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Ophélie B, Christelle R, Maxime R, Romuald R, Joëlle D. Chemerin abundance in egg white and its expression with receptors in extra-embryonic annexes of Pekin ducks: implications for embryo development. Poult Sci 2024; 103:103997. [PMID: 39002372 DOI: 10.1016/j.psj.2024.103997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 06/13/2024] [Accepted: 06/19/2024] [Indexed: 07/15/2024] Open
Abstract
Embryonic mortality is a significant problem in the commercial duck industry worldwide. Therefore, identification of new biomarkers for duck embryo development is necessary. In the chicken (order Galliformes), we previously showed that chemerin is a hormone locally produced by the reproductive tract in hens, particularly in the magnum area, leading to its accumulation in the egg white and within the embryo annexes during embryonic development. We therefore hypothesized that the chemerin concentration in egg white could be a biomarker of egg performance and reproductive parameters in Pekin ducks (order Anseriformes). Thus, we collected eggs from Pekin ducks over a 5-d period at three stages of the laying period (before the laying peak, after the laying peak, and at the end of the laying period) to measure the chemerin concentrations in egg white by enzyme-linked immunosorbent assay. The chemerin concentration in egg white decreased during the laying period and was not associated with reproductive parameters. We found negative correlations between the chemerin level in egg white and the albumen weight. Reverse-transcriptase quantitative polymerase chain reaction showed that chemerin and its three receptors CMKLR1, GPR1, and CCRL2 were expressed in the reproductive tract and within allantoic and amniotic annexes during embryo development. Chemerin concentrations strongly increased in amniotic fluid on embryonic day 16 (ED16) when the egg white was transferred into the amniotic sac. Finally, chemerin inhibition in egg white by in ovo injections of anti-chemerin antibodies (0.01, 0.1, and 1 µg) increased the embryo mortality rate. These data demonstrate the important role of the chemerin system during egg formation and embryo development in Pekin ducks, suggesting their potential use as biomarkers for determining the quality of poultry eggs and embryo development.
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Affiliation(s)
- Bernardi Ophélie
- SYSAAF-Syndicat des Sélectionneurs Avicoles et Aquacoles Français, Centre INRAE Val de Loire, Nouzilly F-37380, France; Centre National de la Recherche Scientifique, Institut Français du Cheval et de l'Equitation, Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement, Université de Tours, Physiologie de la Reproduction et des Comportements, Nouzilly F-37380, France
| | - Ramé Christelle
- Centre National de la Recherche Scientifique, Institut Français du Cheval et de l'Equitation, Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement, Université de Tours, Physiologie de la Reproduction et des Comportements, Nouzilly F-37380, France
| | - Reverchon Maxime
- SYSAAF-Syndicat des Sélectionneurs Avicoles et Aquacoles Français, Centre INRAE Val de Loire, Nouzilly F-37380, France
| | - Rouger Romuald
- SYSAAF-Syndicat des Sélectionneurs Avicoles et Aquacoles Français, Centre INRAE Val de Loire, Nouzilly F-37380, France
| | - Dupont Joëlle
- SYSAAF-Syndicat des Sélectionneurs Avicoles et Aquacoles Français, Centre INRAE Val de Loire, Nouzilly F-37380, France; Centre National de la Recherche Scientifique, Institut Français du Cheval et de l'Equitation, Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement, Université de Tours, Physiologie de la Reproduction et des Comportements, Nouzilly F-37380, France.
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Bernardi O, Fréville M, Ramé C, Reverchon M, Dupont J. Chemerin concentration in egg white in layer and broiler hens during the laying period for 2 successive generations. Poult Sci 2024; 103:103342. [PMID: 38141273 PMCID: PMC10784314 DOI: 10.1016/j.psj.2023.103342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 11/27/2023] [Accepted: 11/29/2023] [Indexed: 12/25/2023] Open
Abstract
The genetic selection progress in layers and broilers makes poultry production one of the fastest growing industries. Objectives of the breeding companies are the stability or the increase in the laying rate and the production of viable chicks. New biomarkers are necessary to improve reproductive and egg performances. Chemerin (Chem) produced by oviduct accumulates in egg white (EW). Here, we hypothesized that EW Chem concentration was dependent on the stage of laying and on the breed (layer vs. broiler). In addition, they could be associated to laying performance and fertility parameters. In breeding companies, we collected during 2 successive generations (G0 (mother) and G1 (daughter)) eggs from 100 layers and 100 broilers hens during 5 d at 3 stages: before, after laying peak and at the end of laying period. For each egg, the EW was sampled to measure Chem concentration by ELISA assay. In each generation at the end of laying period, magnums from oviduct, where the EG is formed, were collected in layers and broilers in order to investigate Chem differential expression by RT-qPCR between both breeds. Chem concentration in EW was dependent on the time of laying period and its profile was differently regulated in layers and broilers. Indeed, it increased at the end of laying in layers whereas it decreased after the laying peak in broilers. At the end of laying period, Chem concentration in EW was almost 2-fold higher in layers than in broilers and this was confirmed in both G0 and G1 generations at the Chem mRNA and protein levels in the magnum. For the 2 successive generations, Chem concentration in EW was negatively correlated with the laying rate and the fertility parameter in broiler hens whereas it was negatively correlated with the egg quality (weight of whole egg and weight of albumen) and positively with the fertility rate at some time of laying in layer hens. Taken together, the Chem concentration in EW could be a potential predictive tool for reproductive parameters in genetic selection.
