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Suliga P, Schneider S, Gonzalez J, Egelandsdal B, Alvseike O, Abie SM, Münch D. A new histopathology scoring protocol reveals myopathy features in PSE-like pork. Meat Sci 2024; 216:109558. [PMID: 38850887 DOI: 10.1016/j.meatsci.2024.109558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 05/04/2024] [Accepted: 06/03/2024] [Indexed: 06/10/2024]
Abstract
Pale, Soft, and Exudative (PSE)-like pork defects are associated with fiber destruction and pale discoloration and have become a severe economic burden for the European meat sector. However, robust detection of PSE-like pork and its diverse features is challenging and makes studies into defect causation difficult. Implementation of histological examination may improve our knowledge about less-known features linked to PSE-like defects. Here we evaluate if a new histological protocol can reveal how myopathy in ham may be associated with visual and traditional physicochemical anomalies of PSE-like pork. We first created a list of pathological features, quantified them, and integrated them into a myodegeneration scoring scheme (MYO) for semimembranosus muscle sections. We then explored potential associations between overall MYO scoring and individual histology features with visual PSE-like defect scoring (DES) and with individual meat quality variables [pHu, color: L*, a*, b* (CIELAB), bioimpedance, and near-infrared spectroscopy (NIR)]. As the primary finding of this study, we show a significant association between overall myopathy (MYO) scoring and PSE-like defect (DES) scores. We also found associations of specific myopathy features with DES scores, and of overall MYO scoring with specific quality variables. In all, our data suggest links between signs of acute myodegeneration and PSE-like defects. Our data, hence, supports the implementation of semi-quantitative histopathological approaches for diagnosing PSE-like pork features and may help identify the underlying mechanisms behind these defects.
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Affiliation(s)
- P Suliga
- Department of Ecology and Natural Resource Management, The Norwegian University of Life Sciences, P.O. Box 5003, NO-1432 Ås, Norway.
| | - S Schneider
- Department of Pathology, University of Georgia, 501 D. W. Brooks Drive, Athens, GA 30602, United States
| | - J Gonzalez
- Department of Animal and Dairy Science, University of Georgia, 425 River Road, Athens, GA 30602, United States
| | - B Egelandsdal
- KBM Faculty, The Norwegian University of Life Sciences, P.O. Box 5003, NO-1433 Ås, Norway
| | - O Alvseike
- Animalia, Norwegian Meat and Poultry Research Centre, Lørenveien 38, NO-0580 Oslo, Norway
| | - S M Abie
- Department of Ecology and Natural Resource Management, The Norwegian University of Life Sciences, P.O. Box 5003, NO-1432 Ås, Norway
| | - D Münch
- Department of Ecology and Natural Resource Management, The Norwegian University of Life Sciences, P.O. Box 5003, NO-1432 Ås, Norway; Animalia, Norwegian Meat and Poultry Research Centre, Lørenveien 38, NO-0580 Oslo, Norway
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Yin L, Liu L, Tang Y, Chen Q, Zhang D, Lin Z, Wang Y, Liu Y. The Implications in Meat Quality and Nutrition by Comparing the Metabolites of Pectoral Muscle between Adult Indigenous Chickens and Commercial Laying Hens. Metabolites 2023; 13:840. [PMID: 37512547 PMCID: PMC10384229 DOI: 10.3390/metabo13070840] [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: 06/15/2023] [Revised: 06/30/2023] [Accepted: 07/07/2023] [Indexed: 07/30/2023] Open
Abstract
Aged chickens are often a secondary dietary choice, owing to the poor organoleptic qualities of their meat. With regard to the meat quality of chickens, the metabolic profiles of pectoral muscle in Guangyuan grey chickens (group G) and Hy-Line grey hens (group H) aged 55 weeks were compared via ultra-high-performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS). A total of 74 metabolites were identified with differential changes in the ion model. Lipids and lipid-like molecules comprised the largest proportion among the different metabolites. The content of myristic acid and palmitic acid were found to be higher in the pectoral muscle of group G, while group H showed significantly higher levels of glycerophospholipid molecules, such as LPC(18:2/0:0), Pi(38:5), Pc(16:0/16:0), and Pe(16:1e/14-hdohe). KEGG pathway analysis indicated that the abundant metabolites in group G were mainly involved in energy metabolism and fatty acid biosynthesis and metabolism, whereas those of group H were mainly attributed to the metabolism of unsaturated fatty acids and amino acids. Overall, the differences in lipid and amino acid metabolism in pectoral muscle appear to be responsible for the difference in meat quality between indigenous chickens and commercial laying hens.
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Affiliation(s)
- Lingqian Yin
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Li Liu
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Yuan Tang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Qian Chen
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Donghao Zhang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Zhongzhen Lin
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Yan Wang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Yiping Liu
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
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Xie X, Huang C, Huang Y, Zou X, Zhou R, Ai H, Huang L, Ma J. Genetic architecture for skeletal muscle glycolytic potential in Chinese Erhualian pigs revealed by a genome-wide association study using 1.4M SNP array. Front Genet 2023; 14:1141411. [PMID: 37007966 PMCID: PMC10064215 DOI: 10.3389/fgene.2023.1141411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 02/16/2023] [Indexed: 03/19/2023] Open
Abstract
Introduction: Muscle glycolytic potential (GP) is a key factor affecting multiple meat quality traits. It is calculated based on the contents of residual glycogen and glucose (RG), glucose-6-phosphate (G6P), and lactate (LAT) contents in muscle. However, the genetic mechanism of glycolytic metabolism in skeletal muscle of pigs remains poorly understood. With a history of more than 400 years and some unique characteristics, the Erhualian pig is called the “giant panda” (very precious) in the world’s pig species by Chinese animal husbandry.Methods: Here, we performed a genome-wide association study (GWAS) using 1.4M single nucleotide polymorphisms (SNPs) chips for longissimus RG, G6P, LAT, and GP levels in 301 purebred Erhualian pigs.Results: We found that the average GP value of Erhualian was unusually low (68.09 μmol/g), but the variation was large (10.4–112.7 μmol/g). The SNP-based heritability estimates for the four traits ranged from 0.16–0.32. In total, our GWAS revealed 31 quantitative trait loci (QTLs), including eight for RG, nine for G6P, nine for LAT, five for GP. Of these loci, eight were genome-wide significant (p < 3.8 × 10−7), and six loci were common to two or three traits. Multiple promising candidate genes such as FTO, MINPP1, RIPOR2, SCL8A3, LIFR and SRGAP1 were identified. The genotype combinations of the five GP-associated SNPs also showed significant effect on other meat quality traits.Discussion: These results not only provide insights into the genetic architecture of GP related traits in Erhualian, but also are useful for pig breeding programs involving this breed.
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Affiliation(s)
- Xinke Xie
- National Key Laboratory for Swine Genetic Improvement and Production Technology, Ministry of Science and Technology of China, Jiangxi Agricultural University, Nanchang, China
| | - Cong Huang
- National Key Laboratory for Swine Genetic Improvement and Production Technology, Ministry of Science and Technology of China, Jiangxi Agricultural University, Nanchang, China
| | - Yizhong Huang
- National Key Laboratory for Swine Genetic Improvement and Production Technology, Ministry of Science and Technology of China, Jiangxi Agricultural University, Nanchang, China
| | - Xiaoxiao Zou
- National Key Laboratory for Swine Genetic Improvement and Production Technology, Ministry of Science and Technology of China, Jiangxi Agricultural University, Nanchang, China
| | - Runxin Zhou
- National Key Laboratory for Swine Genetic Improvement and Production Technology, Ministry of Science and Technology of China, Jiangxi Agricultural University, Nanchang, China
| | - Huashui Ai
- National Key Laboratory for Swine Genetic Improvement and Production Technology, Ministry of Science and Technology of China, Jiangxi Agricultural University, Nanchang, China
| | - Lusheng Huang
- National Key Laboratory for Swine Genetic Improvement and Production Technology, Ministry of Science and Technology of China, Jiangxi Agricultural University, Nanchang, China
- Correspondence: Lusheng Huang, ; Junwu Ma,
| | - Junwu Ma
- National Key Laboratory for Swine Genetic Improvement and Production Technology, Ministry of Science and Technology of China, Jiangxi Agricultural University, Nanchang, China
- Correspondence: Lusheng Huang, ; Junwu Ma,
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Li Y, He Y, Ran J, Huang Y, Li X, Jiang H, Li X, Pan Y, Zhao S, Song C, Pan H, Hu H. Comparison of meat quality and glycolysis potential of two hybrid pigs in three-way hybrid model. Front Vet Sci 2023; 10:1136485. [PMID: 36875993 PMCID: PMC9981941 DOI: 10.3389/fvets.2023.1136485] [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: 01/03/2023] [Accepted: 02/01/2023] [Indexed: 02/19/2023] Open
Abstract
With the improvement of consumers' requirements for pork quality, the method of crossbreeding with excellent local pig breeds to improve meat quality is popular. Saba pig has high reproduction rate, good meat quality and high utilization rate of roughage, but its excellent characteristics have not been fully developed and utilized. To promote the development and utilization of Saba pigs and production of high-quality pork, the meat quality traits and glycolysis potential of Duroc × (Landrace × Yorkshire) (DLY), Berkshire × (Duroc × Saba) (BDS), and Duroc × (Berkshire × Saba) (DBS) three-way crossbred pigs were compared. The results showed that DLY had the highest live weight, carcass weight, lean meat percentage, drip loss, glycolysis potential, muscle diameter, and relative mRNA expression levels of type IIb muscle fibers as well as the lowest ultimate pH (p < 0.05). The lightness value of DBS was the highest (p < 0.05). Among the three crossbred pigs, myristic, arachidic, palmitoleic, and eicosenoic acids were the highest in BDS. These results indicated that the carcass traits of local crossbred pigs were worse than those of DLY pigs, but meat quality was markedly higher, with BDS showing the best meat quality.
