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Zhang X, Zhang J, Huang T, Wang X, Su J, He J, Shi N, Wang Y, Li J. SSTR2 Mediates the Inhibitory Effect of SST/CST on Lipolysis in Chicken Adipose Tissue. Animals (Basel) 2024; 14:1034. [PMID: 38612272 PMCID: PMC11010918 DOI: 10.3390/ani14071034] [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: 02/07/2024] [Revised: 03/14/2024] [Accepted: 03/26/2024] [Indexed: 04/14/2024] Open
Abstract
Somatostatin shows an anti-lipolytic effect in both chickens and ducks. However, its molecular mediator remains to be identified. Here, we report that somatostatin type 2 receptor (SSTR2) is expressed at a high level in chicken adipose tissue. In cultured chicken adipose tissue, the inhibition of glucagon-stimulated lipolysis by somatostatin was blocked by an SSTR2 antagonist (CYN-154086), supporting an SSTR2-mediated anti-lipolytic effect. Furthermore, a significant pro-proliferative effect was detected in SST28-treated immortalized chicken preadipocytes (ICP-1), and this cell proliferative effect may be mediated through the MAPK/ERK signaling pathway activated by SSTR2. In summary, our results demonstrate that SSTR2 may regulate adipose tissue development by affecting the number and volume of adipocytes in chickens.
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Affiliation(s)
- Xiao Zhang
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610017, China
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, College of Life Sciences, Sichuan University, Chengdu 610017, China
| | - Jiannan Zhang
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610017, China
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, College of Life Sciences, Sichuan University, Chengdu 610017, China
| | - Tianjiao Huang
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610017, China
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, College of Life Sciences, Sichuan University, Chengdu 610017, China
| | - Xinglong Wang
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610017, China
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, College of Life Sciences, Sichuan University, Chengdu 610017, China
| | - Jiancheng Su
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610017, China
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, College of Life Sciences, Sichuan University, Chengdu 610017, China
| | - Jiliang He
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610017, China
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, College of Life Sciences, Sichuan University, Chengdu 610017, China
| | - Ningkun Shi
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610017, China
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, College of Life Sciences, Sichuan University, Chengdu 610017, China
| | - Yajun Wang
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610017, China
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, College of Life Sciences, Sichuan University, Chengdu 610017, China
| | - Juan Li
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610017, China
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, College of Life Sciences, Sichuan University, Chengdu 610017, China
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Hedrick ED, Matulka RA, Conboy-Schmidt L, May KA. Evaluation of anti-Fel d 1 IgY ingredient for pet food on growth performance in kittens. Front Vet Sci 2024; 11:1355390. [PMID: 38505000 PMCID: PMC10948519 DOI: 10.3389/fvets.2024.1355390] [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: 12/13/2023] [Accepted: 02/22/2024] [Indexed: 03/21/2024] Open
Abstract
Introduction The domestic cat (Felis catus) is one of the most common pets. Worldwide, approximately one in five adults are sensitive to cat allergens. The major cat allergen is the secretoglobulin Fel d 1, which is primarily produced in the salivary and sebaceous glands. Chickens produce IgY antibodies, which are similar in structure to mammalian IgG. When chickens are exposed to Fel d 1, anti-Fel d 1-specific IgY (AFD1) is produced and is naturally concentrated in egg yolk. The aim of this study was to evaluate the tolerability, effects on growth and food consumption, and potential adverse effects of a chicken egg product ingredient containing AFD1 in kittens. Methods This was a blinded, controlled study. Twenty-seven (27) eight-week old kittens were randomly assigned to three feeding groups containing 0 ppm AFD1 (Group 0), 8 ppm AFD1 (Group 1), and 16 ppm AFD1 (Group 2) for 84 days. Veterinary exams and bloodwork were performed on Day 42 and Day 84, and body weight and body condition score (BCS) were monitored weekly. Results Throughout the study, there were no signs of nutritional deficiency or adverse clinical events in any of the subjects. Administration of a chicken egg product ingredient containing AFD1 in the diet (whether in coating or combination of coating and top dress) had no significant effect on body weight nor food consumption, and all subjects maintained a healthy Body Condition Score (BCS) throughout the study. Moreover, there were no biologically significant differences in the mean clinical chemistry and hematology parameters. Discussion This study demonstrated that a diet formulated to contain up to 16 ppm AFD1, included in the coating and the top-dress of dry kitten food, was well tolerated, promoted adequate growth, and exhibited no adverse effects.
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Racicot KJ, Ham JR, Augustine JK, Henriksen R, Wright D, Iwaniuk AN. A Comparison of Telencephalon Composition among Chickens, Junglefowl, and Wild Galliforms. BRAIN, BEHAVIOR AND EVOLUTION 2024; 99:13-24. [PMID: 38368854 DOI: 10.1159/000537844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 02/08/2024] [Indexed: 02/20/2024]
Abstract
INTRODUCTION Domestication is the process of modifying animals for human benefit through selective breeding in captivity. One of the traits that often diverges is the size of the brain and its constituent regions; almost all domesticated species have relatively smaller brains and brain regions than their wild ancestors. Although the effects of domestication on the brain have been investigated across a range of both mammal and bird species, almost nothing is known about the neuroanatomical effects of domestication on the world's most common bird: the chicken (Gallus gallus). METHODS We compared the quantitative neuroanatomy of the telencephalon of white leghorn chickens with red junglefowl, their wild counterpart, and several wild galliform species. We focused specifically on the telencephalon because telencephalic regions typically exhibit the biggest differences in size in domesticate-wild comparisons. RESULTS Relative telencephalon size was larger in chickens than in junglefowl and ruffed grouse (Bonasa umbellus). The relative size of telencephalic regions did not differ between chickens and junglefowl, but did differ in comparison with ruffed grouse. Ruffed grouse had larger hyperpallia and smaller entopallial, nidopallial, and striatal volumes than chickens and junglefowl. Multivariate analyses that included an additional three wild grouse species corroborated these findings: chicken and junglefowl have relatively larger nidopallial and striatal volumes than grouse. Conversely, the mesopallial and hyperpallial volumes tended to be relatively smaller in chickens and junglefowl. CONCLUSION From this suite of comparisons, we conclude that chickens do not follow a pattern of widespread decreases in telencephalic region sizes that is often viewed as typical of domestication. Instead, chickens have undergone a mosaic of changes with some regions increasing and others decreasing in size, and there are few differences between chickens and junglefowl.
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Affiliation(s)
- Kelsey J Racicot
- Department of Neuroscience, University of Lethbridge, Lethbridge, Alberta, Canada
| | - Jackson R Ham
- Department of Neuroscience, University of Lethbridge, Lethbridge, Alberta, Canada
| | - Jacqueline K Augustine
- Department of Evolution, Ecology, and Organismal Biology, The Ohio State University at Lima, Lima, Ohio, USA
| | - Rie Henriksen
- AVIAN Behavioural Genomics and Physiology Group, IFM Biology, Linköping University, Linkoping, Sweden
| | - Dominic Wright
- AVIAN Behavioural Genomics and Physiology Group, IFM Biology, Linköping University, Linkoping, Sweden
| | - Andrew N Iwaniuk
- Department of Neuroscience, University of Lethbridge, Lethbridge, Alberta, Canada
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Youm DJ, Ko BJ, Kim D, Park M, Won S, Lee YH, Kim B, Seol D, Chai HH, Lim D, Jeong C, Kim H. The idiosyncratic genome of Korean long-tailed chicken as a valuable genetic resource. iScience 2023; 26:106236. [PMID: 36915682 PMCID: PMC10006692 DOI: 10.1016/j.isci.2023.106236] [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: 11/03/2022] [Revised: 11/28/2022] [Accepted: 02/15/2023] [Indexed: 02/19/2023] Open
Abstract
Today, breeds with ornamental traits such as exceptionally long tail feathers are economically valuable. However, the genetic basis of long-tail feathers is yet to be understood. To provide better understanding of long tail feathers, we sequenced Korean long-tailed chicken (KLC) genomes and compared them with genomes of other chicken breeds. We first analyzed the genome structure of KLC and its genomic relationship with other chickens and observed unique characteristics. Subsequently, we searched for genomic regions under selection. Feather keratin 1-like enriched region and several genes were found to have novel putative functions and effects on the long tail trait in KLC. Our findings support the value of KLC as a unique genetic resource and cast light on the genetic basis of long tail traits in avian species. We expect this novel knowledge to provide new genomic evidence and options for designing and implementing genetic improvements of ornamental chicken productivity through precision crossbreeding aids.
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Affiliation(s)
- Dong-Jae Youm
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Byung June Ko
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Donghee Kim
- School of Biological Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Myeongkyu Park
- Interdisciplinary Program in Bioinformatics, Seoul National University, Seoul 08826, Republic of Korea
| | - Sohyoung Won
- Interdisciplinary Program in Bioinformatics, Seoul National University, Seoul 08826, Republic of Korea
- eGnome, Inc, Seoul 05836, Republic of Korea
| | - Young Ho Lee
- Interdisciplinary Program in Bioinformatics, Seoul National University, Seoul 08826, Republic of Korea
| | - Bongsang Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
- eGnome, Inc, Seoul 05836, Republic of Korea
| | - Donghyeok Seol
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Han-Ha Chai
- Animal Genomics & Bioinformatics Division, National Institute of Animal Science, RDA 1500, Wanju 55365, Republic of Korea
| | - Dajeong Lim
- Animal Genomics & Bioinformatics Division, National Institute of Animal Science, RDA 1500, Wanju 55365, Republic of Korea
| | - Choongwon Jeong
- School of Biological Sciences, Seoul National University, Seoul 08826, Republic of Korea
- Corresponding author
| | - Heebal Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
- Interdisciplinary Program in Bioinformatics, Seoul National University, Seoul 08826, Republic of Korea
- eGnome, Inc, Seoul 05836, Republic of Korea
- Corresponding author
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Al Hakeem WG, Acevedo Villanueva KY, Selvaraj RK. The Development of Gut Microbiota and Its Changes Following C. jejuni Infection in Broilers. Vaccines (Basel) 2023; 11:vaccines11030595. [PMID: 36992178 DOI: 10.3390/vaccines11030595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/22/2023] [Accepted: 03/03/2023] [Indexed: 03/08/2023] Open
Abstract
The gut is home to more than millions of bacterial species. The gut bacteria coexist with the host in a symbiotic relationship that can influence the host’s metabolism, nutrition, and physiology and even module various immune functions. The commensal gut microbiota plays a crucial role in shaping the immune response and provides a continuous stimulus to maintain an activated immune system. The recent advancements in high throughput omics technologies have improved our understanding of the role of commensal bacteria in developing the immune system in chickens. Chicken meat continues to be one of the most consumed sources of protein worldwide, with the demand expected to increase significantly by the year 2050. Yet, chickens are a significant reservoir for human foodborne pathogens such as Campylobacter jejuni. Understanding the interaction between the commensal bacteria and C. jejuni is essential in developing novel technologies to decrease C. jejuni load in broilers. This review aims to provide current knowledge of gut microbiota development and its interaction with the immune system in broilers. Additionally, the effect of C. jejuni infection on the gut microbiota is addressed.
