have additive effects, in contrast to the synergistic effects reported when utilising in-vitro models.
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Clark M, Murray JD, Maga EA. Assessing unintended effects of a mammary-specific transgene at the whole animal level in host and non-target animals. Transgenic Res 2013; 23:245-56. [PMID: 24214495 DOI: 10.1007/s11248-013-9768-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Accepted: 10/30/2013] [Indexed: 11/24/2022]
Abstract
Risk assessment in transgenic plants is intrinsically different than that for transgenic animals; however both require the verification of proper transgene function and in conjunction, an estimate of any unintended effects caused by expression of the transgene. This work was designed to gather data regarding methodologies to detect pleiotropic effects at the whole animal level using a line of transgenic goats that produce the antimicrobial protein human lysozyme (hLZ) in their milk with the goal of using the milk to treat childhood diarrhea. Metabolomics was used to determine the serum metabolite profile of both the host (lactating does) and non-target organism (kid goats raised on control or hLZ milk) prior to weaning (60 days), at weaning (90 days) and 1 month post-weaning (120 days). In addition, intestinal histology of the kid goats was also carried out. Histological analysis of intestinal segments of the pre-weaning group revealed significantly wider duodenal villi (p = 0.014) and significantly longer villi (p = 0.028) and deeper crypts (p = 0.030) in the ileum of kid goats consuming hLZ milk. Serum metabolomics was capable of detecting differences over time but revealed no significant differences in metabolites between control and hLZ fed kids after correction for false discovery rate. Serum metabolomics of control or hLZ lactating does showed only one significant difference in an unknown metabolite (q = 0.0422). The results as a whole indicate that consumption of hLZ milk results in positive or insignificant intestinal morphology and metabolic changes. This work contributes to the establishment of the safety and durability of the hLZ mammary-specific transgene.
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Affiliation(s)
- Merritt Clark
- Department of Animal Science, University of California, Davis, One Shields Ave, Davis, CA, 95616, USA
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Prola L, Nery J, Dumon H, Nguyen P, Masoero G, Mussa PP. Effect of dietary supplementation with lysozyme on coat quality and composition, haematological parameters and faecal quality in dogs. JOURNAL OF APPLIED ANIMAL RESEARCH 2013. [DOI: 10.1080/09712119.2013.782872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Oliver WT, Wells JE. Lysozyme as an alternative to antibiotics improves growth performance and small intestinal morphology in nursery pigs. J Anim Sci 2013; 91:3129-36. [PMID: 23572262 DOI: 10.2527/jas.2012-5782] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Lysozyme is a 1,4-β-N-acetylmuramidase that has antimicrobial properties. The objective of this experiment was to determine if lysozyme in nursery diets improved growth performance and gastrointestinal health of pigs weaned from the sow at 24 d of age. Two replicates of 96 pigs (192 total; 96 males, 96 females) were weaned from the sow at 24 d of age, blocked by BW and gender, and then assigned to 1 of 24 pens (4 pigs/pen). Each block was randomly assigned 1 of 3 dietary treatments for 28 d: control (two 14-d phases), control + antibiotics (carbadox/copper sulfate), or control + lysozyme (100 mg/kg diet). Pigs were weighed and blood sampled on d 0, 14, and 28 of treatment. Blood was analyzed for plasma urea nitrogen (PUN) and IgA. At 28 d, pigs were killed, and samples of jejunum and ileum were collected and fixed for intestinal morphology measurements. An additional jejunum sample was taken from the 12 pigs with the median BW per treatment to determine transepithelial electrical resistance (TER). Pigs consuming antibiotics or lysozyme grew at a faster rate than control pigs (0.433 ± 0.009 and 0.421 ± 0.008 vs. 0.398 ± 0.008 kg/d, respectively; P < 0.03), which resulted in heavier ending BW (20.00 ± 0.31, 19.8 ± 0.29, and 18.83 ± 0.32 kg, respectively; P < 0.03). Feed intake was not different (P > 0.48), but G:F was improved in pigs consuming antibiotics or lysozyme (0.756 ± 0.014, 0.750 ± 0.021, and 0.695 ± 0.019 kg/kg; P < 0.05). Immunoglobulin A (P < 0.03) and PUN (P < 0.01) increased during the experiment, regardless of dietary treatment (P > 0.48). Dietary treatment did not affect TER (P > 0.37), but gilts had lower TER compared with barrows (P < 0.04). No differences in villi height or crypt depth were observed in the ileum (P > 0.53). However, jejunum villi height was increased and crypt depth was decreased in pigs consuming antibiotics or lysozyme (P < 0.001), resulting in an increased villi height:crypt depth of 72% (P < 0.001). Thus, we concluded that lysozyme is a suitable alternative to carbadox/copper sulfate diets fed to pigs weaned from the sow at 24 d of age.