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Affiliation(s)
- Ophélie Bernardi
- French Poultry and Aquaculture Breeders Technical Center, Centre INRAE Val de Loire, F-37380 Nouzilly, France; National Centre for Scientific Research, French Institute of Horse and Riding, Research for Agriculture Food and Environment, Tours University, Physiology of Reproduction and Behaviors, UMR85, F-37280 Nouzilly, France
| | - Mathias Fréville
- National Centre for Scientific Research, French Institute of Horse and Riding, Research for Agriculture Food and Environment, Tours University, Physiology of Reproduction and Behaviors, UMR85, F-37280 Nouzilly, France
| | - Christelle Ramé
- National Centre for Scientific Research, French Institute of Horse and Riding, Research for Agriculture Food and Environment, Tours University, Physiology of Reproduction and Behaviors, UMR85, F-37280 Nouzilly, France
| | - Maxime Reverchon
- French Poultry and Aquaculture Breeders Technical Center, Centre INRAE Val de Loire, F-37380 Nouzilly, France
| | - Joëlle Dupont
- National Centre for Scientific Research, French Institute of Horse and Riding, Research for Agriculture Food and Environment, Tours University, Physiology of Reproduction and Behaviors, UMR85, F-37280 Nouzilly, France.
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Bernardi O, Ramé C, Reverchon M, Dupont J. Expression of chemerin and its receptors in extra-embryonic annexes and role of chemerin and its GPR1 receptor in embryo development in layer and broiler hens. Poult Sci 2024; 103:103339. [PMID: 38118220 PMCID: PMC10753086 DOI: 10.1016/j.psj.2023.103339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 11/02/2023] [Accepted: 11/28/2023] [Indexed: 12/22/2023] Open
Abstract
Intensive genetic selection of broiler breeders and layer hens resulted in differences in the mechanisms of growth and also in cell metabolism during embryogenesis. Previous research has shown that an adipokine named chemerin and one of these receptors, CMKLR1 were potentially involved in broiler embryo development. Here, our objectives were 1) to compare the expression of chemerin and its receptors CMKLR1, GPR1, and CCRL2 and chemerin concentration in extra-embryonic annexes (allantoic and amniotic membranes and fluids and plasma) in broiler and layer fertile eggs during the development (embryonic day (ED) 7, 14, and 18) by RT-qPCR and specific chicken ELISA and 2) to investigate the role of chemerin and one of its receptors GPR1 in embryo development after in ovo injections of neutralizing antibodies against chicken chemerin and GPR1. We found that chemerin expression in amniotic membranes was higher in layer than broiler eggs at ED7 and ED14 whereas the expression of the 3 receptors was higher in layer than broiler in the allantoic membranes at ED14 and ED18. Chemerin concentration was more important in layer than broiler at ED14 and ED18 in amniotic liquid and at all the studied stages in blood plasma. We also showed positive correlation between amniotic chemerin concentration and chemerin amniotic membrane expression, chemerin plasma concentration and embryo body weight in both breeds. Finally, in ovo injection of chicken chemerin and GPR1 neutralizing antibodies increased embryo mortality in both layer and broiler eggs. Taken together, even if chemerin concentration and chemerin system expression in embryonic membranes are mainly higher expressed in layer than in broiler, chemerin potentially through GPR1 could promote embryo development in both breeds.
