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Botelho-Fontela S, Ferreira S, Paixão G, Pereira-Pinto R, Vaz-Velho M, Pires MDA, Payan-Carreira R, Patarata L, Lorenzo JM, Silva JA, Esteves A. Seasonal Variations on Testicular Morphology, Boar Taint, and Meat Quality Traits in Traditional Outdoor Pig Farming. Animals (Basel) 2023; 14:102. [PMID: 38200834 PMCID: PMC10778027 DOI: 10.3390/ani14010102] [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: 11/28/2023] [Revised: 12/16/2023] [Accepted: 12/26/2023] [Indexed: 01/12/2024] Open
Abstract
Traditional outdoor pig farming is renowned for its emphasis on animal welfare and the production of highly valued, quality meat. While seasonality is known to impact certain animals, particularly those raised outdoors, there is a lack of research on Bísaro boars, a native Portuguese breed. This research study was conducted on a total of 20 male entire Bísaro pigs, reared in outdoor pens from 4 to 13 months old, and subsequently slaughtered. The animals were divided into two groups: one slaughtered in winter (Wi, n = 9), and the other in summer (Su, n = 11). The objective was to evaluate testicular morphometry, boar taint compounds, and meat quality traits, including sensory analysis and fatty acid profile. Testicles from the Su group exhibited reduced volume, indicating diminished functionality during that season. While no significant differences were observed in the boar taint compound analysis, panelists could discern a more intense aroma and flavor of boar taint in the Su meat. Other meat quality traits showed no significant variations, but the fatty acid profile displayed higher values in the Wi group. This study reveals that Bísaro boars experience reproductive seasonality, leading to variations in boar taint compounds across the seasons. This information is crucial for farm planning.
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Affiliation(s)
- Sofia Botelho-Fontela
- Animal and Veterinary Research Centre (CECAV), AL4AnimalS, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal; (S.F.); (G.P.); (M.d.A.P.); (L.P.); (J.A.S.); (A.E.)
| | - Sílvia Ferreira
- Animal and Veterinary Research Centre (CECAV), AL4AnimalS, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal; (S.F.); (G.P.); (M.d.A.P.); (L.P.); (J.A.S.); (A.E.)
| | - Gustavo Paixão
- Animal and Veterinary Research Centre (CECAV), AL4AnimalS, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal; (S.F.); (G.P.); (M.d.A.P.); (L.P.); (J.A.S.); (A.E.)
- CISAS—Center for Research and Development in Agrifood Systems and Sustainability, Instituto Politécnico de Viana do Castelo, 4900-347 Viana do Castelo, Portugal; (R.P.-P.); (M.V.-V.)
| | - Ricardo Pereira-Pinto
- CISAS—Center for Research and Development in Agrifood Systems and Sustainability, Instituto Politécnico de Viana do Castelo, 4900-347 Viana do Castelo, Portugal; (R.P.-P.); (M.V.-V.)
| | - Manuela Vaz-Velho
- CISAS—Center for Research and Development in Agrifood Systems and Sustainability, Instituto Politécnico de Viana do Castelo, 4900-347 Viana do Castelo, Portugal; (R.P.-P.); (M.V.-V.)
| | - Maria dos Anjos Pires
- Animal and Veterinary Research Centre (CECAV), AL4AnimalS, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal; (S.F.); (G.P.); (M.d.A.P.); (L.P.); (J.A.S.); (A.E.)
| | - Rita Payan-Carreira
- CHRC—Comprehensive Health Research Centre, Department of Veterinary Medicine, University of Évora, Pole at Mitra, 7002-554 Évora, Portugal;
| | - Luís Patarata
- Animal and Veterinary Research Centre (CECAV), AL4AnimalS, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal; (S.F.); (G.P.); (M.d.A.P.); (L.P.); (J.A.S.); (A.E.)
| | - José M. Lorenzo
- Centro Tecnológico de la Carne de Galicia 4, 32900 San Cibrao das Viñas, Spain;
| | - José A. Silva
- Animal and Veterinary Research Centre (CECAV), AL4AnimalS, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal; (S.F.); (G.P.); (M.d.A.P.); (L.P.); (J.A.S.); (A.E.)
| | - Alexandra Esteves
- Animal and Veterinary Research Centre (CECAV), AL4AnimalS, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal; (S.F.); (G.P.); (M.d.A.P.); (L.P.); (J.A.S.); (A.E.)
