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Alessandroni L, Sagratini G, Gagaoua M. Integrated Chemometrics and Data-Independent Acquisition Proteomics for the Discovery of Meat Authenticity Biomarkers: A Study on Early Post-Mortem Pectoralis major Muscle Proteomes of Ross 308 and Ranger Classic Chicken Produced by Organic versus Antibiotic-Free Farming Systems. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:20153-20170. [PMID: 39213608 DOI: 10.1021/acs.jafc.4c03651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/04/2024]
Abstract
Many factors, such as the farming systems and preslaughter rearing practices, can influence the physiological and metabolic functions of poultry with consequent effects on poultry meat quality. In this trial, label-free shotgun proteomics was used to analyze the early post-mortem Pectoralis major muscle proteomes of Ross 308 and Ranger Classic chicken strains raised under two divergent farming systems these being organic and antibiotic-free. The combination of chemometrics using partial-least-square discriminant analysis (PLS-DA) and shotgun proteomics allowed clear discrimination between the different groups. Chicken strains were discriminated by differences in the abundance of 73 and 62 proteins within the antibiotic-free and organic farming systems, respectively. The abundances of 71 and 52 proteins were impacted by the farming system within the Ross 308 and Ranger Classic chicken strains, respectively. The analyses allowed for the proposal of several putative biomarkers of meat authenticity, which were found to be related to muscle structure and energy metabolism pathways. This study is a significant step forward in elucidating the potential of proteomics profiling and chemometrics in chicken meat, which may provide opportunities for the efficient assessment of chicken authenticity.
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Affiliation(s)
- Laura Alessandroni
- Chemistry Interdisciplinary Project (ChIP), School of Pharmacy, University of Camerino, Via Madonna delle Carceri, Camerino 62032, Italy
| | - Gianni Sagratini
- Chemistry Interdisciplinary Project (ChIP), School of Pharmacy, University of Camerino, Via Madonna delle Carceri, Camerino 62032, Italy
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Afrin A, Ahmed T, Lahiry A, Rahman S, Dey B, Hashem MA, Das SC. Profitability and meat quality of fast-, medium- and slow-growing meat-type chicken genotypes as affected by growth and length of rearing. Saudi J Biol Sci 2024; 31:104025. [PMID: 38946845 PMCID: PMC11214509 DOI: 10.1016/j.sjbs.2024.104025] [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: 12/22/2023] [Revised: 05/12/2024] [Accepted: 05/19/2024] [Indexed: 07/02/2024] Open
Abstract
The study aimed to evaluate the profitability, meat quality, and carcass parameters of fast-, medium-, and slow-growing meat-type chicken genotypes of Bangladesh. Nine hundred DOCs were randomly allocated to 6 treatments: T1 = commercial broilers, T2 = CPF-3 (central poultry farm-3), T3 = cockerel, T4 = sonali, T5 = NDD (non-descriptive desi), and T6 = hilly, having 5 replications of 30 chicks each. Birds were reared under complete confinement until their respective market ages (commercial broilers = 35 d; CPF-3 = 45 d; cockerel = 56 d, and hilly = 77 d; sonali = 63 d and NDD = 77 d) and fed commercial broiler diets. Net returns, meat quality, growth, and carcass yield were measured. NDD and hilly showed significantly the highest profitability and superior meat quality. Commercial broilers exhibited the highest final body weight (2355.59 g/b) followed by hilly (1241 g/b) and NDD (1006 g/b), while CPF-3 (860.21 g/b), cockerel (915.49 g/b), and sonali (788.43 g/b) had lower final body weights at their respective market ages. Commercial broilers had the highest carcass weight and dressing yields, followed by hilly and cockerel, and lower in sonali, CPF-3, and NDD. The study concluded that rearing slow- or medium-growing NDD and hilly is superior to fast-growing commercial broilers or CPF-3 regarding profitability, and meat quality. The results of current findings help small-scale farmers in choosing a suitable meat-type chicken that yields better profitability and also for the consumers who wish to pay a fair price for the birds, considering the meat quality specific to each chicken genotype.