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Affiliation(s)
- Yongxiang Li
- Yunnan Provincial Key Laboratory of Animal Nutrition and Feed Science, Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, China
| | - Yang He
- Yunnan Provincial Key Laboratory of Animal Nutrition and Feed Science, Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, China
| | - Jinming Ran
- College of Modern Agriculture, Dazhou Vocational and Technical College, Dazhou, China
| | - Ying Huang
- Yunnan Provincial Key Laboratory of Animal Nutrition and Feed Science, Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, China
| | - Xian Li
- Yunnan Provincial Key Laboratory of Animal Nutrition and Feed Science, Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, China
| | - Hengxin Jiang
- Yunnan Provincial Key Laboratory of Animal Nutrition and Feed Science, Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, China
| | - Xueyan Li
- Yunnan Provincial Key Laboratory of Animal Nutrition and Feed Science, Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, China
| | - Yangsu Pan
- Yunnan Provincial Key Laboratory of Animal Nutrition and Feed Science, Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, China
| | - Sumei Zhao
- Yunnan Provincial Key Laboratory of Animal Nutrition and Feed Science, Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, China
| | - Chunlian Song
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming, China
| | - Hongbin Pan
- Yunnan Provincial Key Laboratory of Animal Nutrition and Feed Science, Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, China
| | - Hong Hu
- Yunnan Provincial Key Laboratory of Animal Nutrition and Feed Science, Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, China
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Li W, Yan C, Descovich K, Phillips CJC, Chen Y, Huang H, Wu X, Liu J, Chen S, Zhao X. The Effects of Preslaughter Electrical Stunning on Serum Cortisol and Meat Quality Parameters of a Slow-Growing Chinese Chicken Breed. Animals (Basel) 2022; 12:ani12202866. [PMID: 36290252 PMCID: PMC9598214 DOI: 10.3390/ani12202866] [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: 08/24/2022] [Revised: 09/09/2022] [Accepted: 09/19/2022] [Indexed: 11/16/2022] Open
Abstract
Electrical stunning is widely utilized prior to a neck cut to induce unconsciousness in order to improve animal welfare and slaughter efficiency in the broiler production industry. However, slaughter without stunning is still very commonly used in China, in part because there is a belief that stunning reduces meat quality. The purpose of this study was to determine whether the physical (hemorrhages, pH, drip loss, and shear force) and chemical (inosinic monophosphate concentration and reducing sugar content) properties of broiler meat differed between chickens in preslaughter stunning and nonstunned slaughter groups, and whether the groups differed in their levels of cortisol as an indicator of stress. Serum cortisol levels of the nonstunned group were nearly twice as high as those in the stunned group (p < 0.05). Several meat quality indicators were better in the stunned group than in the nonstunned group. We concluded that electrical stunning prior to slaughter significantly decreases the stress caused by slaughter, resulting in both improved animal welfare and meat quality traits.
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Affiliation(s)
- Wenpeng Li
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Chao Yan
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
- Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518124, China
| | - Kris Descovich
- School of Veterinary Science, University of Queensland, Gatton, QLD 4343, Australia
| | - Clive J. C. Phillips
- Institute of Veterinary Medicine and Animal Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, 51014 Tartu, Estonia
- Curtin University Sustainability Policy (CUSP) Institute, Curtin University, Perth, WA 6845, Australia
| | - Yongyou Chen
- Nayong County Agriculture and Rural Bureau, Bijie 553300, China
| | - Huijing Huang
- Nayong County Agriculture and Rural Bureau, Bijie 553300, China
| | - Xuan Wu
- Nayong County Agriculture and Rural Bureau, Bijie 553300, China
| | - Jian Liu
- Nayong County Agriculture and Rural Bureau, Bijie 553300, China
| | - Siyu Chen
- 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.)
| | - Xingbo Zhao
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
- Correspondence: (S.C.); (X.Z.)
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6
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Guarnido-López P, Resconi VC, Campo MDM, Guerrero A, María GA, Olleta JL. Slaughtering of heifers in a local or an industrial abattoir: animal welfare and meat quality consequences. Livest Sci 2022. [DOI: 10.1016/j.livsci.2022.104904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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7
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Xu Y, Chen H, Wan K, Zhou K, Wang Y, Li J, Tang Z, Sun W, Wu L, An R, Ren Z, Ding Q, Liang K, Sun Z. Effects of supplementing low-protein diets with sodium dichloroacetate and glucose on growth performance, carcass traits, and meat quality of growing-finishing pigs. J Anim Sci 2022; 100:6449488. [PMID: 34865045 DOI: 10.1093/jas/skab359] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Accepted: 12/03/2021] [Indexed: 01/01/2023] Open
Abstract
The objective of this study was to evaluate the effects of supplementing low-protein diets with sodium dichloroacetate (DCA) and glucose on growth performance, carcass traits, and meat quality of growing-finishing pigs. A total of 80 crossbred (Duroc × Landrace × Large White) growing barrows (27 ± 0.4 kg body weight) were allocated randomly to one of the five treatments during three successive 4-wk periods. There were five diets in each phase. Diet 1 was the control diet with normal protein levels (CON) where protein levels in the three phases were 18%, 16.5%, and 15.5%, respectively. The dietary protein levels of Diets 2, 3, 4, and 5 (the low-protein diets, LP) were decreased by 4.5% compared to Diet 1. Additionally, Diets 3 and 4 were supplemented with an extra 120 mg/kg DCA (LP + DCA) or 1.8% glucose (LP + GLUC), respectively. Diet 5 was further supplemented with an extra 120 mg/kg DCA and 1.8% glucose (LP + DCA + GLUC). The LP + DCA diet increased the average daily weight gain of pigs compared to the CON and LP diet in phase 3 and the overall experimental period (P < 0.001). The LP diet reduced the gain:feed ratios of the pigs compared to the CON, LP + DCA, and LP + DCA + GLUC diets in phase 1 and the overall experimental period (P < 0.001). Furthermore, gain:feed ratios in LP + DCA and LP + DCA + GLUC groups did not differ from that of the CON group (P > 0.10). Pigs fed the LP + DCA diet had higher pH values of meat at 24 h post-mortem than the CON group (P < 0.05). The LP + DCA + GLUC diet increased the total protein content in the longissimus dorsi (LD) muscle of pigs, compared to the other dietary treatments (P < 0.05), and increased the Arg and Leu contents in the LD muscle compared to the LP + DCA diet (P < 0.05). Moreover, the LP + DCA diet induced a higher C18:1n9t percentage in the LD muscle of pigs compared to other groups (P < 0.05). In conclusion, an LP diet reduced the feed efficiency in pigs and barely affected meat quality, whereas 120 mg/kg DCA supplementation in an LP diet improved the growth performance of growing-finishing pigs, showed modest effects on carcass traits, and improved the muscle protein content with the addition of glucose.
