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Narushin VG, Romanov MN, Gressier L, Jacob E, Salamon A, Klein S, Kent JP. Shell temperature: How shall we tell if a still gosling is under the eggshell? Theriogenology 2024; 226:57-67. [PMID: 38850858 DOI: 10.1016/j.theriogenology.2024.05.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 05/22/2024] [Accepted: 05/30/2024] [Indexed: 06/10/2024]
Abstract
The present investigation was aimed at predicting a still (i.e., dead) vs. live embryo within a hatching goose egg by measuring the eggshell cooling rate. For this, we daily measured the temperature (T) values on the shell surface of goose eggs after they were removed from the incubator and during further natural cooling. T was recorded every 0.5 h for further 1.5 h of cooling. It was possible to recognize eggs with dead embryos using the combination of T, egg weight (W), and surface area (S). The resultant indicator (TS/W) was called specific temperature index (STI). The mathematical relationship using STI measurements between Days 8-13 facilitated 80 % correct identification of the eggs with dead embryos. Additionally, we derived mathematical dependencies for shell weight (Ws) and thickness (t) by utilizing the values of W, egg volume (V), S, the average T of all measurements taken, as well as the drop in T during 1.5 h of natural cooling. The key advantage of these parameters was their measurement and/or calculation by applying non-destructive methods. The integrated application of these parameters resulted in achieving high calculation accuracy as judged by correlation coefficients of 0.908 for Ws and 0.593 for t. These novel mathematical models have the potential to decrease hatching waste by predicting embryo viability. Our research will add to a toolkit for non-invasive egg assessment that is useful in the poultry industry, research on eggs, and engineering.
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Affiliation(s)
- Valeriy G Narushin
- Research Institute for Environment Treatment, Zaporizhya, Ukraine; Vita-Market Ltd, Zaporizhya, Ukraine.
| | - Michael N Romanov
- School of Biosciences, University of Kent, Canterbury, UK; L. K. Ernst Federal Research Centre for Animal Husbandry, Dubrovitsy, Podolsk, Moscow Oblast, Russia.
| | - Louis Gressier
- Institut de Génie Informatique et Industriel (IG2I), Centrale Lille, Lens, France; Ballyrichard House, Arklow, Co. Wicklow, Ireland.
| | - Elouann Jacob
- ENSIBS (Ecole Nationale Supérieure D'Ingénieurs de Bretagne-Sud), Université Bretagne-Sud, Lorient, France.
| | - Attila Salamon
- Department of Ethology, ELTE Eötvös Loránd University, Budapest, Hungary; ELTE NAP Canine Brain Research Group, Budapest, Hungary.
| | - Sabine Klein
- Institute of Farm Animal Genetics, Friedrich-Loeffler-Institut, Mariensee, 31535, Neustadt, Germany.
| | - John P Kent
- Ballyrichard House, Arklow, Co. Wicklow, Ireland.
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2
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Whittle RH, Kiarie EG, Ma DWL, Widowski TM. Feeding flaxseed to chicken hens changes the size and fatty acid composition of their chicks' brains. Front Physiol 2024; 15:1400611. [PMID: 38911324 PMCID: PMC11190958 DOI: 10.3389/fphys.2024.1400611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Accepted: 05/16/2024] [Indexed: 06/25/2024] Open
Abstract
Diets fed to commercial chicken breeders are high in n-6 fatty acids (n-6 FAs) and low in n-3 fatty acids (n-3 FAs). N-3 FAs are essential for embryonic brain development. In precocial birds, like chickens, brain development and brain n-3 FA accrual occur primarily before hatching. In two experiments, broiler and layer breeders were fed diets with or without flaxseed as the source of n-3 FAs from plant-based alpha-linolenic acid. Day-old broiler (n = 80) and layer (n = 96) offspring were dissected to calculate the percentage brain-to-body weight. Brain FA analyses from total lipid extracts were determined in the broiler (n = 24) and layer (n = 24) offspring brains, and the percentage FA composition and concentration (µg FAs per g brain) were calculated for each n-3 and n-6 FA. The brain size was only increased in broiler offspring from mothers fed flaxseed (χ2 = 9.22, p = 0.002). In layer offspring only, the maternal flaxseed diet increased the brain concentration and percentage of n-3 FAs and decreased n-6 FAs (p < 0.05). We showed that feeding flaxseed to mothers increased the brain size in broiler offspring and altered brain FA composition in layer offspring. These results may have implications for poultry and other captive bird species fed diets low in n-3 FAs.
