Efecto de los sistemas silvopastoriles en la producción forrajera, consumo y comportamiento ingestivo bovino en ganaderías colombianas

ilustraciones, diagramas, mapas

Autores:
Montoya Uribe, Sebastián
Tipo de recurso:
Fecha de publicación:
2023
Institución:
Universidad Nacional de Colombia
Repositorio:
Universidad Nacional de Colombia
Idioma:
spa
OAI Identifier:
oai:repositorio.unal.edu.co:unal/84617
Acceso en línea:
https://repositorio.unal.edu.co/handle/unal/84617
https://repositorio.unal.edu.co/
Palabra clave:
630 - Agricultura y tecnologías relacionadas::636 - Producción animal
590 - Animales::599 - Mamíferos
Plantas forrajeras
Alimentos para aniamales
Feeds
Forage plants
Botanical composition of the pastures
Forage offer
Grazing bovines
Productivity
Voluntary intake
Intensive silvopastoral system (SSPi)
Ethogram
Bovinos en pastoreo
Composición botánica de las praderas
Consumo voluntario
Oferta de forraje
Productividad
Sistema silvopastoril intensivo (SSPi)
Etograma
Rights
openAccess
License
Atribución-NoComercial-SinDerivadas 4.0 Internacional
id UNACIONAL2_477326b72796bc4575dd902d8886b8a4
oai_identifier_str oai:repositorio.unal.edu.co:unal/84617
network_acronym_str UNACIONAL2
network_name_str Universidad Nacional de Colombia
repository_id_str
dc.title.spa.fl_str_mv Efecto de los sistemas silvopastoriles en la producción forrajera, consumo y comportamiento ingestivo bovino en ganaderías colombianas
dc.title.translated.eng.fl_str_mv Effect of silvopastoral systems on forage production, dry matter intake and intake bovine behavior in Colombian livestock
title Efecto de los sistemas silvopastoriles en la producción forrajera, consumo y comportamiento ingestivo bovino en ganaderías colombianas
spellingShingle Efecto de los sistemas silvopastoriles en la producción forrajera, consumo y comportamiento ingestivo bovino en ganaderías colombianas
630 - Agricultura y tecnologías relacionadas::636 - Producción animal
590 - Animales::599 - Mamíferos
Plantas forrajeras
Alimentos para aniamales
Feeds
Forage plants
Botanical composition of the pastures
Forage offer
Grazing bovines
Productivity
Voluntary intake
Intensive silvopastoral system (SSPi)
Ethogram
Bovinos en pastoreo
Composición botánica de las praderas
Consumo voluntario
Oferta de forraje
Productividad
Sistema silvopastoril intensivo (SSPi)
Etograma
title_short Efecto de los sistemas silvopastoriles en la producción forrajera, consumo y comportamiento ingestivo bovino en ganaderías colombianas
title_full Efecto de los sistemas silvopastoriles en la producción forrajera, consumo y comportamiento ingestivo bovino en ganaderías colombianas
title_fullStr Efecto de los sistemas silvopastoriles en la producción forrajera, consumo y comportamiento ingestivo bovino en ganaderías colombianas
title_full_unstemmed Efecto de los sistemas silvopastoriles en la producción forrajera, consumo y comportamiento ingestivo bovino en ganaderías colombianas
title_sort Efecto de los sistemas silvopastoriles en la producción forrajera, consumo y comportamiento ingestivo bovino en ganaderías colombianas
dc.creator.fl_str_mv Montoya Uribe, Sebastián
dc.contributor.advisor.none.fl_str_mv Barahona Rosales, Rolando
Correa Londoño, Guillermo Antonio
dc.contributor.author.none.fl_str_mv Montoya Uribe, Sebastián
dc.contributor.researchgroup.spa.fl_str_mv Biotecnología Animal
dc.contributor.orcid.spa.fl_str_mv Barahona Rosales, Rolando [0000-0002-4246-7835]
Correa Londoño, Guillermo Antonio [0000-0001-7020-2546]
dc.subject.ddc.spa.fl_str_mv 630 - Agricultura y tecnologías relacionadas::636 - Producción animal
590 - Animales::599 - Mamíferos
topic 630 - Agricultura y tecnologías relacionadas::636 - Producción animal
590 - Animales::599 - Mamíferos
Plantas forrajeras
Alimentos para aniamales
Feeds
Forage plants
Botanical composition of the pastures
Forage offer
Grazing bovines
Productivity
Voluntary intake
Intensive silvopastoral system (SSPi)
Ethogram
Bovinos en pastoreo
Composición botánica de las praderas
Consumo voluntario
Oferta de forraje
Productividad
Sistema silvopastoril intensivo (SSPi)
Etograma
dc.subject.lemb.spa.fl_str_mv Plantas forrajeras
Alimentos para aniamales
dc.subject.lemb.eng.fl_str_mv Feeds
Forage plants
dc.subject.proposal.eng.fl_str_mv Botanical composition of the pastures
Forage offer
Grazing bovines
