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Prache S, Rey-Cadilhac L, Prunier A. Change in fat skatole and indole content in lambs switched from a concentrate-based diet indoors to alfalfa grazing for various durations before slaughter. Meat Sci 2023; 204:109272. [PMID: 37413886 DOI: 10.1016/j.meatsci.2023.109272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 05/19/2023] [Accepted: 06/28/2023] [Indexed: 07/08/2023]
Abstract
Meat from lambs fattened on alfalfa is at risk of excessive pastoral flavours due to high levels of in-fat volatile indolic compounds (especially, skatole). Skatole has also been identified as a potential marker of interest for authenticating pasture-fed lamb meat. Here, we investigated the change in skatole and indole concentrations in kidney fat from lambs switched from an indoor-fed concentrate based diet to outdoor alfalfa grazing for various durations (0, 21, 42, 63 days) before slaughter. The study used a total of 219 lambs over 3 consecutive years. Kidney-fat skatole and indole concentrations increased from as early as 21 days on alfalfa, and then reached a plateau. Similarly, the proportion of lambs that had a kidney fat-skatole concentration above 0.15 μg/g liquid fat, a value that has been established as a sensory rejection threshold for pork, increased significantly from as early as 21 days on alfalfa and then reached a plateau. This value was reached or exceeded in a significant proportion of lambs fattened on alfalfa pastures (45.1%). However, skatole was not detected in kidney fat from 20 out of 164 alfalfa-fattened lambs (i.e., 12.2%) but was detected in 15 out of 55 concentrate-fed lambs (i.e., 27.3%). We thus conclude that while skatole content in kidney fat can inform on dietary changes made shortly before slaughter, it does not have the discrimination power needed to reliably authenticate pasture-fed lamb meat, let alone duration of finishing on pasture.
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Affiliation(s)
- Sophie Prache
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, F-63122 St-Genès-Champanelle, France.
| | - Lucille Rey-Cadilhac
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, F-63122 St-Genès-Champanelle, France
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2
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Prache S, Vazeille K, Note P, Prunier A. Combining sheep and beef cattle in a pasture-based system minorly influenced muscle and fat colour and dorsal fat firmness but increased fat skatole content in lambs. Animal 2023; 17:100979. [PMID: 37757526 DOI: 10.1016/j.animal.2023.100979] [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: 04/04/2023] [Revised: 08/21/2023] [Accepted: 08/29/2023] [Indexed: 09/29/2023] Open
Abstract
A recent long-term system-level experiment, using grassland-based organic systems established as separate farmlets, showed that combining sheep and beef cattle within a mixed (MIX) system promoted self-sufficient production of grass-fed meat and improved economic and environmental performance in the sheep enterprise compared to a sheep-only (SH) system. In the present study, we used all male lambs produced over the first year in this experiment to evaluate the effect of this farming practice on some lamb carcass and meat sensory quality traits. Lambing took place at the end of February and lambs were pasture-fed from 1 month of age on average until slaughter, unless they were not ready for slaughter at 3-4 weeks before the start of the mating period in October, in which case they were finished indoors on a concentrate-based diet. All MIX lambs (n = 33) were finished at pasture. One SH lamb (out of a total of 85) had to be finished indoors with a concentrate-based diet. MIX lambs had a higher growth rate than SH lambs (P < 0.001), resulting in a lower lamb age at slaughter in MIX than in SH (150 vs 173 days, P < 0.001). Carcass weight and degree of fatness, kidney fat weight and dorsal fat thickness did not differ between systems. Kidney fat skatole concentration was higher in MIX than in SH (median value reaching 0.15 µg/g liquid fat and 0.11 µg/g liquid fat in MIX and SH, respectively, P < 0.05). This was most likely due to MIX lambs being slaughtered at a younger age and therefore eating younger grass. There were minor differences between MIX and SH lambs in dorsal fat firmness and in colour coordinates of longissimus thoracis et lumborum muscle. We conclude that while combining sheep and beef cattle within a mixed system offers advantages in terms of self-sufficient production of grass-fed meat and system economic and environmental performance, it could come at a cost to lamb flavour.
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Affiliation(s)
- Sophie Prache
- Université Clermont Auvergne, INRAE, Vetagro Sup, UMR Herbivores, 63122 Saint-Genès-Champanelle, France.
| | - Karine Vazeille
- Université Clermont Auvergne, INRAE, HERBIPOLE, 63122 Saint-Genès-Champanelle, France
| | - Priscilla Note
- Université Clermont Auvergne, INRAE, HERBIPOLE, 63122 Saint-Genès-Champanelle, France
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3
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Etaio I, Bravo‐Lamas L, Pérez‐Elortondo FJ, Barron LJR, Aldai N. Suckling or non-suckling? Sensory characterization of commercialized lamb meat according to feeding. Food Sci Nutr 2023; 11:6544-6559. [PMID: 37823159 PMCID: PMC10563712 DOI: 10.1002/fsn3.3604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 07/21/2023] [Accepted: 07/25/2023] [Indexed: 10/13/2023] Open
Abstract
Consumption of meat from suckling lambs is typical in some regions. However, sensory differences between meat from suckling and non-suckling lambs are barely described in previous studies. The objectives of the present study were (a) to develop a method to describe the sensory characteristics of lamb meat, including the development of sensory references for odor, flavor, and texture attributes; and (b) to study the sensory differences between lamb meat commercialized as "suckling lamb" and that commercialized without this designation. Twenty-three sensory attributes were selected, and their corresponding sensory references were developed. A detailed procedure to evaluate the samples was also set up. This methodology was used to characterize samples (n = 48) from a survey of lamb meat from different types of stores (n = 23). Half of the samples were commercialized as sucking lamb and the other half (older lambs) without this indication. Samples were bought in two seasons (May and December) to consider possible seasonal effects. Samples were evaluated in triplicate by 12 trained assessors. Data were analyzed by ANOVA (p ≤ .05). Apart from how long juiciness was maintained ("maintained juiciness"), all the selected attributes were appropriate to discriminate between samples. Lamb meat sold as "suckling" did not differ from the other lamb samples in odor and flavor, but there were clear differences in texture attributes: meat sold as suckling lamb was tenderer and juicier, with higher crumbliness, and with lower fibrousness, chewiness, and residue than non-suckling lamb meat. Several sensory characteristics, mainly related to odor and flavor, varied according to the season.