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Affiliation(s)
- Rosemary H. Whittle
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
- Campbell Centre for the Study of Animal Welfare, University of Guelph, Guelph, ON, Canada
| | - Elijah G. Kiarie
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| | - David W. L. Ma
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON, Canada
| | - Tina M. Widowski
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
- Campbell Centre for the Study of Animal Welfare, University of Guelph, Guelph, ON, Canada
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3
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Petit A, Tesseraud S, Collin A, Couroussé N, Berri C, Bihan-Duval EL, Métayer-Coustard S. Ontogeny of hepatic metabolism in two broiler lines divergently selected for the ultimate pH of the Pectoralis major muscle. BMC Genomics 2024; 25:438. [PMID: 38698322 PMCID: PMC11067279 DOI: 10.1186/s12864-024-10323-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 04/18/2024] [Indexed: 05/05/2024] Open
Abstract
BACKGROUND Nutrient availability during early stages of development (embryogenesis and the first week post-hatch) can have long-term effects on physiological functions and bird metabolism. The embryo develops in a closed structure and depends entirely on the nutrients and energy available in the egg. The aim of this study was to describe the ontogeny of pathways governing hepatic metabolism that mediates many physiological functions in the pHu + and pHu- chicken lines, which are divergently selected for the ultimate pH of meat, a proxy for muscle glycogen stores, and which differ in the nutrient content and composition of eggs. RESULTS We identified eight clusters of genes showing a common pattern of expression between embryonic day 12 (E12) and day 8 (D8) post-hatch. These clusters were not representative of a specific metabolic pathway or function. On E12 and E14, the majority of genes differentially expressed between the pHu + and pHu- lines were overexpressed in the pHu + line. Conversely, the majority of genes differentially expressed from E18 were overexpressed in the pHu- line. During the metabolic shift at E18, there was a decrease in the expression of genes linked to several metabolic functions (e.g. protein synthesis, autophagy and mitochondrial activity). At hatching (D0), there were two distinct groups of pHu + chicks based on hierarchical clustering; these groups also differed in liver weight and serum parameters (e.g. triglyceride content and creatine kinase activity). At D0 and D8, there was a sex effect for several metabolic pathways. Metabolism appeared to be more active and oriented towards protein synthesis (RPS6) and fatty acid β-oxidation (ACAA2, ACOX1) in males than in females. In comparison, the genes overexpressed in females were related to carbohydrate metabolism (SLC2A1, SLC2A12, FoxO1, PHKA2, PHKB, PRKAB2 and GYS2). CONCLUSIONS Our study provides the first detailed description of the evolution of different hepatic metabolic pathways during the early development of embryos and post-hatching chicks. We found a metabolic orientation for the pHu + line towards proteolysis, glycogen degradation, ATP synthesis and autophagy, likely in response to a higher energy requirement compared with pHu- embryos. The metabolic orientations specific to the pHu + and pHu- lines are established very early, probably in relation with their different genetic background and available nutrients.
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Affiliation(s)
| | | | - Anne Collin
- INRAE, Université de Tours, BOA, Nouzilly, 37380, France
| | | | - Cécile Berri
- INRAE, Université de Tours, BOA, Nouzilly, 37380, France
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Contriciani RE, Grade CVC, Buzzatto-Leite I, da Veiga FC, Ledur MC, Reverter A, Alexandre PA, Cesar ASM, Coutinho LL, Alvares LE. Phenotypic divergence between broiler and layer chicken lines is regulated at the molecular level during development. BMC Genomics 2024; 25:168. [PMID: 38347479 PMCID: PMC10863267 DOI: 10.1186/s12864-024-10083-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 02/02/2024] [Indexed: 02/15/2024] Open
Abstract
BACKGROUND Understanding the molecular underpinnings of phenotypic variations is critical for enhancing poultry breeding programs. The Brazilian broiler (TT) and laying hen (CC) lines exhibit striking differences in body weight, growth potential, and muscle mass. Our work aimed to compare the global transcriptome of wing and pectoral tissues during the early development (days 2.5 to 3.5) of these chicken lines, unveiling disparities in gene expression and regulation. RESULTS Different and bona-fide transcriptomic profiles were identified for the compared lines. A similar number of up- and downregulated differentially expressed genes (DEGs) were identified, considering the broiler line as a reference. Upregulated DEGs displayed an enrichment of protease-encoding genes, whereas downregulated DEGs exhibited a prevalence of receptors and ligands. Gene Ontology analysis revealed that upregulated DEGs were mainly associated with hormone response, mitotic cell cycle, and different metabolic and biosynthetic processes. In contrast, downregulated DEGs were primarily linked to communication, signal transduction, cell differentiation, and nervous system development. Regulatory networks were constructed for the mitotic cell cycle and cell differentiation biological processes, as their contrasting roles may impact the development of distinct postnatal traits. Within the mitotic cell cycle network, key upregulated DEGs included CCND1 and HSP90, with central regulators being NF-κB subunits (RELA and REL) and NFATC2. The cell differentiation network comprises numerous DEGs encoding transcription factors (e.g., HOX genes), receptors, ligands, and histones, while the main regulatory hubs are CREB, AR and epigenetic modifiers. Clustering analyses highlighted PIK3CD as a central player within the differentiation network. CONCLUSIONS Our study revealed distinct developmental transcriptomes between Brazilian broiler and layer lines. The gene expression profile of broiler embryos seems to favour increased cell proliferation and delayed differentiation, which may contribute to the subsequent enlargement of pectoral tissues during foetal and postnatal development. Our findings pave the way for future functional studies and improvement of targeted traits of economic interest in poultry.
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Affiliation(s)
- Renata Erbert Contriciani
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil
| | - Carla Vermeulen Carvalho Grade
- Instituto Latino-Americano de Ciências da Vida e da Natureza, Universidade Federal da Integração Latino-Americana (UNILA), Foz do Iguaçu, Brazil
| | - Igor Buzzatto-Leite
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil
| | - Fernanda Cristina da Veiga
- Department of Animal Science, Luiz de Queiroz College of Agriculture, University of São Paulo (USP), Piracicaba, Brazil
| | | | - Antonio Reverter
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Agriculture and Food, Brisbane, QLD, Australia
| | - Pamela Almeida Alexandre
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Agriculture and Food, Brisbane, QLD, Australia
| | - Aline Silva Mello Cesar
- Department of Agri-Food Industry, Food and Nutrition, Luiz de Queiroz College of Agriculture, University of São Paulo (USP), Piracicaba, Brazil
| | - Luiz Lehmann Coutinho
- Department of Animal Science, Luiz de Queiroz College of Agriculture, University of São Paulo (USP), Piracicaba, Brazil.
| | - Lúcia Elvira Alvares
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil.