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Affiliation(s)
- Walid Ghazi Al Hakeem
- Department of Poultry Science, College of Agricultural and Environmental Sciences, University of Georgia, Athens, GA 30602, USA
| | - Keila Y Acevedo Villanueva
- Department of Poultry Science, College of Agricultural and Environmental Sciences, University of Georgia, Athens, GA 30602, USA
| | - Ramesh K Selvaraj
- Department of Poultry Science, College of Agricultural and Environmental Sciences, University of Georgia, Athens, GA 30602, USA
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Taheri S, Saedi N, Zerehdaran S, Javadmanesh A. Identification of selection signatures in Capra hircus and Capra aegagrus in Iran. Anim Sci J 2023; 94:e13864. [PMID: 37560768 DOI: 10.1111/asj.13864] [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: 06/19/2022] [Revised: 04/09/2023] [Accepted: 05/17/2023] [Indexed: 08/11/2023]
Abstract
Identification of selection signatures may provide a better understanding of domestication process and candidate genes contributing to this process. In this study, two populations of domestic and wild goats from Iran were analyzed to identify selection signatures. RSB, iHS, and XP-EHH statistics were used in order to identify robust selection signatures in the goat genome. Genotype data of domestic and wild goats from the NextGen project was used. The data was related to 18 Capra aegagrus (wild goat) and 20 Capra hircus (domestic goat) from Iran. The iHS method indicated 675 and 441 selection signatures in C. aegagrus and C. hircus, respectively. RSB and XP-EHH methods showed about 370 and 447 selection signatures in C. aegagrus and C. hircus, respectively. These selection signatures were mainly associated with milk production, fleece trait, mammary epithelial cells, reproduction, and immune system.
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Affiliation(s)
- Sadegh Taheri
- Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Naghmeh Saedi
- Centre for Quantitative Genetics and Genomics, Aarhus University, Tjele, Denmark
| | - Saeed Zerehdaran
- Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Ali Javadmanesh
- Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
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Núñez‐León D, Nagashima H, Sánchez‐Villagra MR. Chondrocranial variation in chicken domestication. JOURNAL OF EXPERIMENTAL ZOOLOGY PART B: MOLECULAR AND DEVELOPMENTAL EVOLUTION 2022; 338:505-515. [DOI: 10.1002/jez.b.23177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 08/09/2022] [Accepted: 09/01/2022] [Indexed: 11/18/2022]
Affiliation(s)
- Daniel Núñez‐León
- Paleontological Institute and Museum University of Zurich Zürich Switzerland
| | - Hiroshi Nagashima
- Division of Anatomy Niigata University Graduate School of Medical and Dental Sciences Niigata Japan
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Herrera-Castillo CM, Geiger M, Núñez-León D, Nagashima H, Gebhardt-Henrich S, Toscano M, Sanchez-Villagra MR. Skeletal variation in bird domestication: limb proportions and sternum in chicken, with comparisons to mallard ducks and Muscovy ducks. PeerJ 2022; 10:e13229. [PMID: 35502208 PMCID: PMC9055999 DOI: 10.7717/peerj.13229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 03/16/2022] [Indexed: 01/14/2023] Open
Abstract
Background Domestication, including selective breeding, can lead to morphological changes of biomechanical relevance. In birds, limb proportions and sternum characteristics are of great importance and have been studied in the past for their relation with flight, terrestrial locomotion and animal welfare. In this work we studied the effects of domestication and breed formation in limb proportions and sternum characteristics in chicken (Gallus gallus), mallard ducks (Anas plathyrhynchos) and Muscovy ducks (Cairina moschata). Methods First, we quantified the proportional length of three long bones of the forelimb (humerus, radius, and carpometacarpus) and the hind limb (femur, tibiotarsus, and tarsometatarsus) in domestic chickens, mallard ducks, and Muscovy ducks and their wild counterparts. For this, we took linear measurements of these bones and compared their proportions in the wild vs. the domestic group in each species. In chicken, these comparisons could also be conducted among different breeds. We then evaluated the proportional differences in the context of static and ontogenetic allometry. Further, we compared discrete sternum characteristics in red jungle fowl and chicken breeds. In total, we examined limb bones of 287 specimens and keel bones of 63 specimens. Results We found a lack of significant change in the proportions of limb bones of chicken and Muscovy duck due to domestication, but significant differences in the case of mallard ducks. Variation of evolvability, allometric scaling, and heterochrony may serve to describe some of the patterns of change we report. Flight capacity loss in mallard ducks resulting from domestication may have a relation with the difference in limb proportions. The lack of variation in proportions that could distinguish domestic from wild forms of chicken and Muscovy ducks may reflect no selection for flight capacity during the domestication process in these groups. In chicken, some of the differences identified in the traits discussed are breed-dependent. The study of the sternum revealed that the condition of crooked keel was not unique to domestic chicken, that some sternal characteristics were more frequent in certain chicken breeds than in others, and that overall there were no keel characteristics that are unique for certain chicken breeds. Despite some similar morphological changes identified across species, this study highlights the lack of universal patterns in domestication and breed formation.
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Affiliation(s)
| | - Madeleine Geiger
- Palaeontological Institute and Museum, University of Zurich, Zurich, Switzerland
| | - Daniel Núñez-León
- Palaeontological Institute and Museum, University of Zurich, Zurich, Switzerland
| | - Hiroshi Nagashima
- Division of Gross Anatomy and Morphogenesis, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Sabine Gebhardt-Henrich
- Center for Proper Housing: Poultry and Rabbits (ZTHZ), Animal Welfare Division, Veterinary Public Health Institute, University of Bern, Bern, Switzerland
| | - Michael Toscano
- Center for Proper Housing: Poultry and Rabbits (ZTHZ), Animal Welfare Division, Veterinary Public Health Institute, University of Bern, Bern, Switzerland
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Flores-Santin J, Burggren WW. Beyond the Chicken: Alternative Avian Models for Developmental Physiological Research. Front Physiol 2021; 12:712633. [PMID: 34744759 PMCID: PMC8566884 DOI: 10.3389/fphys.2021.712633] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 09/13/2021] [Indexed: 12/23/2022] Open
Abstract
Biomedical research focusing on physiological, morphological, behavioral, and other aspects of development has long depended upon the chicken (Gallus gallus domesticus) as a key animal model that is presumed to be typical of birds and generally applicable to mammals. Yet, the modern chicken in its many forms is the result of artificial selection more intense than almost any other domesticated animal. A consequence of great variation in genotype and phenotype is that some breeds have inherent aberrant physiological and morphological traits that may show up relatively early in development (e.g., hypertension, hyperglycemia, and limb defects in the broiler chickens). While such traits can be useful as models of specific diseases, this high degree of specialization can color general experimental results and affect their translational value. Against this background, in this review we first consider the characteristics that make an animal model attractive for developmental research (e.g., accessibility, ease of rearing, size, fecundity, development rates, genetic variation, etc.). We then explore opportunities presented by the embryo to adult continuum of alternative bird models, including quail, ratites, songbirds, birds of prey, and corvids. We conclude by indicating that expanding developmental studies beyond the chicken model to include additional avian groups will both validate the chicken model as well as potentially identify even more suitable avian models for answering questions applicable to both basic biology and the human condition.
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Affiliation(s)
- Josele Flores-Santin
- Facultad de Ciencias, Biologia, Universidad Autónoma del Estado de Mexico, Toluca, Mexico
| | - Warren W Burggren
- Developmental Integrative Biology Research Group, Department of Biological Sciences, University of North Texas Denton, Denton, TX, United States
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Rachtanapun P, Homsaard N, Kodsangma A, Leksawasdi N, Phimolsiripol Y, Phongthai S, Khemacheewakul J, Seesuriyachan P, Chaiyaso T, Chotinan S, Jantrawut P, Ruksiriwanich W, Wangtueai S, Sommano SR, Tongdeesoontorn W, Jantanasakulwong K. Effect of Egg-Coating Material Properties by Blending Cassava Starch with Methyl Celluloses and Waxes on Egg Quality. Polymers (Basel) 2021; 13:polym13213787. [PMID: 34771344 PMCID: PMC8587928 DOI: 10.3390/polym13213787] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 10/26/2021] [Accepted: 10/29/2021] [Indexed: 11/25/2022] Open
Abstract
An egg-coating material was developed to extend the shelf-life and freshness of eggs by blending cassava starch (CS) with gelling agents and waxes. The effects of the properties of this egg coating on egg quality were investigated. Hydroxypropyl methylcellulose (HPMC), carboxymethyl cellulose (CMC), beeswax, and paraffin wax were used. CS blended with low-molecular-weight paraffin (Paraffin(L)) and CMC coating material displayed a tensile strength of 4 MPa, 34% elongation at break, 0.0039 g day−1 m−2 water vapor permeability, and a water contact angle of 89° at 3 min. Eggs coated with CS/CMC/Paraffin(L) solutions had a Haugh unit value of 72 (AA grade) and exhibited a weight loss of 2.4% in 4 weeks. CMC improved the compatibility of CS and Paraffin(L). This improvement and the hydrophobicity of Paraffin(L) provided suitable mechanical and water-resistance properties to the coating material that helped to maintain the quality of the coated AA-grade eggs with low weight loss for 4 weeks.
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Affiliation(s)
- Pornchai Rachtanapun
- School of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, Mae-Hea, Mueang, Chiang Mai 50100, Thailand; (P.R.); (N.H.); (A.K.); (N.L.); (Y.P.); (S.P.); (J.K.); (P.S.); (T.C.)
