Characterization and biological activity of condensed tannins from tropical forage legumes

Pereira, Tatiana Pires; Modesto, Elisa Cristina; Nepomuceno, Delci de Deus; Oliveira, Osniel Faria de; Freitas, Rafaela Scalise Xavier de; Muir, James P.; Júnior, José Carlos Batista Dubeux; Almeida, João Carlos de Carvalho

doi:10.1590/s0100-204x2018000900011

Cited by 15 publications

(5 citation statements)

References 32 publications

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“…n fertilizer application has significantly contributed to forage productivity in tropical regions [60][61][62]. Nitrogen addition can increase plant growth rate, resulting in higher forage production, augmented green leaf mass, and increased crude protein concentration, as well as affecting energy and protein digestibility in ruminants and, consequently, impacting feeding value, animal nutrition, and n excretion from urine and feces [63,64].…”

Section: Role Of Fertilizers In Intensification Systemsmentioning

confidence: 99%

Intensification: A Key Strategy to Achieve Great Animal and Environmental Beef Cattle Production Sustainability in Brachiaria Grasslands

et al. 2020

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Intensification of tropical grassland can be a strategy to increase beef production, but methods for achieving this should maintain or reduce its environmental impact and should not compromise future food-producing capacity. The objective of this review was to discuss the aspects of grassland management, animal supplementation, the environment, and the socioeconomics of grassland intensification. Reducing environmental impact in the form of, for example, greenhouse gas (GHG) emissions is particularly important in Brazil, which is the second-largest beef producer in the world. Most Brazilian pastures, however, are degraded, representing a considerable opportunity for the mitigation and increase of beef-cattle production, and consequently increasing global protein supply. Moreover, in Brazil, forage production is necessary for seasonal feeding strategies that maintain animal performance during periods of forage scarcity. There are many options to achieve this objective that can be adopted alone or in association. These options include improving grassland management, pasture fertilization, and animal supplementation. Improving grazing management has the potential to mitigate GHG emissions through the reduction of the intensity of CO2 emissions, as well as the preservation of natural areas by reducing the need for expanding pastureland. Limitations to farmers adopting intensification strategies include cultural aspects and the lack of financial resources and technical assistance.

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Section: Role Of Fertilizers In Intensification Systemsmentioning

confidence: 99%

Intensification: A Key Strategy to Achieve Great Animal and Environmental Beef Cattle Production Sustainability in Brachiaria Grasslands

et al. 2020

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“…La evaluación in vitro con la adición de 30% de Acacia decurrens considerada como una fuente de taninos, redujo la concentración de amoniaco a las 24 y 48 h mostrando diferencias (P < 0.05) en relación al tratamiento control (Ramírez-Vásquez et al, 2017). Los resultados obtenidos en el presente estudio no mostraron efecto de los taninos condensados al adicionarlos en 4%, lo que puede atribuirse a factores como la estructura y concentración de los taninos, tipo de planta, madurez y etapa fenológica afectando la bioactividad de los taninos condensados (Pereira et al, 2018). En otro estudio donde se utilizó aceite de anís (500 mg animal/día) obtuvieron una disminución en la producción de NH3 considerando que el anís disminuye la desaminación (Fandiño et al, 2008).…”

Section: Resultados Y Discusiónunclassified

FERMENTACIÓN RUMINAL Y PRODUCCIÓN DE METANO IN VITRO DE DIETAS PARA OVINOS CON INCLUSIÓN DE TANINOS CONDENSADOS Y NIVELES CRECIENTES DE ACEITE DE ORÉGANO (Lippia graveolens)

