Soybean molasses increases subcutaneous fat deposition while reducing lipid oxidation in the meat of castrated lambs

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade Federal de São Carlos (UFSCar)-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorFederal University of Espírito Santo-
Autor(es): dc.creatorPereira-Junior, Sérgio A.G.-
Autor(es): dc.creatorCosta, Rayanne V.-
Autor(es): dc.creatorRodrigues, Julia L.-
Autor(es): dc.creatorTorrecilhas, Juliana A.-
Autor(es): dc.creatorChiaratti, Marcos R.-
Autor(es): dc.creatorLanna, Dante P.D.-
Autor(es): dc.creatordas Chagas, Julia C.-
Autor(es): dc.creatorNociti, Ricardo P.-
Autor(es): dc.creatorMeirelles, Flavio V.-
Autor(es): dc.creatorFerraz, José Bento S.-
Autor(es): dc.creatorFernandes, Márcia H.M.R.-
Autor(es): dc.creatorAlmeida, Marco Túlio C.-
Autor(es): dc.creatorEzequiel, Jane M.B.-
Data de aceite: dc.date.accessioned2025-08-21T23:18:57Z-
Data de disponibilização: dc.date.available2025-08-21T23:18:57Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2023-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1093/jas/skae130-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/306734-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/306734-
Descrição: dc.descriptionThis study aimed to evaluate the effect of including soybean molasses (SM) on performance, blood parameters, carcass traits, meat quality, fatty acid, and muscle (longissimus thoracis) transcriptomic profiles of castrated lambs. Twenty Dorper × Santa Inês lambs (20.06 ± 0.76 kg body weight [BW]) were assigned to a randomized block design, stratified by BW, with the following treatments: CON: 0 g/kg of SM and SM20: 200 g/kg of SM on dry matter basis, allocated in individual pens. The diet consisted of 840 g/kg concentrate and 160 g/kg corn silage for 76 d, with the first 12 d as an adaptation period and the remaining 64 d on the finishing diet. The SM20 diet increased blood urea concentration (P = 0.03) while reduced glucose concentration (P = 0.04). Lambs fed SM showed higher subcutaneous fat deposition (P = 0.04) and higher subcutaneous adipocyte diameter (P < 0.01), in addition to reduced meat lipid oxidation (P < 0.01). SM reduced the quantity of branched-chain fatty acids in longissimus thoracis (P = 0.05) and increased the quantity of saturated fatty acids (P = 0.01). In the transcriptomic analysis, 294 genes were identified as differentially expressed, which belong to pathways such as oxidative phosphorylation, citric acid cycle, and monosaccharide metabolic process. In conclusion, diet with SM increased carcass fat deposition, reduced lipid oxidation, and changed the energy metabolism, supporting its use in ruminant nutrition. Lay Summary This study investigated the effects of incorporating soybean molasses (SM) into the diet of castrated lambs on various aspects of their performance and meat quality. Twenty lambs were divided into two groups: one was fed a control diet without SM whereas the other was fed a similar diet but containing 20% of SM. The feeding trial lasted for 76 d. Results showed that the SM inclusion in the diet led to increased blood urea levels and decreased glucose concentrations. SM inclusion also resulted in lambs with higher levels of subcutaneous fat and larger adipocytes, while reducing meat lipid oxidation. Moreover, SM altered fatty acid composition in the meat, decreasing branched-chain fatty acids and increasing saturated fatty acids. In agreement with these findings, transcriptomic analysis revealed a significant change in the expression of genes related to energy metabolism in the muscle of lambs fed SM. In conclusion, incorporating SM in lamb’s diet increased fat deposition, improved meat quality, and induced a transcriptomic change in the muscle energy metabolism, supporting its potential use in ruminant nutrition.-
Descrição: dc.descriptionDepartment of Animal Science Agrarian Science and Veterinary College São Paulo State University “Unesp”, SP-
Descrição: dc.descriptionDepartment of Animal Production Veterinary Medicine and Animal Science College São Paulo State University “Unesp”, SP-
Descrição: dc.descriptionDepartamento de Genética e Evolução Universidade Federal de São Carlos, SP-
Descrição: dc.descriptionDepartment of Animal Science “Luiz de Queiroz” College of Agriculture University of São Paulo, SP-
Descrição: dc.descriptionDepartment of Veterinary Medicine College of Animal Science and Food Engineering University of São Paulo, SP-
Descrição: dc.descriptionDepartment of Animal Science Federal University of Espírito Santo, ES-
Descrição: dc.descriptionDepartment of Animal Science Agrarian Science and Veterinary College São Paulo State University “Unesp”, SP-
Descrição: dc.descriptionDepartment of Animal Production Veterinary Medicine and Animal Science College São Paulo State University “Unesp”, SP-
Idioma: dc.languageen-
Relação: dc.relationJournal of Animal Science-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectby-product-
Palavras-chave: dc.subjectfat-
Palavras-chave: dc.subjectsoluble carbohydrates-
Palavras-chave: dc.subjecttranscriptome-
Título: dc.titleSoybean molasses increases subcutaneous fat deposition while reducing lipid oxidation in the meat of castrated lambs-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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