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Affiliation(s)
- W T Oliver
- USDA, ARS, U.S. Meat Animal Research Center, Clay Center, NE 68933-0166, USA.
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Cooper CA, Garas Klobas LC, Maga EA, Murray JD. Consuming transgenic goats' milk containing the antimicrobial protein lysozyme helps resolve diarrhea in young pigs. PLoS One 2013; 8:e58409. [PMID: 23516474 PMCID: PMC3596375 DOI: 10.1371/journal.pone.0058409] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Accepted: 02/06/2013] [Indexed: 01/13/2023] Open
Abstract
Childhood diarrhea is a significant problem in many developing countries and E. coli is a main causative agent of diarrhea in young children. Lysozyme is an antimicrobial protein highly expressed in human milk, but not ruminant milk, and is thought to help protect breastfeeding children against diarrheal diseases. We hypothesized that consumption of milk from transgenic goats which produce human lysozyme (hLZ-milk) in their milk would accelerate recovery from bacterial-induced diarrhea. Young pigs were used as a model for children and infected with enterotoxigenic E. coli. Once clinical signs of diarrhea developed, pigs were fed hLZ-milk or non-transgenic control goat milk three times a day for two days. Clinical observations and complete blood counts (CBC) were performed. Animals were euthanized and samples collected to assess differences in histology, cytokine expression and bacterial translocation into the mesenteric lymph node. Pigs consuming hLZ-milk recovered from clinical signs of infection faster than pigs consuming control milk, with significantly improved fecal consistency (p = 0.0190) and activity level (p = 0.0350). The CBC analysis showed circulating monocytes (p = 0.0413), neutrophils (p = 0.0219), and lymphocytes (p = 0.0222) returned faster to pre-infection proportions in hLZ-milk fed pigs, while control-fed pigs had significantly higher hematocrit (p = 0.027), indicating continuing dehydration. In the ileum, pigs fed hLZ-milk had significantly lower expression of pro-inflammatory cytokine IL-8 (p = 0.0271), longer intestinal villi (p<0.0001), deeper crypts (p = 0.0053), and a thinner lamina propria (p = 0.0004). These data demonstrate that consumption of hLZ-milk helped pigs recover from infection faster, making hLZ-milk an effective treatment of E. coli-induced diarrhea.
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Affiliation(s)
- Caitlin A. Cooper
- Department of Animal Science, University of California Davis, Davis, California, United States of America
| | - Lydia C. Garas Klobas
- Department of Animal Science, University of California Davis, Davis, California, United States of America
| | - Elizabeth A. Maga
- Department of Animal Science, University of California Davis, Davis, California, United States of America
| | - James D. Murray
- Department of Animal Science, University of California Davis, Davis, California, United States of America
- Department of Population Health and Reproduction, University of California Davis, Davis, California, United States of America
- * E-mail:
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Abstract
The composition of human milk is tailored to contribute to the development of the gastrointestinal (GI) tract of newborns and infants. Importantly, human milk contains the antimicrobial compounds lysozyme and lactoferrin that are thought to contribute to the formation of a health-promoting microbiota. As these protective factors are lacking in the milk of dairy animals, we genetically engineered goats expressing human lysozyme in their milk and have recently reported a new animal model to dissect out the role of milk components on gut microbiota formation. Using the pig as a more human-relevant animal model, we demonstrated that consumption of lysozyme-rich milk enriched the abundance of bacteria associated with GI health and decreased those associated with disease, much like human milk. This work demonstrated that the pig is a valid animal model for gut microbiome studies on the effects of dietary components on microbiota composition, host-microbe interactions and state of the intestine.