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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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6
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Halgrain M, Bernardet N, Hennequet-Antier C, Réhault-Godbert S. Sex-specific transcriptome of the chicken chorioallantoic membrane. Genomics 2024; 116:110754. [PMID: 38061480 DOI: 10.1016/j.ygeno.2023.110754] [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: 08/23/2023] [Revised: 11/17/2023] [Accepted: 12/03/2023] [Indexed: 12/23/2023]
Abstract
Dimorphism between male and female embryos has been demonstrated in many animal species, including chicken species. Likewise, extraembryonic membranes such as the chorioallantoic membrane (CAM) are likely to exhibit a sex-specific profile. Analysis of the previously published RNA-seq data of the chicken CAM sampled at two incubation times, revealed 783 differentially expressed genes between the CAM of male and female embryos. The expression of some of these genes is sex-dependant only at one or other stage of development, while 415 genes are sex-dependant at both developmental stages. These genes include well-known sex-determining and sex-differentiation genes (DMRT1, HEGM, etc.), and are mainly located on sex chromosomes. This study provides evidence that gene expression of extra-embryonic membranes is differentially regulated between male and female embryos. As such, a better characterisation of associated mechanisms should facilitate the identification of new sex-specific biomarkers.
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Affiliation(s)
| | | | - Christelle Hennequet-Antier
- Université Paris-Saclay, INRAE, MaIAGE, Jouy-en-Josas 78350, France; Université Paris-Saclay, INRAE, BioinfOmics, MIGALE Bioinformatics Facility, Jouy-en-Josas 78350, France
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7
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Meteyake HT, Collin A, Bilalissi A, Dassidi N, Assion MEP, Tona K. Naked neck gene and intermittent thermal manipulations during embryogenesis improve posthatch performance and thermotolerance in slow-growing chickens under tropical climates. Poult Sci 2023; 102:102912. [PMID: 37499617 PMCID: PMC10393816 DOI: 10.1016/j.psj.2023.102912] [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: 05/03/2023] [Revised: 06/25/2023] [Accepted: 06/27/2023] [Indexed: 07/29/2023] Open
Abstract
Many studies have shown that thermal manipulations during the incubation (TMI) and naked neck gene (Na) positively affect heat-stressed broilers' thermotolerance, hatching process, and posthatch performance. Their combination could increase the beneficial effect on broilers reared under natural tropical climatic conditions. The aim of this study was to investigate the effects of the Na gene and TMI on hatching and posthatch performance of slow-growing broilers under tropical climates. The study included 1,200 hatching eggs from 2 different crosses: 1) females and males, both with a normal or fully feathered neck (na na group), and 2) females (with a normal neck) and males (bare neck) (Na na group), incubated in similar conditions until d 7. Thereafter, they were assigned to 3 subgroups for each cross: the control group (C) was incubated at standard incubation conditions (37.8°C, 60% RH). The TMI-1 group was subjected to TMI-1 (T = 38.5°C, RH = 65%, E10-18, 6 h/d) and TMI-2 group to TMI-2 (T = 39.5°C, RH = 65%, E7-16, 12 h/d). Between 450 and 504 h of incubation, eggs were checked for hatching events. During the posthatch phase, chicks from each incubation subgroups (Na na-C, Na na-TMI-1, Na na-TMI-2, na na-C, na na-TMI-1, na na-TMI-2) were raised for 12 wk at a tropical natural ambient temperature. Hatchability, hatching time, chick's temperature, final body weight (FBW), and feed conversion ratio (FCR) were determined. The results revealed that the Na gene reduced (P ˂ 0.05) hatchability. The control group had the highest mortality rate compared to TMI-1 and TMI-2 groups. There was an interaction between genotype and TMI on incubation duration, hatching weight, chick quality, FBW, and FCR (P ˂ 0.05). In conclusion, the Na gene influenced the effects of thermal manipulation. TMI-1 combined with Na gene improved the productive performances of broilers in a tropical climate.
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Affiliation(s)
- Hèzouwè T Meteyake
- Laboratory of Poultry Sciences, Regional Center of Excellence on Poultry Science, University of Lome, B.P. 1515 Lome, Togo.