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Fernández-Fígares I, Haro A, Lachica M, Lara L, Seiquer I, Nieto R. Metabolic Profile of Growing Immune- and Surgically Castrated Iberian Pigs Fed Diets of Different Amino Acid Concentration. Animals (Basel) 2023; 13:2650. [PMID: 37627441 PMCID: PMC10451894 DOI: 10.3390/ani13162650] [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: 06/23/2023] [Revised: 08/11/2023] [Accepted: 08/13/2023] [Indexed: 08/27/2023] Open
Abstract
The purpose of the current study was to further characterize the performance and nitrogen retention differences previously observed between immunocastrated (IC) and surgically castrated (SC) pure Iberian pigs. Fifty-four pigs were used (three sexes: IC males, IC females and SC males), fed three isoenergetic diets (160, 140 and 120 g CP/kg DM; six pigs/treatment combination) from 40 kg BW until slaughter (105 kg BW). Plasmatic post-absorptive metabolites and hormones, and backfat tissue composition were determined. The IC males showed a trend towards higher plasmatic creatinine (p = 0.06) and IGF-1 concentrations than SC males and IC females (p < 0.001). SC males showed a higher predisposition to carcass fatness and insulin resistance compared to IC males. Plasmatic isoleucine concentration was higher in IC and SC males compared to IC females (p < 0.01), and valine was greater in IC males compared to the rest of the pigs (p < 0.001). Total branched-chain amino acids (AA) were greater in IC males than in IC females (p < 0.01). Total plasmatic essential AA concentrations tended to be greater in IC males (p = 0.09). The present results support the increased performance and nitrogen retention capacity previously observed in IC male Iberian pigs compared to SC males and IC females, which can be attributed to increased anabolic capacity related with lean growth in Iberian IC males.
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Affiliation(s)
- Ignacio Fernández-Fígares
- Department of Nutrition and Sustainable Animal Production, Estación Experimental del Zaidín, Spanish National Research Council, CSIC, Profesor Albareda, s/n, 18008 Granada, Spain
| | - Ana Haro
- Department of Nutrition and Sustainable Animal Production, Estación Experimental del Zaidín, Spanish National Research Council, CSIC, Profesor Albareda, s/n, 18008 Granada, Spain
| | - Manuel Lachica
- Department of Nutrition and Sustainable Animal Production, Estación Experimental del Zaidín, Spanish National Research Council, CSIC, Profesor Albareda, s/n, 18008 Granada, Spain
| | - Luis Lara
- Department of Nutrition and Sustainable Animal Production, Estación Experimental del Zaidín, Spanish National Research Council, CSIC, Profesor Albareda, s/n, 18008 Granada, Spain
| | - Isabel Seiquer
- Department of Nutrition and Sustainable Animal Production, Estación Experimental del Zaidín, Spanish National Research Council, CSIC, Profesor Albareda, s/n, 18008 Granada, Spain
| | - Rosa Nieto
- Department of Nutrition and Sustainable Animal Production, Estación Experimental del Zaidín, Spanish National Research Council, CSIC, Profesor Albareda, s/n, 18008 Granada, Spain
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Sarmiento-García A, Vieira-Aller C. Improving Fatty Acid Profile in Native Breed Pigs Using Dietary Strategies: A Review. Animals (Basel) 2023; 13:ani13101696. [PMID: 37238126 DOI: 10.3390/ani13101696] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 05/13/2023] [Accepted: 05/17/2023] [Indexed: 05/28/2023] Open
Abstract
Meat from native-bred animals is growing in popularity worldwide due to consumers' perception of its higher quality than meat from industrial farms. The improvement in indigenous pork has been related to increased intramuscular and unsaturated fat and a reduced saturated fat content resulting in a healthy product with enhanced sensorial attributes. This manuscript aims to provide an overview offering useful information about the fat content and the fatty acid profile of different autochthonous pork. Fat content and fatty acid profile are greater in native than in industrial pig breeds, even though certain factors, such as genetics, nutrition, farming system, age, or slaughter weight, may influence these variations. Among that, studies on dietary strategies to improve these parameters have been evaluated. According to the results obtained, many natural ingredients could have a positive effect on the lipid profile when added to indigenous pigs' diets. This fact may promote autochthonous pork intake. Nevertheless, there is a wide range of potential natural ingredients to be added to the indigenous pig diet that needs to be evaluated.