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Affiliation(s)
- Afifa Afrin
- Department of Poultry Science, Faculty of Animal Husbandry, Bangladesh Agricultural University (BAU), Mymensing 2022, Bangladesh
| | - Tanvir Ahmed
- Department of Poultry Science, Faculty of Animal Husbandry, Bangladesh Agricultural University (BAU), Mymensing 2022, Bangladesh
| | - Ankon Lahiry
- Department of Poultry Science, Faculty of Animal Husbandry, Bangladesh Agricultural University (BAU), Mymensing 2022, Bangladesh
| | - Shahina Rahman
- Department of Poultry Science, Faculty of Animal Husbandry, Bangladesh Agricultural University (BAU), Mymensing 2022, Bangladesh
| | - Bapon Dey
- Department of Poultry Science, Faculty of Animal Husbandry, Bangladesh Agricultural University (BAU), Mymensing 2022, Bangladesh
| | - Md. Abul Hashem
- Department of Animal Science, Faculty of Animal Husbandry, Bangladesh Agricultural University (BAU), Mymensing 2022, Bangladesh
| | - Shubash Chandra Das
- Department of Poultry Science, Faculty of Animal Husbandry, Bangladesh Agricultural University (BAU), Mymensing 2022, Bangladesh
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Chang C, Zhao W, Zhang Q, Wang X, Zhang J, Yan Z, Cao J, Liu H, Geng A. Dietary Crude Protein and Lysine Levels Affect Meat Quality and Myofiber Characteristic of Slow-Growing Chicken. Animals (Basel) 2024; 14:2068. [PMID: 39061530 PMCID: PMC11273887 DOI: 10.3390/ani14142068] [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: 05/18/2024] [Revised: 06/28/2024] [Accepted: 07/01/2024] [Indexed: 07/28/2024] Open
Abstract
This study aimed to investigate the effects of dietary crude protein (CP) and lysine levels on growth performance, slaughter performance, meat quality, and myofiber characteristics of slow-growing chicken. A 3 × 3 factorial experiment was arranged, and the chickens were fed with 3 levels of dietary CP (16.0%, 17.0%, 18.0%) and 3 levels of dietary lysine (0.69%, 0.84%, 0.99%). A total of 540 8-week-old Beijing-You Chicken (BYC) female growing chickens were randomly allocated to 9 groups, 5 replicates per group, and 12 chickens per replicate. The birds were randomly allocated to one of the 9 experimental diets. Growth performance, slaughter performance, meat quality, and myofiber characteristics were determined at 16 weeks of age. The results showed that dietary CP level and the interaction of dietary CP and lysine levels affected average feed intake (AFI) (p < 0.05). The AFI in the 16.0% CP and 17.0% CP groups was higher than in the 18.0% CP group (p < 0.05). Dietary CP levels significantly affected body weight gain (BWG) (p < 0.05) at 9 to 16 weeks. The 18.0% CP group had the highest BWG (93.99 g). Dietary CP levels affected the percentage of leg muscle yield, and the percentage of leg muscle yield of the 16.0% CP group was significantly lower than that in the other two groups (p < 0.05). Dietary CP and lysine levels alone and their interactions did not affect pH24h, drip loss, and cooking loss of breast muscle (p > 0.05). The shear force of the 18.0% CP group (29.55 N) was higher than that in the other two groups (p < 0.01). Dietary CP level affected myofiber characteristic (p < 0.01), with the lowest myofiber density (846.35 p·mm-2) and the largest myofiber diameter (30.92 μm) at 18.0% CP level. Dietary lysine level affected myofiber diameter, endomysium thickness, perimysium thickness (p < 0.01), with the largest myofiber diameter (29.29 μm) obtained at 0.84% lysine level, the largest endomysium thickness (4.58 μm) at 0.69% lysine level, and the largest perimysium thickness (9.26 μm) at 0.99% lysine level. Myofiber density was negatively correlated with myofiber diameter and endomysium thickness (R = -0.883, R = -0.523, p < 0.01); perimysium thickness had a significant negative correlation with shear force (R = -0.682, p < 0.05). Therefore, reducing dietary CP level and adding appropriate lysine can reduce myofiber diameter and increase perimysium thickness, reducing shear force and improving meat tenderness. A high lysine level (0.99%) in the low-CP (16.0%) diet can improve meat tenderness by regulating the myofiber characteristic without affecting production performance.
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Affiliation(s)
| | | | | | | | | | | | | | - Huagui Liu
- Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China; (C.C.); (W.Z.); (Q.Z.); (X.W.); (J.Z.); (Z.Y.); (J.C.)
| | - Ailian Geng
- Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China; (C.C.); (W.Z.); (Q.Z.); (X.W.); (J.Z.); (Z.Y.); (J.C.)
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Meira M, Afonso IM, Cruz R, Lopes JC, Martins RS, Domingues J, Ribeiro V, Dantas R, Casal S, Brito NV. Carcass Yields and Meat Composition of Roosters of the Portuguese Autochthonous Poultry Breeds: "Branca", "Amarela", "Pedrês Portuguesa", and "Preta Lusitânica". Foods 2023; 12:4020. [PMID: 37959139 PMCID: PMC10647523 DOI: 10.3390/foods12214020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 10/19/2023] [Accepted: 10/31/2023] [Indexed: 11/15/2023] Open
Abstract
Poultry meat is an important part of the human diet, and the valorisation of autochthonous breeds is a determinant for the sustainability of the rural areas. The increasing demand for niche products demands for better knowledge of the carcass characteristics and meat quality of these local populations. The present study aims to characterise the roosters' meat from the "Branca" (BR), "Amarela" (AM), "Pedrês Portuguesa" (PP), and "Preta Lusitânica" (PL) breeds. A total of 80 birds (n = 20 per breed) between 38 and 42 weeks old were slaughtered. The physicochemical and nutritional composition were determined in the breast and drumstick meat. The meat of the PL breed had a higher (p ≤ 0.05) pH value, the AM meat revealed a water-holding capacity (WHC) of superior value and moisture content (p ≤ 0.05), while the BR breed had the highest (p ≤ 0.05) ash content. On the other hand, it was observed that the PP meat had a higher (p ≤ 0.05) yellowness index (b*). The breast meat exhibited, in all breeds, a lower pH value, WHC, redness (a*), and lipid content and greater (p ≤ 0.05) lightness (L*), b*, moisture, and ash and protein contents compared to the drumstick. Furthermore, it presented higher (p ≤ 0.05) K, P, and Mg contents and a superior proportion of total and sensorial relevant amino acids. Regarding the fatty acid profile, the breed differences were more significant in the drumstick, with the AM breed lipids presenting a higher (p ≤ 0.05) percentage of MUFAs in the fat, a lower atherogenic index, and a higher (p ≤ 0.05) value for the hypocholesterolemic/hypercholesterolemic fatty acids ratio, while the BR breed lipids presented a higher (p ≤ 0.05) percentage of PUFAs and PUFAs/SFAs ratio and a lower n-6/n-3 ratio. Considering the results obtained, it can be concluded that the meat from these breeds is a wholesome dietary option, distinguished by a favourable overall nutritional composition marked by elevated protein content, reduced lipid amounts, and amino and fatty acid profiles with desirable nutritional indices.