| | - Anne Collin
- INRAE, University of Tours, 37380 Nouzilly, France
| | - Abidi Bilalissi
- Laboratory of Poultry Sciences, Regional Center of Excellence on Poultry Science, University of Lome, B.P. 1515 Lome, Togo
| | - Nideou Dassidi
- Abéché Graduate National Institute of Sciences and Technology , B.P. 130 Abeché, Chad
| | - Mauril E P Assion
- Laboratory of Poultry Sciences, Regional Center of Excellence on Poultry Science, University of Lome, B.P. 1515 Lome, Togo
| | - Kokou Tona
- Laboratory of Poultry Sciences, Regional Center of Excellence on Poultry Science, University of Lome, B.P. 1515 Lome, Togo
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Erensoy K, Sarıca M. Fast growing broiler production from genetically different pure lines in Turkey. 1. Parental traits: growth, feed intake, reproduction, and hatching traits. Trop Anim Health Prod 2022; 54:322. [PMID: 36161536 DOI: 10.1007/s11250-022-03319-z] [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: 05/21/2022] [Accepted: 09/14/2022] [Indexed: 11/26/2022]
Abstract
The aim of the present study was to reveal the trends in age-related growth, feed intake, reproduction, and hatchability traits in 5 pure line (PL) breeders (3 dam [A1: slow-feathering, A2: fast-feathering, A3: slow-feathering] and 2 sire [B1: fast-feathering, B2: fast-feathering]) and their reciprocal two-way cross parent stock (PS) breeders (6 female [A1♂ × A2♀; A1♂ × A3♀; A2♂ × A1♀; A2♂ × A3♀; A3♂ × A1♀; A3♂ × A2♀] and 2 male [B1♂ × B2♀; B2♂ × B1♀]) and to identify heterotic effects in two-way cross PS combinations showing superiority over PL breeders. In the rearing period, 60 females and 15 males in the each PL group, 120 females in each female PS and 120 males in each male PS breeders, and 40 females and 5 males were used in each PL and PS genotype in the laying period. Body weight (BW), average daily feed intake (ADFI), reproductive traits (age at first egg [AFE], age at sexual maturity [ASM], egg number, weekly and total %Lay, egg weight, egg mass), hatching traits (fertility, hatchability of fertile [HOF] and set [HOS] and embryonic mortality), and heterosis (%) values for some traits were assesed. Both males and females of PLs and PSs had different BW at 4 and 8 weeks of age (P < 0.01), but had similar BW from 12 to 24 weeks of age. The A2, B1, and B2 hens had a higher BW (nearly 4000 g) than the others at 31 weeks of age (P < 0.01), and B2 hens showed a BW of more than 5000 g at 64 weeks (P < 0.001). Weekly ADFI per female in rearing, laying, and overall period was not different between groups. The A1 (179 days), A3 (183 days), two-way cross (from 175.5 to 185.5 days) hens started laying at a similar age and earlier than B1 (184 days), A2 (192 days), and B2 (194 days) hens. From AFE to 64 weeks, %Lay was the highest in the A1 line (69.7%), lowest in the B1 (45.3%) and B2 (48.8%) line, and between 56.9 and 64.8% in PS breeder hens. The PS eggs tended to have higher fertility, HOF, and HOS, and less embryonic mortality compared to PL eggs. Negative and low heterosis for AFE was observed in PS eggs, while positive heterosis for fertility, HOF, and HOS was generally observed in four-way hybrid eggs. The highest heterosis for the 64-week cumulative egg number was observed in A3 × A2 hens. Our study results show that mating of B1 × B2 males with A3 × A2 females seems more favorable in terms of higher egg or chick production. However, more knowledge is also needed for the overall efficiency of each PS, including the final performance of its hybrids.
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Affiliation(s)
- Kadir Erensoy
- Department of Animal Science, Agricultural Faculty, Ondokuz Mayis University, 55139, Samsun, Turkey.
| | - Musa Sarıca
- Department of Animal Science, Agricultural Faculty, Ondokuz Mayis University, 55139, Samsun, Turkey
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Akbari Moghaddam Kakhki R, Kiarie EG. Effects of feeding ISA brown and Shaver white layer breeders with sources of n-3 fatty acids on hatching egg profiles, apparent embryonic uptake of egg components, and body composition of day-old chicks. CANADIAN JOURNAL OF ANIMAL SCIENCE 2021. [DOI: 10.1139/cjas-2020-0026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Effects of feeding ISA brown and Shaver white breeders sources of n-3 fatty acids (FA) on egg components, apparent embryonic uptake (AEU) of egg components, and hatching body composition were examined. A total of 240 females and 30 males per each strain were fed either: (1) control (CON); (2) CON + 1% of dried microalgae (DMA), as a source of docosahexaenoic acid; or (3) CON + 2.60% of dry extruded product consisting of full-fat flaxseed (FFF), as a source of α-linolenic acid for 30 d. Eggs were incubated and the residual yolks (RY) sampled at hatch for AEU of dry matter (DM), minerals, and organic matter (OM). Feeding n-3 FA sources reduced the AEU of OM and minerals resulting in a higher ratio of RY to body weight (P = 0.002). Feeding FFF increased body fat and decreased lean in Shaver white hatchlings compared with CON (P < 0.05). The body mineral was reduced by feeding DMA compared with other treatments (P < 0.05). The change in body composition in response to feeding of n-3 sources was associated with the change in AEU of DM, OM, and minerals, not the concentration of these components in the yolk.
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Affiliation(s)
- Reza Akbari Moghaddam Kakhki
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Elijah G. Kiarie
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
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10
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Rahman A, Syduzzaman M, Khaliduzzaman A, Fujitani S, Kashimori A, Suzuki T, Ogawa Y, Kondo N. Non-destructive sex-specific monitoring of early embryonic growth rate in light brown broiler eggs using light transmission and its correlation with hatching time and chick weight. Br Poult Sci 2020; 62:147-155. [PMID: 32902332 DOI: 10.1080/00071668.2020.1820952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
1. Monitoring early embryonic growth rate (EGR) has significant economic and animal welfare benefits. This study focuses on monitoring sex-specific early EGR using light transmission, and correlating this with hatching time and chick weight. For broiler eggs in particular, spectral masking of the light brown eggshells needed to be addressed. This was done using longitudinal visible transmission spectroscopy combined with eggshell colour image analysis. 2. Prior to incubation, colour images of eggs were captured followed by daily measurements of transmission spectra of eggs from days one to nine of incubation. The sex of the eggs was subsequently verified 2 d after hatching. 3. To accurately and sensitively determine sex differences in EGR using light transmission, while minimising interference from eggshell colour and thickness, the ratio of longitudinal transmissions was determined to be most effective at 575 and 610 nm. 3. Embryonic growth was detectable from d 3 (72 h) of incubation, 24 h earlier than previously reported lateral transmission measurements. However, at this time, low blood levels meant that no significant sex-differences (P > 0.05) for the mean T575/T610 ratio were detectable. This may have been due, in part, to spectral masking from the light brown eggshells. At d 7, female embryos had a significantly lower (P < 0.05) mean T575/T610 ratio than males. 4. Although the T575/T610 ratio had low correlations with hatching time and hatch-weight of chicks, this could be a good starting point for further non-destructive investigations for such predictions. 5. In conclusion, the methodology had the sensitivity to differentiate sex-specific early EGR in broiler eggs, even with pigmented eggshells, and has the potential to advance precision hatchery management and poultry research.