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Affiliation(s)
- Ainhoa Sarmiento-García
- Área de Producción Animal, Departamento de Construcción y Agronomía, Facultad de Agricultura y Ciencias Ambientales, Universidad de Salamanca, Av. de Filiberto Villalobos 119, 37007 Salamanca, Spain
- Estación Tecnológica de la Carne, Instituto Tecnológico Agrario de Castilla y León (ITACyL), Calle Filiberto Villalobos 5, 37770 Guijuelo, Spain
| | - Ceferina Vieira-Aller
- Estación Tecnológica de la Carne, Instituto Tecnológico Agrario de Castilla y León (ITACyL), Calle Filiberto Villalobos 5, 37770 Guijuelo, Spain
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Almeida J, Bressan M, Amaral A, Bettencourt C, Santos-Silva J, Moreira O, Gama L. Body weight and ultrasound measurements over the finishing period in Iberian and F1 Large White × Landrace pigs raised intensively or in free-range conditions. Livest Sci 2019. [DOI: 10.1016/j.livsci.2019.09.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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González-Prendes R, Quintanilla R, Mármol-Sánchez E, Pena RN, Ballester M, Cardoso TF, Manunza A, Casellas J, Cánovas Á, Díaz I, Noguera JL, Castelló A, Mercadé A, Amills M. Comparing the mRNA expression profile and the genetic determinism of intramuscular fat traits in the porcine gluteus medius and longissimus dorsi muscles. BMC Genomics 2019; 20:170. [PMID: 30832586 PMCID: PMC6399881 DOI: 10.1186/s12864-019-5557-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 02/22/2019] [Indexed: 12/23/2022] Open
Abstract
Background Intramuscular fat (IMF) content and composition have a strong impact on the nutritional and organoleptic properties of porcine meat. The goal of the current work was to compare the patterns of gene expression and the genetic determinism of IMF traits in the porcine gluteus medius (GM) and longissimus dorsi (LD) muscles. Results A comparative analysis of the mRNA expression profiles of the pig GM and LD muscles in 16 Duroc pigs with available microarray mRNA expression measurements revealed the existence of 106 differentially expressed probes (fold-change > 1.5 and q-value < 0.05). Amongst the genes displaying the most significant differential expression, several loci belonging to the Hox transcription factor family were either upregulated (HOXA9, HOXA10, HOXB6, HOXB7 and TBX1) or downregulated (ARX) in the GM muscle. Differences in the expression of genes with key roles in carbohydrate and lipid metabolism (e.g. FABP3, ORMDL1 and SLC37A1) were also detected. By performing a GWAS for IMF content and composition traits recorded in the LD and GM muscles of 350 Duroc pigs, we identified the existence of one region on SSC14 (110–114 Mb) displaying significant associations with C18:0, C18:1(n-7), saturated and unsaturated fatty acid contents in both GM and LD muscles. Moreover, we detected several genome-wide significant associations that were not consistently found in both muscles. Further studies should be performed to confirm whether these associations are muscle-specific. Finally, the performance of an eQTL scan for 74 genes, located within GM QTL regions and with available microarray measurements of gene expression, made possible to identify 14 cis-eQTL regulating the expression of 14 loci, and six of them were confirmed by RNA-Seq. Conclusions We have detected significant differences in the mRNA expression patterns of the porcine LD and GM muscles, evidencing that the transcriptomic profile of the skeletal muscle tissue is affected by anatomical, metabolic and functional factors. A highly significant association with IMF composition on SSC14 was replicated in both muscles, highlighting the existence of a common genetic determinism, but we also observed the existence of a few associations whose magnitude and significance varied between LD and GM muscles. Electronic supplementary material The online version of this article (10.1186/s12864-019-5557-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Rayner González-Prendes
- Department of Animal Genetics, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - Raquel Quintanilla
- Animal Breeding and Genetics Program, Institute for Research and Technology in Food and Agriculture (IRTA), Rovira Roure 191, 25198, Lleida, Spain