Productivity
Voluntary intake
Intensive silvopastoral system (SSPi)
Ethogram
dc.subject.proposal.spa.fl_str_mv Bovinos en pastoreo
Composición botánica de las praderas
Consumo voluntario
Oferta de forraje
Productividad
Sistema silvopastoril intensivo (SSPi)
Etograma
description ilustraciones, diagramas, mapas
publishDate 2023
dc.date.accessioned.none.fl_str_mv 2023-08-30T15:24:57Z
dc.date.available.none.fl_str_mv 2023-08-30T15:24:57Z
dc.date.issued.none.fl_str_mv 2023-08-29
dc.type.spa.fl_str_mv Trabajo de grado - Maestría
dc.type.driver.spa.fl_str_mv info:eu-repo/semantics/masterThesis
dc.type.version.spa.fl_str_mv info:eu-repo/semantics/acceptedVersion
dc.type.content.spa.fl_str_mv Text
dc.type.redcol.spa.fl_str_mv http://purl.org/redcol/resource_type/TM
status_str acceptedVersion
dc.identifier.uri.none.fl_str_mv https://repositorio.unal.edu.co/handle/unal/84617
dc.identifier.instname.spa.fl_str_mv Universidad Nacional de Colombia
dc.identifier.reponame.spa.fl_str_mv Repositorio Institucional Universidad Nacional de Colombia
dc.identifier.repourl.spa.fl_str_mv https://repositorio.unal.edu.co/
url https://repositorio.unal.edu.co/handle/unal/84617
https://repositorio.unal.edu.co/
identifier_str_mv Universidad Nacional de Colombia
Repositorio Institucional Universidad Nacional de Colombia
dc.language.iso.spa.fl_str_mv spa
language spa
dc.relation.indexed.spa.fl_str_mv RedCol
LaReferencia
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spelling Atribución-NoComercial-SinDerivadas 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Barahona Rosales, Rolando6a932032dbdf3d78fcc24b64e78cefc7Correa Londoño, Guillermo Antonio5b9ada2766e374b2f0fcb3254205f234Montoya Uribe, Sebastián7b004cfeb13c85d3f7735ab395e9bbd8Biotecnología AnimalBarahona Rosales, Rolando [0000-0002-4246-7835]Correa Londoño, Guillermo Antonio [0000-0001-7020-2546]2023-08-30T15:24:57Z2023-08-30T15:24:57Z2023-08-29https://repositorio.unal.edu.co/handle/unal/84617Universidad Nacional de ColombiaRepositorio Institucional Universidad Nacional de Colombiahttps://repositorio.unal.edu.co/ilustraciones, diagramas, mapasLa alta demanda de alimentos para satisfacer el acelerado crecimiento poblacional crea un gran reto para los agricultores, al tener que incrementar la producción de sus explotaciones sin expandir la frontera agropecuaria y sin incrementar los efectos adversos de estas producciones en el ambiente. A pesar de que se conoce el papel de la ganadería como motor económico para las comunidades rurales y de fomentar el desarrollo de pequeñas empresas en el sector agrícola y así contribuir al crecimiento económico nacional, el ineficiente uso de los recursos y la falta de planeación y programación empresarial deja en el panorama, sistemas de producción bovina en esquemas de pastoreo extensivo, praderas de monocultivos y emprendimientos ganaderos con alta capacidad extractiva de los recurso, alto potencial de detrimento ambiental en el territorio y con un productor ganadero sin conciencia colectiva para detener el deterioro ambiental causado. la integración del sector forestal con el ganadero, como sucede con los sistemas silvopastoriles (SSP), es una alternativa para diversificar la producción y mejorar la rentabilidad de los sistemas tradicionales de producción bovina en Latinoamérica, la inclusión de diversidad de forrajes a las dietas animales y los diferentes arreglos silvopastoriles han reportado confort térmico y mayor productividad animal, en contrate con aquellos sistemas de monocultivos mencionados anteriormente, sin embargo, las investigaciones realizadas sobre este tema siguen siendo insipientes para Colombia. Con el propósito de contribuir al conocimiento de las múltiples bondades que tienen los sistemas silvopastoriles, sobre el aumento de la productividad bovina, fue evaluado el efecto de los SSP en la oferta forrajera, el consumo en pastoreo y el comportamiento ingestivo de los hatos bovino en diferentes regiones de Colombia. Este estudio se llevó a cabo en dos etapas. El primer experimento (Capítulo 2) consistió en evaluar la oferta forrajera y el consumo bovino en 17 fincas demostrativas del “Proyecto Ganadería Colombiana Sostenible” distribuidas en 5 ecorregiones de Colombia, estos sistemas productivos ganaderos se caracterizaroncaracterizaron por tener 