The effect of breed and body weight at slaughter on histochemical muscle fiber characteristics and meat quality of longissimus lumborum and semitendinosus lamb muscles.
| Title: | The effect of breed and body weight at slaughter on histochemical muscle fiber characteristics and meat quality of longissimus lumborum and semitendinosus lamb muscles. |
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| Authors: | Rant, Witold, Radzik-Rant, Aurelia |
| Source: | Archives Animal Breeding / Archiv Tierzucht; 2023, Vol. 66 Issue 4, p439-449, 11p |
| Subject Terms: | MEAT quality, ERECTOR spinae muscles, BODY weight, LAMBS, FIBERS, SKELETAL muscle |
| Abstract: | The skeletal muscles of mammals are composed of fibers of different morphological, metabolic and functional characteristics. The properties of muscle fibers may be determined genetically as well as by environmental factors such as the age of the animals, their physical activity, the level of nutrition, or the selection intensity. The present study was conducted to determine the influence of genotype (Polish Lowland vs. Polish Heath) and body weight at slaughter (23–25 kg vs. 35–40 kg) of lambs on histological characteristics of muscle fibers in musculus longissimus lumborum (LL) and musculus semitendinosus (ST) skeletal muscles and their impact on chosen meat quality features. Three types of muscle fibers were identified: slow-twitch oxidative (STO), fast-twitch oxidative (FTO) and fast-twitch glycolytic (FTG). Differences in the diameters of individual fiber types between the LL and ST muscles have been found in both investigated genotypes. The diameters of the analyzed types of fibers were usually larger in the ST muscle compared to the LL muscle. The lambs of the more primitive Polish Heath breed were characterized by a smaller diameter of all fiber types, especially in the LL muscle. The higher proportion of STO fibers and the lower proportion of FTO fibers have been found in the LL muscle of Polish Heath lambs in the group with lower body weight. The breed of lambs, muscle type and slaughter body weight had an impact on some meat quality characteristics, especially color, intramuscular fat content and expressed juice. [ABSTRACT FROM AUTHOR] |
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| Database: | Complementary Index |
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| Header | DbId: edb DbLabel: Complementary Index An: 174816825 RelevancyScore: 983 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 983.150695800781 |
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| Items | – Name: Title Label: Title Group: Ti Data: The effect of breed and body weight at slaughter on histochemical muscle fiber characteristics and meat quality of longissimus lumborum and semitendinosus lamb muscles. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Rant%2C+Witold%22">Rant, Witold</searchLink><br /><searchLink fieldCode="AR" term="%22Radzik-Rant%2C+Aurelia%22">Radzik-Rant, Aurelia</searchLink> – Name: TitleSource Label: Source Group: Src Data: Archives Animal Breeding / Archiv Tierzucht; 2023, Vol. 66 Issue 4, p439-449, 11p – Name: Subject Label: Subject Terms Group: Su Data: <searchLink fieldCode="DE" term="%22MEAT+quality%22">MEAT quality</searchLink><br /><searchLink fieldCode="DE" term="%22ERECTOR+spinae+muscles%22">ERECTOR spinae muscles</searchLink><br /><searchLink fieldCode="DE" term="%22BODY+weight%22">BODY weight</searchLink><br /><searchLink fieldCode="DE" term="%22LAMBS%22">LAMBS</searchLink><br /><searchLink fieldCode="DE" term="%22FIBERS%22">FIBERS</searchLink><br /><searchLink fieldCode="DE" term="%22SKELETAL+muscle%22">SKELETAL muscle</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The skeletal muscles of mammals are composed of fibers of different morphological, metabolic and functional characteristics. The properties of muscle fibers may be determined genetically as well as by environmental factors such as the age of the animals, their physical activity, the level of nutrition, or the selection intensity. The present study was conducted to determine the influence of genotype (Polish Lowland vs. Polish Heath) and body weight at slaughter (23–25 kg vs. 35–40 kg) of lambs on histological characteristics of muscle fibers in musculus longissimus lumborum (LL) and musculus semitendinosus (ST) skeletal muscles and their impact on chosen meat quality features. Three types of muscle fibers were identified: slow-twitch oxidative (STO), fast-twitch oxidative (FTO) and fast-twitch glycolytic (FTG). Differences in the diameters of individual fiber types between the LL and ST muscles have been found in both investigated genotypes. The diameters of the analyzed types of fibers were usually larger in the ST muscle compared to the LL muscle. The lambs of the more primitive Polish Heath breed were characterized by a smaller diameter of all fiber types, especially in the LL muscle. The higher proportion of STO fibers and the lower proportion of FTO fibers have been found in the LL muscle of Polish Heath lambs in the group with lower body weight. The breed of lambs, muscle type and slaughter body weight had an impact on some meat quality characteristics, especially color, intramuscular fat content and expressed juice. [ABSTRACT FROM AUTHOR] – Name: Abstract Label: Group: Ab Data: <i>Copyright of Archives Animal Breeding / Archiv Tierzucht is the property of Copernicus Gesellschaft mbH and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.5194/aab-66-439-2023 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 11 StartPage: 439 Subjects: – SubjectFull: MEAT quality Type: general – SubjectFull: ERECTOR spinae muscles Type: general – SubjectFull: BODY weight Type: general – SubjectFull: LAMBS Type: general – SubjectFull: FIBERS Type: general – SubjectFull: SKELETAL muscle Type: general Titles: – TitleFull: The effect of breed and body weight at slaughter on histochemical muscle fiber characteristics and meat quality of longissimus lumborum and semitendinosus lamb muscles. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Rant, Witold – PersonEntity: Name: NameFull: Radzik-Rant, Aurelia IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 10 Text: 2023 Type: published Y: 2023 Identifiers: – Type: issn-print Value: 00039438 Numbering: – Type: volume Value: 66 – Type: issue Value: 4 Titles: – TitleFull: Archives Animal Breeding / Archiv Tierzucht Type: main |
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