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Affiliation(s)
- Márcio Meira
- Escola Superior Agrária, Instituto Politécnico de Viana do Castelo, Rua D. Mendo Afonso, 147 Refóios do Lima, 4990-706 Ponte de Lima, Portugal; (M.M.); (J.D.)
| | - Isabel M. Afonso
- CISAS, Escola Superior Agrária, Instituto Politécnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun’Álvares, 4900-347 Viana do Castelo, Portugal; (I.M.A.); (J.C.L.)
| | - Rebeca Cruz
- Requimte—LAQV, Laboratório de Bromatologia e Hidrologia, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; (R.C.); (R.S.M.); (S.C.)
| | - Júlio Cesar Lopes
- CISAS, Escola Superior Agrária, Instituto Politécnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun’Álvares, 4900-347 Viana do Castelo, Portugal; (I.M.A.); (J.C.L.)
| | - Raquel S. Martins
- Requimte—LAQV, Laboratório de Bromatologia e Hidrologia, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; (R.C.); (R.S.M.); (S.C.)
| | - Jéssica Domingues
- Escola Superior Agrária, Instituto Politécnico de Viana do Castelo, Rua D. Mendo Afonso, 147 Refóios do Lima, 4990-706 Ponte de Lima, Portugal; (M.M.); (J.D.)
| | - Virgínia Ribeiro
- AMIBA—Associação dos Criadores de Bovinos de Raça Barrosã, 4730-260 Vila Verde, Portugal; (V.R.); (R.D.)
| | - Rui Dantas
- AMIBA—Associação dos Criadores de Bovinos de Raça Barrosã, 4730-260 Vila Verde, Portugal; (V.R.); (R.D.)
| | - Susana Casal
- Requimte—LAQV, Laboratório de Bromatologia e Hidrologia, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; (R.C.); (R.S.M.); (S.C.)
| | - Nuno V. Brito
- CISAS, Escola Superior Agrária, Instituto Politécnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun’Álvares, 4900-347 Viana do Castelo, Portugal; (I.M.A.); (J.C.L.)
- AMIBA—Associação dos Criadores de Bovinos de Raça Barrosã, 4730-260 Vila Verde, Portugal; (V.R.); (R.D.)
- 1H-TOXRUN—One Health Toxicology Research Unit, University Institute of Health Sciences, CESPU (Cooperativa Ensino Superior Politécnico e Universitário), CRL, 4585-116 Gandra, Portugal
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Choi J, Kong B, Bowker BC, Zhuang H, Kim WK. Nutritional Strategies to Improve Meat Quality and Composition in the Challenging Conditions of Broiler Production: A Review. Animals (Basel) 2023; 13:ani13081386. [PMID: 37106949 PMCID: PMC10135100 DOI: 10.3390/ani13081386] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 04/14/2023] [Accepted: 04/16/2023] [Indexed: 04/29/2023] Open
Abstract
Poultry meat is becoming one of the most important animal protein sources for human beings in terms of health benefits, cost, and production efficiency. Effective genetic selection and nutritional programs have dramatically increased meat yield and broiler production efficiency. However, modern practices in broiler production result in unfavorable meat quality and body composition due to a diverse range of challenging conditions, including bacterial and parasitic infection, heat stress, and the consumption of mycotoxin and oxidized oils. Numerous studies have demonstrated that appropriate nutritional interventions have improved the meat quality and body composition of broiler chickens. Modulating nutritional composition [e.g., energy and crude protein (CP) levels] and amino acids (AA) levels has altered the meat quality and body composition of broiler chickens. The supplementation of bioactive compounds, such as vitamins, probiotics, prebiotics, exogenous enzymes, plant polyphenol compounds, and organic acids, has improved meat quality and changed the body composition of broiler chickens.
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Affiliation(s)
- Janghan Choi
- US National Poultry Research Center, USDA-ARS, Athens, GA 30605, USA
- Department of Poultry Science, University of Georgia, Athens, GA 30602, USA
| | - Byungwhi Kong
- US National Poultry Research Center, USDA-ARS, Athens, GA 30605, USA
| | - Brian C Bowker
- US National Poultry Research Center, USDA-ARS, Athens, GA 30605, USA
| | - Hong Zhuang
- US National Poultry Research Center, USDA-ARS, Athens, GA 30605, USA
| | - Woo Kyun Kim
- Department of Poultry Science, University of Georgia, Athens, GA 30602, USA
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Firman CAB, Inhuber V, Cadogan DJ, Van Wettere WHEJ, Forder REA. Effect of in ovo creatine monohydrate on hatchability, post-hatch performance, breast muscle yield and fiber size in chicks from young breeder flocks. Poult Sci 2023; 102:102447. [PMID: 36680864 PMCID: PMC10014348 DOI: 10.1016/j.psj.2022.102447] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 12/15/2022] [Accepted: 12/16/2022] [Indexed: 12/27/2022] Open
Abstract
Younger broiler breeder flocks produce smaller eggs containing smaller yolks, with potentially lower energy reserves for the developing chick. Creatine is a naturally occurring energy source and is abundant in metabolically active tissues; providing this to chicks in ovo should provide additional energy to improve hatchability and post-hatch growth. Thus, post-hatch performance of male and female chicks hatched from younger breeder flocks supplemented with creatine monohydrate (CrM) in ovo was investigated. Four hundred eggs from Ross 308 breeder hens aged 27 to 29 wk were collected and at d 14 assigned to a treatment group and received 1) no injection, 2) 0.75% saline injection, or 3) 8.16 mg creatine monohydrate in 0.75% saline. At hatch 72 birds (24/treatment) were euthanized and BW, breast muscle, heart and liver weight were obtained, and breast muscle tissue was placed in 10% buffered formalin. Birds were then placed in raised metal pens (24 pens; 10-11 birds/pen; 8 replicates/treatment) and grown to d 42 with BW and pen feed intake measured once a week. At d 42, ninty-six birds were euthanized (2 male and 2 female/pen) and the process occurred as at hatch. Body composition was obtained for 48 birds (2/pen; 1 male,1 female) with a dual energy X-ray absorptiometry (DXA) scanner. Breast muscle tissue was processed for histological analysis and breast muscle fiber parameters were analyzed by ImageJ. While not statistically significant, the CrM treatment group saw an improved hatch rate (CrM: 93.5%, Saline: 88.6%, Control: 88.8%) and reduced early post hatch mortality. Chicks given in ovo CrM had significantly increased creatine concentrations in both liver and heart tissue at hatch compared to those in the saline and control groups. BW, BW gain, and final body composition parameters were not statistically different between treatments and in ovo CrM did not affect breast muscle fiber number or area. The creatine injection likely improved the energy status of the growing embryo resulting in the improved hatch rate but leaving little reserves for post-hatch growth.