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Affiliation(s)
- Yetong Xu
- Department of Animal Science and Technology, Laboratory for Bio-feed and Molecular Nutrition, Southwest University, Chongqing 400715, P. R. China
| | - Huiyuan Chen
- Department of Animal Science and Technology, Laboratory for Bio-feed and Molecular Nutrition, Southwest University, Chongqing 400715, P. R. China
| | - Ke Wan
- Department of Animal Science and Technology, Laboratory for Bio-feed and Molecular Nutrition, Southwest University, Chongqing 400715, P. R. China
| | - Kaifeng Zhou
- Shandong Provincial Animal Husbandry General Station, Jinan 250002, P. R. China
| | - Yongsheng Wang
- Nutrition and Health Research Institute, COFCO, Beijing 102209, P. R. China
| | - Jigang Li
- Chongqing Academy of Animal Sciences, Chongqing 500153, P. R. China
| | - Zhiru Tang
- Department of Animal Science and Technology, Laboratory for Bio-feed and Molecular Nutrition, Southwest University, Chongqing 400715, P. R. China
| | - Weizhong Sun
- Department of Animal Science and Technology, Laboratory for Bio-feed and Molecular Nutrition, Southwest University, Chongqing 400715, P. R. China
| | - Liuting Wu
- Department of Animal Science and Technology, Laboratory for Bio-feed and Molecular Nutrition, Southwest University, Chongqing 400715, P. R. China
| | - Rui An
- Sichuan Academy of Animal Science, Chengdu, 610066, P. R. China
| | - Zhongxiang Ren
- Department of Animal Science and Technology, Laboratory for Bio-feed and Molecular Nutrition, Southwest University, Chongqing 400715, P. R. China
| | - Qi Ding
- Department of Animal Science and Technology, Laboratory for Bio-feed and Molecular Nutrition, Southwest University, Chongqing 400715, P. R. China
| | - Kaiyang Liang
- Department of Animal Science and Technology, Laboratory for Bio-feed and Molecular Nutrition, Southwest University, Chongqing 400715, P. R. China
| | - Zhihong Sun
- Department of Animal Science and Technology, Laboratory for Bio-feed and Molecular Nutrition, Southwest University, Chongqing 400715, P. R. China
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Rey AI, De Cara A, Segura JF, Martí P, Hechavarría T, Calvo L. Dietary oleuropein extract supplementation and its combination with α-tocopheryl acetate and selenium modifies the free fatty acid profile of pork and improves its stability. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:2337-2344. [PMID: 33006761 DOI: 10.1002/jsfa.10855] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 08/27/2020] [Accepted: 10/02/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Olive-derived antioxidants have been shown to affect the oxidative status of meat and have also been associated with greater consumption of glucose, which might affect glycogen stores and muscle characteristics. This study evaluated the effect of oleuropein extract supplementation (OLE) versus vitamin E + Se (VE), and their combination (VEOLE), in pig diets, on pH, drip loss, the proportion of free fatty acids, and meat stability, and their prediction by blood oxidative status markers. RESULTS The drip loss of muscle was lower in antioxidant-supplemented groups when compared with controls. α-Tocopherol concentration and total fatty acids profile were not affected by dietary oleuropein supplementation. However, OLE and VEOLE had lower free n-3 polyunsaturated fatty acid (PUFA) levels when compared with VE and tended to have higher free monounsaturated fatty acid (MUFA) levels. Furthermore, the VEOLE group had lower free n-6 PUFA levels when compared with controls or VE, whereas the OLE group had intermediated values. Muscle samples from pigs subjected to the antioxidant-mixed supplementation (VEOLE) had lower malondialdehyde concentration when compared with the others. The VE and OLE groups showed intermediate malondialdehyde values. Chilled meat stability was highly correlated with antioxidant status in vivo. CONCLUSION The administration of 96 mg oleuropein kg-1 feed produced similar meat quality characteristics as the use of 100 mg kg-1 α-tocopheryl acetate +0.26 mg kg-1 sodium selenite and it would be an interesting alternative in Mediterranean countries. The VEOLE group was the most effective for reducing lipid oxidation and for the production of polyunsaturated free fatty acids in meat, which would result in lower rancidity formation and better aroma development in products. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Ana I Rey
- Dpto. Producción Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, Madrid, Spain
| | - Almudena De Cara
- Dpto. Producción Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, Madrid, Spain
| | - José Francisco Segura
- Dpto. Producción Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, Madrid, Spain
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Conte S, Pomar C, Paiano D, Duan Y, Zhang P, Lévesque J, Guay F, Devillers N, Faucitano L. The effects of feeding finishing pigs of two genders with a high fiber and high fat diet on muscle glycolytic potential at slaughter and meat quality. Meat Sci 2021; 177:108484. [PMID: 33756246 DOI: 10.1016/j.meatsci.2021.108484] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 01/13/2021] [Accepted: 02/24/2021] [Indexed: 11/30/2022]
Abstract
A total of 160 pigs, in groups of 8 pigs of mixed genders, were fed four finishing feeding strategies with the aim to reduce muscle glycolytic potential and improve meat quality. Pigs were fed a control diet (C; fat = 5.0%, ADF = 3.0%, NDF = 8.8%), a high-fat and high-fiber diet (HFF; fat = 11.2%, ADF = 9.1%, NDF = 19.5%), a blend of 50-50% C and HFF diets (fat = 8.2%, ADF = 6.7%, NDF = 14.2%) or the C diet and transferred to the HFF diet after a diet transition. Dietary treatments alone or in interaction with gender had no effect on pig growth performance, carcass quality traits, Longissimus and Semimembranosus muscle glycolytic potential and meat quality (P > 0.10). The inefficiency of the dietary treatments applied in this study may be due to the low ratio between fat and digestible carbohydrate in the diets combined with the mild pre-slaughter stress conditions pigs were exposed to.
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Affiliation(s)
- Sabine Conte
- Agriculture and Agri-Food Canada, Sherbrooke Research and Development Centre, Sherbrooke, QC J1M 0C8, Canada
| | - Candido Pomar
- Agriculture and Agri-Food Canada, Sherbrooke Research and Development Centre, Sherbrooke, QC J1M 0C8, Canada
| | - Diovani Paiano
- Department of Animal Science, Universidade do Estado de Santa Catarina, Chapecó 89815-630, Brazil
| | - Yan Duan
- College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot, China
| | - Pengfei Zhang
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Janie Lévesque
- Centre de Recherche en Sciences Animales, Deschambault, QC G0A 1S0, Canada
| | - Frederic Guay
- Université Laval, Department of Animal Science, Québec, QC G1V 0A6, Canada
| | - Nicolas Devillers
- Agriculture and Agri-Food Canada, Sherbrooke Research and Development Centre, Sherbrooke, QC J1M 0C8, Canada
| | - Luigi Faucitano
- Agriculture and Agri-Food Canada, Sherbrooke Research and Development Centre, Sherbrooke, QC J1M 0C8, Canada.
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10
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Liu J, Deng K, Pan M, Liu G, Wu J, Yang M, Huang D, Zhang W, Mai K. Dietary carbohydrates influence muscle texture of olive flounder Paralichthys olivaceus through impacting mitochondria function and metabolism of glycogen and protein. Sci Rep 2020; 10:21811. [PMID: 33311521 PMCID: PMC7732841 DOI: 10.1038/s41598-020-76255-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Accepted: 10/14/2020] [Indexed: 12/13/2022] Open
Abstract
The present study was conducted to estimate the effects of dietary carbohydrates on muscle quality and the underlying mechanisms. Six isonitrogenous and isolipidic diets were formulated to contain graded levels of carbohydrates (0%, 8%, 12%, 16%, 20% and 24%, respectively). These diets were named as C0, C8, C12, C16, C20 and C24, respectively. After a 10-week feeding trial, results showed that the muscle pH, liquid holding capacity (LHC) and hardness were significantly decreased by the increasing dietary carbohydrate levels. Dietary carbohydrates significantly decreased the muscle fibre diameter, and the highest value was found in the C0 group. Accumulated glycogen and degenerated mitochondrial cristae were observed in the C24 group. Significantly higher contents of protein carbonyls were observed in the C20 group and C24 group (P < 0.05). There was a significant decrease of mtDNA copy number in the C24 group compared with that in the C0 and C8 groups. The AMP/ATP ratio in muscle decreased first and then increased with the increasing dietary carbohydrate levels. The dietary incorporation of carbohydrate significantly reduced the expression of opa1, pygm and genes involved in myogenesis (myf5 and myog). Meanwhile, proteolysis-related genes (murf-1, mafbx, capn2 and ctsl), pro-inflammatory cytokines (il-6 and tnf-α) and mstn were significantly up-regulated. In the C24 group, significant increase of phosphorylation of AMPK (Thr172), up-regulation of PGC-1α and GLUT4 were observed, while the phosphorylation level of S6 (Ser235/236) was significantly decreased. It was concluded that excessive dietary carbohydrate level (24%) had negative impacts on mitochondria function and promoted glycogen accumulation, and thereafter influenced the muscle quality of olive flounder. The activation of AMPK as well as the upregulation of PGC-1α and GLUT4 was the key mechanism.
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Affiliation(s)
- Jiahuan Liu
- The Key Laboratory of Aquaculture Nutrition and Feeds (Ministry of Agriculture and Rural Affairs), the Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, Qingdao, 266003, China
| | - Kangyu Deng
- The Key Laboratory of Aquaculture Nutrition and Feeds (Ministry of Agriculture and Rural Affairs), the Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, Qingdao, 266003, China
- Shenzhen Alpha Group Co., Ltd., Shenzhen, China
| | - Mingzhu Pan
- The Key Laboratory of Aquaculture Nutrition and Feeds (Ministry of Agriculture and Rural Affairs), the Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, Qingdao, 266003, China
| | - Guangxia Liu
- The Key Laboratory of Aquaculture Nutrition and Feeds (Ministry of Agriculture and Rural Affairs), the Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, Qingdao, 266003, China
| | - Jing Wu
- The Key Laboratory of Aquaculture Nutrition and Feeds (Ministry of Agriculture and Rural Affairs), the Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, Qingdao, 266003, China
| | - Mengxi Yang
- The Key Laboratory of Aquaculture Nutrition and Feeds (Ministry of Agriculture and Rural Affairs), the Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, Qingdao, 266003, China
| | - Dong Huang
- The Key Laboratory of Aquaculture Nutrition and Feeds (Ministry of Agriculture and Rural Affairs), the Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, Qingdao, 266003, China
| | - Wenbing Zhang
- The Key Laboratory of Aquaculture Nutrition and Feeds (Ministry of Agriculture and Rural Affairs), the Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, Qingdao, 266003, China.
- Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Wen Hai Road, Qingdao, 266237, China.
| | - Kangsen Mai
- The Key Laboratory of Aquaculture Nutrition and Feeds (Ministry of Agriculture and Rural Affairs), the Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, Qingdao, 266003, China
- Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Wen Hai Road, Qingdao, 266237, China
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Liu X, Liu L, Wang J, Cui H, Chu H, Bi H, Zhao G, Wen J. Genome-Wide Association Study of Muscle Glycogen in Jingxing Yellow Chicken. Genes (Basel) 2020; 11:genes11050497. [PMID: 32366026 PMCID: PMC7290304 DOI: 10.3390/genes11050497] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 04/14/2020] [Accepted: 04/14/2020] [Indexed: 01/13/2023] Open
Abstract
Glucose metabolism plays an important role in many normal and pathological physiological processes in the body. The breakdown and synthesis of muscle glycogen provides ATP for muscle activities. A genome-wide association study for muscle glycogen was performed in 473 Jingxing yellow chickens to identify significant single nucleotide polymorphisms (SNPs) and insertions and deletions (INDELs) involved in muscle glycogen metabolism. A total of nine SNPs (p < 1/699341) and three INDELs (p < 1/755733) reached a significant level of potential association. The following results were obtained through a series of analyses, including additive effects and gene function annotation. Two significant SNPs were found in introns 12 and 13 of copine 4 (CPNE4) on chromosome 2. The wild-type and mutant individuals had significant differences in glycogen metabolism at two loci (p < 0.01 for both). Individuals carrying two mutations had increased muscle glycogen content. According to the gene annotation of chromosome 11, there is a significant INDEL in intron 6 of naked cuticle homolog 1 (NKD1). After the INDEL mutation, the glycogen content increased significantly. There was a significant difference between wild-type and mutant individuals (p < 0.01). These mutations likely affecting two genes (CPNE4 and NKD1) may affect glycogen storage in a pleiotropic manner. Gene annotation indicates that CPNE4 and NKD1 may affect the process of glucose metabolism. Our findings contribute to understanding the genetic regulation of muscle glycogen metabolism and provide theoretical support.
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Affiliation(s)
- Xiaojing Liu
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (X.L.); (L.L.); (J.W.); (H.C.); (G.Z.)
| | - Lu Liu
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (X.L.); (L.L.); (J.W.); (H.C.); (G.Z.)
| | - Jie Wang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (X.L.); (L.L.); (J.W.); (H.C.); (G.Z.)
| | - Huanxian Cui
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (X.L.); (L.L.); (J.W.); (H.C.); (G.Z.)
| | - Huanhuan Chu
- Yantai Dadi Animal Husbrandry Co., Ltd., Yantai 1265100, China; (H.C.); (H.B)
| | - Huijuan Bi
- Yantai Dadi Animal Husbrandry Co., Ltd., Yantai 1265100, China; (H.C.); (H.B)
| | - Guiping Zhao
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (X.L.); (L.L.); (J.W.); (H.C.); (G.Z.)
| | - Jie Wen
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (X.L.); (L.L.); (J.W.); (H.C.); (G.Z.)
- Correspondence:
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12
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Rey A, Menoyo D, Segura J, López-Bote C, Calvo L. Combination of dietary glycaemic index and fasting time prior to slaughter as strategy to modify quality of pork. Meat Sci 2020; 161:108013. [DOI: 10.1016/j.meatsci.2019.108013] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 10/31/2019] [Accepted: 11/14/2019] [Indexed: 10/25/2022]
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Changes in Plasma Fatty Acids, Free Amino Acids, Antioxidant Defense, and Physiological Stress by Oleuropein Supplementation in Pigs Prior to Slaughter. Antioxidants (Basel) 2020; 9:antiox9010056. [PMID: 31936246 PMCID: PMC7022758 DOI: 10.3390/antiox9010056] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 12/30/2019] [Accepted: 12/31/2019] [Indexed: 12/11/2022] Open
Abstract
Olive tree leaves are characterized for having not only a potent antioxidant power but also effects on glucose and lipid metabolism. The impact of the individual oleuropein (OLE), vitamin E + Se (VE), or a combined supplementation of oleuropein, vitamin E, and selenium (VEOLE) was evaluated on pig plasma metabolites under fasting prior to slaughter. VEOLE and OLE had lesser n-3 plasma polyunsaturated fatty acids and greater monounsaturated free fatty acids compared to control. The n-3-fatty acid mobilization was directly correlated with greater cystine and inversely with oxidized glutathione/reduced glutathione (GSSH/GSH) levels. This faster use of n-3 fatty acids might act as an indicator of glutathione synthesis mediated by an increase of cystine in plasma. Different correlations and linear adjustments were observed between plasma antioxidant power and free cystine, free glycine, free glutamine, monounsaturated free fatty acids, and total n-3. The best response to stress was found in VEOLE. Cortisol reached the greatest positive correlation with plasma total n-3 fatty acids, which suggests a faster uptake of n-3 for biological functions such as stress control or energy supply in the brain. From a practical point of view, an enhanced oxidative status as well as control of physiological stress prior to slaughter by the combined antioxidants supplementation might have positive effects on pork quality.
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Reiche AM, Oberson JL, Silacci P, Messadène-Chelali J, Hess H, Dohme-Meier F, Dufey PA, Terlouw E. Pre-slaughter stress and horn status influence physiology and meat quality of young bulls. Meat Sci 2019; 158:107892. [DOI: 10.1016/j.meatsci.2019.107892] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 04/23/2019] [Accepted: 07/22/2019] [Indexed: 10/26/2022]
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15
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Przybylski W, Jaworska D, Sałek P, Sobol M, Branicki M, Skiba G, Raj S, Jankiewicz U. The effect of inulin supply to high-fat diet rich in saturated fatty acids on pork quality and profile of sarcoplasmic protein in meat exudate. J Anim Physiol Anim Nutr (Berl) 2019; 103:593-602. [PMID: 30552727 DOI: 10.1111/jpn.13039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 11/08/2018] [Accepted: 11/10/2018] [Indexed: 12/01/2022]
Abstract
The aim of the study was to evaluate the influence of inulin supply to high-fat diet rich in saturated fatty acids (SFA) on pork quality and profile of sarcoplasmic protein in drip loss. At 50 days of age, twenty cross-bred pigs (gilts) were randomly allotted to four groups: the control (C) group fed a standard diet, and three experimental (D1, D2 and D3) groups fed a high-fat diet rich in SFA. Moreover, pigs from the groups D2 and D3 consumed an extra inulin supply (7% of daily feed intake) from 85 to 120 days of age (for 5 weeks) and from 50 to 120 days of age (for 10 weeks) respectively. The addition of inulin to the diet reduced meaty odour and flavour significantly, improved tenderness and overall sensory quality of pork and additionally influenced ultimate pH, L* colour parameter, lactate level and protein content in meat. The diets also affected the profile of sarcoplasmic proteins. Significant effects were observed for the following enzymes-PK/PGI (pyruvate kinase/phosphoglucose isomerase) and ALD (aldolase), which are related to the intensity of post-mortem glycolysis. Presented data indicate that long-term inulin supply to high-fat diet has a positive effect on technological and sensory quality as well as protein profile of pork.
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Affiliation(s)
- Wiesław Przybylski
- Faculty of Human Nutrition and Consumer Sciences, Warsaw University of Life Sciences, Warszawa, Poland
| | - Danuta Jaworska
- Faculty of Human Nutrition and Consumer Sciences, Warsaw University of Life Sciences, Warszawa, Poland
| | - Piotr Sałek
- Faculty of Human Nutrition and Consumer Sciences, Warsaw University of Life Sciences, Warszawa, Poland
| | - Monika Sobol
- The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Jabłonna, Poland
| | - Maciej Branicki
- Faculty of Human Nutrition and Consumer Sciences, Warsaw University of Life Sciences, Warszawa, Poland
| | - Grzegorz Skiba
- The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Jabłonna, Poland
| | - Stanisława Raj
- The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Jabłonna, Poland
| | - Urszula Jankiewicz
- Department of Biochemistry, Faculty of Agriculture and Biology, Warsaw University of Life Sciences - SGGW, Warsaw, Poland
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The effects of including corn silage, corn stalk silage, and corn grain in finishing ration of beef steers on meat quality and oxidative stability. Meat Sci 2018; 139:142-148. [DOI: 10.1016/j.meatsci.2018.01.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 01/27/2018] [Accepted: 01/28/2018] [Indexed: 11/22/2022]
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17
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Cong J, Zhang L, Li J, Wang S, Gao F, Zhou G. Effects of dietary supplementation with carnosine on growth performance, meat quality, antioxidant capacity and muscle fiber characteristics in broiler chickens. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2017; 97:3733-3741. [PMID: 28120335 DOI: 10.1002/jsfa.8236] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Revised: 01/09/2017] [Accepted: 01/20/2017] [Indexed: 06/06/2023]
Abstract
BACKGROUND The effects of dietary carnosine were evaluated on the growth performance, meat quality, antioxidant capacity and muscle fiber characteristics in thigh muscle of 256 one-day-old male broilers assigned to four diets - basal diets supplemented with 0, 100, 200 or 400 mg kg-1 carnosine respectively - during a 42 day experiment. RESULTS Carnosine concentration and carnosine synthase expression in thigh muscle were linearly increased (P < 0.05) and the feed/gain ratio was decreased (P < 0.05) in the starter period by carnosine addition. Dietary supplementation with carnosine resulted in linear increases in pH45min , redness and cohesiveness and decreases in drip loss, cooking loss, shear force and hardness (P < 0.05). Carnosine addition elevated the activities of antioxidant enzymes and reduced contents of malondialdehyde and carbonyl compounds (P < 0.05). Dietary carnosine linearly decreased diameters and increased densities of muscle fibers (P < 0.01). The ratios of myosin heavy chain (MyHC) I and IIa were increased while that of MyHC IIb was decreased (P < 0.01). The mRNA expressions of genes related to fiber type transformation were linearly up-regulated (P < 0.05). CONCLUSION These findings indicated that carnosine supplementation was beneficial to improve the growth performance, meat quality, antioxidant capacity and muscle fiber characteristics of broilers. © 2017 Society of Chemical Industry.