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Affiliation(s)
- A Rahman
- Graduate School of Agriculture, Kyoto University , Sakyo-ku, Japan.,Faculty of Agricultural Engineering and Technology, Bangladesh Agricultural University , Mymensingh, Bangladesh
| | - M Syduzzaman
- Graduate School of Agriculture, Kyoto University , Sakyo-ku, Japan.,Faculty of Applied Science and Technology, Jashore University of Science and Technology , Jashore, Bangladesh
| | - A Khaliduzzaman
- Graduate School of Agriculture, Kyoto University , Sakyo-ku, Japan.,Faculty of Agricultural Engineering and Technology, Sylhet Agricultural University , Sylhet, Bangladesh
| | | | - A Kashimori
- Research and Development, NABEL Co. Ltd , Minami-ku, Japan
| | - T Suzuki
- Graduate School of Agriculture, Kyoto University , Sakyo-ku, Japan
| | - Y Ogawa
- Graduate School of Agriculture, Kyoto University , Sakyo-ku, Japan
| | - N Kondo
- Graduate School of Agriculture, Kyoto University , Sakyo-ku, Japan
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11
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van der Wagt I, de Jong IC, Mitchell MA, Molenaar R, van den Brand H. A review on yolk sac utilization in poultry. Poult Sci 2020; 99:2162-2175. [PMID: 32241502 PMCID: PMC7587635 DOI: 10.1016/j.psj.2019.11.041] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 11/14/2019] [Accepted: 11/14/2019] [Indexed: 12/15/2022] Open
Abstract
During incubation, embryonic growth and development are dependent on nutrients deposited in the egg. The content of the yolk can be transferred to the embryo in 2 ways: directly into the intestine via the yolk stalk or through the highly vascularized yolk sac membrane. It has been suggested that, as a result of genetic selection and improved management, the increase in posthatch growth rate and concurrently the increase in metabolic rate of broiler chickens during the last 50 yr has also increased embryonic metabolism. A higher metabolic rate during incubation would imply a lower residual yolk weight and possibly lower energy reserve for the hatchling. This might affect posthatch development and performance. This review examined scientific publications published between 1930 and 2018 to compare residual yolk weight at hatch, metabolic heat production, and yolk utilization throughout incubation. This review aimed to investigate 1) whether or not residual yolk weight and composition has been changed during the 88-yr period considered and 2) which abiotic and biotic factors affect yolk utilization in poultry during incubation and the early posthatch period. It can be concluded that 1) residual yolk weight and the total solid amount of the residual yolk at hatch seem to be decreased in the recent decades. It cannot be concluded whether the (lack of) differences between old and modern strains are due to genetic selection, changed management and incubation conditions, or moment of sampling (immediately after hatch or at pulling). It is remarkable that with the genetic progress and improved management and incubation conditions over the last 88 yr, effects on yolk utilization efficiency and embryonic metabolic heat production are limited; 2) factors specially affecting residual yolk weight at hatch include egg size and incubation temperature, whereas breeder age has more influence on nutrient composition of the residual yolk.
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Affiliation(s)
- Ilonka van der Wagt
- Adaptation Physiology Group, Wageningen University and Research, Wageningen, The Netherlands
| | - Ingrid C de Jong
- Wageningen Livestock Research, Wageningen University and Research, Wageningen, The Netherlands
| | - Malcolm A Mitchell
- Animal Behaviour and Welfare, Animal and Veterinary Science Research Group, SRUC, Roslin Institute Building, Easter Bush, Edinburgh EH25 9RG, United Kingdom
| | - Roos Molenaar
- Adaptation Physiology Group, Wageningen University and Research, Wageningen, The Netherlands
| | - Henry van den Brand
- Adaptation Physiology Group, Wageningen University and Research, Wageningen, The Netherlands.