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Affiliation(s)
- Iñaki Etaio
- Laboratorio de Análisis Sensorial Euskal Herriko Unibertsitatea (LASEHU)Vitoria‐GasteizSpain
- Lactiker Research Group, Department of Pharmacy & Food SciencesUniversity of the Basque Country (UPV/EHU), Centro de Investigación Lascaray IkerguneaVitoria‐GasteizSpain
| | - Leire Bravo‐Lamas
- Lactiker Research Group, Department of Pharmacy & Food SciencesUniversity of the Basque Country (UPV/EHU), Centro de Investigación Lascaray IkerguneaVitoria‐GasteizSpain
| | - Francisco José Pérez‐Elortondo
- Laboratorio de Análisis Sensorial Euskal Herriko Unibertsitatea (LASEHU)Vitoria‐GasteizSpain
- Lactiker Research Group, Department of Pharmacy & Food SciencesUniversity of the Basque Country (UPV/EHU), Centro de Investigación Lascaray IkerguneaVitoria‐GasteizSpain
| | - Luis Javier R. Barron
- Lactiker Research Group, Department of Pharmacy & Food SciencesUniversity of the Basque Country (UPV/EHU), Centro de Investigación Lascaray IkerguneaVitoria‐GasteizSpain
| | - Noelia Aldai
- Lactiker Research Group, Department of Pharmacy & Food SciencesUniversity of the Basque Country (UPV/EHU), Centro de Investigación Lascaray IkerguneaVitoria‐GasteizSpain
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4
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Wang J, Lu R, Li Y, Lu J, Liang Q, Zheng Z, Huang H, Deng F, Huang H, Jiang H, Hu J, Feng M, Xiao P, Yang X, Liang X, Zeng J. Dietary supplementation with jasmine flower residue improves meat quality and flavor of goat. Front Nutr 2023; 10:1145841. [PMID: 37063323 PMCID: PMC10100067 DOI: 10.3389/fnut.2023.1145841] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 03/10/2023] [Indexed: 04/18/2023] Open
Abstract
Jasmine flower residue (JFR) is a by-product retained in the production process of jasmine tea and can be used as an unconventional feed due to its rich nutrient value. This study aimed to evaluate the effects of the addition of JFR to the diet of goats on their meat quality and flavor. Twenty-four castrated Nubian male goats were randomly divided into two groups and fed a mixed diet containing 10% JFR (JFR, n = 12) or a conventional diet (CON, n = 12) for 45 days. Meat quality and flavor were measured at the end of the treatment. The addition of JFR to the diet could reduce the shear force of the longissimus dorsi muscle, as well as, the cross-sectional area and diameter of muscle fibers, indicating that the addition of JFR improved meat quality. JFR also increased the content of glutamic acid and ω-3 polyunsaturated fatty acid (C18:3n3 and C20:5N3) and reduced the content of C24:1 and saturated fatty acid (C20:0 and C22:0). In addition, the use of JFR increased the content of acetaldehyde and hexanal in the meat. Furthermore, JFR introduced new volatile components in the meat. The umami, saltiness, and richness of the meat also improved. In conclusion, the addition of jasmine flower residue to the diet can improve the meat quality and flavor of goat.
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Affiliation(s)
- Jinxing Wang
- Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, Nanning, Guangxi, China
| | - Renhong Lu
- Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, Nanning, Guangxi, China
| | - Yehong Li
- Institute for New Rural Development, Guangxi University, Nanning, China
| | - Junzhi Lu
- Institute for New Rural Development, Guangxi University, Nanning, China
| | - Qiong Liang
- Institute for New Rural Development, Guangxi University, Nanning, China
| | - Zihua Zheng
- Institute for New Rural Development, Guangxi University, Nanning, China
| | - Heng Huang
- Institute for New Rural Development, Guangxi University, Nanning, China
| | - Fuchang Deng
- Guangxi Nongken Yongxin Animal Husbandry Group Nasuo Animal Husbandry Co., Ltd., Nanning, China
| | - Huali Huang
- Institute for New Rural Development, Guangxi University, Nanning, China
| | - Huimin Jiang
- Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, Nanning, Guangxi, China
| | - Junjie Hu
- Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, Nanning, Guangxi, China
| | - Ming Feng
- Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, Nanning, Guangxi, China
| | - Peng Xiao
- Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, Nanning, Guangxi, China
| | - Xiaogan Yang
- Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, Nanning, Guangxi, China
| | - Xingwei Liang
- Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, Nanning, Guangxi, China
| | - Jun Zeng
- Institute for New Rural Development, Guangxi University, Nanning, China
- *Correspondence: Jun Zeng,
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Yang Z, Liu C, Dou L, Chen X, Zhao L, Su L, Jin Y. Effects of Feeding Regimes and Postmortem Aging on Meat Quality, Fatty Acid Composition, and Volatile Flavor of Longissimus Thoracis Muscle in Sunit Sheep. Animals (Basel) 2022; 12:ani12223081. [PMID: 36428309 PMCID: PMC9686687 DOI: 10.3390/ani12223081] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 11/03/2022] [Accepted: 11/08/2022] [Indexed: 11/11/2022] Open
Abstract
The effects of different feeding regimes on antioxidant activity, meat quality, fatty acid composition, lipid oxidation, and volatile matter production in the longissimus thoracis (LT) of Sunit sheep at 0, 24, 48, 72, and 96 h postmortem were investigated. The results showed that the activity of antioxidant enzymes, tenderness, water retention, and percentage of unsaturated fatty acids were significantly higher in the pasture-fed sheep (PF) than in the concentrate-fed sheep (CF) (p < 0.05). During postmortem aging, antioxidant activity, water retention, and the proportion of unsaturated fatty acids decreased in the PF and CF (p < 0.05), while malondialdehyde (MDA) content, the proportion of saturated fatty acids, and the content of flavor substances resulting from fat oxidation increased. After 24 h of LT muscle aging, the pH and shear force of the meat started to increase and the color stabilized. The differences between shear force values and lipid volatile flavor substance content of sheep meat under different feeding regimes disappeared with increasing aging time. PF had better oxidative stability and fatty acid composition. Postmortem aging changed the oxidative stability of sheep meat, thus affecting meat quality and fatty acid composition and consequently meat flavor composition, while aging also eliminated to some extent the differences caused by feeding regimes.