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Affiliation(s)
- Jiahui Cong
- College of Animal Science and Technology, Key Laboratory of Animal Origin Food Production and Safety Guarantee of Jiangsu Province, Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control, Nanjing Agricultural University, Nanjing, China
| | - Lin Zhang
- College of Animal Science and Technology, Key Laboratory of Animal Origin Food Production and Safety Guarantee of Jiangsu Province, Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control, Nanjing Agricultural University, Nanjing, China
| | - Jiaolong Li
- College of Animal Science and Technology, Key Laboratory of Animal Origin Food Production and Safety Guarantee of Jiangsu Province, Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control, Nanjing Agricultural University, Nanjing, China
| | - Shuhao Wang
- College of Animal Science and Technology, Key Laboratory of Animal Origin Food Production and Safety Guarantee of Jiangsu Province, Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control, Nanjing Agricultural University, Nanjing, China
| | - Feng Gao
- College of Animal Science and Technology, Key Laboratory of Animal Origin Food Production and Safety Guarantee of Jiangsu Province, Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control, Nanjing Agricultural University, Nanjing, China
| | - Guanghong Zhou
- College of Animal Science and Technology, Key Laboratory of Animal Origin Food Production and Safety Guarantee of Jiangsu Province, Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control, Nanjing Agricultural University, Nanjing, China
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Kim HJ, Nam SO, Jeong JH, Fang LH, Yoo HB, Yoo SH, Hong JS, Son SW, Ha SH, Kim YY. Various levels of copra meal supplementation with β-Mannanase on growth performance, blood profile, nutrient digestibility, pork quality and economical analysis in growing-finishing pigs. JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2017; 59:19. [PMID: 28725450 PMCID: PMC5513317 DOI: 10.1186/s40781-017-0144-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Accepted: 06/19/2017] [Indexed: 11/10/2022]
Abstract
BACKGROUND To reduce use of main feed ingredient like corn, soy bean meal (SBM) and wheat, alternative ingredients has been studied like copra meal (CM). Production amount of CM which has been high makes CM to be an alternative feed stuff. However, low digestibility on AA and low energy content by high fiber content can be an obstacle for using CM. This experiment was conducted to evaluate the effects of CM supplementation with β-mannanase on growth performance, blood profile, nutrient digestibility, pork quality and economic analysis in growing-finishing pigs. METHODS A total of 100 growing pigs ([Yorkshire × Landrace] × Duroc) averaging 31.22 ± 2.04 kg body weight were allotted to 5 different treatments by weight and sex in a randomized complete block (RCB) design in 5 replicate with 4 pigs per pen. Treatments were 1) Control (corn-SBM based diet + 0.1% of β-mannanase (800 IU)), 2) CM10 (10% copra meal + 0.1% β-mannanase (800 IU)), 3) CM15 (15% copra meal + 0.1% β-mannanase (800 IU)), 4) CM20 (20% copra meal + 0.1% β-mannanase (800 IU)) and 5) CM25 (25% copra meal + 0.1% β-mannanase (800 IU)). Four phase feeding program was used: growing I (week 1-3), growing II (week 4-6), finishing I (week 7-9) and finishing II (week 10-12). RESULTS In growth performance, there was no significant difference among treatments during whole experimental period. In growingI phase, G:F ratio tended to increase when CM was increased (P = 0.05), but ADG and ADFI tended to decrease in finishingII phase (linear, P = 0.08). Also, increasing CM reduced ADG (linear, P = 0.02) and feed efficiency (linear, P = 0.08) during the whole finishing period. In blood profiles, BUN was linearly increased as CM increased (linear, P = 0.02) at growingII period. In digestibility trial, there was no significant difference in dry matter, crude fat, crude ash and nitrogen digestibility. However, crude protein digestibility was decreased linearly (linear, P = 0.02). In economic analysis, feed cost per weight gain and total feed cost per pig were reduced in overall period when CM was provided by 25% (linear, P = 0.02). CONCLUSION CM with 0.1% of β-mannanase (800 IU) could be supplemented instead of corn and SBM up to 25% without detrimental effects on growth performance and pork quality of growing-finishing pigs.
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Affiliation(s)
- H J Kim
- Department of Agricultural Biotechnology, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826 Republic of Korea
| | - S O Nam
- Department of Agricultural Biotechnology, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826 Republic of Korea
| | - J H Jeong
- Department of Agricultural Biotechnology, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826 Republic of Korea
| | - L H Fang
- Department of Agricultural Biotechnology, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826 Republic of Korea
| | - H B Yoo
- Department of Agricultural Biotechnology, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826 Republic of Korea
| | - S H Yoo
- Department of Agricultural Biotechnology, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826 Republic of Korea
| | - J S Hong
- Department of Agricultural Biotechnology, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826 Republic of Korea
| | - S W Son
- PuKyung Pig Farmers Agricultural Cooperative, Gimhae, 50925 Republic of Korea
| | - S H Ha
- PuKyung Pig Farmers Agricultural Cooperative, Gimhae, 50925 Republic of Korea
| | - Y Y Kim
- Department of Agricultural Biotechnology, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826 Republic of Korea
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Stufft K, Elgin J, Patterson B, Matarneh S, Preisser R, Shi H, England E, Scheffler T, Mills E, Gerrard D. Muscle characteristics only partially explain color variations in fresh hams. Meat Sci 2017; 128:88-96. [DOI: 10.1016/j.meatsci.2016.12.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 12/22/2016] [Accepted: 12/22/2016] [Indexed: 10/20/2022]
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Lima EDS, Morais JPGD, Roça RDO, Valente TNP, Andrade END, Deminicis BB. Performance and carcass characteristics of cattle fed lipid sources in the diet. CANADIAN JOURNAL OF ANIMAL SCIENCE 2016. [DOI: 10.1139/cjas-2015-0203] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The aim of this study was to determine the effect of the inclusion of different lipid sources [whole cottonseed (CS) and protected fat in diets containing sugarcane, corn, citrus pulp, CS meal, and urea] on animal performance, hot carcass dressing (HCD), ribeye area (RA), fat thickness (FT), and postmortem pH of the meat of Nellore cattle during finishing. The treatments evaluated were feed with 2.50% CS (control diet, T1 treatment); feed with 11.50% CS (high CS, T2 treatment); and feed with 3.13% CS added of protected lipid (PL) (T3 treatment), all on a DM basis. The forage:concentrate ratio of the diet was 50:50. Thirty-nine intact steers with average initial body weight of 494 kg and 36 months old were confined for 63 d. The addition of lipid sources tested in this study did not affect dry matter intake, crude protein intake, neutral detergent fiber intake, final live weight, average daily weight gain, HCD, RA, FT, and meat pH. It was concluded that the addition of PLs in the diet did not affect weight gain and carcass characteristics.
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Jiang N, Wang P, Xing T, Han M, Xu X. An evaluation of the effect of water-misting sprays with forced ventilation on the occurrence of pale, soft, and exudative meat in transported broilers during summer: Impact of the thermal microclimate1. J Anim Sci 2016; 94:2218-27. [DOI: 10.2527/jas.2015-9823] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- N. Jiang
- Key Laboratory of Meat Processing and Quality Control, Ministry of Education, Synergetic Innovation Center of Food Safety and Nutrition, Key Laboratory of Animal Products Processing, Ministry of Agriculture, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - P. Wang
- Key Laboratory of Meat Processing and Quality Control, Ministry of Education, Synergetic Innovation Center of Food Safety and Nutrition, Key Laboratory of Animal Products Processing, Ministry of Agriculture, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - T. Xing
- Key Laboratory of Meat Processing and Quality Control, Ministry of Education, Synergetic Innovation Center of Food Safety and Nutrition, Key Laboratory of Animal Products Processing, Ministry of Agriculture, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - M. Han
- Key Laboratory of Meat Processing and Quality Control, Ministry of Education, Synergetic Innovation Center of Food Safety and Nutrition, Key Laboratory of Animal Products Processing, Ministry of Agriculture, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - X. Xu
- Key Laboratory of Meat Processing and Quality Control, Ministry of Education, Synergetic Innovation Center of Food Safety and Nutrition, Key Laboratory of Animal Products Processing, Ministry of Agriculture, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
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Girard M, Dohme-Meier F, Silacci P, Ampuero Kragten S, Kreuzer M, Bee G. Forage legumes rich in condensed tannins may increase n-3 fatty acid levels and sensory quality of lamb meat. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2016; 96:1923-1933. [PMID: 26059039 DOI: 10.1002/jsfa.7298] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2014] [Revised: 04/17/2015] [Accepted: 06/02/2015] [Indexed: 06/04/2023]
Abstract
BACKGROUND Tannins intensively interact with rumen microbes, which is expected to have consequences for meat quality. RESULTS Silages prepared from birdsfoot trefoil (BT), sainfoin (SF), alfalfa (AF) or red clover (RC) were fed alone to 48 lambs. The SF contained five times more condensed tannins than BT, the other tanniferous plant. Growth and carcass performance, but not general meat quality, was reduced with BT and SF compared to AF and RC. Lambs fed SF had half the skatole levels in the perirenal fat than AF-fed lambs. The longissimus thoracis et lumborum muscle of the SF-fed lambs, compared to RC and BT, had a lower intensity for 'livery' and 'sheepy' flavors but a stronger 'grassy' flavor. The intramuscular fat of BT- and SF-fed lambs contained less saturated and more polyunsaturated fatty acids, especially 20:4n-6, 20:3n-6, 20:5n-3 and 22:5n-3, with SF being more efficient than BT. CONCLUSION The SF was most promising to increase beneficial fatty acids and to reduce skatole content in lamb meat.