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Affiliation(s)
- Corey-Ann B Firman
- School of Animal and Veterinary Sciences, The University of Adelaide, Roseworthy Campus, Roseworthy, South Australia, 5371, Australia
| | - Vivienne Inhuber
- AlzChem Trostberg GmbH, Dr.-Albert-Frank-Str. 32, 83308 Trostberg, Germany
| | | | - William H E J Van Wettere
- School of Animal and Veterinary Sciences, The University of Adelaide, Roseworthy Campus, Roseworthy, South Australia, 5371, Australia
| | - Rebecca E A Forder
- School of Animal and Veterinary Sciences, The University of Adelaide, Roseworthy Campus, Roseworthy, South Australia, 5371, Australia.
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Ma S, Zhang K, Shi S, Li X, Che C, Chen P, Liu H. Low-protein diets supplemented with isoleucine alleviate lipid deposition in broilers through activating 5' adenosine monophosphate-activated protein kinase and janus kinase 2/signal transducer and activator of transcription 3 signaling pathways. Poult Sci 2022; 102:102441. [PMID: 36599221 PMCID: PMC9823210 DOI: 10.1016/j.psj.2022.102441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 12/04/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022] Open
Abstract
This study aimed to evaluate the effect of isoleucine (Ile) on growth performance, meat quality and lipid metabolism of broilers fed a low-protein diet (LPD). The 396 one-day-old male Cobb broilers were allocated to 4 treatment groups as follows: control diet (CON), LPD, LPD + 0.13% Ile (LPD-LI) and LPD + 0.26% Ile (LPD-HI), with nine replicates of 11 broilers each for 42 d. The Ile increased average daily gain, average daily feed intake, fiber density and the mRNA level of myosin heavy chain (MyHC)-I in breast muscle, and decreased feed to gain ratio, shear force, fiber diameter and the mRNA level of MyHC-IIb in breast muscle, which were impaired by the LPD. Compared to the LPD group, broilers in LPD-LI and LPD-HI groups had lower serum lipid levels, liver fat content, abdominal adipose percentage and mRNA levels of peroxisome proliferator-activated receptor-γ, CCAAT/enhancer binding protein-α, ki-67, topoisomerase II alpha (TOP2A) and thioredoxin-dependent peroxidase 2 in abdominal adipose and liver X receptors-α, sterol regulatory element binding protein 1 (SREBP1), acetyl-CoA carboxylase (ACC) and fatty acid synthase (FAS) in liver, and higher mRNA levels of peroxisome proliferator activated receptor-α, carnitine palmitoyl-transferase 1 (CPT-1), and acyl-CoA oxidase 1 (ACOX1) in liver, which were equal to the CON levels. A LPD supplemented with Ile decreased enzyme activities of ACC and FAS in liver and glycerol-3-phosphate dehydrogenase and TOP2A in abdominal adipose, and increased enzyme activities of CPT-1 and ACOX1 in liver. Furthermore, Ile supplementation enhanced the mRNA level of leptin receptor and protein levels of phospho-5' adenosine monophosphate-activated protein kinase (AMPK), mechanistic target of rapamycin, ribosomal protein 70 S6 kinase, janus kinase 2 (JAK2), and signal transducer and activator of transcription 3 (STAT3), and decreased the protein level of SREBP1 in the liver of broilers in LPD group. In conclusion, dietary supplementation with Ile to 0.83% could improve growth performance and meat quality and alleviate lipid deposition of broilers fed a LPD through activating AMPK and JAK2/STAT3 signaling pathways.
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Affiliation(s)
- Shengnan Ma
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China
| | - Kai Zhang
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China
| | - Shuyan Shi
- Qingdao Yebio Bioengineering Co., Ltd., Qingdao 266114, China
| | - Xuemin Li
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China
| | - Chuanyan Che
- College of Animal Science, Anhui Science and Technology University, Fengyang 233100, China
| | - Peng Chen
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China
| | - Huawei Liu
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China.