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6
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Impact of cooking on the content of nutritionally important fatty acids in muscle from lambs raised to have divergent intramuscular fatty acid compositions. Small Rumin Res 2022. [DOI: 10.1016/j.smallrumres.2022.106802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Pavan E, Subbaraj AK, Eyres GT, Silcock P, Realini CE. Association of metabolomic and lipidomic data with Chinese and New Zealand consumer clusters showing preferential likings for lamb meat from three production systems. Food Res Int 2022; 158:111504. [DOI: 10.1016/j.foodres.2022.111504] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 05/25/2022] [Accepted: 06/10/2022] [Indexed: 11/04/2022]
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8
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Is a short concentrate-finishing period in lambs raised on alfalfa pasture effective at reducing fat indoles contents and lightening meat colour? Animal 2022; 16:100610. [DOI: 10.1016/j.animal.2022.100610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 07/07/2022] [Accepted: 07/11/2022] [Indexed: 11/17/2022] Open
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Avilés-Ramírez C, Vioque Amor M, Polvillo Polo O, Horcada A, Gómez-Cortés P, de la Fuente MÁ, Núñez-Sánchez N, Martínez Marín AL. Influence of Dietary Algae Meal on Lipid Oxidation and Volatile Profile of Meat from Lambs with Competent Reticular Groove Reflex. Foods 2022; 11:foods11152193. [PMID: 35892778 PMCID: PMC9331320 DOI: 10.3390/foods11152193] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 07/14/2022] [Accepted: 07/18/2022] [Indexed: 02/04/2023] Open
Abstract
Dietary lipid sources influence intramuscular fatty acid composition, which in turn may affect the volatile profile of meat. The aim of this work was to investigate the effects of marine algae supplementation (Aurantiochytrium limacinum) on volatile compounds of cooked lamb meat. Forty-eight lambs with 42 days of age were divided into three groups: lambs fed a conventional diet without algae meal supplementation (NOALG), lambs with competent reticular groove reflex (RGR) fed the same diet supplemented with 2.5% marine algae meal mixed in the concentrate (ALGCON), and lambs with competent RGR, receiving the same diet and fed with 2.5% marine algae meal in a milk replacer to bypass the rumen (ALGMILK). Lipid and protein oxidation in raw meat was assessed and volatile compounds in grilled meat were determined. The highest and lowest lipid oxidations were observed in the ALGMILK and NOALG groups, respectively. Protein oxidation was unaffected. Out of 56 identified compounds, 12 volatiles significantly increased in both algae groups and 6 of them exclusively in the ALGCON treatment. Algae meal supplementation and its form of administration, either protected or not from rumen degradation, are important factors to consider in lipid oxidation and the aromatic profile of lamb meat.
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Affiliation(s)
- Carmen Avilés-Ramírez
- Departamento de Bromatología y Tecnología de los Alimentos, Universidad de Córdoba, Ctra. Madrid-Cádiz km 396, 14071 Córdoba, Spain;
- Correspondence: ; Tel.: +34-957-218-526
| | - Montserrat Vioque Amor
- Departamento de Bromatología y Tecnología de los Alimentos, Universidad de Córdoba, Ctra. Madrid-Cádiz km 396, 14071 Córdoba, Spain;
| | - Oliva Polvillo Polo
- Centro de Investigación, Tecnología e Innovación, Universidad de Sevilla, Avda. Reina Mercedes 4-B, 41012 Sevilla, Spain;
| | - Alberto Horcada
- Departamento de Agronomía, Escuela Técnica Superior de Ingeniería Agronómica, Universidad de Sevilla, 41013 Sevilla, Spain;
| | - Pilar Gómez-Cortés
- Instituto de Investigación en Ciencias de la Alimentación (CIAL, CSIC-UAM), Nicolás Cabrera, 9, 28049 Madrid, Spain; (P.G.-C.); (M.Á.d.l.F.)
| | - Miguel Ángel de la Fuente
- Instituto de Investigación en Ciencias de la Alimentación (CIAL, CSIC-UAM), Nicolás Cabrera, 9, 28049 Madrid, Spain; (P.G.-C.); (M.Á.d.l.F.)
| | - Nieves Núñez-Sánchez
- Departamento de Producción Animal, Universidad de Córdoba, Ctra. Madrid-Cádiz km 396, 14071 Córdoba, Spain; (N.N.-S.); (A.L.M.M.)
| | - Andrés Luis Martínez Marín
- Departamento de Producción Animal, Universidad de Córdoba, Ctra. Madrid-Cádiz km 396, 14071 Córdoba, Spain; (N.N.-S.); (A.L.M.M.)