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Affiliation(s)
- Elizabeth A. Maga
- Department of Animal Science; University of California; Davis, CA USA,Correspondence to: Elizabeth A. Maga,
| | - Bart C. Weimer
- Department of Population Health and Reproduction; University of California; Davis, CA USA
| | - James D. Murray
- Department of Animal Science; University of California; Davis, CA USA,Department of Population Health and Reproduction; University of California; Davis, CA USA
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Consumption of transgenic cows’ milk containing human lactoferrin results in beneficial changes in the gastrointestinal tract and systemic health of young pigs. Transgenic Res 2012; 22:571-8. [DOI: 10.1007/s11248-012-9662-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Accepted: 09/22/2012] [Indexed: 11/25/2022]
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Carvalho EB, Maga EA, Quetz JS, Lima IFN, Magalhães HYF, Rodrigues FAR, Silva AVA, Prata MMG, Cavalcante PA, Havt A, Bertolini M, Bertolini LR, Lima AAM. Goat milk with and without increased concentrations of lysozyme improves repair of intestinal cell damage induced by enteroaggregative Escherichia coli. BMC Gastroenterol 2012; 12:106. [PMID: 22883300 PMCID: PMC3439704 DOI: 10.1186/1471-230x-12-106] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2012] [Accepted: 07/31/2012] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Enteroaggregative Escherichia coli (EAEC) causes diarrhea, malnutrition and poor growth in children. Human breast milk decreases disease-causing bacteria by supplying nutrients and antimicrobial factors such as lysozyme. Goat milk with and without human lysozyme (HLZ) may improve the repair of intestinal barrier function damage induced by EAEC. This work investigates the effect of the milks on intestinal barrier function repair, bacterial adherence in Caco-2 and HEp-2 cells, intestinal cell proliferation, migration, viability and apoptosis in IEC-6 cells in the absence or presence of EAEC. METHODS Rat intestinal epithelial cells (IEC-6, ATCC, Rockville, MD) were used for proliferation, migration and viability assays and human colon adenocarcinoma (Caco-2, ATCC, Rockville, MD) and human larynx carcinoma (HEp-2, ATCC, Rockville, MD) cells were used for bacterial adhesion assays. Goats expressing HLZ in their milk were generated and express HLZ in milk at concentration of 270 μg/ml. Cells were incubated with pasteurized milk from either transgenic goats expressing HLZ or non-transgenic control goats in the presence and absence of EAEC strain 042 (O44:H18). RESULTS Cellular proliferation was significantly greater in the presence of both HLZ transgenic and control goat milk compared to cells with no milk. Cellular migration was significantly decreased in the presence of EAEC alone but was restored in the presence of milk. Milk from HLZ transgenic goats had significantly more migration compared to control milk. Both milks significantly reduced EAEC adhesion to Caco-2 cells and transgenic milk resulted in less colonization than control milk using a HEp-2 assay. Both milks had significantly increased cellular viability as well as less apoptosis in both the absence and presence of EAEC. CONCLUSIONS These data demonstrated that goat milk is able to repair intestinal barrier function damage induced by EAEC and that goat milk with a higher concentration of lysozyme offers additional protection.