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Affiliation(s)
- Marion Girard
- Agroscope, Institute for Livestock Sciences (ILS), 1725, Posieux, Switzerland
- ETH Zurich, Institute of Agricultural Sciences, 8092, Zurich, Switzerland
| | - Frigga Dohme-Meier
- Agroscope, Institute for Livestock Sciences (ILS), 1725, Posieux, Switzerland
| | - Paolo Silacci
- Agroscope, Institute for Livestock Sciences (ILS), 1725, Posieux, Switzerland
| | | | - Michael Kreuzer
- ETH Zurich, Institute of Agricultural Sciences, 8092, Zurich, Switzerland
| | - Giuseppe Bee
- Agroscope, Institute for Livestock Sciences (ILS), 1725, Posieux, Switzerland
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Jiang N, Xing T, Han M, Deng S, Xu X. Effects of water-misting sprays with forced ventilation on post mortem glycolysis, AMP-activated protein kinase and meat quality of broilers after transport during summer. Anim Sci J 2015; 87:718-28. [PMID: 26712455 DOI: 10.1111/asj.12467] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 04/07/2015] [Accepted: 04/27/2015] [Indexed: 11/29/2022]
Abstract
Effects of water-misting sprays with forced ventilation on post mortem glycolysis, adenosine monophosphate-activated protein kinase (AMPK) and meat quality of broilers after transport during summer were investigated in the present paper. A total of 105 mixed-sex Arbor Acres broilers were divided into three treatment groups: (i) 45 min transport without rest (T); (ii) 45 min transport with 1 h rest (TR); and (iii) 45 min transport with 15 min water-misting sprays with forced ventilation and 45 min rest (TWFR). Each treatment consisted of five replicates with seven birds each. The results indicated that the water-misting sprays with forced ventilation could mitigate the stress caused by transport under high temperature conditions during summer, which reduced the energy depletion in post mortem Pectoralis major (PM) muscle. This resulted in a higher energy status compared to the T group, which would decrease the expression of phosphorylation of AMPK (p-AMPK). Furthermore, decreased the expression of p-AMPK then slowed down the rate of glycolysis in post mortem PM muscle during the early post mortem period, which in turn lessened the negative effects caused by transport on meat quality. In conclusion, water-misting sprays with forced ventilation may be a better method to control the incidence of the pale, soft and exudative meat in broilers.
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Affiliation(s)
- Nannan Jiang
- Key Laboratory of Meat Processing and Quality Control, Ministry of Education, Synergetic Innovation Center of Food Safety and Nutrition, Key Laboratory of Animal Products Processing, Ministry of Agriculture, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Tong Xing
- Key Laboratory of Meat Processing and Quality Control, Ministry of Education, Synergetic Innovation Center of Food Safety and Nutrition, Key Laboratory of Animal Products Processing, Ministry of Agriculture, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Minyi Han
- Key Laboratory of Meat Processing and Quality Control, Ministry of Education, Synergetic Innovation Center of Food Safety and Nutrition, Key Laboratory of Animal Products Processing, Ministry of Agriculture, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Shaolin Deng
- Key Laboratory of Meat Processing and Quality Control, Ministry of Education, Synergetic Innovation Center of Food Safety and Nutrition, Key Laboratory of Animal Products Processing, Ministry of Agriculture, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Xinglian Xu
- Key Laboratory of Meat Processing and Quality Control, Ministry of Education, Synergetic Innovation Center of Food Safety and Nutrition, Key Laboratory of Animal Products Processing, Ministry of Agriculture, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China
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Li Y, Li J, Zhang L, Yu C, Lin M, Gao F, Zhou G, Zhang Y, Fan Y, Nuldnali L. Effects of Dietary Energy Sources on Post Mortem Glycolysis, Meat Quality and Muscle Fibre Type Transformation of Finishing Pigs. PLoS One 2015; 10:e0131958. [PMID: 26125946 PMCID: PMC4488424 DOI: 10.1371/journal.pone.0131958] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Accepted: 06/08/2015] [Indexed: 12/29/2022] Open
Abstract
Dietary energy source can influence muscle glycogen storage at slaughter. However, few studies have demonstrated whether the diet-induced change of muscle glycogen is achieved by the transformation of muscle fibre type. This study investigated the effects of dietary energy sources on meat quality, post mortem glycolysis and muscle fibre type transformation of finishing pigs. Seventy-two barrows with an average body weight of 65.0 ± 2.0 kg were selected and were allotted to three iso-energetic and iso-nitrogenous diets A, B or C, and each treatment consisted of three replicates (pens) of eight pigs each. Diet A contained 44.1% starch, 5.9% crude fat and 12.6% neutral detergent fiber (NDF); diet B contained 37.6% starch, 9.5% crude fat and 15.4% NDF; and diet C contained 30.9% starch, 14.3% crude fat and 17.8% NDF. The duration of the experiment was 28 days. After feed withdrawal 12 h, 24 pigs (eight per treatment) were slaughtered, samples from M. longissimus lumborum (LL) were collected for subsequent analysis. The results showed that pigs fed diet C had lesser average daily gain, average daily feed intake and back fat depth than those fed diet A (P<0.05). Diet C increased pH45min (P<0.05) and decreased drip loss (P<0.05) in LL muscles compared with diet A. Meat from pigs fed diet A showed increased contents of lactate and greater glycolytic potential (GP) compared with those fed diet C (P<0.05). Greater mRNA expression of myosin heavy-chain (MyHC)-I and IIa and lesser expression of MyHC-IIx and IIb (P<0.05) in LL muscles were found in pigs fed diet C, than in pigs fed diet A. In addition, pigs fed diet C resulted in downregulation of miR23a and upregulation of miR409 and miR208b (P<0.05), associated with conserved changes of their corresponding targets. These findings indicated that diets containing low starch and high fibre were beneficial in reducing muscle glycolysis, improving meat quality of finishing pigs. This reduction of GP may be partially associated with the improvement of oxidative fibre composition in LL muscle, and the change in myofibre type may be correlated with the change in the miRNA expression.
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Affiliation(s)
- Yanjiao Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
- Key Laboratory of Animal Origin Food Production and Safety Guarantee of Jiangsu Province, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Jiaolong Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
- Key Laboratory of Animal Origin Food Production and Safety Guarantee of Jiangsu Province, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Lin Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
- Key Laboratory of Animal Origin Food Production and Safety Guarantee of Jiangsu Province, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Changning Yu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
- Synergetic Innovation Center of Food Safety and Nutrition, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Meng Lin
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
- Synergetic Innovation Center of Food Safety and Nutrition, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Feng Gao
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
- Key Laboratory of Animal Origin Food Production and Safety Guarantee of Jiangsu Province, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
- * E-mail:
| | - Guanghong Zhou
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
- Synergetic Innovation Center of Food Safety and Nutrition, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Yu Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Yuanfang Fan
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Lina Nuldnali
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
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Turyk Z, Osek M, Olkowski B, Janocha A. Pig Feeding under the Potato-green Forage Base System with or without Addition of Herbs versus a Concentrate Based System: Effect on Post-slaughter Performance and Pork Characteristics. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2014; 27:683-9. [PMID: 25050003 PMCID: PMC4093189 DOI: 10.5713/ajas.2012.12543] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/03/2012] [Revised: 12/19/2012] [Accepted: 01/08/2014] [Indexed: 11/27/2022]
Abstract
This study examined carcass and meat quality parameters in growing/finishing pigs fed unconventionally versus the concentrate-based system. Ninety-six, 12 wk old pigs (34±SD 0.3 kg) were randomly divided into three groups, assigned to one of the three dietary treatments: standard complete concentrate mixture, conventional (C diet); unconventional, steamed potato-green forage-concentrate based diet (U diet), and unconventional basal diet+herbage mix (UH diet). Pigs fed U diet showed lower dressing percentage, meatiness, loin eye area, and weight of pork neck (p≤0.05), but their carcasses were significantly (p≤0.05) longer and had increased backfat depth (p≤0.05). There was no impact of the diet on the meat content of dry matter, crude ash, acidity, and colour parameters of m. longissimus. Unconventional feeding significantly (p≤0.05) elevated water the holding capacity of m. longissimus and slightly improved the sensory attributes analysis of meat. The addition of herbs resulted in increased loin eye area (p≤0.05), decreased fat content (p≤0.05) in m. longissimus, and tended to improve some sensory attributes of meat. There were significant gender differences in response to all diets. There were significant diet×sex interactions for some measured variables, but there were no clearly identifiable trends with regard to any specific carcass or meat parameters. Feeding unconventional diet to pigs may offer better culinary attributes of the meat, and improve some technologically important characteristics of pig carcass, but may negatively affect some carcass or meat parameters.