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12
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Akbari Moghaddam Kakhki R, Ma DWL, Price KR, Moats JR, Karrow NA, Kiarie EG. Enriching ISA brown and Shaver white breeder diets with sources of n-3 polyunsaturated fatty acids increased embryonic utilization of docosahexaenoic acid. Poult Sci 2020; 99:1038-1051. [PMID: 32036961 PMCID: PMC7587772 DOI: 10.1016/j.psj.2019.09.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 09/24/2019] [Accepted: 09/28/2019] [Indexed: 12/24/2022] Open
Abstract
There is limited information on feeding egg-type chick breeders n-3 polyunsaturated fatty acids (PUFA) and its impact on hatching egg quality and embryonic fatty acid (FA) utilization. We investigated the effects of feeding brown and white egg-type chick breeders diets containing sources of n-3 PUFA on egg composition, apparent embryonic FA utilization, and intestinal FA transporter in hatchlings. Twenty-six-week-old ISA brown and Shaver white breeders were fed either 1) control (CON); 2) CON + 1% of microalgae (DMA, Aurantiochytrium limacinum) fermentation product, as a source of docosahexaenoic acid (DHA); or 3) CON + 2.60% of coextruded full-fat flaxseed and pulse mixture (FFF, 1:1 wt/wt) as a source of α-linolenic acid (ALA). Test diets had similar total n-3 and n-6:n-3 ratio. Eggs were hatched, and residual yolk (RY) samples taken for FA analyses. Apparent embryonic FA utilization was calculated by subtracting concentration of FA in RY from concentration of FA in yolk before incubation. There was an interaction between strains and diets (P < 0.05) on DHA in phospholipid and triglyceride fractions of yolk. Both n-3 PUFA sources increased DHA to a greater extent in Shaver white than in ISA brown. The interactive effect of strains and diets (P = 0.019) on embryonic utilization of ALA was such that DMA and FFF reduced ALA utilization, and this pattern was more prevalent in Shaver white birds than in ISA brown birds. There was no interaction between strains and diets on DHA utilization (P > 0.05). Embryos from hens fed n-3 PUFA sources used less total FA in phospholipid fraction (P < 0.001), and they preferentially used more DHA than CON embryos. Shaver white embryos used more (P < 0.05) ALA and DHA than ISA brown embryos. Although data suggested Shaver white had higher propensity of depositing DHA than ISA brown, irrespective of strain, feeding n-3 PUFA modified embryonic pattern of FA utilization toward utilization of DHA.
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Affiliation(s)
| | - David W L Ma
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON, Canada
| | | | | | - Neil A Karrow
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| | - Elijah G Kiarie
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada.
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13
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van den Brand H, van de Kraats SJF, Sözcü A, Jöerissen R, Heetkamp MJW, van den Anker I, Ooms M, Kemp B. Both the rooster line and incubation temperature affect embryonic metabolism and hatchling quality in laying hen crossbreds. Poult Sci 2019; 98:2632-2640. [PMID: 30690584 PMCID: PMC6527512 DOI: 10.3382/ps/pez007] [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: 10/11/2018] [Accepted: 01/07/2019] [Indexed: 11/20/2022] Open
Abstract
Effects of 3 eggshell temperatures (EST; 36.7. 37.8, and 38.9°C) in 2 genetic laying hen crossbreds (AB and BB; same hen line, different rooster line) on embryonic metabolism and hatchling quality were investigated. EST were applied from day 14.5 of incubation (E14.5) until hatching. The experiment consisted of 6 consecutive batches with eggs weighing between 59 and 61 g. Heat production was determined continuously from E14.5 onward. In fresh eggs, yolk weight tended to be higher (Δ = 0.28 g; P = 0.08) in the AB crossbred than in the BB crossbred. At E14.5 and E18.5, yolk-free body mass (YFBM) and residual yolk (RY) weight did not differ between genetic crossbred and EST. Hatching time after the start of incubation was not affected by genetic crossbred, but was longer in the 36.7°C (517 h) than in the 38.9°C (505 h), with 37.8°C in between (506 h). At 6 h after hatching, no differences between crossbreds were found for chicken quality parameters, such as chicken weight, chicken length, RY, YFBM, and organ weights, but heart weight was higher in the 36.7°C EST than in the other 2 EST (Δ = 0.24 to 0.30% of YFBM, P = 0.005). Intestinal weight was higher at 36.7°C EST than at 38.9°C EST (Δ = 0.79% of YFBM; P = 0.02), with 37.8°C EST in between. Heat production between E14.5 and E18.5 was higher in the AB crossbred than in the BB crossbred (Δ = 2.61%, P < 0.001) and regardless of crossbred higher at an EST of 38.9°C than at other 2 EST (Δ = 3.59% on average; P < 0.001). Hatchling quality determined at pulling (E21.5) was not affected by EST, but AB chickens were lighter (Δ = 0.46 g; P = 0.03), had less red hocks (Δ = 0.03; P = 0.02), more red beaks (Δ = 0.10; P < 0.001), and a higher (worse) navel score (Δ = 0.11; P < 0.001) than BB chickens. It can be concluded that not only incubation temperature, but also the rooster line appears to play a role in layer crossbred embryo metabolism and hatchling quality.