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10
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Moran L, Vivanco C, Lorenzo JM, Barron LJR, Aldai N. Characterization of volatile compounds of cooked wild Iberian red deer meat extracted with solid phase microextraction and analysed by capillary gas chromatography - mass spectrometry. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113472] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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11
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Quadros DG, Whitney TR, Kerth CR. Replacing cottonseed meal and sorghum with dried distillers` grains with solubles enhances the growth performance, carcass traits, and meat quality of feedlot lambs. Transl Anim Sci 2022; 6:txac040. [PMID: 35669947 PMCID: PMC9159527 DOI: 10.1093/tas/txac040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 03/30/2022] [Indexed: 11/14/2022] Open
Abstract
We evaluated the impacts of substituting cottonseed meal (CSM) and sorghum grain (SG) with dried distillers` grains with solubles (DDGS) in lamb feedlot diets on the dry matter intake (DMI), the growth performance, blood serum analysis, feces phosphorus (P) and nitrogen (N), wool production and quality, carcass traits, adipose tissue fatty acid (FA) profiles, and sensory panel tests. For 72 d, Rambouillet wether lambs (n = 44, initial body weight, BW = 28.8 ± 3.3 kg) were individually fed ad libitum pelleted diets containing DDGS that replaced 0% (0DDGS), 25% (25DDGS), 50% (50DDGS), or 75% (75DDGS) of the CSM and SG in a completely randomized design trial. Linear and quadratic effects of DDGS levels on the response variables were analyzed. Treatment × day interactions (P < 0.001) were observed for BW and DMI. As the DDGS level was increased, DMI (from days 21 to 70), lamb BW (from days 56 to 70), average daily gain, blood urea nitrogen and P, and fecal P linearly increased (P ≤ 0.05). Fecal N quadratically increased (P = 0.01), but no effects were found for gain:feed, blood insulin-like growth factor-1, or calcium. No differences in wool production or most of the wool quality parameters were detected. Adipose tissue stearic acid linearly increased (P = 0.02), linoleic acid quadratically increased (P = 0.01), and oleic acid tended to quadratically decrease (P = 0.08) as the DDGS increased in the diets. Increasing the DDGS level in the diets quadratically increased the hot carcass weight (P = 0.02), backfat thickness (P = 0.04), and body wall thickness (P < 0.001) while having no impact on the longissimus muscle area. As the DDGS increased in the diet, juiciness, tenderness, and overall acceptability linearly increased (P ≤ 0.05), while having no effect on the cook-loss, flavor intensity, or off-flavor detectability. Replacing 50% of CSM and SG with DDGS improved growth performance and enhanced the carcass and meat quality.
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Affiliation(s)
- Danilo G Quadros
- Texas A&M AgriLife Research, 7887 U.S. Hwy 87 N, San Angelo, TX, USA
| | - Travis R Whitney
- Texas A&M AgriLife Research, 7887 U.S. Hwy 87 N, San Angelo, TX, USA
| | - Chris R Kerth
- Department of Animal Science, Texas A&M University, College Station, TX, USA
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12
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Bertotto C, Bilck AP, Yamashita F, Anjos O, Bakar Siddique MA, Harrison SM, Brunton NP, Carpes ST. Development of a biodegradable plastic film extruded with the addition of a Brazilian propolis by-product. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113124] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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13
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Yang Y, Li J, Jia X, Zhao Q, Ma Q, Yu Y, Tang C, Zhang J. Characterization of the Flavor Precursors and Flavor Fingerprints in Grazing Lambs by Foodomics. Foods 2022; 11:foods11020191. [PMID: 35053924 PMCID: PMC8774584 DOI: 10.3390/foods11020191] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 12/31/2021] [Accepted: 01/04/2022] [Indexed: 02/04/2023] Open
Abstract
Tan sheep are greatly preferred by consumers in China because of their nutritional value and unique flavor. However, the meat quality of Tan sheep has decreased due to the change in feeding systems from grazing to indoor. Studies investigating the mechanisms for the decrease in meat quality are limited. A total of 28 Tan sheep were randomly allocated to two treatments, receiving a concentrated diet, or pasture. Flavor precursors and volatile compounds were analyzed with foodomics. E-nose and E-tongue analyses suggested that the aroma and taste profiles differed between the feeding systems. The grazing lambs had higher levels of linoleic acid and n-3 polyunsaturated fatty acids (p < 0.01). Metabolomics indicated that 25 hydrophilic metabolites active in glycolipid and amino acid metabolisms were changed by the feeding system. Among the 57 volatile compounds identified, methional, γ-butyrolactone, benzaldehyde, and ethyl acetate were at concentrations significantly higher in the grazing lambs than the indoor-fed lambs (p < 0.01). These results reveal key changes in flavor precursors and flavor profiles affected by the feeding system, which may provide an initial view of the reason for consumer preference for the grazing Tan sheep.
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Affiliation(s)
- Yuanyuan Yang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.Y.); (J.L.); (X.J.); (Q.Z.); (Y.Y.); (C.T.)
- Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Jing Li
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.Y.); (J.L.); (X.J.); (Q.Z.); (Y.Y.); (C.T.)
- Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Xueting Jia
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.Y.); (J.L.); (X.J.); (Q.Z.); (Y.Y.); (C.T.)
- Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Qingyu Zhao
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.Y.); (J.L.); (X.J.); (Q.Z.); (Y.Y.); (C.T.)
- Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Qing Ma
- Institute of Animal Science, Ningxia Academy of Agricultural and Forestry Sciences, Yinchuan 750002, China;
| | - Yanan Yu
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.Y.); (J.L.); (X.J.); (Q.Z.); (Y.Y.); (C.T.)
- Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Chaohua Tang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.Y.); (J.L.); (X.J.); (Q.Z.); (Y.Y.); (C.T.)
- Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Junmin Zhang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.Y.); (J.L.); (X.J.); (Q.Z.); (Y.Y.); (C.T.)
- Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China
- Correspondence: ; Tel.: +86-10-6281-5852
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14
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Álvarez C, Koolman L, Whelan M, Moloney A. Effect of Pre-Slaughter Practises and Early Post-Mortem Interventions on Sheep Meat Tenderness and Its Impact on Microbial Status. Foods 2022; 11:foods11020181. [PMID: 35053913 PMCID: PMC8775201 DOI: 10.3390/foods11020181] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 12/15/2021] [Accepted: 12/20/2021] [Indexed: 01/14/2023] Open
Abstract
Tenderness, together with flavour, is the main quality trait that defines consumer acceptance of sheep meat. The factors affecting tenderness can be grouped as those influenced before slaughter, in the early post-mortem intervention and, finally, during the aging period. These factors have been extensively studied with respect to tenderness, but the impact of early post-mortem interventions and subsequent aging on the microbial quality of the final products has not been broadly reviewed to date. In this review, the authors summarize the most recent knowledge on lamb meat tenderness management and how such practices may impact the final meat quality, especially its microbial status. The impacts of pre-slaughter factors (age, sex, diet, genotype and transport) and post-mortem interventions (chilling regime, electrical stimulation, or hanging method), are described and comprehensively discussed.