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Marchewka J, Sztandarski P, Solka M, Louton H, Rath K, Vogt L, Rauch E, Ruijter D, de Jong IC, Horbańczuk JO. Linking key husbandry factors to the intrinsic quality of broiler meat. Poult Sci 2022; 102:102384. [PMID: 36565632 PMCID: PMC9801217 DOI: 10.1016/j.psj.2022.102384] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 11/24/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022] Open
Abstract
Broiler farming is the fastest-growing animal production sector and broiler meat is the second most-consumed meat in the world. The intensification of broiler production often has a negative impact on the meat quality and carcass characteristics. Consumers, however, expect a quality product from animals reared extensively on farms providing good animal welfare, often intuitively associated with extensive farming practices. Therefore, this literature review investigates how the critical factors contributing to the degree of extensiveness of broiler production affect the quality of meat. We used the data from scientific articles published in the years 2012-2021 to analyze the effect of diet (n = 409), genetics (n = 86), enrichment (n = 25), and stocking density (n = 20) on meat quality and carcass characteristics. Minerals and microelements supplementation in the diet improved all the meat quality aspects: sensory, physical, and chemical in most studies. Minerals and enzymes in the diet had beneficial effects on carcass characteristics, unlike feed restriction and ingredient substitutions. The impact of outdoor access on meat quality and carcass characteristics was most frequently examined, in contrast to the use of perches or effects of litter quality. Overall, enrichment did not affect the meat's sensory or physical parameters, but outdoor access improved its lipid composition. Lower stocking density deteriorated intramuscular fat content, decreased tenderness and juiciness, yet lowered cooking and drip loss, and increased carcass and breast muscle yields. When it comes to genetics, in general, slow growing broiler strains have better meat quality parameters, especially regarding yellowness (b*), redness (a*), cooking and drip loss. Our review shows that the factors which contribute to extensiveness of broiler production systems and birds' welfare also affect meat quality and the carcass characteristics.
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Affiliation(s)
- Joanna Marchewka
- Institute of Genetics and Animal Biotechnology, Polish Academy of Sciences, Jastrzebiec, 05-552 Magdalenka, Poland
| | - Patryk Sztandarski
- Institute of Genetics and Animal Biotechnology, Polish Academy of Sciences, Jastrzebiec, 05-552 Magdalenka, Poland
| | - Magdalena Solka
- Institute of Genetics and Animal Biotechnology, Polish Academy of Sciences, Jastrzebiec, 05-552 Magdalenka, Poland,Corresponding authors:
| | - Helen Louton
- Animal Health and Animal Welfare, Faculty of Agricultural and Environmental Sciences, University of Rostock, 18059 Rostock, Germany
| | - Katharina Rath
- Quality assurance animal welfare, Naturland – Association for Organic Agriculture e.V., 82166 Graefelfing, Germany
| | - Lukas Vogt
- Quality assurance animal welfare, Naturland – Association for Organic Agriculture e.V., 82166 Graefelfing, Germany
| | - Elke Rauch
- Chair of Animal Welfare, Ethology, Animal Hygiene and Animal Husbandry, Department of Veterinary Sciences, Faculty of Veterinary Medicine, 80539 Munich, Germany
| | - Dionne Ruijter
- Wageningen Livestock Research, Wageningen University & Research, 6700 AH Wageningen, The Netherlands
| | - Ingrid C. de Jong
- Wageningen Livestock Research, Wageningen University & Research, 6700 AH Wageningen, The Netherlands
| | - Jarosław O. Horbańczuk
- Institute of Genetics and Animal Biotechnology, Polish Academy of Sciences, Jastrzebiec, 05-552 Magdalenka, Poland
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Galli GM, Strapazzon JV, Marchiori MS, Molosse VL, Deolindo GL, Fracasso M, Copetti PM, Morsch VM, Baldissera MD, Mendes RE, Boiago MM, da Silva AS. Addition of a Blend Based on Zinc Chloride and Lignans of Magnolia in the Diet of Broilers to Substitute for a Conventional Antibiotic: Effects on Intestinal Health, Meat Quality, and Performance. Animals (Basel) 2022; 12:ani12233249. [PMID: 36496770 PMCID: PMC9740953 DOI: 10.3390/ani12233249] [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: 08/07/2022] [Revised: 10/27/2022] [Accepted: 11/03/2022] [Indexed: 11/25/2022] Open
Abstract
This study aimed to determine whether adding a blend based on zinc chloride and lignans from magnolia to the diet of broilers could replace conventional performance enhancers. For this study, 360 chickens were divided into four groups, with six repetitions per group (n = 15), as follows: CN, without promoter; GPC, control, 50 mg/kg of enramycin growth promoter; T-50, additive blend at a dose of 50 g/ton; and T-100, additive blend at a dose of 100 g/ton. Chickens fed with the additive blend at 50 g/ton showed a production efficiency index equal to that in the GPC group (p < 0.05). At 42 days, the lowest total bacterial count (TBC) was found in the T-100 group, followed by that in the GPC group (p < 0.001). For E. coli, the lowest count was observed in the T-100 group, followed by that in the CP and T-50 groups (p < 0.001). Higher villus/crypt ratios were observed in birds belonging to the T-100 and T-50 groups than in the GPC and NC groups (p < 0.001). Greater water retention was found in the T-50 group than in NC and T-100 groups (p < 0.048). The lowest water loss during cooking was also noted in the T-50 group (p < 0.033). We concluded that adding the antimicrobial blend, primarily at 50 g/ton, maintains the efficiency of the index of production and improves the intestinal health and meat quality of the birds.