| | - Emilio Mármol-Sánchez
- Department of Animal Genetics, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - Ramona N Pena
- Departament de Ciència Animal, Universitat de Lleida-Agrotecnio Centre, 25198, Lleida, Spain
| | - Maria Ballester
- Animal Breeding and Genetics Program, Institute for Research and Technology in Food and Agriculture (IRTA), Rovira Roure 191, 25198, Lleida, Spain
| | - Tainã Figueiredo Cardoso
- Department of Animal Genetics, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain.,CAPES Foundation, Ministry of Education of Brazil, Brasilia, DF, 70.040-020, Brazil
| | - Arianna Manunza
- Department of Animal Genetics, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - Joaquim Casellas
- Departament de Ciència Animal i dels Aliments, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - Ángela Cánovas
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, 50 Stone Road East, Guelph, Ontario, N1G 2W1, Canada
| | - Isabel Díaz
- Institute for Research and Technology in Food and Agriculture (IRTA), Tecnologia dels Aliments, 17121, Monells, Spain
| | - José Luis Noguera
- Animal Breeding and Genetics Program, Institute for Research and Technology in Food and Agriculture (IRTA), Rovira Roure 191, 25198, Lleida, Spain
| | - Anna Castelló
- Department of Animal Genetics, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain.,Departament de Ciència Animal i dels Aliments, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - Anna Mercadé
- Departament de Ciència Animal i dels Aliments, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - Marcel Amills
- Department of Animal Genetics, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain. .,Departament de Ciència Animal i dels Aliments, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain.
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Almeida J, Bressan MC, Santos-Silva J, Moreira O, Bettencourt C, Gama LT. Physicochemical characteristics and sensory attributes of meat from heavy-weight Iberian and F1 Large White × Landrace pigs finished intensively or in free-range conditions. J Anim Sci 2018; 96:2734-2746. [PMID: 29767730 DOI: 10.1093/jas/sky181] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 05/13/2018] [Indexed: 11/14/2022] Open
Abstract
Iberian (IB, n = 60) and crossbred Large White × Landrace (F1, n = 58) pigs were slaughtered at 160 kg, after finishing under intensive conditions or on pasture and acorns. The study was carried out as a factorial arrangement of treatments, and physicochemical properties and sensory attributes of meat were assessed in Longissimus thoracis samples. Physical characteristics included the assessment of drip loss, cooking loss, shear force, and color coordinates in meat samples processed at 2 and 9 d postmortem. The interactions of genetic group and finishing system were significant (P < 0.05) for cooking loss in meat aged for 9 d and for sensorial tenderness and global acceptability of meat, but none of the other physicochemical, color coordinates, and sensory variables analyzed showed a significant interaction. Genetic group was the main factor influencing the variables analyzed, with a major (P < 0.01) influence on all meat physicochemical characteristics and sensory attributes. Relative to F1 pigs, the IB produced meat with higher intramuscular fat content and marbling score, more appealing color coordinates, lower shear force, and higher sensorial tenderness. The finishing systems affected (P < 0.05) most physical characteristics, but not chemical composition of meat and their impact on sensory properties was small. The tenderness, juiciness, and global acceptability of meat were much higher in IB pigs, and flavor was also more desirable, but the difference was smaller. The differences in sensory properties between meats originating from the two genetic groups were largely explained by the higher fat deposition in IB pigs, such that a higher level of marbling was positively associated with all the sensory attributes evaluated. Ageing meat for up to 9 d postmortem benefited pork quality, improving meat tenderness, and color, particularly in crossbred pigs and those finished intensively.