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Affiliation(s)
- Carlos Álvarez
- Teagasc Food Research Centre, Department of Food Quality and Sensory Science, D15 DY05 Dublin, Ireland
- Correspondence:
| | - Leonard Koolman
- Teagasc Food Research Centre, Department of Food Safety, D15 DY05 Dublin, Ireland;
- UCD-Centre of Food Safety, School of Public Health, Physiotherapy & Sports Science, University College Dublin, D04 V1W8 Dublin, Ireland
| | - Michael Whelan
- Teagasc Food Research Centre, Meat Technology Ireland, D15 KN3K Dublin, Ireland;
| | - Aidan Moloney
- Teagasc, Animal & Grassland Research and Innovation Centre, Grange, Dunsany, C15 PW93 Meath, Ireland;
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15
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Zhao L, Zhou L, Hao X, Wang L, Han F, Liu L, Duan X, Guo F, He J, Liu N. Identification and Characterization of Circular RNAs in Association With the Deposition of Intramuscular Fat in Aohan Fine-Wool Sheep. Front Genet 2021; 12:759747. [PMID: 34938314 PMCID: PMC8685527 DOI: 10.3389/fgene.2021.759747] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 11/02/2021] [Indexed: 01/20/2023] Open
Abstract
Aohan fine-wool sheep (AFWS) is a high-quality fine-wool sheep breed that supplies wool and meat. Research is needed on the molecular mechanism behind intramuscular fat (IMF) deposition that greatly improves mutton quality. The widely expressed non-coding RNA is physiologically used in roles such as competitive endogenous RNA (ceRNA) that includes circular RNAs (circRNAs). Although circRNAs were studied in many fields, little research was devoted to IMF in sheep. We used the longissimus dorsi muscle of 2 and 12-month-old AWFS as research material to identify circRNAs related to IMF deposition in these sheep by RNA-seq screening for differentially expressed circRNAs in the two age groups. A total of 11,565 candidate circRNAs were identified, of which the 104 differentially expressed circRNAs in the two age groups were analyzed. Enrichment analysis was performed using Gene Ontology and the Kyoto Encyclopedia of Genes and Genomes. The enriched pathways included lipid transport (GO:0006869), negative regulation of canonical Wnt signaling pathway (GO:0090090), fat digestion and absorption (ko04975), and sphingolipid metabolism (ko00600). The differentially expressed circRNAs included ciRNA455, circRNA9086, circRNA7445, circRNA4557, and others. The source genes involved in these pathways might regulate IMF deposition. We used the TargetScan and miRanda software for interaction analysis, and a network diagram of circRNA-miRNA interactions was created. CircRNA455-miR-127, circRNA455-miR-29a, circRNA455-miR-103, circRNA4557-mir149-5p, and circRNA2440-mir-23a might be involved in the IMF deposition process. The targeting relationship of circRNA4557-miR-149-5p was verified by a dual-luciferase reporter assay. The RT-qPCR results of seven randomly selected circRNAs were consistent with the sequencing results. This study provides additional information on circRNA regulation of IMF deposition in AFWS and is a useful resource for future research on this sheep breed.
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Affiliation(s)
- Le Zhao
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, China
| | - Lisheng Zhou
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, China
| | - Xiaojing Hao
- Qingdao Animal Husbandry and Veterinary Research Institute, Qingdao, China
| | - Lei Wang
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, China
| | - Fuhui Han
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, China
| | - Lirong Liu
- China Animal Health and Epidemiology Center, Qingdao, China
| | - Xinming Duan
- Nongfayuan Zhejiang Agricultural Development Co. Ltd., Huzhou, China
| | - Feng Guo
- Tongliao Animal Agriculture Development Service Center, Tongliao, China
| | - Jianning He
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, China
| | - Nan Liu
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, China
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16
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Review: Improving the nutritional, sensory and market value of meat products from sheep and cattle. Animal 2021; 15 Suppl 1:100356. [PMID: 34600858 DOI: 10.1016/j.animal.2021.100356] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 08/02/2021] [Accepted: 08/13/2021] [Indexed: 12/13/2022] Open
Abstract
This paper focuses on improving the sensory, health attributes and meat yield of beef and lamb meats. Value for meat is defined as the weight of meat × price/kg received with price linked to eating quality. To maximise value across the supply chain, accurate carcass grading systems for eating quality and yield are paramount. Grading data can then be used to target consumers' needs at given price points and then to tailor appropriate production and genetic directions. Both the grading methodologies and key phenotypes are complex and still under intensive research with international collaboration to maximise opportunities. In addition, there is value in promoting the health aspects of red meats served as whole trimmed meats. Typically, the total fat content is relatively low (less than 5%) and for forage systems, they deliver a very significant content of long-chain n-3 fatty acids. Further research is needed to clarify the healthiness or otherwise of ground beef served as burgers given the fat content is typically 20% or more. It is important to continue to improve the feedback to producers regarding the quantity and quality of the products they produce to target new value opportunities in a transparent and quantitative manner.
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17
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Prache S, Schreurs N, Guillier L. Review: Factors affecting sheep carcass and meat quality attributes. Animal 2021; 16 Suppl 1:100330. [PMID: 34400114 DOI: 10.1016/j.animal.2021.100330] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 05/26/2021] [Accepted: 05/28/2021] [Indexed: 12/17/2022] Open
Abstract
Sheep meat comes from a wide variety of farming systems utilising outdoor extensive to indoor intensive with animals of various ages at slaughter. In Europe, slaughter may occur from 4 weeks of age in suckling light lambs to adult ages. More than any other animal species used for meat production, there are strong country-specific preferences for sheep meat quality linked to production system characteristics such as dairy or grassland-based systems. This article critically reviews the current state of knowledge on factors affecting sheep carcass and meat quality. Quality has been broken down into six core attributes: commercial, organoleptic, nutritional, technological, safety and image, the latter covering aspects of ethics, culture and environment associated with the way the meat is produced and its origin, which are particularly valued in the many quality labels in Europe. The quality of meat is built but can also deteriorate along the continuum from the conception of the animal to the consumer. Our review pinpoints critical periods, such as the gestation and the preslaughter and slaughter periods, and key factors, such as the animal diet, via its direct effect on the fatty acid profile, the antioxidant and volatile content, and indirect effects mediated via the age of the animal. It also pinpoints methodological difficulties in predicting organoleptic attributes, particularly odour and flavour. Potential antagonisms between different dimensions of quality are highlighted. For example, pasture-feeding has positive effects on the image and nutritional attributes (through its effect on the fatty acid profile of meat lipids), but it increases the risk of off-odours and off-flavours for sensitive consumersand the variability in meat quality linked to variability of animal age at slaughter. The orientation towards more agro-ecological, low-input farming systems may therefore present benefits for the image and nutritional properties of the meat, but also risks for the commercial (insufficient carcass fatness, feed deficiencies at key periods of the production cycle, irregularity in supply), organoleptic (stronger flavour and darker colour of the meat) and variability of sheep carcass and meat quality. Furthermore, the genetic selection for lean meat yield has been effective in producing carcasses that yield more meat, but at a penalty to the intramuscular fat content and eating quality of the meat, and making it more difficult to finish lambs on grass. Various tools to assess and predict quality are in development to better consider the various dimensions of quality in consumer information, payment to farmers and genetic selection.