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Affiliation(s)
- Gabriela M. Galli
- Animal Science Graduate Program, Universidade do Estado de Santa Catarina (UDESC), Beloni Trombeta Zanini, n 680-E, Santo Antonio 89815-630, SC, Brazil
| | - João V. Strapazzon
- Animal Science Graduate Program, Universidade do Estado de Santa Catarina (UDESC), Beloni Trombeta Zanini, n 680-E, Santo Antonio 89815-630, SC, Brazil
| | - Maiara S. Marchiori
- Department of Animal Science, Universidade do Estado de Santa Catarina (UDESC), Beloni Trombeta Zanini, n 680-E, Santo Antonio 89815-630, SC, Brazil
| | - Vitor L. Molosse
- Animal Science Graduate Program, Universidade do Estado de Santa Catarina (UDESC), Beloni Trombeta Zanini, n 680-E, Santo Antonio 89815-630, SC, Brazil
| | - Guilherme L. Deolindo
- Animal Science Graduate Program, Universidade do Estado de Santa Catarina (UDESC), Beloni Trombeta Zanini, n 680-E, Santo Antonio 89815-630, SC, Brazil
| | - Mateus Fracasso
- Graduate Program in Toxicological Biochemistry, Universidade Federal de Santa Maria (UFSM), Av. Roraima, n 1000, Cidade Universitária, Camobi 97105-900, RS, Brazil
| | - Priscila M. Copetti
- Graduate Program in Toxicological Biochemistry, Universidade Federal de Santa Maria (UFSM), Av. Roraima, n 1000, Cidade Universitária, Camobi 97105-900, RS, Brazil
| | - Vera M. Morsch
- Graduate Program in Toxicological Biochemistry, Universidade Federal de Santa Maria (UFSM), Av. Roraima, n 1000, Cidade Universitária, Camobi 97105-900, RS, Brazil
| | - Matheus D. Baldissera
- Graduate Program in Pharmacology, Universidade Federal de Santa Maria (UFSM), Av. Roraima, n 1000, Cidade Universitária, Camobi 97105-900, RS, Brazil
| | - Ricardo E. Mendes
- Laboratory of Veterinary Pathology, Instituto Federal Catarinense, Rodovia SC 283—km 17, Concordia 89703-720, SC, Brazil
| | - Marcel M. Boiago
- Animal Science Graduate Program, Universidade do Estado de Santa Catarina (UDESC), Beloni Trombeta Zanini, n 680-E, Santo Antonio 89815-630, SC, Brazil
- Department of Animal Science, Universidade do Estado de Santa Catarina (UDESC), Beloni Trombeta Zanini, n 680-E, Santo Antonio 89815-630, SC, Brazil
| | - Aleksandro S. da Silva
- Animal Science Graduate Program, Universidade do Estado de Santa Catarina (UDESC), Beloni Trombeta Zanini, n 680-E, Santo Antonio 89815-630, SC, Brazil
- Department of Animal Science, Universidade do Estado de Santa Catarina (UDESC), Beloni Trombeta Zanini, n 680-E, Santo Antonio 89815-630, SC, Brazil
- Correspondence: ; Tel.: +55-49-20499560
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10
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Haunshi S, Devatkal S, Prince LLL, Ullengala R, Ramasamy K, Chatterjee R. Carcass Characteristics, Meat Quality and Nutritional Composition of Kadaknath, a Native Chicken Breed of India. Foods 2022; 11:foods11223603. [PMID: 36429195 PMCID: PMC9689593 DOI: 10.3390/foods11223603] [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: 09/12/2022] [Revised: 10/11/2022] [Accepted: 10/14/2022] [Indexed: 11/16/2022] Open
Abstract
The study was carried out to investigate the carcass and meat quality traits and nutritional profile of the meat of the Kadaknath, a unique native chicken breed in comparison with commercial broilers. The yield of the carcass, breast and giblets of the Kadaknath was lesser (p < 0.01), while that of the legs, wings, back, and neck was higher (p < 0.01) than broilers. The meat of the Kadaknath was significantly (p < 0.0001) darker (42.44, 50.92) and more yellow (6.23, 8.99) than broilers. The decline in pH of the meat was lower (p < 0.001) in the Kadaknath compared to broilers. Kadaknath meat had more protein and less fat, moisture and ash content than broilers (p < 0.01). Furthermore, it was richer (p < 0.01) in 11 amino acids, including those which are known to impart a sweet and umami taste, than the meat of broilers (3 amino acids). Both genotypes were almost similar in meeting the daily requirements of indispensable amino acids of adult human. The study concluded that the Kadaknath differed in carcass and meat quality characteristics from the broilers, and the nutritional quality of Kadaknath meat in terms of high protein and less fat and higher content of amino acids (tasty type) was better in Kadaknath meat as compared to broiler meat.
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Affiliation(s)
- Santosh Haunshi
- ICAR-Directorate of Poultry Research, Rajendranagar, Hyderabad 500030, India
- Correspondence:
| | - Suresh Devatkal
- ICAR-National Research Centre on Meat, Chengicherla, Hyderabad 500092, India
| | | | - Rajkumar Ullengala
- ICAR-Directorate of Poultry Research, Rajendranagar, Hyderabad 500030, India
| | - Kannaki Ramasamy
- ICAR-Directorate of Poultry Research, Rajendranagar, Hyderabad 500030, India
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11
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Tavaniello S, Fatica A, Palazzo M, Zejnelhoxha S, Wu M, Marco LD, Salimei E, Maiorano G. Carcass and Meat Quality Traits of Medium-Growing Broiler Chickens Fed Soybean or Pea Bean and Raised under Semi-Intensive Conditions. Animals (Basel) 2022; 12:ani12202849. [PMID: 36290235 PMCID: PMC9597835 DOI: 10.3390/ani12202849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 10/10/2022] [Accepted: 10/17/2022] [Indexed: 11/23/2022] Open
Abstract
A study was carried out to evaluate the effect of the total replacement of flaked soybean (Glycine max L., SOY) with raw pea (Pisum sativum L., PEA) on the carcass and meat quality traits of two medium-growing broiler strains (Kabir Rosso Plus, KB; New Red, NR). Birds were housed in 20 pens (five replications/groups, six birds each). At 83 days of age, 40 birds (2/replication) were slaughtered and the pectoral muscle (PM) was removed for analyses. Diet did not affect slaughter weight, carcass traits and meat quality. A pea diet determined a significant increase of MUFA and a decrease of PUFA, n-3 and n-6 PUFA; hence, the pea-fed group had a lower PUFA/SFA and a higher n-6/n-3 ratios compared to the soy-fed. NR chickens were heavier, with higher carcass and cut weights (p < 0.01) compared to KB chickens. Interactions (p < 0.05) between factors were found for PM weight and yield. Meat from NR had a higher (p < 0.05) pH. Fatty acids were slightly affected by genotype. Replacing soybean with pea adversely affects meat fatty acid composition in terms of nutritional profile.