2 años de antigüedad de establecidos y de utilizar un manejo de pastoreos rotacionales con cargas animales ajustadas con la ayuda de técnicos de la Organización CIPAV y FEDEGAN, para las cuales se tuvieron en cuenta áreas cercadas no superiores a 5000 m2, periodos de descansos definidos por la curva de crecimiento observada de los forrajes en cada zona y de las conversaciones realizadas con los productores. Las zonas ganaderas estudiadas fueron: En la ecorregión Cafetera y el Valle Alto del Río Cauca se evaluaron sistemas con arbustos de Tithonia diversifolia (hemsl Gray) y Leucaena leucocephala. La pastura mejorada predominante fue Cynodon plectostachyus, siendo la producción de ganado de leche, la principal orientación económica. En la Región de ganadería tradicional del Valle del Río Cesar se evaluaron sistemas basados en los arbustos de L. leucocephala y bancos forrajeros de Gliricidia sepium; la pastura predominante fue Panicum maximum cv Mombaza en asocio con líneas de árboles de Eucalyptus melliodora y Samanea saman, dentro de un sistema orientado a la cría y el engorde de ganados cebuinos y sus cruces. En el Bajo Magdalena las praderas evaluadas estuvieron principalmente conformadas por Bothriochloa pertusa en asocio con P. máximum, el estrato secundario estuvo constituido por L. leucocephala y G. sepium y el nivel arquitectónico terciario de la pradera estuvo compuesto por árboles de S. saman. En el Piedemonte del Orinoco (departamento del Meta) se evaluaron ganaderías doble propósito, con sistemas forrajeros basados en Brachiaria decumbens y T. diversifolia, reconocidos por su tolerancia a la toxicidad por aluminio. Las Regiones lecheras de Boyacá y Santander fueron estudiados sistemas con la presencia de Cenchrus clandestinus en asocio a Trifolium repens y Sambucus peruviana en los territorios más altos de esta zona; en las secciones más bajas de la vertiente, el componente forrajero fue totalmente diferente y los forrajes de mayor presencia fueron B. decumbens y T. diversifolia. Se debe tener en cuenta, además, que las fincas estudiadas se encontraban en un proceso de reconversión productiva y ambiental, en donde no todas sus praderas estaban estructuradas como un SSP y no todas las fincas contaban con todos los sistemas de siembra que se mencionan a continuación: Sistema de monocultivo (SC), Arboles dispersos en praderas (AD), Setos forrajeros (SF) y Sistemas silvopastoriles intensivos (SSPi). Pero buscando ordenar la información de la mejor manera y realizando un bloqueo por el efecto propio del predio, se concibe la unidad experimental de este trabajo como la oferta y consumo diario encontrado en franjas o áreas asignadas por la rotación en potreros de los diversos sistemas de siembra, para de esta manera escalar la investigación de lo meramente descriptivo y proponer de manera humilde una comparación del desempeño productivo de los SSP. La oferta forrajera fue de 4.55 en SF sin diferencias con 4.12 del SSPi, pero mayor al 2.78 y 3.24 (kg/100 kg PV/día) de AD y SC respectivamente (P ˂ 0,05); los dos primeros sistemas ofertaron más de un 50% y un 45% de proteína cruda y cenizas respectivamente con relación a la oferta observada en los sistemas de AD y SC (P ˂ 0,05). Igual tendencia tuvo el consumo de proteína cruda, que fue de 352.30 en SF y 293.77 SSPi superiores a 141.36 y 151.99 (gr de PC/100 kg PV/día) de AD y SC respectivamente (P ˂ 0,05). El consumo de cenizas fue de 301.97 en SSPi y superior a 212.37, 206.24 y 258.11 (gr de Cenizas/100 kg PV/ día) en AD, SC y SF respectivamente (P ˂ 0,05). El consumo de grasa (gr de grasa /100 kg PV/día), tuvo una relación inversa con el consumo de proteína, siendo mayor en los AD y SC (P ˂ 0,05). El R2El coeficiente de determinación (0.0403) obtenido de la regresión encontrada entre el estimado de CMS por el aforo y el encontrado con Cornell Net Carbohydrate and Protein System (CNCPS) fue bajo y el cuadrado medio de error de predicción (CMEP=0.6849 (kg/100 kg PV/d)²) fue alto, surgiendo un enfoque diferente en la heurística de las metodologías, mutuamente complementarias para un rango de valores de máximos y mínimos en el consumo bovino de animales en pastoreo. El segundo experimento (Capítulo 3) consistió en estudiar el comportamiento ingestivo bovino encontrado en tres zonas ganaderas