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Affiliation(s)
- S Prache
- Université d'Auvergne, INRA, Vetagro Sup, UMR Herbivores, 63122 St-Genès-Champanelle, France.
| | - N Schreurs
- Animal Science, School of Agriculture and Environment, PN433, Massey University, Private Bag 11222, Palmerston North 4442, New Zealand
| | - L Guillier
- Université Paris Est, Anses, Risk Assessment Department, 94701 Maisons-Alfort, France
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18
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Influence of feeding system on Longissimus thoracis et lumborum volatile compounds of an Iberian local lamb breed. Small Rumin Res 2021. [DOI: 10.1016/j.smallrumres.2021.106417] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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19
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Bittante G, Pellattiero E, Cecchinato A, Tagliapietra F, Sturaro E, Ramanzin M, Pazzola M, Vacca GM, Schiavon S. Performance, carcass conformation and meat quality of suckling, weaned and heavy lambs, and culled fattened ewes of autochthonous alpine sheep breeds. ITALIAN JOURNAL OF ANIMAL SCIENCE 2021. [DOI: 10.1080/1828051x.2021.1920484] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Giovanni Bittante
- Dipartimento di Agronomia, Animali, Alimenti, Risorse naturali e Ambiente (DAFNAE), Università di Padova (Padova), Legnaro, Italy
| | - Erika Pellattiero
- Dipartimento di Agronomia, Animali, Alimenti, Risorse naturali e Ambiente (DAFNAE), Università di Padova (Padova), Legnaro, Italy
| | - Alessio Cecchinato
- Dipartimento di Agronomia, Animali, Alimenti, Risorse naturali e Ambiente (DAFNAE), Università di Padova (Padova), Legnaro, Italy
| | - Franco Tagliapietra
- Dipartimento di Agronomia, Animali, Alimenti, Risorse naturali e Ambiente (DAFNAE), Università di Padova (Padova), Legnaro, Italy
| | - Enrico Sturaro
- Dipartimento di Agronomia, Animali, Alimenti, Risorse naturali e Ambiente (DAFNAE), Università di Padova (Padova), Legnaro, Italy
| | - Maurizio Ramanzin
- Dipartimento di Agronomia, Animali, Alimenti, Risorse naturali e Ambiente (DAFNAE), Università di Padova (Padova), Legnaro, Italy
| | - Michele Pazzola
- Dipartimento di Medicina Veterinaria, Università degli Studi di Sassari, Sassari, Italy
| | | | - Stefano Schiavon
- Dipartimento di Agronomia, Animali, Alimenti, Risorse naturali e Ambiente (DAFNAE), Università di Padova (Padova), Legnaro, Italy
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20
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Watkins PJ, Jaborek JR, Teng F, Day L, Castada HZ, Baringer S, Wick M. Branched chain fatty acids in the flavour of sheep and goat milk and meat: A review. Small Rumin Res 2021. [DOI: 10.1016/j.smallrumres.2021.106398] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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21
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Influence of the Production System (Intensive vs. Extensive) at Farm Level on Proximate Composition and Volatile Compounds of Portuguese Lamb Meat. Foods 2021; 10:foods10071450. [PMID: 34206561 PMCID: PMC8307059 DOI: 10.3390/foods10071450] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 06/07/2021] [Accepted: 06/18/2021] [Indexed: 11/17/2022] Open
Abstract
Today’s society demands healthy meat with a special emphasis on integrated animal husbandry combined with the concern for animal welfare. In this sense, the raising of lambs in an extensive system has been one of the most common practices, which results in meats with high nutritional value. However, both the production system and the diet play a fundamental role in the chemical composition of the meat, which has a direct impact on the content of volatile compounds. Thus, the aim of this study was to determine the effect of two production systems (intensive and extensive) on the chemical composition and volatile profile of lamb meat. Twenty-eight lambs of the Bordaleira-de-Entre-Douro-e-Minho (BEDM) sheep breed were raised for meat production under the intensive or extensive system and were fed with concentrate and pasture, respectively. All animals were carried out in the muscle longissimus thoracis et lumborum. Results evidenced that all the composition parameters were affected by the production system. Extensively-reared lambs produced meat with the highest fat and protein contents, while these animals had the lowest percentages of moisture and ash. Similarly, the total content of volatile compounds was affected (p < 0.05) by the production system and were higher in the meat of lambs reared extensively. Furthermore, the content of total acids, alcohols, aldehydes, esters, ethers, furans and sulfur compounds as well as most of the individual compounds were also affected (p < 0.05) by the production system, whereas total hydrocarbons and ketones were not affected (p > 0.05). As a general conclusion, the production system had very high influence not only in proximate composition but also in the volatile compounds.
