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Effects of cashew nut-shell extract and monensin on microbial fermentation in a dual-flow continuous culture

dc.creatorSarmikasoglou, Efstathios
dc.creatorJohnson, Mikayla L.
dc.creatorVinyard, James R.
dc.creatorSumadong, Phussorn
dc.creatorLobo, Richard Roberto
dc.creatorArce Cordero, José Alberto
dc.creatorBahman, Aneesa
dc.creatorRavelo, Anay D.
dc.creatorHalima, Sultana
dc.creatorSalas Solís, Gerald
dc.creatorHikita, C.
dc.creatorWatanabe, T.
dc.creatorFaciola, Antonio Pinheiro
dc.date.accessioned2023-11-16T19:53:09Z
dc.date.available2023-11-16T19:53:09Z
dc.date.issued2023-09-09
dc.description.abstractThe objective of this study was to compare cashew nut-shell extract (CNSE) to monensin and evaluate changes in in vitro mixed ruminal microorganism fermentation, nutrient digestibility, and microbial nitrogen outflow. Treatments were randomly assigned to 8 fermenters in a replicated 4 × 4 Latin square design with 4 experimental periods of 10 d (7 d for diet adaptation and 3 d for sample collection). Basal diets contained 43.5:56.5 forage: concentrate ratio and each fermenter was fed 106 g of DM/d divided equally between 2 feeding times. Treatments were control (CON, basal diet without additives), 2.5 μM monensin (MON), 100 ppm CNSE granule (CNSE100), and 200 ppm CNSE granule (CNSE200). On d 8 to10, samples were collected for pH, lactate, NH3-N, volatile fatty acids, mixed protozoa counts, organic matter (OM), and neutral detergent fiber (NDF) digestibility. Data were analyzed with the GLIMMIX procedure of SAS. Orthogonal contrasts were used to test the effects of (1) ADD (CON vs. MON, CNSE100, and CNSE200); (2) MCN (MON vs. CNSE100 and CNSE200); and (3) DOSE (CNSE100 vs. CNSE200). Significance was declared at P ≤ 0.05 and tendencies at 0.05 < P ≤ 0.10. We observed that butyrate concentration in all treatments was lower compared with CON and the concentration for MON was lower compared with CNSE treatments. Protozoal population in all treatments was lower compared with CON. No effects were observed for pH, lactate, NH3-N, total volatile fatty acids, OM, or N utilization. Within the 24 h pool, protozoal generation time, tended to be lower, while NDF digestibility tended to be greater in response to all additives. Furthermore, the microbial N flow, and the efficiency of N use tended to be lower for the monensin treatment compared with CNSE treatments. Overall, our results showed that both monensin and CNSE decreased butyrate synthesis and protozoal populations, while not affecting OM digestibility and tended to increase NDF digestibility; however, such effects are greater with monensin than CNSE nut-shell.es_ES
dc.description.procedenceUCR::Vicerrectoría de Docencia::Ciencias Agroalimentarias::Facultad de Ciencias Agroalimentarias::Escuela de Zootecniaes_ES
dc.description.sponsorshipUniversidad de Costa Rica/[739-C2-780]/UCR/Costa Ricaes_ES
dc.identifier.citationhttps://www.sciencedirect.com/science/article/pii/S0022030223006094?via%3Dihub
dc.identifier.codproyecto739-C2-780
dc.identifier.doi10.3168/jds.2023-23597
dc.identifier.issn1525-3198
dc.identifier.issn0022-0302
dc.identifier.urihttps://hdl.handle.net/10669/90397
dc.language.isoenges_ES
dc.rightsacceso abiertoes_ES
dc.sourceJournal of Dairy Science, Pre-proofes_ES
dc.subjectanacardic acides_ES
dc.subjectcardanoles_ES
dc.subjectcardoles_ES
dc.subjectionophoreses_ES
dc.titleEffects of cashew nut-shell extract and monensin on microbial fermentation in a dual-flow continuous culturees_ES
dc.typeartículo original

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