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12
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Indigenous, Yellow-Feathered Chickens Body Measurements, Carcass Traits, and Meat Quality Depending on Marketable Age. Animals (Basel) 2022; 12:ani12182422. [PMID: 36139280 PMCID: PMC9495107 DOI: 10.3390/ani12182422] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/08/2022] [Accepted: 09/09/2022] [Indexed: 11/21/2022] Open
Abstract
Given an increasing trend in slaughter and chilling for the sale of chickens in China, it is important to determine the marketable age of chickens for chilled sales. This study determined the effects of two marketable ages on the body measurements, carcass traits, and meat quality of yellow-feathered chickens. A total of 360 healthy one-day-old male Xueshan chickens were raised in six pens (straw-covered floor, numbered 1 to 6) and treated in the same manner (free access to food and water) until day 100. Sixty chickens from pens numbered 1 to 3 and 4 to 6 were selected to determine the body measurements, carcass traits, and meat quality at two slaughter ages (90 and 100 days), respectively. One hundred-day-old chickens had a higher body slope, cockscomb, keel, shank lengths, and higher live and dressed weights (p < 0.05). The abdomen skin follicle density, a*(redness) and b*(yellowness) values were higher in 100-day-old chickens (p < 0.05), whereas the 90-day-old chickens were characterized by better spotted skin. For the breast muscle, pH, shear force, a*, moisture, and protein and intramuscular fat contents were lower; moreover, L*(lightness) and b* were higher in 90-day-old chickens. In leg muscles, the pH, shear force, L*, b* and collagen content were lower; furthermore, the a* and moisture contents were higher in 90-day-old chickens (p < 0.05). These findings indicate that two marketable ages both have pros and cons, but 90 days chickens perform better on carcass appearance, and producers can adjust the marketable age to meet needs of different consumers. This study provides a unique idea and theoretical reference for breeding and marketing yellow-feathered chickens.
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13
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Zhu C, Yang J, Wu Q, Chen J, Yang X, Wang L, Jiang Z. Low Protein Diet Improves Meat Quality and Modulates the Composition of Gut Microbiota in Finishing Pigs. Front Vet Sci 2022; 9:843957. [PMID: 35656169 PMCID: PMC9152361 DOI: 10.3389/fvets.2022.843957] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 04/19/2022] [Indexed: 01/08/2023] Open
Abstract
This study investigated the effect of a low protein (LP) diet on growth performance, nitrogen emission, carcass traits, meat quality, and gut microbiota in finishing pigs. Fifty-four barrows (Duroc × Landrace × Yorkshire) were randomly assigned to three treatments with six replicates (pens) of three pigs each. The pigs were fed with either high protein (HP, 16% CP), medium protein (MP, 12% CP), and LP diets (10% CP), respectively. The LP diets did not influence the growth performance, but significantly decreased the plasma urea nitrogen contents and fecal nitrogen emission (P < 0.05). The LP diet significantly decreased the plasma contents of malondialdehyde (MDA) and increased the plasma glutathione (GSH) contents (P < 0.05). The LP diets significantly increased the backfat thickness at the first and last ribs, L* (lightness) value of meat color, and muscle fiber density in the longissimus dorsi (P < 0.05). The messenger RNA (mRNA) expression of fatty acid synthetase (FAS), peroxisome proliferator-activated receptor-gamma (PPARγ), leptin, and acetyl-CoA carboxylase (ACC) was significantly downregulated, while that of carnitine palmitoyltransferase 1 (CPT1) and myosin heavy chain (MYHC) IIx in the longissimus Dorsi muscle was significantly upregulated by LP diets (P < 0.05). The 16S sequencing analysis showed that the abundance of unidentified Bacteria at the phylum level, and Halanaerobium and Butyricicoccusat at the genus level in the colonic digesta were significantly decreased by LP diet (P < 0.05). The LP diet significantly decreased the observed species of α-diversity in both ileal and colonic microbiota (P < 0.05). Spearman correlation analysis identified a significant positive correlation between the abundance of the ileal genera Streptococcus and L* value at 24 and 48 h, and a significant negative correlation between unidentified_Ruminococcasceae in both ileum and colon with L* value at 24 h (P < 0.05). Collectively, the LP diet supplemented with lysine, methionine, threonine, and tryptophan could reduce the fecal nitrogen emission without affecting growth performance and improve meat quality by regulating the antioxidant capacity and gene expression involved in fat metabolism as well as modulating the gut microbiota composition in finishing pigs.