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22
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Pavan E, Ye Y, Eyres GT, Guerrero L, G. Reis M, Silcock P, Johnson PL, Realini CE. Relationships among Consumer Liking, Lipid and Volatile Compounds from New Zealand Commercial Lamb Loins. Foods 2021; 10:foods10051143. [PMID: 34065362 PMCID: PMC8161400 DOI: 10.3390/foods10051143] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 05/15/2021] [Accepted: 05/18/2021] [Indexed: 11/23/2022] Open
Abstract
Loin sections (m. Longissimus lumborum) were collected at slaughter from forty-eight lamb carcasses to evaluate consumer-liking scores of six types of typical New Zealand commercial lamb and to understand the possible underlying reasons for those ratings. A consumer panel (n = 160) evaluated tenderness, juiciness, flavor liking, and overall liking of the different types of lamb loins. Consumer scores differed among the types of lamb meat for all the evaluated attributes (p < 0.05). Further segmentation based on overall liking scores showed two consumer clusters with distinct ratings. Correlation and external preference map analyses indicated that one consumer cluster (n = 75) liked lamb types that had lower total lipid content, a lower proportion of branched-chain fatty acids, oleic and heptadecanoic acids; and a higher proportion of polyunsaturated fatty acids and volatile compounds (green and fruity descriptors). Consumer liking of the other segment (n = 85) was less influenced by fatty acids and volatiles, except hexanoic, heptanoic and octanoic acids (rancid, fatty, and sweaty descriptors). Thus, the fatty acid profile and the volatile compounds derived from their oxidation upon cooking seem to be a stronger driver of consumer liking of lamb for some consumers than others.
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Affiliation(s)
- Enrique Pavan
- AgResearch Limited, Te Ohu Rangahau Kai, Massey University Campus, Palmerston North 4442, New Zealand; (E.P.); (Y.Y.); (M.G.R.)
- Departamento de Producción Animal, Estación Experimental Agropecuaria Balcarce, Instituto Nacional de Tecnología Agropecuaria, c.c. 276, Balcarce 7620, Argentina
| | - Yangfan Ye
- AgResearch Limited, Te Ohu Rangahau Kai, Massey University Campus, Palmerston North 4442, New Zealand; (E.P.); (Y.Y.); (M.G.R.)
- Animal Science, School of Agriculture and Environment, Massey University, Private Bag 11222, Palmerston North 4442, New Zealand
| | - Graham T. Eyres
- Department of Food Science, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand; (G.T.E.); (P.S.)
| | - Luis Guerrero
- IRTA-Monells, Finca Camps i Armet, 17121 Monells, Spain;
| | - Mariza G. Reis
- AgResearch Limited, Te Ohu Rangahau Kai, Massey University Campus, Palmerston North 4442, New Zealand; (E.P.); (Y.Y.); (M.G.R.)
| | - Patrick Silcock
- Department of Food Science, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand; (G.T.E.); (P.S.)
| | | | - Carolina E. Realini
- AgResearch Limited, Te Ohu Rangahau Kai, Massey University Campus, Palmerston North 4442, New Zealand; (E.P.); (Y.Y.); (M.G.R.)
- Correspondence:
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23
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Needham T, Engels RA, Hoffman LC. Sensory Characteristics of Male Impala ( Aepyceros melampus) Meat, Produced under Varying Production Systems and Nutrition. Foods 2021; 10:619. [PMID: 33803991 PMCID: PMC8001185 DOI: 10.3390/foods10030619] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 03/10/2021] [Indexed: 11/16/2022] Open
Abstract
The objective of this study was to determine the influence of three production systems (intensive, semi-extensive and extensive) with differing nutrition on the descriptive sensory and fatty acid profiles of sub-adult (±15-18 months old) male impala longissimus thoracis et lumborum (LTL) muscles. The discriminant analysis plot showed that extensively produced impala had a sensory profile distinct from the intensive and semi-extensive system impala. Extensively produced impala had the highest sensory ratings for overall intensity, gamey, beef-like, herbaceous, and sweet-associated aroma and flavor of their meat. The intensive and semi-extensive system impala did not differ for most of the sensory attributes, except for higher ratings for gamey flavor, liver-like flavor, tenderness and mealiness, and lower ratings for residue found in semi-extensive system impala. The overall aroma and flavor intensities of impala meat in general had strong positive correlations with gamey, beef-like, herbaceous, and sweet-associated aromas and flavors; however, marketing should be adjusted depending on the nutrition received by the impala, to allow consumers to select their preferential sensory profile. Impala meat from all three production systems had low fat contents (<2%), and desirable fatty acid profiles.
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Affiliation(s)
- Tersia Needham
- Department of Animal Science and Food Processing, Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, Kamýcká 129, 16500 Prague-Suchdol, Czech Republic;
- Department of Animal Sciences, University of Stellenbosch, Private Bag X1, Matieland, Stellenbosch 7602, South Africa;
| | - Retha A. Engels
- Department of Animal Sciences, University of Stellenbosch, Private Bag X1, Matieland, Stellenbosch 7602, South Africa;
| | - Louwrens C. Hoffman
- Department of Animal Sciences, University of Stellenbosch, Private Bag X1, Matieland, Stellenbosch 7602, South Africa;
- Center for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation (QAAFI), The University of Queensland, Health and Food Sciences Precinct, 39 Kessels Rd, Coopers Plains 4108, Australia
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24
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Zhang Q, Que M, Li W, Gao S, Tan X, Bu D. Gangba sheep in the Tibetan plateau: Validating their unique meat quality and grazing factor analysis. J Environ Sci (China) 2021; 101:117-122. [PMID: 33334507 DOI: 10.1016/j.jes.2020.06.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 06/17/2020] [Accepted: 06/18/2020] [Indexed: 06/12/2023]
Abstract
Gangba sheep are known for having typical sensory characteristics attributed to free range conditions and grazing on wild plants. The genuine Gangba mutton was selected as the experimental group, and the commercial Tibetan mutton was selected as the control group, the nutritive composition of basic chemical components, amino acids and fatty acids in mutton were investigated to correlate its unique meat quality and eating satisfaction. The results showed that fatty acids were significantly higher (P<0.05) in Gangba mutton than in commercial mutton, and the higher content of flavoring amino acids (glutamic acid and aspartame) were primarily responsible for the taste attributes umami of meat juices. Moreover, the trace elements analysis in mutton and grazing factors (forage, water source and soil) were conducted, to explain the source of essential trace elements in mutton. The concentrations of essential trace elements show that the Gangba mutton was a valuable source for highly available Cu and Zn in human nutrition, and well managed with few detected of toxicity metal. The concentrations of essential trace elements in mutton are closely related to the trace elements in environmental grazing factors. In conclusion, the congenital grazing conditions (a highly mineralized water resource, natural forages and clean soils) were shown to contribute to the unique meat characteristics of Gangba sheep.