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Affiliation(s)
- J Almeida
- Instituto Nacional de Investigação Agrária e Veterinária (INIAV), I.P., Polo de Santarem, Vale de Santarém, Portugal
| | - M C Bressan
- Faculty of Veterinary Medicine, Universidade Lusófona de Humanidades e Tecnologias, Lisbon, Portugal.,CIISA, Center for Interdisciplinary Research in Animal Health, Faculdade de Medicina Veterinária, Universidade de Lisboa, Lisboa, Portugal
| | - J Santos-Silva
- Instituto Nacional de Investigação Agrária e Veterinária (INIAV), I.P., Polo de Santarem, Vale de Santarém, Portugal
| | - O Moreira
- Instituto Nacional de Investigação Agrária e Veterinária (INIAV), I.P., Polo de Santarem, Vale de Santarém, Portugal
| | - C Bettencourt
- Direcção Regional de Agricultura e Pescas do Alentejo, Herdade da Abóbada, Serpa, Portugal
| | - L T Gama
- CIISA, Center for Interdisciplinary Research in Animal Health, Faculdade de Medicina Veterinária, Universidade de Lisboa, Lisboa, Portugal
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Breed Characteristics of Indigenous Pigs in Okinawa :Growth Performance, Carcass Traits and Meat Quality. ACTA ACUST UNITED AC 2017. [DOI: 10.5938/youton.54.3_121] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Moreira FRDCE, Costa AN, Martins TDD, Silva JHVD, Medeiros HRD, Cruz GRBD. Substituição parcial do milho por sorgo granífero na alimentação de suínos nas fases de creche, crescimento e terminação. REVISTA BRASILEIRA DE SAÚDE E PRODUÇÃO ANIMAL 2014. [DOI: 10.1590/s1519-99402014000100013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Avaliou-se o efeito da substituição parcial do milho por sorgo granífero na dieta de suínos castrados sobre as características de desempenho, carcaça e avaliação econômica. Foram utilizados 27 machos híbridos, oriundos de linhagem comercial, com 19,66 ± 2,92kg de peso inicial, distribuídos em três tratamentos com porcentagens crescentes de sorgo granífero - 0%, 25% e 50% - em substituição ao milho, em um delineamento inteiramente casualizado. Foram avaliados: ganho diário de peso, consumo diário de ração, conversão alimentar, espessura de toucinho e parâmetros bioquímicos sanguíneos - ureia, proteínas totais, creatinina, glicose, triglicerídeos e colesterol. Para as características de carcaça foram avaliados: peso nas carcaças quente e fria, rendimento nas carcaças quente e fria, pH e temperatura nas carcaças quente e fria e peso de cortes industriais. Para o desempenho econômico foi calculado o custo da ração, custo do kg suíno e índices de custo médio e de eficiência econômica. Foi utilizada análise de regressão para as variáveis produtivas. Não foram encontrados efeitos para o desempenho e características de carcaça. Nas variáveis bioquímicas, foram encontrados efeitos lineares para a ureia e proteínas totais, com os animais com 0% de sorgo apresentando os maiores valores. Quanto ao desempenho econômico, o grupo com 50% de sorgo apresentou o menor índice de custo e o maior de eficiência econômica. Dessa forma, conclui-se que a substituição do milho pelo sorgo granífero em níveis de até 50% da dieta representa uma alternativa sustentável na suinocultura regional.
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Bessa RJB, Hughes RA, Jeronimo E, Moreira OC, Prates JAM, Doran O. Effect of pig breed and dietary protein level on selected fatty acids and stearoyl-coenzyme A desaturase protein expression in longissimus muscle and subcutaneous fat. J Anim Sci 2013; 91:4540-6. [PMID: 23881676 DOI: 10.2527/jas.2012-5963] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The aims of the study were 1) to investigate effects of a low protein diet on fatty acids content and composition of the LM and subcutaneous adipose tissue in 3 genetically diverse breeds, Large White × Landrace, Alentejano, and Bizaro, and 2) to determine whether the effect of the low protein diet of fatty acid composition is associated with dietary modulation of stearoyl-CoA desaturase (SCD) protein expression. The experiments were conducted on 12 Large White × Landrace, 12 Alentejano, and 10 Bízaro female and male pigs. The average animal BW at the beginning of experiments was 40.8, 40.7, and 38.3 kg for Large White × Landrace, Alentejano, and Bízaro, respectively, and the BW of animals at slaughter was 90 kg. The diets contained 202 or 169 g/kg DM of CP (high and low protein diets, respectively) and were balanced in essential AA. The diets were fed until the animals reached 90 kg BW (approximately 73 d). It was established that Large White × Landrace pigs had a less (P = 0.001) total fatty acid content in subcutaneous adipose tissue when compared with Alentejano and Bízaro and less (P < 0.001) intramuscular fat (IMF) content when compared with Alentejano. There was a positive relationship between SCD protein expression in the LM and MUFA content (r = 0.627, P = 0.029) and SCD protein expression and total muscle fatty acids content (r = 0.725, P = 0.008) in Large White × Landrace but not in Alentejano and Bizaro breeds. It has been suggested that SCD protein expression is associated with regulation of fat deposition only in breeds with genetic predisposition to a low IMF content.