- Center of Excellence in Materials Science and Technology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
- Cluster of Agro Bio-Circular-Green Industry (Agro BCG), Chiang Mai University, Chiang Mai 50100, Thailand; (S.C.); (P.J.); (W.R.); (S.W.); (S.R.S.)
| | - Nattagarn Homsaard
- School of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, Mae-Hea, Mueang, Chiang Mai 50100, Thailand; (P.R.); (N.H.); (A.K.); (N.L.); (Y.P.); (S.P.); (J.K.); (P.S.); (T.C.)
| | - Araya Kodsangma
- School of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, Mae-Hea, Mueang, Chiang Mai 50100, Thailand; (P.R.); (N.H.); (A.K.); (N.L.); (Y.P.); (S.P.); (J.K.); (P.S.); (T.C.)
| | - Noppol Leksawasdi
- School of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, Mae-Hea, Mueang, Chiang Mai 50100, Thailand; (P.R.); (N.H.); (A.K.); (N.L.); (Y.P.); (S.P.); (J.K.); (P.S.); (T.C.)
- Center of Excellence in Materials Science and Technology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
- Cluster of Agro Bio-Circular-Green Industry (Agro BCG), Chiang Mai University, Chiang Mai 50100, Thailand; (S.C.); (P.J.); (W.R.); (S.W.); (S.R.S.)
| | - Yuthana Phimolsiripol
- School of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, Mae-Hea, Mueang, Chiang Mai 50100, Thailand; (P.R.); (N.H.); (A.K.); (N.L.); (Y.P.); (S.P.); (J.K.); (P.S.); (T.C.)
- Center of Excellence in Materials Science and Technology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
- Cluster of Agro Bio-Circular-Green Industry (Agro BCG), Chiang Mai University, Chiang Mai 50100, Thailand; (S.C.); (P.J.); (W.R.); (S.W.); (S.R.S.)
| | - Suphat Phongthai
- School of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, Mae-Hea, Mueang, Chiang Mai 50100, Thailand; (P.R.); (N.H.); (A.K.); (N.L.); (Y.P.); (S.P.); (J.K.); (P.S.); (T.C.)
- Cluster of Agro Bio-Circular-Green Industry (Agro BCG), Chiang Mai University, Chiang Mai 50100, Thailand; (S.C.); (P.J.); (W.R.); (S.W.); (S.R.S.)
| | - Julaluk Khemacheewakul
- School of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, Mae-Hea, Mueang, Chiang Mai 50100, Thailand; (P.R.); (N.H.); (A.K.); (N.L.); (Y.P.); (S.P.); (J.K.); (P.S.); (T.C.)
- Cluster of Agro Bio-Circular-Green Industry (Agro BCG), Chiang Mai University, Chiang Mai 50100, Thailand; (S.C.); (P.J.); (W.R.); (S.W.); (S.R.S.)
| | - Phisit Seesuriyachan
- School of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, Mae-Hea, Mueang, Chiang Mai 50100, Thailand; (P.R.); (N.H.); (A.K.); (N.L.); (Y.P.); (S.P.); (J.K.); (P.S.); (T.C.)
- Center of Excellence in Materials Science and Technology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
- Cluster of Agro Bio-Circular-Green Industry (Agro BCG), Chiang Mai University, Chiang Mai 50100, Thailand; (S.C.); (P.J.); (W.R.); (S.W.); (S.R.S.)
| | - Thanongsak Chaiyaso
- School of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, Mae-Hea, Mueang, Chiang Mai 50100, Thailand; (P.R.); (N.H.); (A.K.); (N.L.); (Y.P.); (S.P.); (J.K.); (P.S.); (T.C.)
- Cluster of Agro Bio-Circular-Green Industry (Agro BCG), Chiang Mai University, Chiang Mai 50100, Thailand; (S.C.); (P.J.); (W.R.); (S.W.); (S.R.S.)
| | - Suwit Chotinan
- Cluster of Agro Bio-Circular-Green Industry (Agro BCG), Chiang Mai University, Chiang Mai 50100, Thailand; (S.C.); (P.J.); (W.R.); (S.W.); (S.R.S.)
- Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Pensak Jantrawut
- Cluster of Agro Bio-Circular-Green Industry (Agro BCG), Chiang Mai University, Chiang Mai 50100, Thailand; (S.C.); (P.J.); (W.R.); (S.W.); (S.R.S.)
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Warintorn Ruksiriwanich
- Cluster of Agro Bio-Circular-Green Industry (Agro BCG), Chiang Mai University, Chiang Mai 50100, Thailand; (S.C.); (P.J.); (W.R.); (S.W.); (S.R.S.)
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Sutee Wangtueai
- Cluster of Agro Bio-Circular-Green Industry (Agro BCG), Chiang Mai University, Chiang Mai 50100, Thailand; (S.C.); (P.J.); (W.R.); (S.W.); (S.R.S.)
- College of Maritime Studies and Management, Chiang Mai University, Samut Sakhon 74000, Thailand
| | - Sarana Rose Sommano
- Cluster of Agro Bio-Circular-Green Industry (Agro BCG), Chiang Mai University, Chiang Mai 50100, Thailand; (S.C.); (P.J.); (W.R.); (S.W.); (S.R.S.)
- Plant Bioactive Compound Laboratory (BAC), Department of Plant and Soil Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand
| | | | - Kittisak Jantanasakulwong
- School of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, Mae-Hea, Mueang, Chiang Mai 50100, Thailand; (P.R.); (N.H.); (A.K.); (N.L.); (Y.P.); (S.P.); (J.K.); (P.S.); (T.C.)
- Center of Excellence in Materials Science and Technology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
- Cluster of Agro Bio-Circular-Green Industry (Agro BCG), Chiang Mai University, Chiang Mai 50100, Thailand; (S.C.); (P.J.); (W.R.); (S.W.); (S.R.S.)
- Correspondence: ; Tel.: +66-(0)53948274; Fax: +66-(0)53948230
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11
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Chen S, Yan C, Xiao J, Liu W, Li Z, Liu H, Liu J, Zhang X, Ou M, Chen Z, Li W, Zhao X. Domestication and Feed Restriction Programming Organ Index, Dopamine, and Hippocampal Transcriptome Profile in Chickens. Front Vet Sci 2021; 8:701850. [PMID: 34604368 PMCID: PMC8481600 DOI: 10.3389/fvets.2021.701850] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 07/19/2021] [Indexed: 12/13/2022] Open
Abstract
The domestication process exerts different phenotypic plasticity between slow- and fast-growing breeds of chicken. Feed restriction has a critical role in production performance, physiological plasticity, and stress response. Our study aimed to explore how feed restriction programed the organ index, dopamine, and hippocampal transcriptome profile between slow- and fast-growing chickens, which were fed either ad libitum (SA and FA), or feed restricted to 70% of ad libitum (SR and FR), for 30 days. Results showed that feed restriction influenced the brain organ index (P < 0.05), but not the organ index of the heart, liver, and spleen. The slow-growing breed tested had a higher brain organ index than the fast-growing breed (P < 0.05). Under feed restriction conditions, both the slow- and fast-growing breeds had significantly elevated dopamine concentrations (P < 0.05) compared to those fed ad libitum. In the GO term, upregulated genes in the FA group were enriched in the mitochondria, respiratory chain, and energy metabolism compared to the SA group (P < 0.05). Membranes and ribosomes were enriched in the cellular component between the SR and FR groups (P < 0.05). In the KEGG functional pathways, upregulated DEGs in the FR group were enriched in the cardiovascular disease category and neurodegenerative disease category compared to the FA group (P < 0.05). Downregulated DEGs in the FA group were enriched in the oxidative phosphorylation and neurodegenerative disease categories (Parkinson's disease and Huntington's disease) compared with the SA group (P < 0.05). Upregulated DEGs in the FR group were enriched in the cardiovascular disease category, neurodegenerative disease category, and energy metabolism than the SR group (P < 0.05). In conclusion, feed restriction had profound effects on the brain organ index and plasma dopamine in the slow- and fast-growing chickens. Feed restriction may result in issues relating to cardiovascular and neurodegenerative diseases in the fast-growing breed tested, but not in the slow-growing breed.
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Affiliation(s)
- Siyu Chen
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, Key Laboratory of Animal Molecular Design and Precise Breeding of Guangdong Higher Education Institutes, School of Life Science and Engineering, Foshan University, Foshan, China.,Guizhou Nayong Professor Workstation, China Agricultural University, Bijie, China
| | - Chao Yan
- Guizhou Nayong Professor Workstation, China Agricultural University, Bijie, China.,College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Jinlong Xiao
- Guizhou Nayong Professor Workstation, China Agricultural University, Bijie, China.,College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Wen Liu
- College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Zhiwei Li
- College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Hao Liu
- College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Jian Liu
- Guizhou Nayong Professor Workstation, China Agricultural University, Bijie, China
| | - Xiben Zhang
- Guizhou Nayong Professor Workstation, China Agricultural University, Bijie, China
| | - Maojun Ou
- Guizhou Nayong Professor Workstation, China Agricultural University, Bijie, China
| | - Zelin Chen
- Guizhou Nayong Professor Workstation, China Agricultural University, Bijie, China
| | - Weibo Li
- Guizhou Nayong Professor Workstation, China Agricultural University, Bijie, China
| | - Xingbo Zhao
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, Key Laboratory of Animal Molecular Design and Precise Breeding of Guangdong Higher Education Institutes, School of Life Science and Engineering, Foshan University, Foshan, China.,Guizhou Nayong Professor Workstation, China Agricultural University, Bijie, China.,College of Animal Science and Technology, China Agricultural University, Beijing, China
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12
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Jejunal Transcriptomic Profiling for Differences in Feed Conversion Ratio in Slow-Growing Chickens. Animals (Basel) 2021; 11:ani11092606. [PMID: 34573572 PMCID: PMC8470203 DOI: 10.3390/ani11092606] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 08/27/2021] [Accepted: 09/02/2021] [Indexed: 12/12/2022] Open
Abstract
Simple Summary The slow-growing Korat chicken (KR) is economically attractive, as KR meat has a high selling price and has thus been used in Thailand to support smallholder farmers. However, low feed efficiency in KR stockbreeding makes the product less competitive and improving KR feed efficiency is central to increasing KR profitability. Using RNA sequencing, we compared the jejunal transcriptomic profiles of low- and high-feed conversion ratio (FCR) KR chickens, to identify FCR-related transcriptional variation and biological pathways. Gene Ontology and Kyoto Encyclopedia of Gene and Genome analysis revealed that the main pathways involved in KR FCR variation are related to immune response, glutathione metabolism, vitamin transport and metabolism, lipid metabolism, and neuronal and cardiac maturation, development, and growth. This is the first study to investigate, in the jejunum, the molecular genetic mechanisms affecting the FCR of slow-growing chickens. These findings will be useful in line-breeding programs to improve feed efficiency and profitability in slow-growing chicken stockbreeding. Abstract Improving feed efficiency is an important breeding target for the poultry industry; to achieve this, it is necessary to understand the molecular basis of feed efficiency. We compared the jejunal transcriptomes of low- and high-feed conversion ratio (FCR) slow-growing Korat chickens (KRs). Using an original sample of 75 isolated 10-week-old KR males, we took jejunal samples from six individuals in two groups: those with extremely low FCR (n = 3; FCR = 1.93 ± 0.05) and those with extremely high FCR (n = 3; FCR = 3.29 ± 0.06). Jejunal transcriptome profiling via RNA sequencing revealed 56 genes that were differentially expressed (p < 0.01, FC > 2): 31 were upregulated, and 25 were downregulated, in the low-FCR group relative to the high-FCR group. Functional annotation revealed that these differentially expressed genes were enriched in biological processes related to immune response, glutathione metabolism, vitamin transport and metabolism, lipid metabolism, and neuronal and cardiac maturation, development, and growth, suggesting that these are important mechanisms governing jejunal feed conversion. These findings provide an important molecular basis for future breeding strategies to improve slow-growing chicken feed efficiency.