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Affiliation(s)
- Qiangying Zhang
- School of Science, Tibet University, Lhasa 850000, Tibet, China
| | - Ming Que
- School of Science, Tibet University, Lhasa 850000, Tibet, China; Middle School of Gangba County, Xigaze 857700, Tibet, China
| | - Wei Li
- School of Science, Tibet University, Lhasa 850000, Tibet, China
| | - Shuang Gao
- School of Science, Tibet University, Lhasa 850000, Tibet, China
| | - Xin Tan
- School of Science, Tibet University, Lhasa 850000, Tibet, China
| | - Duo Bu
- School of Science, Tibet University, Lhasa 850000, Tibet, China.
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25
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Volatile Compounds, Odour and Flavour Attributes of Lamb Meat from the Navarra Breed as Affected by Ageing. Foods 2021; 10:foods10030493. [PMID: 33668975 PMCID: PMC7996566 DOI: 10.3390/foods10030493] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 02/12/2021] [Accepted: 02/20/2021] [Indexed: 11/23/2022] Open
Abstract
This study aimed to assess the influence of ageing on the volatile compounds, as well as odour and flavour attributes of lamb meat from the Navarra breed. Twenty-one male lambs were fed a commercial concentrate diet after weaning and were harvested at 101 ± 6.5 days of age. From the Longissimus thoracis, 26 volatile compounds were identified, with hexanal, 2-propanone, and nonanal the most abundant (57.17% relative percentage abundance, RPA). The effect of ageing (1 vs. 4 d) was observed (p < 0.05) in six compounds: 1,4-dimethylbenzene decreased with ageing, while tridecane, 3-methylbutanal, 2-heptanone, 3-octanone, and 1-octen-3-ol increased. In general, ageing was linked to a decrease in livery and bloody flavour, bloody odour and ethanal, and an increase in pentane, hexanal, and heptanal, which are usually associated with fresh green grass and fat descriptors. Consequently, ageing lamb from the Navarra breed for four days might have a positive effect on meat sensory odour and flavour quality.
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26
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Zhang C, Zhang H, Liu M, Zhao X, Luo H. Effect of Breed on the Volatile Compound Precursors and Odor Profile Attributes of Lamb Meat. Foods 2020; 9:foods9091178. [PMID: 32858830 PMCID: PMC7555795 DOI: 10.3390/foods9091178] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 08/23/2020] [Accepted: 08/24/2020] [Indexed: 12/23/2022] Open
Abstract
The objective was to characterize the effect of breed on the volatile compound precursors and odor profile attributes and to provide an insight into improving the lamb production and meat flavor. Three-month-old Tan (n = 10), Hu (n = 10) and Dorper lambs (n = 10) were raised for 90 days in single barns. Longissimus thoracis et lumborum muscle of all lambs were collected for analysis of intramuscular fat, fatty acids, amino acids, and volatile compounds. The results showed Tan and Hu accumulated more intramuscular fat and saturated fatty acid than Dorper. However, Tan had lower linoleic acid, alpha linolenic acid and total polyunsaturated fatty acid proportion than Dorper. Amino acid in Dorper was significantly higher than Tan and Hu. Furthermore, (E)-2-hexenal was only found in Tan lambs, while (E)-2-nonenal and (E,E)-2,4-nonadienal were only found in Dorper lambs. Hu had the fewest volatile compounds. The results of this study demonstrated that Dorper had larger proportion of polyunsaturated fatty acids (PUFA), amino acid and volatile compounds than Tan and Hu. However, the specific PUFA derivates of Dorper had a negative impact on the odor profile. Hence, we suggest that further works should be focused on crossbreed lambs by Dorper and Tan, to enhance the lamb production and improve meat flavor.
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Affiliation(s)
- Can Zhang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (C.Z.); (M.L.); (X.Z.)
| | - Hao Zhang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China;
| | - Ming Liu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (C.Z.); (M.L.); (X.Z.)
| | - Xin’gang Zhao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (C.Z.); (M.L.); (X.Z.)
| | - Hailing Luo
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (C.Z.); (M.L.); (X.Z.)
- Correspondence:
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27
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Gkarane V, Allen P, Brunton NP, Gravador RS, Claffey NA, Harrison SM, Diskin MG, Fahey AG, Farmer LJ, Moloney AP, Monahan FJ. Volatile and sensory analysis to discriminate meat from lambs fed different concentrate-based diets. ANIMAL PRODUCTION SCIENCE 2020. [DOI: 10.1071/an19349] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Context
Diet is one the most important pre-slaughter factors that potentially influences meat quality, but its effect on flavour quality remains equivocal.
Aim
The aim of the present study was to investigate the effect of diet composition on the flavour and sensory quality of meat from Texel × Scottish Blackface ram lambs.
Methods
Groups of 11 lambs were assigned to one of the following four dietary treatments for 54 days before slaughter: a concentrate containing barley, maize and soybean (C treatment); C supplemented with a saturated fat source (Megalac®); C supplemented with protected linseed oil; a by-product-based diet containing citrus pulp, distillers grain and soybean. Samples of cooked M. longissimus thoracis et lumborum were subjected to volatile analysis involving solid-phase microextraction followed by gas chromatography–mass spectrometry and to sensory analysis performed by a trained panel.
Key results
Univariate analysis of volatile data and sensory data showed few differences due to dietary treatments. However, multivariate analysis of the volatile data, and to a lesser extent the sensory profile data, showed potential to discriminate between lamb meat samples, on the basis of the different dietary treatments.
Conclusions
The inclusion of certain dietary ingredients in the diets of lambs to enhance the nutritional profile of lamb meat (through increasing n-3 fatty acid content) or to reduce feed-formulation costs (through the use of by-products) has minor effects on sensory quality but permits some discrimination between dietary treatments following the application of multivariate analysis.
Implications
The application of the findings is in allowing lamb producers to use alternative feed types without affecting the sensory quality of lamb negatively, but with the potential to discriminate lamb meat on the basis of its dietary background.
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