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Affiliation(s)
- Ophélie Bernardi
- French Poultry and Aquaculture Breeders Technical Center, Centre INRAE Val de Loire, F-37380 Nouzilly, France; National Centre for Scientific Research, French Horse and Riding Institute, National Research Institute for Agriculture, Food and Environment, Tours University, Physiology of Reproduction and Behaviors, UMR85, F-37380 Nouzilly, France
| | - Christelle Ramé
- National Centre for Scientific Research, French Horse and Riding Institute, National Research Institute for Agriculture, Food and Environment, Tours University, Physiology of Reproduction and Behaviors, UMR85, F-37380 Nouzilly, France
| | - Maxime Reverchon
- French Poultry and Aquaculture Breeders Technical Center, Centre INRAE Val de Loire, F-37380 Nouzilly, France
| | - Joëlle Dupont
- National Centre for Scientific Research, French Horse and Riding Institute, National Research Institute for Agriculture, Food and Environment, Tours University, Physiology of Reproduction and Behaviors, UMR85, F-37380 Nouzilly, France.
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Bernardi O, Bourdon G, Estienne A, Brossaud A, Ramé C, Reverchon M, Dupont J. Adipokines expression in reproductive tract, egg white and embryonic annexes in hen. Poult Sci 2023; 102:102908. [PMID: 37478623 PMCID: PMC10387612 DOI: 10.1016/j.psj.2023.102908] [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] [Received: 05/05/2023] [Revised: 06/24/2023] [Accepted: 06/27/2023] [Indexed: 07/23/2023] Open
Abstract
In mammals, molecules mainly secreted by white adipose tissue named adipokines are also synthetized locally in the reproductive tract and are able to influence reproductive functions. In avian species, previous studies indicated that the adipokine chemerin is highly abundant in the albumen, compared to the yolk and this was associated to high chemerin expression in the magnum. In addition, the authors observed that chemerin and its receptors are expressed by allantoic and amniotic membranes and chemerin is present in fluids during the embryo development. Here, we studied other adipokines, including adiponectin, visfatin, apelin, and adipolin in egg white and their known receptors in the active (egg-laying hen) and regressed (hen not laying) oviduct and embryonic annexes during embryo development. By using Western blot, RT-qPCR analysis and immunohistochemistry, we demonstrated the expression of different adipokines in the egg albumen (visfatin) and the reproductive tract (adiponectin, visfatin, apelin, adipolin, and their cognate receptors) according the position of egg in the oviduct. We showed that the expression of adipokines and adipokines receptors was strongly reduced in the regressed oviducts (arrested laying hen). Results indicated that visfatin and adiponectin appeared at ED11 to 14 and increased until ED18 in amniotic fluid whereas it was found from ED7 and was unchanged during embryo development in allantoic fluid. Taken together, adipokines and their receptors are expressed in the egg white, the reproductive tract and the embryonic annexes. Data obtained suggest important functions of theses metabolic hormones during the chicken embryo development. Thus, adipokines could be potential biomarkers to improve the embryo development.
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Affiliation(s)
- Ophélie Bernardi
- SYSAAF French Poultry and Aquaculture Breeders Technical Center, Research for Agriculture, Food and Environment Institute Val de Loire Center, F-37380 Nouzilly, France; French National Centre for Scientific Research, French Horse and Riding Institute, Research for Agriculture, Food and Environment Institute, Tours University, Physiology of Reproduction and Behavior Unit, F-37380 Nouzilly, France
| | - Guillaume Bourdon
- French National Centre for Scientific Research, French Horse and Riding Institute, Research for Agriculture, Food and Environment Institute, Tours University, Physiology of Reproduction and Behavior Unit, F-37380 Nouzilly, France
| | - Anthony Estienne
- French National Centre for Scientific Research, French Horse and Riding Institute, Research for Agriculture, Food and Environment Institute, Tours University, Physiology of Reproduction and Behavior Unit, F-37380 Nouzilly, France
| | - Adeline Brossaud
- French National Centre for Scientific Research, French Horse and Riding Institute, Research for Agriculture, Food and Environment Institute, Tours University, Physiology of Reproduction and Behavior Unit, F-37380 Nouzilly, France
| | - Christelle Ramé
- French National Centre for Scientific Research, French Horse and Riding Institute, Research for Agriculture, Food and Environment Institute, Tours University, Physiology of Reproduction and Behavior Unit, F-37380 Nouzilly, France
| | - Maxime Reverchon
- SYSAAF French Poultry and Aquaculture Breeders Technical Center, Research for Agriculture, Food and Environment Institute Val de Loire Center, F-37380 Nouzilly, France
| | - Joëlle Dupont
- French National Centre for Scientific Research, French Horse and Riding Institute, Research for Agriculture, Food and Environment Institute, Tours University, Physiology of Reproduction and Behavior Unit, F-37380 Nouzilly, France.
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