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13
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Núñez-León D, Cordero GA, Schlindwein X, Jensen P, Stoeckli E, Sánchez-Villagra MR, Werneburg I. Shifts in growth, but not differentiation, foreshadow the formation of exaggerated forms under chicken domestication. Proc Biol Sci 2021; 288:20210392. [PMID: 34130497 DOI: 10.1098/rspb.2021.0392] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Domestication provides an outstanding opportunity for biologists to explore the underpinnings of organismal diversification. In domesticated animals, selective breeding for exaggerated traits is expected to override genetic correlations that normally modulate phenotypic variation in nature. Whether this strong directional selection affects the sequence of tightly synchronized events by which organisms arise (ontogeny) is often overlooked. To address this concern, we compared the ontogeny of the red junglefowl (RJF) (Gallus gallus) to four conspecific lineages that underwent selection for traits of economic or ornamental value to humans. Trait differentiation sequences in embryos of these chicken breeds generally resembled the representative ancestral condition in the RJF, thus revealing that early ontogeny remains highly canalized even during evolution under domestication. This key finding substantiates that the genetic cost of domestication does not necessarily compromise early ontogenetic steps that ensure the production of viable offspring. Instead, disproportionate beak and limb growth (allometry) towards the end of ontogeny better explained phenotypes linked to intense selection for industrial-scale production over the last 100 years. Illuminating the spatial and temporal specificity of development is foundational to the enhancement of chicken breeds, as well as to ongoing research on the origins of phenotypic variation in wild avian species.
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Affiliation(s)
- Daniel Núñez-León
- Paläontologisches Institut und Museum, Universität Zürich, Karl Schmid-Strasse 4, 8006, Zürich, Switzerland
| | - Gerardo A Cordero
- Senckenberg Centre for Human Evolution and Palaeoenvironment (HEP) an der Eberhard Karls, Universität Tübingen, Tübingen, Germany.,Fachbereich Geowissenschaften, Eberhard Karls Universität Tübingen, Tübingen, Germany
| | - Xenia Schlindwein
- Senckenberg Centre for Human Evolution and Palaeoenvironment (HEP) an der Eberhard Karls, Universität Tübingen, Tübingen, Germany.,Fachbereich Geowissenschaften, Eberhard Karls Universität Tübingen, Tübingen, Germany
| | - Per Jensen
- IFM Biologi, AVIAN Behavioural Genomics and Physiology group, Linköping University, SE-58183 Linköping, Sweden
| | - Esther Stoeckli
- Department of Molecular Life Sciences, Universität Zürich, Winterthurerstrasse 190, 8057, Zürich, Switzerland
| | - Marcelo R Sánchez-Villagra
- Paläontologisches Institut und Museum, Universität Zürich, Karl Schmid-Strasse 4, 8006, Zürich, Switzerland
| | - Ingmar Werneburg
- Senckenberg Centre for Human Evolution and Palaeoenvironment (HEP) an der Eberhard Karls, Universität Tübingen, Tübingen, Germany.,Fachbereich Geowissenschaften, Eberhard Karls Universität Tübingen, Tübingen, Germany
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14
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Al-Khalaifah H, Al-Nasser A. Dietary source of polyunsaturated fatty acids influences cell cytotoxicity in broiler chickens. Sci Rep 2021; 11:10113. [PMID: 34001928 PMCID: PMC8129153 DOI: 10.1038/s41598-021-89381-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 03/23/2021] [Indexed: 12/14/2022] Open
Abstract
The current study aims to investigate the effects of dietary source of n-3 polyunsaturated fatty acids (PUFA) on immune response in broiler chickens, represented by cytotoxic cell activity. A total of 255 one-day-old male Cobb 500 broiler chickens were fed on fish oil (FO)-, flaxseed oil-enriched diets at 50 and 19 g/kg, respectively, in addition to the soybean-based control diet. At slaughter, samples of blood and spleen were harvested from 20 birds/treatment (n = 20). The immune tissues' fatty acid profile was analyzed by gas chromatography, and the cytotoxic cell activity was investigated. The results showed that supplementing broiler chickens with diets rich in n-3 PUFA had a substantial effect on the broiler immune tissues' fatty acid profile. Cytotoxic cell activity was significantly higher in splenocytes and peripheral blood mononuclear cells (PBMCs) from broilers fed flaxseed oil than those provided FO and the soybean control diet. These results suggest that flaxseed oil may be used to enrich chickens with n-3 PUFA and improve the immune status of chicken flocks to resist diseases.
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Affiliation(s)
- Hanan Al-Khalaifah
- Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research (KISR), Kuwait, Kuwait.
| | - Afaf Al-Nasser
- Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research (KISR), Kuwait, Kuwait
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15
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Removal of roosters alters the domestic phenotype and microbial and genetic profile of hens. SCIENCE CHINA-LIFE SCIENCES 2021; 64:1964-1976. [PMID: 33587265 DOI: 10.1007/s11427-020-1770-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 07/14/2020] [Indexed: 12/15/2022]
Abstract
Hens are raised apart from roosters in modern poultry production, a substantial change from their natural social structure. We compared productivity, injuries, behavior, physiology, microbiome and transcriptome of hens housed with (R+) or without (R-) roosters to quantify the effects of this change in social structure. Hens were raised free-range from 70 to 280 days when 30 birds per treatment were assigned to battery cages until Day 315 (R+C vs. R-C), while 30 birds per treatment remained in free-range pens (R+F vs. R-F). Response to a novel environment and object, behavioral time budgets, cecum microbiome, blood composition and transcriptomic sequencing of thigh muscle and spleen were analyzed. Hens housed without roosters showed better survival, consumed less food, produced more eggs and had better feed conversion. R+F hens clustered around the rooster and were less mobile in the novel environment and object tests. R+F hens displayed the richest microbiome, and the presence of roosters resulted in differentially expressed genes related to muscle development, cellular processes, environmental information processing and immune function. Removing roosters from housed hens intensified desirable characteristics favored by domestication probably operating by deprivation of mating behavior and reduced fear, along with altered microbial and genetic function.
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16
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Alsanosy AA, Noreldin AE, Elewa YHA, Mahmoud SF, Elnasharty MA, Aboelnour A. Comparative Features of the Upper Alimentary Tract in the Domestic Fowl ( Gallus gallus domesticus) and Kestrel ( Falco tinnunculus): A Morphological, Histochemical, and Scanning Electron Microscopic Study. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2021; 27:201-214. [PMID: 33300491 DOI: 10.1017/s1431927620024812] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The avian alimentary tract has evolved into different histologic structures to accommodate the physical and chemical features of several food types and flight requirements. We compared the esophagus, proventriculus, and gizzard of the domestic fowl, Gallus gallus domesticus (GGD) and kestrels, Falco tinnunculus (FT) using immunohistochemistry and scanning electron microscopy with various stains and lectins [Dolichos biflorus agglutinin (DBA) and Ricinus communis agglutinin I (RCA120)], and α-smooth muscle actin (α-SMA). The esophagus of GGD demonstrated thickened epithelium, muscularis mucosae, and inner circular longitudinal tunica muscularis layers; moderate outer longitudinal tunica muscularis layers; and a true crop. In contrast, the esophagus of FT showed a thin epithelium, no muscularis mucosae, moderate inner longitudinal and thick outer circular tunica muscularis layers, and no true crop. In the proventriculus, the nature of the secretion in GGD was neutral, but that of FT was acidic and neutral. In the gizzard, the muscle coat of GGD by α-SMA had no muscularis mucosae, unlike FT, which had muscularis mucosae. In summary, there are many histologic differences between GGD and FT to meet their different physiologic needs, such as feeding.