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Affiliation(s)
| | | | - Bogusław Olkowski
- Corresponding Author: B. Olkowski. Tel: +48-25-6431249, Fax: +48-25-6431267, E-mail:
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26
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Lee CH, Jung DY, Choi JS, Jin SK, Lee CY. Effects of the Plane of Nutrition on Physicochemical Characteristics and Sensory Quality Traits of the Muscle in Finishing Pigs. Korean J Food Sci Anim Resour 2014; 34:516-24. [PMID: 26761290 PMCID: PMC4662156 DOI: 10.5851/kosfa.2014.34.4.516] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Revised: 07/28/2014] [Accepted: 07/28/2014] [Indexed: 11/06/2022] Open
Abstract
This study was performed to examine the feasibility of using the low plane of nutrition (LPN) as a means of improving the meat quality of crossbred finishing pigs with a medium weight gain potential. Twenty-four barrows and 24 gilts weighing approximately 48 kg were placed on LPN [a finisher (2.86 Mcal ME/kg and 0.67% lysine) for 91 d] or on a high plane of nutrition [HPN; a commercial grower for 38 d and a finisher (3.35 Mcal ME/kg and 0.9% lysine) for 46 d]. Five barrows and five gilts per treatment weighing approximately 125 kg were slaughtered after the indicated days on the respective diets, followed by physicochemical analysis and sensory evaluation on their muscles. Overall average daily gain was 12.6% less in the LPN group vs. the HPN group (p<0.05). The redness (a*) of fresh longissimus muscle (LM) from the loin as well as from Boston butt was greater in the LPN group vs. HPN whereas the shear force for fresh LM from these primals and semimembranosus muscle was lower in the former. In sensory evaluation for cooked LM, no treatment effect was detected in any of the quality traits examined, except for a lower color score in the LPN vs. HPN group. Results suggest that meat quality of the finishing pigs can be improved to some extent by using LPN. However, the present pigs, whose backfat thickness was 24 mm at 125 kg, are thought not to be lean enough to be fattened over 120 kg.
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Affiliation(s)
- Chai Hyun Lee
- Department of Animal Resources Technology, Gyeongnam National University of Science and Technology, Jinju 660-758, Korea
| | - Dae-Yun Jung
- Department of Animal Resources Technology, Gyeongnam National University of Science and Technology, Jinju 660-758, Korea
| | - Jung Seok Choi
- Swine Science and Technology Center, Gyeongnam National University of Science and Technology, Jinju 660-758, Korea
| | - Sang-Keun Jin
- Department of Animal Resources Technology, Gyeongnam National University of Science and Technology, Jinju 660-758, Korea
| | - Chul Young Lee
- Regional Animal Industry Center, Gyeongnam National University of Science and Technology, Jinju 660-758, Korea
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27
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Peinado J, Serrano M, Nieto M, Sánchez J, Medel P, Mateos G. The effects of gender and castration of females on performance and carcass and meat quality of heavy pigs destined to the dry-cured industry. Meat Sci 2012; 90:715-20. [DOI: 10.1016/j.meatsci.2011.11.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2009] [Revised: 10/25/2011] [Accepted: 11/02/2011] [Indexed: 10/15/2022]
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28
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Men XM, Deng B, Xu ZW, Tao X. Muscle-fibre types in porcine longissimus muscle of different genotypes and their association with the status of energy metabolism. ANIMAL PRODUCTION SCIENCE 2012. [DOI: 10.1071/an11185] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
To study the difference in muscle-fibre types in porcine muscle among different genotypes and its association with energy metabolism, composition of myosin heavy chain (MyHC) mRNA and energy metabolism indices were determined in the longissimus muscle (LM). Pig breeds included Jinhua (JHP), Zhongbai (ZBP), Duroc × Zhongbai cross (DZP) and Duroc × Yorkshire × Landrace cross (DYL). JHP pigs were found to have the highest proportions of MyHC I, IIa and IIx mRNA (P < 0.05), creatine kinase (CK) activity (P < 0.05) and the lowest glycolytic potential (GP) compared with the other genotypes. The proportions of MyHC I and IIa mRNA increased in the order of DYL < DZP < ZBP < JHP, whereas the trend was opposite for MyHC IIb mRNA. The proportions of MyHC I, IIa and IIx mRNA were positively correlated with CK activity and the turnover ratio of creatine phosphate (CP) (P < 0.01), and negatively correlated with GP, glucose-6-phosphate (G-6-P) and lactate (LA) contents (P < 0.01), with the trends being opposite for MyHC IIb mRNA. The results indicate that muscle-fibre type in porcine LM is influenced by the genetic background of pigs. For example, JHP pigs had more of Types I, IIa and IIx fibres than did other genotypes. Proportions of Types I, IIa and IIx fibres were positively correlated with CK reaction (ATP-CP) capacity and negatively correlated with GP. These data provide some evidence for exploring the effective mechanism of muscle-fibre type on pork quality.
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29
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Jlali M, Gigaud V, Métayer-Coustard S, Sellier N, Tesseraud S, Le Bihan-Duval E, Berri C. Modulation of glycogen and breast meat processing ability by nutrition in chickens: effect of crude protein level in 2 chicken genotypes. J Anim Sci 2011; 90:447-55. [PMID: 21984711 DOI: 10.2527/jas.2011-4405] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The aim of the study was to evaluate the impact of 2 isoenergetic growing diets with different CP (17 vs. 23%) on the performance and breast meat quality of 2 lines of chicken divergently selected for abdominal fatness [i.e., fat and lean (LL) lines]. Growth performance, breast and abdominal fat yields, breast meat quality parameters (pH, color, drip loss), and muscle glycogen storage at death were measured. Increased dietary CP resulted in increased BW, increased breast meat yield, and reduced abdominal fatness at slaughter regardless of genotype (P < 0.001). By contrast, dietary CP affected glycogen storage and the related meat quality parameters only in the LL chickens. Giving LL chickens the low-CP diet led to reduced concentration of muscle glycogen (P < 0.01), and as a result, breast meat with a higher (P < 0.001) ultimate pH, decreased (P < 0.001) lightness, and reduced (P < 0.001) drip loss during storage. The decreased muscle glycogen content observed in LL receiving the low-CP diet compared with the high-CP diet occurred concomitantly with greater phosphorylation amount for the α-catalytic subunit of adenosine monophosphate-activated protein kinase and glycogen synthase. This was consistent with the reduced muscle glycogen content observed in LL fed the low-CP diet because adenosine monophosphate-activated protein kinase inhibits glycogen synthesis through its action on glycogen synthase. Our results demonstrated that nutrition is an effective means of modulating breast meat properties in the chicken. The results also highlighted the need to take into account interaction with the genetic background of the animal to select nutritional strategies to improve meat quality traits in poultry.
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Affiliation(s)
- M Jlali
- INRA, UR83, Recherches Avicoles, F-37380 Nouzilly, France
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30
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Xu L, Yue HY, Wu SG, Zhang HJ, Ji F, Zhang L, Qi GH. Comparison of blood variables, fiber intensity, and muscle metabolites in hot-boned muscles from electrical- and gas-stunned broilers. Poult Sci 2011; 90:1837-43. [PMID: 21753223 DOI: 10.3382/ps.2010-01331] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The aim of this study was to compare the effects of gas stunning (GS) and electrical stunning (ES) on energy metabolism in Arbor Acres broilers. Thirty-six birds were slaughtered without stunning (control) or after stunning with the following treatments: 40% CO(2) + 21% O(2) + N(2) (G40%); 60% CO(2) + 21% O(2) + N(2) (G60%); 35 V, 47 mA, 400 Hz (E35V); 50 V, 67 mA, 160 Hz (E50V); and 65 V, 86 mA, 1,000 Hz (E65V). Muscle samples were obtained from the pectoralis major (breast) and tibialis anterior (leg) muscles in ambient temperature within 45 min postmortem and stored at -80°C. Blood pH decreased consistently with GS (G40% and G60%) compared with ES and the control (P < 0.01). No consistent differences were observed between GS and ES in the plasma variables, glycolytic potential, adenosine phosphates, or fiber intensities. Plasma lactate increased with G40% and E35V (P < 0.05), whereas plasma uric acid and urea nitrogen increased with E35V (P < 0.05) compared with the control. Compared with the control, the intensity of type IIB fibers decreased in broilers stunned with E35V and E50V (P < 0.05) and glycolytic potential increased (P < 0.01) with G60% in the breast muscle and decreased (P < 0.01) in the leg muscle with all the stunning treatments except for E50V. Energy decreased (lower adenosine triphosphate, higher adenosine monophosphate, and adenosine monophosphate:adenosine triphosphate ratio, P < 0.05) in breast muscle with G40% compared with ES at high currents (E50V and E65V). However, the adenosine phosphates with GS were not significantly different (P > 0.05) from ES at low current (E35V) in either breast or leg muscle. In conclusion, no essential difference in energy metabolism was found in broilers stunned with ES and GS when ES was based on low current and high frequency and GS was based on hypercapnic moderate oxygenation. This study indicated that G40% was potentially a superior stunning variable.