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Affiliation(s)
- R J B Bessa
- Unidade de Investigação em Produção e Saúde Animal, L-INIA, Instituto Nacional de Investigação Agrária e Veterinária, Polo de Investigação da Quinta da Fonte Boa, 2005-048 Vale de Santarém, Portugal
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Evolution of the fatty acid profile of subcutaneous back-fat adipose tissue in growing Iberian and Landrace × Large White pigs. Animal 2012; 7:688-98. [PMID: 23031353 DOI: 10.1017/s175173111200184x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The lipid content and fatty acid (FA) profile in pig tissues are strongly influenced by genotype and nutrient supply, with implications in meat quality. The de novo lipid synthesis and pattern of FA unsaturation could be an important cause of variation in the overall efficiency of energy utilization among breeds. To test the effects of pig genotype and CP supply on the evolution of back-fat tissue FA profile throughout the growing and finishing stages, 32 Iberian (IB) and Landrace × Large White (LR × LW) barrows were offered one of two diets differing in CP content (13% or 17% as fed). A pair-fed procedure (0.8 × ad libitum intake of IB pigs) was used. Subcutaneous fat samples were taken at the dorso-lumbar region at ∼38, 50, 65, 90 and 115 kg BW. Higher proportions of total monounsaturated FA (MUFA; P < 0.01) and lower proportions of total saturated FA (SFA; P < 0.01 to 0.05) were found in the outer back-fat layer of pigs both at 50 and 115 kg BW. Pig genotype affected the FA composition of both subcutaneous back-fat layers. The proportions of C18:0 and SFA in fat tissue were higher in IB than in LR × LW pigs from 38 to 65 kg BW, especially in the outer layer. In addition, MUFA contents were higher in IB pigs at 115 kg BW in both layers (+5% on average; P < 0.01). Increased proportions of C18:2 n-6 and polyunsaturated FA (PUFA) were found in LR × LW pigs, irrespective of the stage of growth and back-fat layer (P⩽0.02). At 50 kg BW, pigs receiving the high-protein diet presented the highest C18:2 n-6, C18:3 n-3, C20:5 n-3 and PUFA contents. A significant genotype × CP content interaction was observed for C18:3 n-3 because of the increased concentration of this FA in LR × LW pigs when offered the 17% CP diet (P < 0.05). Higher C16:0 and SFA contents (+5%; P = 0.03) were found in pigs offered the 13% CP diet and slaughtered at 115 kg BW. There was a genotype × CP interaction for MUFA concentration because of the higher MUFA content observed in IB pigs offered the highest protein content diet (P = 0.03). Our results suggest that genetic variation in de novo lipid synthesis and pattern of FA unsaturation might contribute to explain differences in back-fat FA profile of IB and LR × LW pigs under identical nutritional management. They could be also relevant to explain the low efficiency of nutrient and energy utilization in the IB pig.
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Jiang YZ, Zhu L, Li FQ, Li XW. Carcass composition and meat quality of indigenous Yanan pigs of China. GENETICS AND MOLECULAR RESEARCH 2012; 11:166-73. [DOI: 10.4238/2012.january.27.3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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12
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Evaluation of the Chinese indigenous pig breed Dahe and crossbred Dawu for growth and carcass characteristics, organ weight, meat quality and intramuscular fatty acid and amino acid composition. Animal 2011; 5:1485-92. [DOI: 10.1017/s1751731111000425] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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13
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Developmental changes of carcass composition, meat quality and organs in the Jinhua pig and Landrace. Animal 2009; 3:468-73. [DOI: 10.1017/s1751731108003613] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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14
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Renaudeau D, Mourot J. A comparison of carcass and meat quality characteristics of Creole and Large White pigs slaughtered at 90kg BW. Meat Sci 2007; 76:165-71. [DOI: 10.1016/j.meatsci.2006.10.024] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2006] [Revised: 08/17/2006] [Accepted: 10/25/2006] [Indexed: 10/23/2022]
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