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Affiliation(s)
- Abdallah A Alsanosy
- Histology and Cytology Department, Faculty of Veterinary Medicine, Damanhour University, Damanhour22511, Egypt
| | - Ahmed E Noreldin
- Histology and Cytology Department, Faculty of Veterinary Medicine, Damanhour University, Damanhour22511, Egypt
| | - Yaser H A Elewa
- Histology and Cytology Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig44519, Egypt
- Laboratory of Anatomy, Faculty of Veterinary Medicine, Basic Veterinary Sciences, Hokkaido University, Sapporo060-0818, Japan
| | - Sahar F Mahmoud
- Histology and Cytology Department, Faculty of Veterinary Medicine, Damanhour University, Damanhour22511, Egypt
| | - Mohamed A Elnasharty
- Histology and Cytology Department, Faculty of Veterinary Medicine, Damanhour University, Damanhour22511, Egypt
| | - Asmaa Aboelnour
- Histology and Cytology Department, Faculty of Veterinary Medicine, Damanhour University, Damanhour22511, Egypt
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17
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Yan C, Xiao J, Chen D, Turner SP, Li Z, Liu H, Liu W, Liu J, Chen S, Zhao X. Feed Restriction Induced Changes in Behavior, Corticosterone, and Microbial Programming in Slow- and Fast-Growing Chicken Breeds. Animals (Basel) 2021; 11:ani11010141. [PMID: 33440656 PMCID: PMC7827424 DOI: 10.3390/ani11010141] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 01/07/2021] [Accepted: 01/07/2021] [Indexed: 02/07/2023] Open
Abstract
Simple Summary Different genotypes of slow- and fast-growing chickens have phenotypic changes in appearance, behavior, and productivity in response to artificial selection. Feed restriction and gut microbiota play a vital role in controlling food intake, nutrition, and health. However, little is known about how feed restriction, as a benefit or chronic stress, influences behavior, stress response, and gut microbial programming in slow- and fast-growing chickens. This study aimed to explore slow- and fast-growing chickens who had feed restricted to 70% of ad libitum or were given ad libitum feed for 30 days to evaluate the effects on behavior, stress response, and gut microbiota. We found that feed restriction can influence behaviors in both slow- and fast-growing breeds. Feed restriction to 70% for 30 days can influence stress response and gut microbiota composition, but some changes are evident only in slow- or only in fast-growing chickens. The study provides a better understanding of how artificial selection has affected chicken biology and their response to stress challenge. Abstract This study aimed to explore the difference between two Chinese local broilers, one slow- and one fast-growing, in their response to a stress challenge. We conducted the study on slow- (Weining chicken) and fast-growing (Jinlinghua chicken) breeds, with 50 chickens from each breed either feed restricted to 70% for 30 days as a stress or given ad libitum to evaluate the effects on behavior, corticosterone, and microbial programming. Standing behavior was more frequent while exploration was less common in fast-growing breeds compared to slow-growing breeds. Food seeking and ingestion, exploration, and drinking increased, while resting decreased in the feed restricted treatments. There was no difference in corticosterone concentration between slow- and fast-growing chickens, but the level was affected by feeding treatments, and the interaction of breed and feed restriction. At the genus-level, the relative abundance of Bacteroides and Lactobacillus was higher, while Cloacibacillus and Megasphaera was lower in the slow-growing breed compared to the fast-growing breed. Feed restricted birds had a higher abundance of Mucispirillum, but lower abundance of Cloacibacillus, Clostridium XlVa and Clostridium IV. In conclusion, feed restriction to 70% for 30 days as a chronic stress stimulation caused more activity, elevated the stress response, and altered gut microbiota composition, but some changes were only evident in slow- or fast-growing chickens.
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Affiliation(s)
- Chao Yan
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (C.Y.); (J.X.); (D.C.); (Z.L.); (H.L.); (W.L.)
- Guizhou Nayong Professor Workstation, China Agricultural University, Bijie 553300, China;
| | - Jinlong Xiao
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (C.Y.); (J.X.); (D.C.); (Z.L.); (H.L.); (W.L.)
- Guizhou Nayong Professor Workstation, China Agricultural University, Bijie 553300, China;
| | - Di Chen
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (C.Y.); (J.X.); (D.C.); (Z.L.); (H.L.); (W.L.)
| | - Simon P. Turner
- Animal and Veterinary Sciences Department, Scotland’s Rural College, Edinburgh EH25 9RG, UK;
| | - Zhiwei Li
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (C.Y.); (J.X.); (D.C.); (Z.L.); (H.L.); (W.L.)
| | - Hao Liu
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (C.Y.); (J.X.); (D.C.); (Z.L.); (H.L.); (W.L.)
| | - Wen Liu
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (C.Y.); (J.X.); (D.C.); (Z.L.); (H.L.); (W.L.)
| | - Jian Liu
- Guizhou Nayong Professor Workstation, China Agricultural University, Bijie 553300, China;
| | - Siyu Chen
- Guizhou Nayong Professor Workstation, China Agricultural University, Bijie 553300, China;
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, Key Laboratory of Animal Molecular Design and Precise Breeding of Guangdong Higher Education Institutes, School of Life Science and Engineering, Foshan University, Foshan 528225, China
- Correspondence: (S.C.); (X.Z.); Tel.: +86-0757-85517214 (S.C.); +86-010-62733417 (X.Z.)
| | - Xingbo Zhao
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (C.Y.); (J.X.); (D.C.); (Z.L.); (H.L.); (W.L.)
- Guizhou Nayong Professor Workstation, China Agricultural University, Bijie 553300, China;
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, Key Laboratory of Animal Molecular Design and Precise Breeding of Guangdong Higher Education Institutes, School of Life Science and Engineering, Foshan University, Foshan 528225, China
- Correspondence: (S.C.); (X.Z.); Tel.: +86-0757-85517214 (S.C.); +86-010-62733417 (X.Z.)
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18
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Pellattiero E, Tasoniero G, Cullere M, Gleeson E, Baldan G, Contiero B, Dalle Zotte A. Are Meat Quality Traits and Sensory Attributes in Favor of Slow-Growing Chickens? Animals (Basel) 2020; 10:E960. [PMID: 32486516 PMCID: PMC7341280 DOI: 10.3390/ani10060960] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 05/28/2020] [Accepted: 05/29/2020] [Indexed: 11/16/2022] Open
Abstract
The present study compared certain quality features and sensory attributes of the meat obtained from three different chicken genotypes: two endangered slow-growing indigenous breeds (Padovana: PAD, Polverara: POL) and a commercial broiler (Hybrid). Chickens (n = 42/genotype) were slaughtered at their commercial slaughter age: 183 days for PAD and POL chickens, and 35 days for the Hybrid. Breast and leg meat were dissected and used for qualitative evaluations. Results highlighted that genotype significantly affected final breast weight, with Hybrid showing higher values than both indigenous chickens. Conversely, PAD and POL meat was instrumentally tougher and richer in haem iron compared to the Hybrid. The sensory analysis conducted by a trained panel showed that the textural aspects and metallic flavor perception of PAD and POL meat differed from that of the Hybrid. These aspects were probably responsible for the lower overall acceptability of the PAD and POL meat compared to the Hybrid, as expressed by the consumer panel. A key step in making PAD and POL meat acceptable to consumers and stimulating its market seems thus the development of appropriate marketing strategies to transform product peculiarities in strength points.
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Affiliation(s)
- Erika Pellattiero
- Department of Animal Medicine, Production and Health, University of Padova, Agripolis, viale dell’ Università, 16, 35020 Legnaro (P.D.), Italy; (E.P.); (G.T.); (E.G.); (B.C.); (A.D.Z.)
| | - Giulia Tasoniero
- Department of Animal Medicine, Production and Health, University of Padova, Agripolis, viale dell’ Università, 16, 35020 Legnaro (P.D.), Italy; (E.P.); (G.T.); (E.G.); (B.C.); (A.D.Z.)
| | - Marco Cullere
- Department of Animal Medicine, Production and Health, University of Padova, Agripolis, viale dell’ Università, 16, 35020 Legnaro (P.D.), Italy; (E.P.); (G.T.); (E.G.); (B.C.); (A.D.Z.)
| | - Elizabeth Gleeson
- Department of Animal Medicine, Production and Health, University of Padova, Agripolis, viale dell’ Università, 16, 35020 Legnaro (P.D.), Italy; (E.P.); (G.T.); (E.G.); (B.C.); (A.D.Z.)
| | - Gabriele Baldan
- Agricultural High School “San Benedetto da Norcia”, Via delle Cave 172, 35136 Padova, Italy;
| | - Barbara Contiero
- Department of Animal Medicine, Production and Health, University of Padova, Agripolis, viale dell’ Università, 16, 35020 Legnaro (P.D.), Italy; (E.P.); (G.T.); (E.G.); (B.C.); (A.D.Z.)
| | - Antonella Dalle Zotte
- Department of Animal Medicine, Production and Health, University of Padova, Agripolis, viale dell’ Università, 16, 35020 Legnaro (P.D.), Italy; (E.P.); (G.T.); (E.G.); (B.C.); (A.D.Z.)
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Matulka RA, Thompson L, Corley D. Multi-Level Safety Studies of Anti Fel d 1 IgY Ingredient in Cat Food. Front Vet Sci 2020; 6:477. [PMID: 31970163 PMCID: PMC6960183 DOI: 10.3389/fvets.2019.00477] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 12/05/2019] [Indexed: 12/19/2022] Open
Abstract
Chickens exposed to antigens produce IgY antibodies, similar in structure to mammalian IgG. Hens exposed with an allergen produced by cats (Fel d 1) results in production of anti-Fel d 1 specific IgY (AFD1), which is naturally concentrated in egg yolk. A chicken egg product ingredient containing AFD1 was evaluated for safety in a 26-week randomized, controlled, blinded tolerance study in cats and in vitro for mutagenic and genotoxic effects. The in vivo study was conducted with groups fed kibble containing 0, 7, 39, or 66 ppm AFD1. Parameters examined included: clinical observations, body weights, food consumption, serum chemistry, hematology, blood coagulation, urinalyses, and mortality and morbidity checks. AFD1 was evaluated for potential mutagenic effects utilizing the bacterial reverse mutation assay at concentrations of up to 2.78 ppm and for potential structural chromosomal aberrations at up to 3 ppm using human peripheral blood lymphocytes (HPBL). After 6-months of feeding to cats, there were no significant differences between control and any test groups in any parameters analyzed. No significant increases in mutations or chromosomal aberrations were observed in tests with or without metabolic activation (S9). These studies show AFD1 was well-tolerated in cats at levels tested and does not induce mutagenic or chromosomal aberrations under study conditions.
