Academic Journal
Probiotics supplements on fattening guinea pigs: effects on carcass traits and non-carcass components.
| Τίτλος: | Probiotics supplements on fattening guinea pigs: effects on carcass traits and non-carcass components. |
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| Συγγραφείς: | Miranda-Yuquilema JE; Animal Production and Industrialization Research Unit, Engineering Faculty, Universidad Nacional de Chimborazo, Riobamba, EC060108, Ecuador. josee.miranda@unach.edu.ec.; PANIAM Research Unit, Engineering Faculty, Universidad Nacional de Chimborazo, Riobamba, 060150, Ecuador. josee.miranda@unach.edu.ec., Sánchez-Macías D; Animal Production and Industrialization Research Unit, Engineering Faculty, Universidad Nacional de Chimborazo, Riobamba, EC060108, Ecuador.; Integral and Data Science Research Unit, Engineering Faculty, Universidad Nacional de Chimborazo, Riobamba, 060150, Ecuador., Vizuete-Cajo J; Animal Production and Industrialization Research Unit, Engineering Faculty, Universidad Nacional de Chimborazo, Riobamba, EC060108, Ecuador., Muñoz-Alvear E; Animal Production and Industrialization Research Unit, Engineering Faculty, Universidad Nacional de Chimborazo, Riobamba, EC060108, Ecuador. |
| Πηγή: | Tropical animal health and production [Trop Anim Health Prod] 2026 Oct 05; Vol. 58 (8). Date of Electronic Publication: 2026 Oct 05. |
| Τύπος έκδοσης: | Journal Article |
| Γλώσσα: | English |
| Στοιχεία περιοδικού: | Publisher: Springer Country of Publication: United States NLM ID: 1277355 Publication Model: Electronic Cited Medium: Internet ISSN: 1573-7438 (Electronic) Linking ISSN: 00494747 NLM ISO Abbreviation: Trop Anim Health Prod Subsets: MEDLINE |
| Imprint Name(s): | Publication: 2005- : Heidelberg : Springer Original Publication: Edinburgh, Livingstone. |
| Ιατρικοί όροι (MeSH): | Probiotics*/administration & dosage , Probiotics*/pharmacology , Meat*/analysis, Guinea Pigs/growth & development ; Guinea Pigs/physiology ; Animal Feed/analysis ; Diet/veterinary ; Dietary Supplements/analysis ; Lactobacillus acidophilus/chemistry ; Body Composition/drug effects ; Animals ; Male ; Fermentation ; Hydrogen-Ion Concentration ; Random Allocation |
| Περίληψη: | The growing demand for animal protein is driving the search for natural alternatives, such as probiotics, following the ban on growth-promoting antibiotics due to bacterial resistance. The objective of this study was to evaluate the effect of including probiotics made from agro-industrial waste fermented with Lactobacillus acidophilus and Kluyveromyces fragilis and their combination on carcass traits, non-carcass components and colour and pH evolution during muscle-to-meat conversion of 90-day-old male guinea pigs. A total of 40 male guinea pigs were randomly assigned to one of four groups: (a) Ct, control group; (b) LA, supplemented with Lactobacillus acidophilus; (c) Kf, supplemented with Kluyveromyces fragilis; (d) LAKf, supplemented with a combination of L. acidophilus and K. fragilis. The combination of L. acidophilus and K. fragilis significantly increased live weight at slaughter compared to the control group, demonstrating synergistic effects between bacterial and yeast probiotics. Carcass yields (HCY and CCY) were not significantly influenced by probiotic supplementation, remaining within the standard ranges for the breed. Tissue composition showed proportional scaling with body weight, and non-carcass components development remained proportional to body size across treatments, indicating that growth benefits were achieved without imposing metabolic stress or requiring compensatory organ hypertrophy. Probiotic supplementation influenced meat colour parameters, particularly reducing yellowness (b*) and improving colour stability during chilling in yeast-containing treatments. The pH evolution during the post-mortem period was not affected by probiotic supplementation, indicating normal glycolytic processes and favourable conditions for meat quality development. These findings support the use of fermented agro-industrial substrates as effective probiotic delivery systems in guinea pig production, offering a sustainable approach that addresses both waste valorisation and animal nutrition challenges. (© 2026. The Author(s), under exclusive licence to Springer Nature B.V.) |
| Competing Interests: | Declarations. Conflict of interest: The authors declare no conflicts of interest. |
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| Grant Information: | 194-CIV-30-11-2022 Vicerrectorado de Investigación, Vinculación y Postgrado.UNACH |
| Contributed Indexing: | Keywords: Kluyveromyces fragilis; Lactobacillus acidophilus; Carcass traits; Guinea pig; Non-carcass component; Probiotic |
| Entry Date(s): | Date Created: 20261005 Date Completed: 20261005 Latest Revision: 20261008 |
| Update Code: | 20261008 |
| DOI: | 10.1007/s11250-026-05365-3 |
| PMID: | 42831970 |
| Βάση Δεδομένων: | MEDLINE |
| ISSN: | 1573-7438 |
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| DOI: | 10.1007/s11250-026-05365-3 |