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Affiliation(s)
- H van den Brand
- Adaptation Physiology Group, Department of Animal Sciences, Wageningen University, 6700 AH, Wageningen, the Netherlands
| | - S J F van de Kraats
- Adaptation Physiology Group, Department of Animal Sciences, Wageningen University, 6700 AH, Wageningen, the Netherlands
| | - A Sözcü
- Department of Animal Sciences, Uludag University, 16059, Bursa, Turkey
| | - R Jöerissen
- Hendrix Genetics, Boxmeer, 5831 CK, the Netherlands
| | - M J W Heetkamp
- Adaptation Physiology Group, Department of Animal Sciences, Wageningen University, 6700 AH, Wageningen, the Netherlands
| | - I van den Anker
- Adaptation Physiology Group, Department of Animal Sciences, Wageningen University, 6700 AH, Wageningen, the Netherlands
| | - M Ooms
- Adaptation Physiology Group, Department of Animal Sciences, Wageningen University, 6700 AH, Wageningen, the Netherlands
| | - B Kemp
- Adaptation Physiology Group, Department of Animal Sciences, Wageningen University, 6700 AH, Wageningen, the Netherlands
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14
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Hamidu JA, Torres CA, Johnson-Dahl ML, Korver DR. Physiological response of broiler embryos to different incubator temperature profiles and maternal flock age during incubation. 1. Embryonic metabolism and day-old chick quality. Poult Sci 2018; 97:2934-2946. [PMID: 29788504 DOI: 10.3382/ps/pey089] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Accepted: 02/22/2018] [Indexed: 12/18/2022] Open
Abstract
Broiler strain, maternal age, and incubation temperature influence embryo metabolism. Hatching eggs were obtained from young (Y; 28 to 34 wk, $\bar{\rm x}$ = 31.2 wk), mid (M; 36 to 45 wk, $\bar{\rm x}$ = 40.5 wk) and old (O; 49 to 54 wk, $\bar{\rm x}$ = 51.4 wk) Ross 708 (n = 88; Experiment 1) and Ross 308 [(n = 45; Experiment 2: (Y; 25 to 34 wk, $\bar{\rm x}$ = 30.5 wk), (M; 35 to 44 wk, $\bar{\rm x}$ = 40.2 wk), and (O; 49 to 54 wk, $\bar{\rm x}$ = 51.6 wk)] breeders. Eggs were stored for 2 to 4 d (18°C, 73% RH), and incubated for 14 d at 37.5°C and 56% RH. At 15 d (E15), 8 fertile eggs per flock age were incubated in individual metabolic chambers at 36.0, 36.5, 37.0, or 37.5°C until E21.5. Each temperature was repeated one additional time. O2 consumption and CO2 production were used to calculate embryonic heat production (EHP). Embryo temperature was measured as eggshell temperature (EST). Initial egg weight was used as a covariate; significance was assessed at P < 0.05. In Ross 708, daily EHP tended to be higher in M and O than Y treatments at E16; EHP of M was higher than Y and O eggs at E18; M and O were higher than O eggs at E19. Incubation at 37.0°C resulted in the highest EHP from E15 to E21, except at E17. Embryos at 37.5°C had reduced EHP beyond E17. Daily EST from E15 to E21 was higher at 37.5 and 37.0°C than at 36.0 and 36.5°C. In Ross 308, daily EST was highest at 37.5°C except at E20. Incubation temperature and EST were highly correlated (R2 = 0.90 to 0.89; P < 0.001). Ross 708 chicks were longer and hatched earlier at 37.0°C than at 36.0 and 37.5°C. EST and EHP increased with incubation temperature in Ross 708. In Ross 308, maternal flock age and incubation temperature did not impact EHP. However, EST was highest at 37.5°C except at E20. Ross 708 was more sensitive to incubation temperature than Ross 308.
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Affiliation(s)
- J A Hamidu
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada T6G 2P5
| | - C A Torres
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada T6G 2P5
| | - M L Johnson-Dahl
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada T6G 2P5
| | - D R Korver
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada T6G 2P5
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15
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Onbaşılar E, Kahraman M, Ahlat O, Güngör Ö, Çalık A, Taban S, Yalçın S. Differences in egg nutrient availability and embryo development in white layer breeder genotypes. Poult Sci 2017; 96:3600-3607. [DOI: 10.3382/ps/pex188] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 06/15/2017] [Indexed: 12/22/2022] Open
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16
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Faure M, Guibert E, Crochet S, Chartrin P, Brillard JP, Collin A, Froment P. Differential proliferation and metabolic activity of Sertoli cells in the testes of broiler and layer breeder chickens. Poult Sci 2017; 96:2459-2470. [DOI: 10.3382/ps/pex025] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Indexed: 12/17/2022] Open
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17
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Buzala M, Janicki B. Review: Effects of different growth rates in broiler breeder and layer hens on some productive traits. Poult Sci 2016; 95:2151-9. [PMID: 27194733 DOI: 10.3382/ps/pew173] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/05/2016] [Indexed: 12/26/2022] Open
Abstract
Genetic selection that has been carried out for several dozen years has led to significant progress in poultry production by improving productive traits and increasing the profitability of broiler breeder and layer hen production. After hatching, broilers and layers differ mainly in feed intake, growth rate, efficiency of nutrient utilization, and development of muscles and adipose tissue. A key role can be played by hormonal mechanisms of appetite control in broilers and layers. The paper discusses the consequences of different growth rates resulting from long-term genetic selection on feed intake, efficiency of nutrient utilization, and development of muscles and adipose tissue, with particular consideration of the hormonal mechanisms of appetite control in broilers and layers. The information presented in this review paper shows that it would be worth comparing these issues in a meta-analysis.
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Affiliation(s)
- M Buzala
- Department of Animal Biochemistry and Biotechnology, UTP University of Science and Technology, Mazowiecka 28, 85-084 Bydgoszcz, Poland
| | - B Janicki
- Department of Animal Biochemistry and Biotechnology, UTP University of Science and Technology, Mazowiecka 28, 85-084 Bydgoszcz, Poland
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18
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Chen MX, Li XG, Yan HC, Wang XQ, Gao CQ. Effect of egg weight on composition, embryonic growth, and expression of amino acid transporter genes in yolk sac membranes and small intestines of the domestic pigeon (Columba livia). Poult Sci 2016; 95:1425-32. [PMID: 26957627 DOI: 10.3382/ps/pew044] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 01/06/2016] [Indexed: 11/20/2022] Open
Abstract
The objective of this study was to investigate the effect of egg weight on the composition of the egg, the growth of the embryo, and the expression of amino acid transporter genes in the yolk sac membranes and small intestines of the domestic pigeon (Columba livia). A total of 240 fertilized eggs were collected and divided into two groups based on the weight of the eggs, light (LE) and heavy (HE). The composition of 20 eggs from each group was measured, and the remaining eggs were weighed and placed in an incubator. On embryonic days (E) 9, 11, 13, and 15 and day of hatch (DOH), 15 embryos/hatchlings from each group were measured for embryonic growth, and samples were collected. The HE had heavier yolk and albumen weights than the LE (P < 0.01). Compared with the LE, the HE had heavier yolk-free embryonic body and yolk sac weights from E13 to DOH (P < 0.05). Additionally, the HE had larger yolk sac membrane weights from E13 to E15 (P < 0.05) and had more residual yolk sac content on DOH than those of the LE (P < 0.01). The yolk absorption was greater for the HE than for the LE from E11 to E13 (P < 0.05). Furthermore, the abundance of CAT2 and PepT1 mRNA in the yolk sac membranes was greater in the HE than in the LE on E13 (P < 0.05). Compared with the LE, the gene expression of EAAT2 in the intestine on E13 was greater in the HE, whereas the expression of EAAT3 was lower in the HE (P < 0.05). Taken together, our results suggest that egg weight influenced the composition of the eggs, embryonic development, and expression of amino acid transporter genes in the yolk sac membranes and small intestines of pigeon embryos.