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Affiliation(s)
- Ray A Matulka
- Burdock Group Consultants, Orlando, FL, United States
| | - Larry Thompson
- Nestlé Purina PetCare Global Resources, Inc., St. Louis, MO, United States
| | - David Corley
- Nestlé Purina PetCare Global Resources, Inc., St. Louis, MO, United States
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Identification of Copy Number Variation in Domestic Chicken Using Whole-Genome Sequencing Reveals Evidence of Selection in the Genome. Animals (Basel) 2019; 9:ani9100809. [PMID: 31618984 PMCID: PMC6826909 DOI: 10.3390/ani9100809] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 10/13/2019] [Accepted: 10/14/2019] [Indexed: 12/12/2022] Open
Abstract
Simple Summary Chickens have been bred for meat and egg production as a source of animal protein. With the increase of productivity as the main purpose of domestication, factors such as metabolism and immunity were boosted, which are detectable signs of selection on the genome. This study focused on copy number variation (CNV) to find evidence of domestication on the genome. CNV was detected from whole-genome sequencing of 65 chickens including Red Jungle Fowl, broilers, and layers. After that, CNV region, the overlapping region of CNV between individuals, was made to identify which genomic regions showed copy number differentiation. The 663 domesticated-specific CNV regions were associated with various functions such as metabolism and organ development. Also, by performing population differentiation analyses such as clustering analysis and ANOVA test, we found that there are a lot of genomic regions with different copy number patterns between broilers and layers. This result indicates that different genetic variations can be found, depending on the purpose of artificial selection and provides considerations for future animal breeding. Abstract Copy number variation (CNV) has great significance both functionally and evolutionally. Various CNV studies are in progress to find the cause of human disease and to understand the population structure of livestock. Recent advances in next-generation sequencing (NGS) technology have made CNV detection more reliable and accurate at whole-genome level. However, there is a lack of CNV studies on chickens using NGS. Therefore, we obtained whole-genome sequencing data of 65 chickens including Red Jungle Fowl, Cornish (broiler), Rhode Island Red (hybrid), and White Leghorn (layer) from the public databases for CNV region (CNVR) detection. Using CNVnator, a read-depth based software, a total of 663 domesticated-specific CNVRs were identified across autosomes. Gene ontology analysis of genes annotated in CNVRs showed that mainly enriched terms involved in organ development, metabolism, and immune regulation. Population analysis revealed that CN and RIR are closer to each other than WL, and many genes (LOC772271, OR52R1, RD3, ADH6, TLR2B, PRSS2, TPK1, POPDC3, etc.) with different copy numbers between breeds found. In conclusion, this study has helped to understand the genetic characteristics of domestic chickens at CNV level, which may provide useful information for the development of breeding systems in chickens.
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From the wild red jungle fowl to domesticated chickens: modification of eimerian-microbiome-host interactions. WORLD POULTRY SCI J 2019. [DOI: 10.1017/s0043933915000355] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Núñez‐León D, Aguirre‐Fernández G, Steiner A, Nagashima H, Jensen P, Stoeckli E, Schneider RA, Sánchez‐Villagra MR. Morphological diversity of integumentary traits in fowl domestication: Insights from disparity analysis and embryonic development. Dev Dyn 2019; 248:1044-1058. [DOI: 10.1002/dvdy.105] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 08/01/2019] [Accepted: 08/13/2019] [Indexed: 12/18/2022] Open
Affiliation(s)
- Daniel Núñez‐León
- Paläontologisches Institut und Museum, Universität Zürich Zürich Switzerland
| | | | - Andrea Steiner
- Paläontologisches Institut und Museum, Universität Zürich Zürich Switzerland
| | - Hiroshi Nagashima
- Division of Gross Anatomy and MorphogenesisNiigata University Graduate School of Medical and Dental Sciences Niigata Japan
| | - Per Jensen
- IFM Biologi, AVIAN Behavioural Genomics and Physiology GroupLinköping University Linköping Sweden
| | - Esther Stoeckli
- Institute of Molecular Life Sciences, University of Zurich Zurich Switzerland
| | - Richard A. Schneider
- Department of Orthopaedic SurgeryUniversity of California San Francisco California
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Almeida OAC, Moreira GCM, Rezende FM, Boschiero C, de Oliveira Peixoto J, Ibelli AMG, Ledur MC, de Novais FJ, Coutinho LL. Identification of selection signatures involved in performance traits in a paternal broiler line. BMC Genomics 2019; 20:449. [PMID: 31159736 PMCID: PMC6547531 DOI: 10.1186/s12864-019-5811-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 05/20/2019] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Natural and artificial selection leads to changes in certain regions of the genome resulting in selection signatures that can reveal genes associated with the selected traits. Selection signatures may be identified using different methodologies, of which some are based on detecting contiguous sequences of homozygous identical-by-descent haplotypes, called runs of homozygosity (ROH), or estimating fixation index (FST) of genomic windows that indicates genetic differentiation. This study aimed to identify selection signatures in a paternal broiler TT line at generations 7th and 16th of selection and to investigate the genes annotated in these regions as well as the biological pathways involved. For such purpose, ROH and FST-based analysis were performed using whole genome sequence of twenty-eight chickens from two different generations. RESULTS ROH analysis identified homozygous regions of short and moderate size. Analysis of ROH patterns revealed regions commonly shared among animals and changes in ROH abundance and size between the two generations. Results also suggest that whole genome sequencing (WGS) outperforms SNPchip data avoiding overestimation of ROH size and underestimation of ROH number; however, sequencing costs can limited the number of animals analyzed. FST-based analysis revealed genetic differentiation in several genomic windows. Annotation of the consensus regions of ROH and FST windows revealed new and previously identified genes associated with traits of economic interest, such as APOB, IGF1, IGFBP2, POMC, PPARG, and ZNF423. Over-representation analysis of the genes resulted in biological terms of skeletal muscle, matrilin proteins, adipose tissue, hyperglycemia, diabetes, Salmonella infections and tyrosine. CONCLUSIONS Identification of ROH and FST-based analyses revealed selection signatures in TT line and genes that have important role in traits of economic interest. Changes in the genome of the chickens were observed between the 7th and 16th generations showing that ancient and recent selection in TT line may have acted over genomic regions affecting diseases and performance traits.
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Affiliation(s)
| | | | | | | | | | | | | | - Francisco José de Novais
- University of São Paulo (USP) / Luiz de Queiroz College of Agriculture (ESALQ), Piracicaba, São Paulo Brazil
| | - Luiz Lehmann Coutinho
- University of São Paulo (USP) / Luiz de Queiroz College of Agriculture (ESALQ), Piracicaba, São Paulo Brazil
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Syed MA, Jackson CR, Ramadan H, Afridi R, Bano S, Bibi S, Fatima B, Tabassum S, Jamil B, Khan MF, Barrett JB, Woodley TA. Detection and Molecular Characterization of Staphylococci from Eggs of Household Chickens. Foodborne Pathog Dis 2019; 16:550-557. [PMID: 31009262 DOI: 10.1089/fpd.2018.2585] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Eggs are a healthy and nutritious food source, but may be contaminated by bacteria. Previous studies have reported the presence of staphylococci in eggs of farmed chickens, but no study has evaluated the staphylococcal population of eggs from household chickens. In this study, staphylococci from eggs (n = 275) of household chickens collected from November 2016 to March 2017 from different villages of Khyber Pakhtunkhwa province, Pakistan, were characterized. Seven species of staphylococci were identified from 65 eggs, including the predominant species, Staphylococcus xylosus (49/275; 17.8%). S. xylosus isolates (n = 73) were tested for antimicrobial susceptibility, presence of resistance genes, genetic relatedness, and inhibitory activity against other bacteria. The majority of isolates were resistant to oxacillin (83.6%) and tetracycline (24.7%), but also exhibited resistance to daptomycin and linezolid (5.5% each). Of the 10 resistance genes tested, isolates were only positive for mecA (35.6%; 26/73), mecC/C1 (2.7%; 2/73), and tet(K) (14/73; 19%). Using pulsed-field gel electrophoresis (PFGE), nine clusters had identical PFGE patterns. Isolates produced inhibitory activity against a broad spectrum of bacteria; 20.5%, 19.2%, 17.8%, and 16.4% of S. xylosus were able to inhibit growth of Salmonella enterica serotype Typhi, methicillin-susceptible Staphylococcus aureus, Escherichia coli, and methicillin-resistant Staphylococcus aureus, respectively. This study demonstrated the presence of genetically related antimicrobial-resistant S. xylosus from eggs from household chickens. Like table eggs, eggs of household chickens also contain staphylococci that may be resistant to antimicrobials used to treat human infections. These data will allow comparison between staphylococci from eggs from different sources and may indicate the relative safety of eggs from household chickens. Further study of these egg types and their microbial composition is warranted.
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Affiliation(s)
- Muhammad Ali Syed
- 1Department of Microbiology, University of Haripur, Haripur, Pakistan
| | - Charlene R Jackson
- 2Bacterial Epidemiology and Antimicrobial Resistance Research Unit, USDA-ARS, U.S. National Poultry Research Center, Athens, Georgia
| | - Hazem Ramadan
- 3Hygiene and Zoonoses Department, Faculty of Veterinary Medicine, Mansoura University, Mansoura, Egypt
| | | | - Shehr Bano
- 1Department of Microbiology, University of Haripur, Haripur, Pakistan
| | - Sumera Bibi
- 1Department of Microbiology, University of Haripur, Haripur, Pakistan
| | - Bushra Fatima
- 1Department of Microbiology, University of Haripur, Haripur, Pakistan
| | - Sadia Tabassum
- 4Department of Zoology, Hazara University, Mansehra, Pakistan
| | - Bushra Jamil
- 5National University of Medical Sciences, Rawalpindi, Pakistan
| | | | - John B Barrett
- 2Bacterial Epidemiology and Antimicrobial Resistance Research Unit, USDA-ARS, U.S. National Poultry Research Center, Athens, Georgia
| | - Tiffanie A Woodley
- 2Bacterial Epidemiology and Antimicrobial Resistance Research Unit, USDA-ARS, U.S. National Poultry Research Center, Athens, Georgia
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Westling M, Leino MW, Nilsen A, Wennström S, Öström Å. Crop and Livestock Diversity Cultivating Gastronomic Potential, Illustrated by Sensory Profiles of Landraces. J Food Sci 2019; 84:1162-1169. [PMID: 30958573 PMCID: PMC6594110 DOI: 10.1111/1750-3841.14582] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 01/29/2019] [Accepted: 03/07/2019] [Indexed: 11/29/2022]
Abstract
Landraces, that is, crop and livestock not improved by formal breeding, are scarce in the industrialized world and are mainly maintained ex situ for breeding purposes. The natural biodiversity of these landraces may contribute to securing food production that can adapt to a changing climate, crop pathogens, diseases, and other agricultural challenges. In addition, landraces might also possess unique quality traits. Our aim is to take the idea of crop and livestock diversity further by connecting flavor differences of different landraces and varieties, with gastronomic applications. Do landraces provide a creative possibility of using distinct sensory characteristics to create new dishes and food products and/or to optimize recipes by finding the right variety for existing dishes and food products? This study suggests that apple, pea, pear, and poultry landraces, apart from being valuable in terms of biodiversity in sustainable food systems, also possess unique and distinct gastronomic potential. For example, citrus odors in apples, nutty taste in gray peas, astringent taste in pears, and high odor intensity of stable in poultry is of culinary relevance when working with apple juice, plant‐based alternatives to meat, poached pears, and roasted rooster, respectively. To fully explore, and take advantage of, the gastronomic potential landraces possess, additional studies are needed in order to find suitable cooking methods and development of recipes. Practical Application Seeking to increase market interest for landraces, highlighting gastronomic values could stimulate higher demand and, in turn, contribute to larger and more resilient populations preserved in situ. Specifically, the paper is of use to (I) crop and livestock producers and food companies who wish to provide products with greater sensory variation, (II) individuals, companies, and organizations with the aim to increase landrace demand and/or preservation, and (III) breeders and genetic engineers managing genetic traits of landraces and other varieties.