Cuautle¹,

Herrera-Haro²,

Ramírez-Bribiesca³

et al. 2022

Trop Subtrop Agroecosyst

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Background. Ruminants have been related to greenhouse gas production. Therefore, it has been necessary to find alternatives by using natural additives to reduce their production by modulation of rumen fermentation. Objective. It was to evaluate the effect of the addition of condensed tannins (CT) and different levels of essential oregano oil (Lippia graveolens) (EOO) in sheep's diets on in vitro fermentation products such as total gas production, methane (CH4), carbon dioxide (CO2), pH, ammoniacal nitrogen (N-NH3), and volatile fatty acids (VFA). Methodology. There were evaluated six experimental diets: the control diet with 4% of CT kg/DM, and 0.02, 0.04, 0.06, 0.08 or 1% de EOO kg/DM, respectively. Total gas production, CH4, CO2, pH, N-NH3, and AGV were measured at different in vitro incubation times. Results. Total gas production was not affected (P > 0.05) due to treatment or the interaction treatment*time. An exponential increment was observed (P < 0.05) according to incubation time. CH4 and CO2 production increased at 48 h. The lowest emissions of these gases were recorded when 0.04, 0.06, 0.08, and 1% of EOO were added to the diet. Nevertheless, no differences were found (P > 0.05) due to treatment or the interaction treatment*time. Acetic and butyric acid concentrations were affected due to incubation time and the interaction treatment*time; however, there was no effect due to treatment (P > 0.05). Propionic acid production and pH were not affected (P > 0.05) due to treatment, time, or interaction treatment*time. N-NH3 production increased through incubation time (P < 0.05), with the highest concentration at 48 h for all treatments, without differences (P > 0.05) due to treatment or interaction treatment*time. Implications. These results suggest that the inclusion levels of TC and EOO in the diet were not enough to affect rumen fermentation or methane production. Therefore, it is necessary to evaluate higher levels of these compounds in sheep's diets. Conclusion. The addition of CT or the different levels of EOO included in sheep's diets evaluated in this study did not affect total gas production, CH4, CO2, pH, concentration of N-NH3, AGV, and pH.

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“…We speculate that, at the farm level where climatic and soil properties are relatively uniform, differences in land use might influence the quantity and quality of organic matter added to the soil. These variables might have induced plantsoil feedbacks to regulate soil C cycling at the micro level, causing local variations in C stocks (Post et al, 1982;Saiz et al, 2012;Chen et al, 2018).…”

Section: Relationships Between Soc and Soil And Plant Chemical Propermentioning

confidence: 99%

Nitrogen availability determines the long-term impact of land use change on soil carbon stocks in grasslands of southern Ghana

Nyameasem

Reinsch

Taube

et al. 2020

SOIL

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Abstract. Enhancing the capacity of agricultural soils to resist soil degradation and to mitigate climate change requires long-term assessments of land use systems. Such long-term evaluations, particularly regarding low-input livestock systems, are limited. In the absence of suitable long-term experiments, this study assessed the outcome of C inputs and outputs across an array of plant functional groups in arable and permanent systems of a tropical savannah after more than 50 years of consistent land use. Soil samples were taken (0–30 cm depth) from arable crop fields, grazed–seeded grassland, cut–use permanent crops and native grassland. Soil organic carbon (SOC) stocks ranged from 17 to 64 Mg SOC ha−1 (mean ± sd = 32.9 ± 10.2 Mg ha−1). SOC stocks were lower for grazed–seeded grassland relative to cut–use grass, legume trees and shrubs. Accordingly, while the conversion of the native grassland to grazed pastures caused an estimated loss of 44 % of SOC over the period, the conversion to woody legumes resulted in slight (5 %), incremental gains. Within sown systems, nitrogen (N) availability seemed to be the most critical factor in determining the fate of the SOC stocks, with the soil N concentration and SOC being highly correlated (r – 0.86; p < 0.001). In total N, P and K were significant predictors of SOC density in the soils. Moreover, secondary plant metabolites in legumes, namely tannins, were identified as having an impact on SOC. The results from this study provide the theoretical basis for testing the hypothesis that improved soil fertility management and the use of tannin-rich plants have the potential to promote long-term SOC storage in the savannah ecological region. Our study also shows the potential of legume tree/shrub forage species as an environmentally sustainable land use option to mitigate agricultural CO2 emissions from low-input livestock systems in the grasslands of southern Ghana.

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Characterization and biological activity of condensed tannins from tropical forage legumes

Cited by 15 publications

References 32 publications

Intensification: A Key Strategy to Achieve Great Animal and Environmental Beef Cattle Production Sustainability in Brachiaria Grasslands

Intensification: A Key Strategy to Achieve Great Animal and Environmental Beef Cattle Production Sustainability in Brachiaria Grasslands

FERMENTACIÓN RUMINAL Y PRODUCCIÓN DE METANO IN VITRO DE DIETAS PARA OVINOS CON INCLUSIÓN DE TANINOS CONDENSADOS Y NIVELES CRECIENTES DE ACEITE DE ORÉGANO (Lippia graveolens)

Nitrogen availability determines the long-term impact of land use change on soil carbon stocks in grasslands of southern Ghana

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