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Affiliation(s)
- M X Chen
- College of Animal Science, South China Agricultural University/Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture/Guangdong Provincial Key Laboratory of Agro-Animal Genomics/South China Collaborative Innovation Center for Poultry Disease Control and Product Safety, Guangzhou, 510642, P.R. China
| | - X G Li
- College of Animal Science, South China Agricultural University/Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture/Guangdong Provincial Key Laboratory of Agro-Animal Genomics/South China Collaborative Innovation Center for Poultry Disease Control and Product Safety, Guangzhou, 510642, P.R. China
| | - H C Yan
- College of Animal Science, South China Agricultural University/Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture/Guangdong Provincial Key Laboratory of Agro-Animal Genomics/South China Collaborative Innovation Center for Poultry Disease Control and Product Safety, Guangzhou, 510642, P.R. China
| | - X Q Wang
- College of Animal Science, South China Agricultural University/Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture/Guangdong Provincial Key Laboratory of Agro-Animal Genomics/South China Collaborative Innovation Center for Poultry Disease Control and Product Safety, Guangzhou, 510642, P.R. China
| | - C Q Gao
- College of Animal Science, South China Agricultural University/Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture/Guangdong Provincial Key Laboratory of Agro-Animal Genomics/South China Collaborative Innovation Center for Poultry Disease Control and Product Safety, Guangzhou, 510642, P.R. China
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19
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Nangsuay A, Meijerhof R, van den Anker I, Heetkamp MJW, Kemp B, van den Brand H. Development and nutrient metabolism of embryos from two modern broiler strains. Poult Sci 2015; 94:2546-54. [PMID: 26240395 DOI: 10.3382/ps/pev234] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Accepted: 06/30/2015] [Indexed: 11/20/2022] Open
Abstract
A progressive selection for broiler live and processing performance traits has changed broiler growth patterns during the post hatch period. However, limited information is available to understand whether changes have also occurred during the embryonic stages. This study aims to examine influences of broiler strain on nutrient availability, embryonic development, and nutrient metabolism during incubation. Hatching eggs of Ross 308 and Cobb 500 fast feathering were selected from breeder flocks aged 43 to 46 weeks at an egg weight range of 60 to 63 g. Eggs were obtained in 2 batches, 120 eggs per strain per batch. For each batch, 20 eggs per strain were used to determine egg composition and nutrient availability. The remaining eggs were incubated separately in one of 2 climate respiration chambers at an eggshell temperature of 37.8°C. The results showed that Ross 308 eggs had a higher yolk:albumen ratio with 0.9 g more yolk and 0.7 g less albumen than Cobb 500. Albumen + yolk of Ross 308 eggs had a higher dry matter (Δ = 0.24 g) and crude fat (Δ = 0.23 g) than that of Cobb 500 eggs, but a similar amount of crude protein. Albumen and yolk of Ross 308 eggs had a higher energy content (Δ = 8.9 kJ) compared to Cobb 500 eggs. At 3 h after hatch, Ross 308 chicks were 0.2 cm longer and had a 0.6 g heavier yolk free body mass (YFBM) than Cobb 500 chicks. During incubation, Ross 308 embryos used 13.9 kJ more energy than Cobb 500, and the efficiency of converting energy used to YFBM (EYFB) was approximately 7.6% lower compared to Cobb 500. Ross 308 chicks hatched approximately 4 h later and had less hepatic glycogen (Δ = 5 mg) than Cobb 500 chicks. It can be concluded that, Cobb 500 and Ross 308 differ in egg nutrient availability and have different trajectories for embryonic development and nutrient metabolism during incubation.
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Affiliation(s)
- A Nangsuay
- Adaptation Physiology Group, Department of Animal Science, Wageningen University, PO Box 338, 6700 AH, Wageningen, the Netherlands
| | - R Meijerhof
- Poultry Performance Plus, Kleine Enkweg 1, 7383 DB Voorst, The Netherlands
| | - I van den Anker
- Adaptation Physiology Group, Department of Animal Science, Wageningen University, PO Box 338, 6700 AH, Wageningen, the Netherlands
| | - M J W Heetkamp
- Adaptation Physiology Group, Department of Animal Science, Wageningen University, PO Box 338, 6700 AH, Wageningen, the Netherlands
| | - B Kemp
- Adaptation Physiology Group, Department of Animal Science, Wageningen University, PO Box 338, 6700 AH, Wageningen, the Netherlands
| | - H van den Brand
- Adaptation Physiology Group, Department of Animal Science, Wageningen University, PO Box 338, 6700 AH, Wageningen, the Netherlands
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