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Affiliation(s)
- Cui Zhu
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, State Key Laboratory of Livestock and Poultry Breeding, Ministry of Agriculture Key Laboratory of Animal Nutrition and Feed Science in South China, Guangdong Provincial Key Laboratory of Animal Breeding and Nutrition, Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
- School of Life Science and Engineering, Foshan University, Foshan, China
| | - Jingsen Yang
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, State Key Laboratory of Livestock and Poultry Breeding, Ministry of Agriculture Key Laboratory of Animal Nutrition and Feed Science in South China, Guangdong Provincial Key Laboratory of Animal Breeding and Nutrition, Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
- School of Life Science and Engineering, Foshan University, Foshan, China
| | - Qiwen Wu
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, State Key Laboratory of Livestock and Poultry Breeding, Ministry of Agriculture Key Laboratory of Animal Nutrition and Feed Science in South China, Guangdong Provincial Key Laboratory of Animal Breeding and Nutrition, Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Jingping Chen
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, State Key Laboratory of Livestock and Poultry Breeding, Ministry of Agriculture Key Laboratory of Animal Nutrition and Feed Science in South China, Guangdong Provincial Key Laboratory of Animal Breeding and Nutrition, Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Xuefen Yang
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, State Key Laboratory of Livestock and Poultry Breeding, Ministry of Agriculture Key Laboratory of Animal Nutrition and Feed Science in South China, Guangdong Provincial Key Laboratory of Animal Breeding and Nutrition, Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Li Wang
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, State Key Laboratory of Livestock and Poultry Breeding, Ministry of Agriculture Key Laboratory of Animal Nutrition and Feed Science in South China, Guangdong Provincial Key Laboratory of Animal Breeding and Nutrition, Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
- *Correspondence: Li Wang
| | - Zongyong Jiang
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, State Key Laboratory of Livestock and Poultry Breeding, Ministry of Agriculture Key Laboratory of Animal Nutrition and Feed Science in South China, Guangdong Provincial Key Laboratory of Animal Breeding and Nutrition, Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
- Zongyong Jiang
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14
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Shao M, Shi K, Zhao Q, Duan Y, Shen Y, Tian J, He K, Li D, Yu M, Lu Y, Tang Y, Feng C. Transcriptome Analysis Reveals the Differentially Expressed Genes Associated with Growth in Guangxi Partridge Chickens. Genes (Basel) 2022; 13:genes13050798. [PMID: 35627183 PMCID: PMC9140345 DOI: 10.3390/genes13050798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 04/27/2022] [Accepted: 04/27/2022] [Indexed: 02/04/2023] Open
Abstract
The Guangxi Partridge chicken is a well-known chicken breed in southern China with good meat quality, which has been bred as a meat breed to satisfy the increased demand of consumers. Compared with line D whose body weight is maintained at the average of the unselected group, the growth rate and weight of the selected chicken group (line S) increased significantly after breeding for four generations. Herein, transcriptome analysis was performed to identify pivotal genes and signal pathways of selective breeding that contributed to potential mechanisms of growth and development under artificial selection pressure. The average body weight of line S chickens was 1.724 kg at 90 d of age, which showed a significant increase at 90 d of age than line D chickens (1.509 kg), although only the internal organ ratios of lung and kidney changed after standardizing by body weight. The myofiber area and myofiber density of thigh muscles were affected by selection to a greater extent than that of breast muscle. We identified 51, 210, 31, 388, and 100 differentially expressed genes (DEGs) in the hypothalamus, pituitary, breast muscle, thigh muscle, and liver between the two lines, respectively. Several key genes were identified in the hypothalamus-pituitary-muscle axis, such as FST, THSB, PTPRJ, CD36, PITX1, PITX2, AMPD1, PRKAB1, PRKAB2, and related genes for muscle development, which were attached to the cytokine–cytokine receptor interaction signaling pathway, the PPAR signaling pathway, and lipid metabolism. However, signaling molecular pathways and the cell community showed that elevated activity in the liver of line S fowl was mainly involved in focal adhesion, ECM-receptor interaction, cell adhesion molecules, and signal transduction. Collectively, muscle development, lipid metabolism, and several signaling pathways played crucial roles in the improving growth performance of Guangxi Partridge chickens under artificial selection for growth rate. These results support further study of the adaptation of birds under selective pressure.
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Affiliation(s)
- Minghui Shao
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; (M.S.); (K.S.); (Q.Z.); (Y.D.); (Y.S.); (J.T.); (K.H.); (D.L.); (M.Y.)
| | - Kai Shi
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; (M.S.); (K.S.); (Q.Z.); (Y.D.); (Y.S.); (J.T.); (K.H.); (D.L.); (M.Y.)
| | - Qian Zhao
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; (M.S.); (K.S.); (Q.Z.); (Y.D.); (Y.S.); (J.T.); (K.H.); (D.L.); (M.Y.)
| | - Ying Duan
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; (M.S.); (K.S.); (Q.Z.); (Y.D.); (Y.S.); (J.T.); (K.H.); (D.L.); (M.Y.)
| | - Yangyang Shen
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; (M.S.); (K.S.); (Q.Z.); (Y.D.); (Y.S.); (J.T.); (K.H.); (D.L.); (M.Y.)
| | - Jinjie Tian
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; (M.S.); (K.S.); (Q.Z.); (Y.D.); (Y.S.); (J.T.); (K.H.); (D.L.); (M.Y.)
| | - Kun He
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; (M.S.); (K.S.); (Q.Z.); (Y.D.); (Y.S.); (J.T.); (K.H.); (D.L.); (M.Y.)
| | - Dongfeng Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; (M.S.); (K.S.); (Q.Z.); (Y.D.); (Y.S.); (J.T.); (K.H.); (D.L.); (M.Y.)
| | - Minli Yu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; (M.S.); (K.S.); (Q.Z.); (Y.D.); (Y.S.); (J.T.); (K.H.); (D.L.); (M.Y.)
| | - Yangqing Lu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Animal Science and Technology, Guangxi University, Nanning 530004, China;
| | - Yanfei Tang
- Guangxi Fufeng Agricultural and Animal Husbandry Group Co., Ltd., Nanning 530024, China;
| | - Chungang Feng
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; (M.S.); (K.S.); (Q.Z.); (Y.D.); (Y.S.); (J.T.); (K.H.); (D.L.); (M.Y.)
- Correspondence:
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