de importancia productiva para Colombia, en fincas donde se tienen consolidados SPP en casi toda la extensión de sus territorios. El primer sistema de producción evaluado fue la finca “Cien Años De Soledad” ubicada en el municipio de Rionegro, vereda el tablazo del departamento de Antioquia, el segundo sistema evaluado fue la “Hacienda Lucerna” ubicada en el norte de Valle Del Cauca, en el municipio de Bugalagrande y el tercer sistema fue la finca “Sinaí” ubicada en el municipio de Pailitas, en el departamento del Cesar. En esta evaluación del desempeño productivo de los hatos, se compararon animales estabulados y animales en pastoreo, estando los primeros en un modelo de evaluación individual del desempeño productivo de animales a los cuales se les suministró una dieta típica de un sistema silvopastoril y los segundos fueron animales pastoreando en las condiciones naturales y grupales propias de la especie. Se monitorearon las horas destinadas por los animales a las siguientes actividades (h/día) por 48 h consecutivas: consumo de forraje, rumia de pie, rumia estando acostados, descanso de pie y descanso estando acostados. Los datos registrados fueron analizados a través de un análisis de correspondencias. La actividad de consumo ocurrió generalmente en horas diurnas y fue a esta actividad a la que los animales dedicaron más tiempo (entre 7 a 10 h/día), representando el 35% su actividad diaria y registrando un consumo de 1.44, 0.713 y 0.490 Kg MS/animal/hora en los predios Cien años de soledad, Lucerna y Sinaí, respectivamente. Los animales tendieron a rumiar principalmente estando acostados durante las horas nocturnas con una consagración temporal promedio de 8 h, representado en el 30.5 % del tiempo. La rumia de pie se identifica como un mecanismo para acomodar el tamaño de partícula rápidamente, siendo este el patrón al que los animales dedicaron menos tiempo (1.3 h al día, que corresponden al 5.2% del tiempo). A la actividad de descanso de pie, los animales dedicaron 2 h/día, lo que corresponden al 9 % del tiempo total. El ritmo biológico del sueño bovino manifestado en el patrón de descanso estando acostados, se caracterizó por falta de respuesta a estimulo ambiental y a esta actividad los animales dedicaron 4.5 h o 19.5 % del tiempo diario. (Texto tomado de la fuente)The high demand for food to satisfy the accelerated population growth creates a great challenge for farmers, as they have to increase production on their farms without expanding the agricultural frontier and without increasing the adverse effects of these productions on the environment. Although the role of cattle ranching as an economic engine for rural communities is well known, and the development of small businesses in the agricultural sector is known to contribute to national economic growth, the inefficient use of resources and the lack of planning and business programming leaves in the panorama, cattle production systems in extensive grazing schemes, monoculture pastures and cattle ranching enterprises with high extractive capacity of the resources, high potential for environmental damage in the territory and with a cattle producer without collective conscience to stop the environmental deterioration caused. The integration of the forestry sector with the livestock sector, as is the case with silvopastoral systems (SSP), is an alternative to diversify production and improve the profitability of traditional cattle production systems in Latin America. The inclusion of forage diversity in animal diets and the different silvopastoral arrangements have reported thermal comfort and higher animal productivity, in contrast with those monoculture systems mentioned above; however, research on this subject is still insipient for Colombia. With the purpose of contributing to the knowledge of the multiple benefits that silvopastoral systems have on the increase of bovine productivity, the effect of SSP on forage supply, grazing consumption and ingestive behavior of bovine herds in different regions of Colombia was evaluated. This study was carried out in two stages. The first experiment (Chapter 2) consisted of evaluating the forage supply and cattle consumption in 17 demonstration farms of the "Sustainable Colombian Livestock Project" distributed in 5 ecoregions of