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Affiliation(s)
- Magnus Westling
- Authors are with the School of Hospitality, Culinary Arts and Meal Science, Örebro Univ., Sörälgsvägen 1-2, 712 60, Grythyttan, Sweden
| | - Matti W Leino
- Stockholm Univ., Dept. of Archaeology and Classical Studies, 106 91, Stockholm, Sweden
| | - Asgeir Nilsen
- Authors are with the School of Hospitality, Culinary Arts and Meal Science, Örebro Univ., Sörälgsvägen 1-2, 712 60, Grythyttan, Sweden
| | - Stefan Wennström
- Authors are with the School of Hospitality, Culinary Arts and Meal Science, Örebro Univ., Sörälgsvägen 1-2, 712 60, Grythyttan, Sweden
| | - Åsa Öström
- Authors are with the School of Hospitality, Culinary Arts and Meal Science, Örebro Univ., Sörälgsvägen 1-2, 712 60, Grythyttan, Sweden
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Katajamaa R, Larsson LH, Lundberg P, Sörensen I, Jensen P. Activity, social and sexual behaviour in Red Junglefowl selected for divergent levels of fear of humans. PLoS One 2018; 13:e0204303. [PMID: 30256834 PMCID: PMC6157887 DOI: 10.1371/journal.pone.0204303] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 09/06/2018] [Indexed: 01/01/2023] Open
Abstract
The domesticated phenotype is a set of behavioural, morphological and physiological traits that is common for domesticated species. Previous research has found that selection for tameness only can give rise to correlated selection responses that resemble the domesticated phenotype. It has therefore been suggested that tameness may drive the domesticated phenotype as correlated traits. We selected Red Junglefowl for divergent levels of fear of human for eight generations and assessed possible correlated selection responses in other behaviours in semi-natural settings. Behavioural studies were carried out on birds from generations six to eight, and at different ages, in order to study possible effects on general activity, social behaviour and male courtship behaviour. We found that the differences between selection lines changed with age. Adult low fear birds were generally more active and high fear males showed a more intense courtship behaviour. Our study shows that several behaviours can be modified through correlated selection responses by selection on reduced fear of humans only, emphasising the putative role of tameness as a driver of domestication related phenotypes.
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Affiliation(s)
- Rebecca Katajamaa
- AVIAN Behavioural Genomics and Physiology Group, IFM Biology, Linköping University, Linköping, Sweden
| | - Lovisa H. Larsson
- AVIAN Behavioural Genomics and Physiology Group, IFM Biology, Linköping University, Linköping, Sweden
| | - Paulina Lundberg
- AVIAN Behavioural Genomics and Physiology Group, IFM Biology, Linköping University, Linköping, Sweden
| | - Ida Sörensen
- AVIAN Behavioural Genomics and Physiology Group, IFM Biology, Linköping University, Linköping, Sweden
| | - Per Jensen
- AVIAN Behavioural Genomics and Physiology Group, IFM Biology, Linköping University, Linköping, Sweden
- * E-mail:
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Stange M, Núñez-León D, Sánchez-Villagra MR, Jensen P, Wilson LAB. Morphological variation under domestication: how variable are chickens? ROYAL SOCIETY OPEN SCIENCE 2018; 5:180993. [PMID: 30225085 PMCID: PMC6124038 DOI: 10.1098/rsos.180993] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 07/04/2018] [Indexed: 05/08/2023]
Abstract
The process of domestication has long fascinated evolutionary biologists, yielding insights into the rapidity with which selection can alter behaviour and morphology. Previous studies on dogs, cattle and pigeons have demonstrated that domesticated forms show greater magnitudes of morphological variation than their wild ancestors. Here, we quantify variation in skull morphology, modularity and integration in chickens and compare those to the wild fowl using three-dimensional geometric morphometrics and multivariate statistics. Similar to other domesticated species, chickens exhibit a greater magnitude of variation in shape compared with their ancestors. The most variable part of the chicken skull is the cranial vault, being formed by dermal and neural crest-derived bones, its form possibly related to brain shape variation in chickens, especially in crested breeds. Neural crest-derived portions of the skull exhibit a higher amount of variation. Further, we find that the chicken skull is strongly integrated, confirming previous studies in birds, in contrast to the presence of modularity and decreased integration in mammals.
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Affiliation(s)
- Madlen Stange
- Paläontologisches Institut und Museum, Universität Zürich, Karl Schmid-Strasse 4, 8006 Zürich, Switzerland
- Authors for correspondence: Madlen Stange e-mail:
| | - Daniel Núñez-León
- Paläontologisches Institut und Museum, Universität Zürich, Karl Schmid-Strasse 4, 8006 Zürich, Switzerland
| | | | - Per Jensen
- AVIAN Behavioural Genomics and Physiology Group, IFM Biology, Linköping University, 581 83 Linköping, Sweden
| | - Laura A. B. Wilson
- Palaeontology, Geobiology and Earth Archives Research Centre, School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, New South Wales 2052, Australia
- Authors for correspondence: Laura A. B. Wilson e-mail:
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Marino L. Thinking chickens: a review of cognition, emotion, and behavior in the domestic chicken. Anim Cogn 2017; 20:127-147. [PMID: 28044197 PMCID: PMC5306232 DOI: 10.1007/s10071-016-1064-4] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2015] [Revised: 11/30/2016] [Accepted: 12/04/2016] [Indexed: 01/17/2023]
Abstract
Domestic chickens are members of an order, Aves, which has been the focus of a revolution in our understanding of neuroanatomical, cognitive, and social complexity. At least some birds are now known to be on par with many mammals in terms of their level of intelligence, emotional sophistication, and social interaction. Yet, views of chickens have largely remained unrevised by this new evidence. In this paper, I examine the peer-reviewed scientific data on the leading edge of cognition, emotions, personality, and sociality in chickens, exploring such areas as self-awareness, cognitive bias, social learning and self-control, and comparing their abilities in these areas with other birds and other vertebrates, particularly mammals. My overall conclusion is that chickens are just as cognitively, emotionally and socially complex as most other birds and mammals in many areas, and that there is a need for further noninvasive comparative behavioral research with chickens as well as a re-framing of current views about their intelligence.
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Affiliation(s)
- Lori Marino
- The Someone Project, The Kimmela Center for Animal Advocacy, 4100 Kanab Canyon Road, Kanab, UT, 84741, USA.
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Comparative Functional Morphology of the Skeletal Forelimb, Pectoral Girdle, and Sternum in Japanese Native Domestic Fowls. J Poult Sci 2017; 54:47-57. [PMID: 32908408 PMCID: PMC7477184 DOI: 10.2141/jpsa.0160060] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This study aims to understand the relationships among morphological characteristics, their functional roles, and breeder preferences in Japanese native fowls. We analyzed and compared the shapes and sizes of the skeletal forelimb, pectoral girdle, and sternum among six breeds: Chabo, Oh-Shamo, Onagadori, Shokoku, Tosajidori, and Totenko. Because skeletal forelimb, pectoral girdle, and sternum are one of the bases for composing body appearance and for movement of birds such as flapping, we treated those skeletons. All measurements of size were smaller in Chabo than those in other breeds except Tosajidori. The largest measurement values of all parameters were observed in Oh-Shamo. The largest measurement values were observed in all measurements of Oh-Shamo. Short and wide forelimb bones and a short coracoid were observed in Chabo. Oh-Shamo was equipped with a wide sternum and a widely articulated coracoid. Shokoku and Totenko possessed longer bones that constitute the thoracic cavity. We suggest that the small bone size in ornamental fowls contributes toward a cute appearance and that the large bone size of fighting fowls is correlated with their masculinity and aggressiveness. The short forelimb bones, wide articulation, and corpus of forelimb bones in Chabo create a round and soft body silhouette. The observed short coracoid prevents Chabo from dragging its body on the ground while walking. The wide sternum and articulation of the coracoid observed in Oh-Shamo are considered to contribute to the ability to pounce on an opponent by flapping during a fight. The wide sternum of Oh-Shamo is considered to affect its body outline, producing a strong, masculine physical appearance. We also suggest that the characteristics observed in Shokoku and Totenko create a space for the vocal organs, such as clavicle air sacs. We suggest that the observed morphological characteristics underlie the function and breeder preferences of each breed.
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Padhi MK. Importance of Indigenous Breeds of Chicken for Rural Economy and Their Improvements for Higher Production Performance. SCIENTIFICA 2016; 2016:2604685. [PMID: 27144053 PMCID: PMC4838803 DOI: 10.1155/2016/2604685] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2015] [Accepted: 03/09/2016] [Indexed: 06/05/2023]
Abstract
Indigenous/native breeds of chickens are playing an important role in rural economies in most of the developing and underdeveloped countries. They play a major role for the rural poor and marginalised section of the people with respect to their subsidiary income and also provide them with nutritious chicken egg and meat for their own consumption. Performance of native fowl can be improved by change in husbandry, feeding, and better health cover. However, genetic improvement may be made either through selection and crossbreeding or by utilisation of both selection and crossbreeding. Improvement through selection may be time consuming but the improvement will be permanent. Through crossbreeding improvement may be faster but research has to aim for the production of native-type birds with higher production potential. In the present review efforts have been made to present the importance of native fowl to rural economy and their improvement for higher production performance.
