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The effect of grain sorghum silage mixed with urea-molasses-sulfur, cotton seed cake and fish meal supplemented during the dry season to dual purpose cattle for milk yield in the Sinu Valley (Colombia)Efecto de la suplementación con ensilaje de millo adicionado con urea-melaza-azufre, semilla de algodón y harina de pescado sobre la producción de leche en vacas doble propósito durante la época seca en el Valle del Sinú
(Corporación Colombiana de Investigación Agropecuaria (Agrosavia), 2008)
In the Sinu Valley region (Cordoba, Colombia), 12 dual purpose Holstein × Cebú cows in the first third of lactation were used to evaluate the response of supplementation sorghum (Sorghum vulgare) silage mixed with urea-molasses-sulfur, whole cottonseed and fish meal on milk yield over 60 days period. Treatments were: T1 = silage-0.100 kg of urea-0.250 kg of molasses and 0.004 kg of sulfur. T2 = silage-1.5 kg of ...
Effect of plant growth-promoting rhizobacteria (PGPR) associated to Pennisetum clandestinum in the altiplano cundiboyacenseEfecto de bacterias promotoras de crecimiento vegetal (PGPR) asociadas a Pennisetum clandestinum en el altiplano cundiboyacense
(Corporación Colombiana de Investigación Agropecuaria (Agrosavia), 2013)
Pennisetum clandestinum (kikuyo) is a common pasture in the altiplano cundiboyacense silvopastoral systems, which possesses high nutritional value. Therefore, studies to improve the production process in both economic and environmental terms are very important. The role of inoculation with plant growthpromoting bacteria was evaluated on the growth of kikuyu grass. The 4K and 5B strains were identified, through amplification ...
Resúmenes de tesis. Área Temática: Fisiología y Nutrición Animal
(Corporación Colombiana de Investigación Agropecuaria (Agrosavia), 2001)
Aislamiento, conservación y evaluación de la cinética de crecimiento y actividad celulolítica de aislados de Fibrobacter succinogenes de bovinos en pastoreo de gramíneas tropicalesMarta Liliana Arcos, Faisury Ossa y Tito E. Diaz MuñozEn este estudio se realizó el aislamiento de Fibrobader succinogenes, una de las principales bacterias celulolíticas ruminales de bovinos en pastoreo en praderas de Braquiaria (Brachiaria ...
Response of Bothriochloa saccharoides ([Sw.] Rydb.) grass to different simulated shade intensities in the warm valley of Magdalena in the Department of Tolima (Colombia)Respuesta del pasto Bothriochloa saccharoides ([Sw.] Rydb.) a diferentes intensidades de sombra simulada en el valle cálido del Magdalena en el Tolima (Colombia).
(Corporación Colombiana de Investigación Agropecuaria (Agrosavia), 2010)
Silvopastoral systems must withstand shading and have good nutritional quality. This study aimed to analyze dry matter production, agronomic indicators and nutritional quality in Bothriochloa saccharoides grass, under simulated shade conditions: 30%; 50% and 0% sunlight, the last acting as control. This study was carried out at the "La strella” farm, located in the municipality of Venadillo, Tolima. Biomass production ...
Variability and additive, non additive and total genetic predictions in the multibreed, Sanmartinero-Cebu beef cattle herd in La Libertad Research CenterVariabilidad y predicciones genéticas aditivas, no aditivas y totales para Ia producción de ganado de carne en el rebaño multirracial Sanmartinero-Cebú de La Libertad.
(Corporación Colombiana de Investigación Agropecuaria (Agrosavia), 2001)
Calf growth data from the Sanmartinero-Zebu multibreed herd located at the La Libertad Research Center were used to obtain estimations of additive genetic ratios (heritabilities), non additive genetic atios (interactibilities), and additive, non additive, direct and maternal genetic correlations for birth weight, weaning weight (240 d), and postweaning gain (240 to 480 d). Additive and non additive genetic values were ...
Models for growth digestion and lactation in bovineModelos de crecimiento, digestión y lactancia en bovinos
(Corporación Colombiana de Investigación Agropecuaria (Agrosavia), 2001)
The methods commonly used to predict animal behavior as a function of feeding management, are in a process of change. The systems currently used for estimating the animal requirements based on static algebraic equations have begun to be replaced by dynamic simulation models capable of characterizing animal response for a much wider range of conditions to that used in traditional systems. In this article models are ...
Model to improve the livestock and crop production systems in Valle del Cesar, ColombiaModelo de optimización para los sistemas de producción agropecuarios de la microrregión Valle del Cesar, Colombia
(Corporación Colombiana de Investigación Agropecuaria (Agrosavia), 2003)
Colombia is going through a dynamic research and technology transfer effort in order to improve its livestock enterprise.Animal production systems of twenty-two ecoregions in the lowland tropics are being characterized for ex-ante analysis to define technological alternatives.The Valley of Cesar in northern Colombia is a micro-region where agriculture has been its traditional production system, but now, 80% of the land ...
Evaluation of grasses and legumes as cover and their influence on weed control in the establishment of citrus in the piedmont of MetaEvaluación de gramíneas y leguminosas forrajeras como coberturas y su influencia en el control de malezas en el establecimiento de cítricos en el piedemonte del Meta.
(Corporación Colombiana de Investigación Agropecuaria (Agrosavia), 2011)
In order to develop sustainable management systems for growing citrus in the tropics, the behavior of two species of legumes and four grasses were evaluated and compared with mechanical and chemical control in high terrace conditions of the Meta piedmont. The trial was established Desmodium ovalifolium cv. Maquenque, Paspalum notatum, Brachiaria dictyoneura cv. Llanero, Arachis pintoi CIAT 18744, Brachiaria brizantha ...
Diagnosis and molecular characterization of natural cattle infections produced by Trypanosoma spp. in the Colombian Orinoco regionDiagnóstico y caracterización molecular de infecciones naturales por Trypanosoma spp. en bovinos de la Orinoquía Colombiana
(Corporación Colombiana de Investigación Agropecuaria (Agrosavia), 2010)
Because of the limitations of direct methods for the diagnosis of trypanosomes in small quantities, molecular methods which allow identification of the species with a small amount of parasite DNA were analyzed. A study was conducted at the Carimagua Experimental Station, located in the flat high plains of Orinoco Colombia. From 500 'Sanmartinero' and 'Zebú' breeding cattle, native to the area, 70 clinically healthy ...
Effect of nitrogen fertilization on nitrous oxide and methane dynamics in Brachiaria humidicola (Rendle) SchweickerdtEfecto de la fertilización nitrogenada en la dinámica del óxido nitroso y metano en Brachiaria humidicola (Rendle) Schweickerdt.
(Corporación Colombiana de Investigación Agropecuaria (Agrosavia), 2011)
Livestock activities cause a significant impact on the environment due to the release of N into the soil, which in turn results in nitrification and the emissions of greenhouse gases (GHG). At Corpoica’s Turipaná Research Center (Cereté, Colombia), we evaluated three different genotypes of B. humidicola (CIAT 16888, CIAT 26159, and CIAT 679) with three levels of nitrogen fertilization application (0, 150, and 300 kg ...