Colombia. These cattle production systems were characterized by having been established for 2 years and using rotational grazing management with animal loads adjusted with the help of technicians from the CIPAV Organization and FEDEGAN, These were based on fenced areas of no more than 5,000 m2 , rest periods defined by the growth curve observed for forage in each zone and the conversations held with the producers. The livestock zones studied were: In the Coffee ecoregion and the Upper Cauca River Valley, systems with Tithonia diversifolia (hemsl Gray) and Leucaena leucocephala shrubs were evaluated. The predominant improved pasture was Cynodon plectostachyus, with dairy cattle production being the main economic orientation. In the traditional cattle raising region of the Cesar River Valley, systems based on L. leucocephala shrubs and Gliricidia sepium fodder banks were evaluated; the predominant pasture was Panicum maximum cv Mombaza in association with tree lines of Eucalyptus melliodora and Samanea saman, within a system oriented to the breeding and fattening of zebu cattle and their crossbreeds. In the Lower Magdalena, the grasslands evaluated were mainly composed of Bothriochloa pertusa in association with P. maxima, the secondary stratum was constituted by L. leucocephala and G. sepium and the tertiary architectural level of the grassland was composed of S. saman trees. In the Piedemonte del Orinoco (department of Meta), dual-purpose cattle ranches were evaluated, with forage systems based on Brachiaria decumbens and T. diversifolia, recognized for their tolerance to aluminum toxicity. In the dairy regions of Boyacá and Santander, systems were studied with the presence of Cenchrus clandestinus in association with Trifolium repens and Sambucus peruviana in the higher areas of this zone; in the lower sections of the slope, the forage component was totally different and the forages with the greatest presence were B. decumbens and T. diversifolia. It should also be taken into account that the farms studied were in a process of productive and environmental reconversion, where not all their pastures were structured as a SSP and not all the farms had all the planting systems mentioned below: Monoculture system (SC), Dispersed trees in pastures (AD), Forage hedges (SF) and Intensive silvopastoral systems (SSPi). However, in order to organize the information in the best way possible, and making a blockage due to the effect of the farm itself, the experimental unit of this work is conceived as the daily supply and consumption found in strips or areas assigned by the rotation in paddocks of the different sowing systems, in order to scale up the research from the merely descriptive and humbly propose a comparison of the productive performance of the SSP. The forage supply was 4.55 in SF without differences with 4.12 of SSPi, but higher than 2.78 and 3.24 (kg/100 kg PV/day) of AD and SC respectively (P ˂ 0.05); the first two systems offered more than 50% and 45% of crude protein and ash respectively in relation to the supply observed in the AD and SC systems (P ˂ 0.05). The same trend had the crude protein intake, which was 352.30 in SF and 293.77 SSPi higher than 141.36 and 151.99 (g CP/100 kg PV/day) of AD and SC respectively (P ˂ 0.05). Ash intake was 301.97 in SSPi and higher than 212.37, 206.24 and 258.11 (gr of Ash/100 kg BW/day) in AD, SC and SF respectively (P ˂ 0.05). Fat intake (gr of fat/100 kg PV/day), had an inverse relationship with protein intake, being higher in AD and SC (P ˂ 0.05). The R2The coefficient of determination (0.0403) obtained from the regression found between the CMS estimate by gauging and that found with Cornell Net Carbohydrate and Protein System (CNCPS) was low and the mean square of prediction error (CMEP=0.6849 (kg/100 kg BW/d)²) was high, emerging a different approach in the heuristics of the methodologies, mutually complementary for a range of values of maxima and minima in bovine consumption of grazing animals. The second experiment (Chapter 3) consisted of studying the bovine intake behavior found in three cattle raising zones of productive importance for Colombia, in farms where SPP are consolidated in almost all the extension of their territories. The first production system evaluated was the farm "Cien Años De