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Affiliation(s)
- Mahendra Kumar Padhi
- Regional Centre, ICAR-Central Avian Research Institute, Baramunda, Bhubaneswar 751003, India
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Red Junglefowl (Gallus gallus) selected for low fear of humans are larger, more dominant and produce larger offspring. Animal 2014; 8:1498-505. [PMID: 24910136 DOI: 10.1017/s1751731114001426] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Many traits associated with domestication are suggested to have developed as correlated responses to reduced fear of humans. Tameness may have reduced the stress of living in human proximity and improved welfare in captivity. We selected Red Junglefowl (ancestors of all domestic chickens) for four generations on high or low fear towards humans, mimicking an important aspect of the earliest period of domestication, and tested birds from the third and fourth generation in three different social tests. Growth and plumage condition, as well as size of eggs and offspring were also recorded, as indicators of some aspects of welfare. Birds selected for low fear had higher weight, laid larger eggs and generated larger offspring, and had a better plumage condition. In a social dominance test they also performed more aggressive behaviour and received less of the same, regardless of whether the restricted resource was feed or not. Hence, dominance appeared to increase as a consequence of reduced fear of humans. Furthermore, egg size and the weight of the offspring were larger in the less fearful birds, and plumage condition better, which could be interpreted as the less fearful animals being better adapted to the environment in which they were selected.
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Gholami M, Erbe M, Gärke C, Preisinger R, Weigend A, Weigend S, Simianer H. Population genomic analyses based on 1 million SNPs in commercial egg layers. PLoS One 2014; 9:e94509. [PMID: 24739889 PMCID: PMC3989219 DOI: 10.1371/journal.pone.0094509] [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: 11/08/2013] [Accepted: 03/17/2014] [Indexed: 01/07/2023] Open
Abstract
Identifying signatures of selection can provide valuable insight about the genes or genomic regions that are or have been under selective pressure, which can lead to a better understanding of genotype-phenotype relationships. A common strategy for selection signature detection is to compare samples from several populations and search for genomic regions with outstanding genetic differentiation. Wright's fixation index, FST, is a useful index for evaluation of genetic differentiation between populations. The aim of this study was to detect selective signatures between different chicken groups based on SNP-wise FST calculation. A total of 96 individuals of three commercial layer breeds and 14 non-commercial fancy breeds were genotyped with three different 600K SNP-chips. After filtering a total of 1 million SNPs were available for FST calculation. Averages of FST values were calculated for overlapping windows. Comparisons of these were then conducted between commercial egg layers and non-commercial fancy breeds, as well as between white egg layers and brown egg layers. Comparing non-commercial and commercial breeds resulted in the detection of 630 selective signatures, while 656 selective signatures were detected in the comparison between the commercial egg-layer breeds. Annotation of selection signature regions revealed various genes corresponding to productions traits, for which layer breeds were selected. Among them were NCOA1, SREBF2 and RALGAPA1 associated with reproductive traits, broodiness and egg production. Furthermore, several of the detected genes were associated with growth and carcass traits, including POMC, PRKAB2, SPP1, IGF2, CAPN1, TGFb2 and IGFBP2. Our approach demonstrates that including different populations with a specific breeding history can provide a unique opportunity for a better understanding of farm animal selection.
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Affiliation(s)
- Mahmood Gholami
- Animal Breeding and Genetics Group, Department of Animal Sciences, Georg-August-University Göttingen, Göttingen, Germany
- * E-mail:
| | - Malena Erbe
- Animal Breeding and Genetics Group, Department of Animal Sciences, Georg-August-University Göttingen, Göttingen, Germany
| | - Christian Gärke
- Animal Breeding and Genetics Group, Department of Animal Sciences, Georg-August-University Göttingen, Göttingen, Germany
| | | | - Annett Weigend
- Institute of Farm Animal Genetics (ING), Friedrich-Loeffler-Institut (FLI), Neustadt, Germany
| | - Steffen Weigend
- Institute of Farm Animal Genetics (ING), Friedrich-Loeffler-Institut (FLI), Neustadt, Germany
| | - Henner Simianer
- Animal Breeding and Genetics Group, Department of Animal Sciences, Georg-August-University Göttingen, Göttingen, Germany
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Phylogenetic Analysis of South East Asian Countries Chickens Based on Mitochondrial DNA Variations. J Poult Sci 2014. [DOI: 10.2141/jpsa.0130190] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Roth LSV, Lind O. The impact of domestication on the chicken optical apparatus. PLoS One 2013; 8:e65509. [PMID: 23776492 PMCID: PMC3680433 DOI: 10.1371/journal.pone.0065509] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2013] [Accepted: 04/26/2013] [Indexed: 11/19/2022] Open
Abstract
Domestication processes tend to release animals from natural selection and favour traits desired by humans, such as food-production and co-operative behaviour. A side effect of such selective breeding is the alteration of unintended traits. In this paper, we investigate how active selection for egg production in chickens has affected the visual system, in particular the optical sensitivity that relates to the ability of chickens to see in dim light. We measured eye dimensions as well as the pupil diameter at different light intensities (the steady state pupil dynamics), in adult male and female White Leghorns and the closest relatives to their ancestor, the Red Junglefowls. With this information, we calculated the focal length and optical sensitivity (f-number) of the eyes. Males have larger eyes than females in both breeds and White Leghorn eyes are larger than those of Red Junglefowls in both sexes. The steady state pupil dynamics is less variable, however, the combination of pupil dynamics and eye size gives a higher optical sensitivity in Red Junglefowl eyes than in White Leghorns at light intensities below approximately 10 cd/m2. While eye size and focal length match the larger body size in White Leghorns compared to Red Junglefowls, the steady state pupil dynamics do not. The reason for this is likely to be that eye morphology and the neuro-muscular control of the pupil have been affected differently by the strong selection for egg production and the simultaneous release of the selection pressure for high performing vision. This study is the first description of how optical sensitivity has changed in a domesticated species and our results demonstrate important considerations regarding domestication processes and sensory ability.
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Affiliation(s)
- Lina S V Roth
- Department of Physics, Chemistry and Biology, Linköping University, Linköping, Sweden.
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Agnvall B, Jöngren M, Strandberg E, Jensen P. Heritability and genetic correlations of fear-related behaviour in Red Junglefowl--possible implications for early domestication. PLoS One 2012; 7:e35162. [PMID: 22536354 PMCID: PMC3334967 DOI: 10.1371/journal.pone.0035162] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2011] [Accepted: 03/13/2012] [Indexed: 11/26/2022] Open
Abstract
Domesticated species differ from their wild ancestors in a number of traits, generally referred to as the domesticated phenotype. Reduced fear of humans is assumed to have been an early prerequisite for the successful domestication of virtually all species. We hypothesized that fear of humans is linked to other domestication related traits. For three generations, we selected Red Junglefowl (ancestors of domestic chickens) solely on the reaction in a standardized Fear of Human-test. In this, the birds were exposed for a gradually approaching human, and their behaviour was continuously scored. This generated three groups of animals, high (H), low (L) and intermediate (I) fearful birds. The birds in each generation were additionally tested in a battery of behaviour tests, measuring aspects of fearfulness, exploration, and sociality. The results demonstrate that the variation in fear response of Red Junglefowl towards humans has a significant genetic component and is genetically correlated to behavioural responses in other contexts, of which some are associated with fearfulness and others with exploration. Hence, selection of Red Junglefowl on low fear for humans can be expected to lead to a correlated change of other behavioural traits over generations. It is therefore likely that domestication may have caused an initial suite of behavioural modifications, even without selection on anything besides tameness.
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Affiliation(s)
- Beatrix Agnvall
- IFM Biology, Division of Zoology, Avian Behavioural Genomics and Physiology Group Linköping University, Linköping, Sweden
| | - Markus Jöngren
- IFM Biology, Division of Zoology, Avian Behavioural Genomics and Physiology Group Linköping University, Linköping, Sweden
| | - Erling Strandberg
- Department of Animal Breeding and Genetics, Swedish University of Agricultural, Sciences, Uppsala, Sweden
| | - Per Jensen
- IFM Biology, Division of Zoology, Avian Behavioural Genomics and Physiology Group Linköping University, Linköping, Sweden
- * E-mail:
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Current state of knowledge on indigenous chicken genetic resources of the tropics: domestication, distribution and documentation of information on the genetic resources. WORLD POULTRY SCI J 2012. [DOI: 10.1017/s0043933912000025] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Eklund B, Jensen P. Domestication effects on behavioural synchronization and individual distances in chickens (Gallus gallus). Behav Processes 2010; 86:250-6. [PMID: 21187131 DOI: 10.1016/j.beproc.2010.12.010] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2010] [Revised: 12/09/2010] [Accepted: 12/20/2010] [Indexed: 10/18/2022]
Abstract
Behavioural synchrony (allelomimetic behaviour), and inter-individual distances are aspects of social and anti-predator strategies which may have been affected by domestication. Chickens are known to adjust synchronization and inter-individual distances depending on behaviour. We hypothesized that White Leghorn (WL) chickens would show less synchronized behaviour than the ancestor, the red jungle fowl (RJF). Sixty birds, 15 female and 15 male WL and the same number of RJF (28 weeks old) were studied in groups of three in furnished pens (1 m×2 m) for 24 consecutive hours per group, following 24 h of habituation. Video tapes covering 4 h per group (dawn, 9-10 am, 1-2 pm and dusk) were analysed. Red junglefowl perched significantly more, but there were no breed effects on the frequency or daily rhythm of any other activities, or on average inter-individual distances. Red junglefowl were more synchronized during perching and a tendency for the same was found for social behaviour. After performance of the two most synchronized behaviours, perching and comfort behaviour, individual distance increased more for RJF than WL. According to this study domestication of chickens appears not to have significantly altered the relative frequencies of different activities or average inter-individual distances, but have caused some changes in behavioural synchronization and maintenance of activity-specific inter-individual distances in chickens. The changes may indicate an adaptive response to captivity and domestication.
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Affiliation(s)
- Beatrix Eklund
- IFM Biology, Division of Zoology, Avian Behavioural Genomics and Physiology Group, Linköping University, 581 83 Linköping University, Sweden
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Cronin MA, Renecker LA, Patton JC. Genetic variation in domestic and wild elk (Cervus elaphus)1. J Anim Sci 2009; 87:829-34. [DOI: 10.2527/jas.2008-1185] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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SULANDARI SRI, ZEIN MOCHSYAMSULARIFIN, SARTIKA TIKE. Molecular Characterization of Indonesian Indigenous Chickens based on Mitochondrial DNA Displacement (D)-loop Sequences. HAYATI JOURNAL OF BIOSCIENCES 2008. [DOI: 10.4308/hjb.15.4.145] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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