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Affiliation(s)
- L Xu
- Key Laboratory of Feed Biotechnology of Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
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31
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Chaosap C, Parr T, Wiseman J. Effect of compensatory growth on forms of glycogen, postmortem proteolysis, and meat quality in pigs. J Anim Sci 2011; 89:2231-42. [PMID: 21317347 DOI: 10.2527/jas.2010-2953] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The current experiment was designed to examine if a compensatory feed regimen influenced storage of glycogen forms, activity of proteolytic systems, and meat quality. Female pigs (Large White × Landrace × Duroc cross) with an initial age of 74 d were allocated to 6 feeding treatment groups (n=8 for each group). Groups then consumed feed ad libitum for 40 (A40), 42 (A42), or 82 d (A82). The compensatory growth groups were fed 0.70 of ad libitum intake for 40 d (R40) followed by refeeding for ad libitum intake for 2 (R40A2) or 42 d (R40A42). Pigs were slaughtered at the end of the restriction period (SL1), then after refeeding for 2 (SL2) and 42 d (SL3). The feeding regimen caused restricted animals at SL2 to have a decreased BW (P=0.039), with the refed animals undergoing compensatory growth by SL3 so BW was not different (P=0.829). At SL1 there was a trend for the R40 pigs to have less intramuscular fat than A40 (P=0.084). There was a trend for macroglycogen (MG; P=0.051) and a significant effect for proglycogen (ProG; P=0.014) to be greater at slaughter in R40 than A40, along with a greater postmortem decline in both MG (P=0.033) and ProG (P=0.022) over the first 2 h in R40, which was associated with the R40 having a lower pH at 24 h postmortem (P=0.043). After refeeding for 2 d (SL2), only MG of R40A2 was greater (P=0.030) than A42 and had a trend for a greater difference of decline at 24 h postmortem (P=0.091), which was associated with lower pH at 24 h (P=0.012). The data suggest that the concentrations of ProG are more labile and recovered to the concentrations of pigs fed for ad libitum intake sooner than MG. After full compensation in SL3, there was no difference for MG content (at 0 h, P=0.721; at 2 h, P=0.987; at 24 h, P=0.343), ProG content (at 0 h, P=0.879; at 2 h, P=0.946; at 24 h, P=0.459), and muscle pH (at 45 min, P=0.373; at 24 h, P=0.226). At all slaughter points, there was no difference in shear force (at SL1, P=0.101; at SL2, P=0.420; at SL3, P=0.167). There were no significant effects of the feeding regimen on micro- and milli-calpain large subunit gene expression (for micro-calpain at SL1, P=0.450; at SL2, P=0.171; at SL3, P=0.281; for milli-calpain at SL1, P=0.666; at SL2, P=0.123; at SL3, P=0.617) or the activity of the 2 proteolytic enzymes at any of the slaughter dates (for micro-calpain at SL1, P=0.238; at SL2, P =0.238; at SL3, P=0.222; for milli-calpain at SL1, P=0.296; at SL2, P=0.230; at SL3, P=0.615). In R40 there was a trend (P=0.070) for greater gene expression of caspase 3, whereas in R40A2 the increase was significant (P=0.009) relative to pigs consuming feed ad libitum. However, gene expression of the E3 ligase, MuRF1, at SL3 was less in R40A42 (P=0.019). Although compensatory growth does appear to influence the expression of various proteolytic systems, the changes do not appear to be associated with meat quality as measured by shear force.
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Affiliation(s)
- C Chaosap
- Division of Animal Sciences, The University of Nottingham, School of Biosciences, Sutton Bonington Campus, Loughborough, Leicestershire LE12 5RD United Kingdom.
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32
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Productive performance, carcass and meat quality of intact and castrated gilts slaughtered at 106 or 122 kg BW. Animal 2011; 5:1131-40. [DOI: 10.1017/s1751731111000061] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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33
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Slaughter value, meat quality, creatine kinase activity and cortisol levels in the blood serum of growing-finishing pigs slaughtered immediately after transport and after a rest period. Pol J Vet Sci 2011; 14:47-54. [DOI: 10.2478/v10181-011-0007-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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34
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Yue H, Zhang L, Wu S, Xu L, Zhang H, Qi G. Effects of transport stress on blood metabolism, glycolytic potential, and meat quality in meat-type yellow-feathered chickens. Poult Sci 2010; 89:413-9. [DOI: 10.3382/ps.2009-00550] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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35
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Zhang L, Yue H, Zhang H, Xu L, Wu S, Yan H, Gong Y, Qi G. Transport stress in broilers: I. Blood metabolism, glycolytic potential, and meat quality. Poult Sci 2009; 88:2033-41. [DOI: 10.3382/ps.2009-00128] [Citation(s) in RCA: 137] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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36
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Growth performance, carcass characteristics and meat quality of group-penned surgically castrated, immunocastrated (Improvac®) and entire male pigs and individually penned entire male pigs. Animal 2009; 3:1057-66. [DOI: 10.1017/s1751731109004418] [Citation(s) in RCA: 128] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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37
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Schubert-Schoppmeyer A, Fiedler I, Nürnberg G, Jonas L, Ender K, Maak S, Rehfeldt C. Simulation of giant fibre development in biopsy samples from pig longissimus muscle. Meat Sci 2008; 80:1297-303. [DOI: 10.1016/j.meatsci.2008.06.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2008] [Revised: 06/02/2008] [Accepted: 06/11/2008] [Indexed: 11/29/2022]
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38
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Bérard J, Kreuzer M, Bee G. Effect of litter size and birth weight on growth, carcass and pork quality, and their relationship to postmortem proteolysis1. J Anim Sci 2008; 86:2357-68. [DOI: 10.2527/jas.2008-0893] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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39
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Carr C, Newman D, Rentfrow G, Keisler D, Berg E. Effects of Slaughter Date, On-Farm Handling, Transport Stocking Density, and Time in Lairage on Digestive Tract Temperature, Serum Cortisol Concentrations, and Pork Lean Quality of Market Hogs1. ACTA ACUST UNITED AC 2008. [DOI: 10.1532/s1080-7446(15)30842-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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40
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Peinado J, Medel P, Fuentetaja A, Mateos GG. Influence of sex and castration of females on growth performance and carcass and meat quality of heavy pigs destined for the dry-cured industry1. J Anim Sci 2008; 86:1410-7. [DOI: 10.2527/jas.2006-807] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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41
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Apple JK. Effects of nutritional modifications on the water-holding capacity of fresh pork: a review. J Anim Breed Genet 2007; 124 Suppl 1:43-58. [DOI: 10.1111/j.1439-0388.2007.00686.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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42
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Mach N, Bach A, Velarde A, Devant M. Association between animal, transportation, slaughterhouse practices, and meat pH in beef. Meat Sci 2007; 78:232-8. [PMID: 22062275 DOI: 10.1016/j.meatsci.2007.06.021] [Citation(s) in RCA: 94] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2007] [Accepted: 06/18/2007] [Indexed: 11/15/2022]
Abstract
The objective of this study was to evaluate the influence of factors related to animal, farm, transportation, and animal handling at the slaughterhouse, as well as their interactions, on pH of beef meat. A total of 5494 cattle (343±45d of age) from 181 different Spanish farms were surveyed during three seasons (spring, summer, and winter) and a total of 25 pre-slaughter variables were recorded. Meat pH was measured at the Longissimus dorsi 24h post-mortem (pH(24)). After a variable selection procedure, a mixed-effects logistic regression model was conducted with 5 variables (1 random and 4 fixed) to identify the main factors, and their interactions, affecting meat pH(24). Average incidences of meat pH(24) greater than 5.8 and 6.0 were 13.89% and 4.02%, respectively. The variability of meat pH(24) explained with studied factors and their interactions was only 4.9%, a value too low to allow making technical decisions to improve meat pH(24) in the Spanish market considering the variables studied.
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Affiliation(s)
- N Mach
- Animal Nutrition, Management, and Welfare Group, IRTA-Torre Marimon (Institut de Recerca i Tecnologia Agroalimentàries), Barcelona 08140, Spain
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43
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Bee G, Anderson AL, Lonergan SM, Huff-Lonergan E. Rate and extent of pH decline affect proteolysis of cytoskeletal proteins and water-holding capacity in pork. Meat Sci 2007; 76:359-65. [DOI: 10.1016/j.meatsci.2006.12.004] [Citation(s) in RCA: 97] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2006] [Revised: 12/05/2006] [Accepted: 12/07/2006] [Indexed: 10/23/2022]
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