Soledad" located in the municipality of Rionegro, vereda el tablazo in the department of Antioquia, the second system evaluated was the "Hacienda Lucerna" located in the north of Valle Del Cauca, in the municipality of Bugalagrande and the third system was the farm "Sinai" located in the municipality of Pailitas, in the department of Cesar. In this evaluation of the productive performance of the herds, stabled animals and grazing animals were compared, the former being in a model of individual evaluation of the productive performance of animals to which a typical diet of a silvopastoral system was provided and the latter were animals grazing in the natural and group conditions typical of the species. The hours spent by the animals in the following activities (h/day) were monitored for 48 consecutive hours: forage consumption, standing rumination, lying rumination, standing rest and lying rest. The recorded data were analyzed by correspondence analysis. Consumption activity generally occurred during daylight hours and it was to this activity that the animals dedicated more time (between 7 to 10 h/day), representing 35% of their daily activity and registering a consumption of 1.44, 0.713 and 0.490 kg DM/animal/hour in the farms Cien años de soledad, Lucerna and Sinai, respectively. The animals tended to ruminate mainly while lying down during the night hours with an average time commitment of 8 h, representing 30.5 % of the time. Standing rumination is identified as a mechanism to accommodate particle size quickly, being this the pattern to which the animals dedicated less time (1.3 h per day, corresponding to 5.2% of the time). To the standing resting activity, the animals dedicated 2 h/day, corresponding to 9 % of the total time. The biological rhythm of bovine sleep manifested in the pattern of resting while lying down, was characterized by lack of response to environmental stimuli and to this activity the animals dedicated 4.5 h or 19.5 % of the daily time.MaestríaMagíster en Ciencias AgrariasAnálisis Descriptivo y ComparativoSistemas silvopastorilesProducción Animal y Gestión AmbientalÁrea Curricular en Producción Agraria Sostenible140 páginasapplication/pdfspaUniversidad Nacional de ColombiaMedellín - Ciencias Agrarias - Maestría en Ciencias AgrariasFacultad de Ciencias AgrariasMedellín, ColombiaUniversidad Nacional de Colombia - Sede Medellín630 - Agricultura y tecnologías relacionadas::636 - Producción animal590 - Animales::599 - MamíferosPlantas forrajerasAlimentos para aniamalesFeedsForage plantsBotanical composition of the pasturesForage offerGrazing bovinesProductivityVoluntary intakeIntensive silvopastoral system (SSPi)EthogramBovinos en pastoreoComposición botánica de las praderasConsumo voluntarioOferta de forrajeProductividadSistema silvopastoril intensivo (SSPi)EtogramaEfecto de los sistemas silvopastoriles en la producción forrajera, consumo y comportamiento ingestivo bovino en ganaderías colombianasEffect of silvopastoral systems on forage production, dry matter intake and intake bovine behavior in Colombian livestockTrabajo de grado - Maestríainfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/acceptedVersionTexthttp://purl.org/redcol/resource_type/TMColombiaRedColLaReferenciaAlmeida, R.G. de, Barbosa, R.A., Zimmer, A.H., Kichel, A.N., et al., 2019. 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Computers and Electronics in Agriculture, 136. https://doi.org/10.1016/j.compag.2017.02.021Ganaderia Colombiana SostenibleFEDEGANCIPAVAdministradoresBibliotecariosEstudiantesGrupos comunitariosInvestigadoresMaestrosCC-LICENSELicencia Sebastian Montoya U.pdfLicencia Sebastian Montoya U.pdfapplication/pdf668926https://repositorio.unal.edu.co/bitstream/unal/84617/5/Licencia%20Sebastian%20Montoya%20U.pdf89d2acda45d77bd41fa2c6c7ccab3412MD55LICENSElicense.txtlicense.txttext/plain; charset=utf-85879https://repositorio.unal.edu.co/bitstream/unal/84617/3/license.txteb34b1cf90b7e1103fc9dfd26be24b4aMD53ORIGINAL1039451365.2023.pdf1039451365.2023.pdfTesis de Maestría en Ciencias Agrariasapplication/pdf3647471https://repositorio.unal.edu.co/bitstream/unal/84617/4/1039451365.2023.pdf41af728592bbeed985494a4d6df9d836MD54THUMBNAIL1039451365.2023.pdf.jpg1039451365.2023.pdf.jpgGenerated 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