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Affiliation(s)
- Eunice B Carvalho
- Department of Physiology and Pharmacology & INCT-Biomedicine, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
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Consumption of lysozyme-rich milk can alter microbial fecal populations. Appl Environ Microbiol 2012; 78:6153-60. [PMID: 22752159 DOI: 10.1128/aem.00956-12] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Human milk contains antimicrobial factors such as lysozyme and lactoferrin that are thought to contribute to the development of an intestinal microbiota beneficial to host health. However, these factors are lacking in the milk of dairy animals. Here we report the establishment of an animal model to allow the dissection of the role of milk components in gut microbiota modulation and subsequent changes in overall and intestinal health. Using milk from transgenic goats expressing human lysozyme at 68%, the level found in human milk and young pigs as feeding subjects, the fecal microbiota was analyzed over time using 16S rRNA gene sequencing and the G2 Phylochip. The two methods yielded similar results, with the G2 Phylochip giving more comprehensive information by detecting more OTUs. Total community populations remained similar within the feeding groups, and community member diversity was changed significantly upon consumption of lysozyme milk. Levels of Firmicutes (Clostridia) declined whereas those of Bacteroidetes increased over time in response to the consumption of lysozyme-rich milk. The proportions of these major phyla were significantly different (P < 0.05) from the proportions seen with control-fed animals after 14 days of feeding. Within phyla, the abundance of bacteria associated with gut health (Bifidobacteriaceae and Lactobacillaceae) increased and the abundance of those associated with disease (Mycobacteriaceae, Streptococcaceae, Campylobacterales) decreased with consumption of lysozyme milk. This study demonstrated that a single component of the diet with bioactivity changed the gut microbiome composition. Additionally, this model enabled the direct examination of the impact of lysozyme on beneficial microbe enrichment versus detrimental microbe reduction in the gut microbiome community.
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Neville MC, Anderson SM, McManaman JL, Badger TM, Bunik M, Contractor N, Crume T, Dabelea D, Donovan SM, Forman N, Frank DN, Friedman JE, German JB, Goldman A, Hadsell D, Hambidge M, Hinde K, Horseman ND, Hovey RC, Janoff E, Krebs NF, Lebrilla CB, Lemay DG, MacLean PS, Meier P, Morrow AL, Neu J, Nommsen-Rivers LA, Raiten DJ, Rijnkels M, Seewaldt V, Shur BD, VanHouten J, Williamson P. Lactation and neonatal nutrition: defining and refining the critical questions. J Mammary Gland Biol Neoplasia 2012; 17:167-88. [PMID: 22752723 PMCID: PMC3428522 DOI: 10.1007/s10911-012-9261-5] [Citation(s) in RCA: 89] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2012] [Accepted: 06/06/2012] [Indexed: 01/15/2023] Open
Abstract
This paper resulted from a conference entitled "Lactation and Milk: Defining and refining the critical questions" held at the University of Colorado School of Medicine from January 18-20, 2012. The mission of the conference was to identify unresolved questions and set future goals for research into human milk composition, mammary development and lactation. We first outline the unanswered questions regarding the composition of human milk (Section I) and the mechanisms by which milk components affect neonatal development, growth and health and recommend models for future research. Emerging questions about how milk components affect cognitive development and behavioral phenotype of the offspring are presented in Section II. In Section III we outline the important unanswered questions about regulation of mammary gland development, the heritability of defects, the effects of maternal nutrition, disease, metabolic status, and therapeutic drugs upon the subsequent lactation. Questions surrounding breastfeeding practice are also highlighted. In Section IV we describe the specific nutritional challenges faced by three different populations, namely preterm infants, infants born to obese mothers who may or may not have gestational diabetes, and infants born to undernourished mothers. The recognition that multidisciplinary training is critical to advancing the field led us to formulate specific training recommendations in Section V. Our recommendations for research emphasis are summarized in Section VI. In sum, we present a roadmap for multidisciplinary research into all aspects of human lactation, milk and its role in infant nutrition for the next decade and beyond.
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Boulanger L, Passet B, Pailhoux E, Vilotte JL. Transgenesis applied to goat: current applications and ongoing research. Transgenic Res 2012; 21:1183-90. [DOI: 10.1007/s11248-012-9618-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2012] [Accepted: 04/09/2012] [Indexed: 10/28/2022]
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50
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May KD, Wells JE, Maxwell CV, Oliver WT. Granulated lysozyme as an alternative to antibiotics improves growth performance and small intestinal morphology of 10-day-old pigs1. J Anim Sci 2012; 90:1118-25. [DOI: 10.2527/jas.2011-4297] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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