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Mostrando ítems 134-153 de 376
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Effects of cashew nut-shell extract and monensin on microbial fermentation in a dual-flow continuous culture
(2023-09-09)The 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. ... -
Effects of choline chloride on the ruminal microbiome at 2 dietary neutral detergent fiber concentrations in continuous culture
(2022)Our objective was to evaluate the effects of unprotected choline chloride (Cho) on the ruminal microbiome at 2 dietary neutral detergent fiber (NDF) concentrations. We hypothesized that the effects of Cho on ruminal ... -
Effects of commercial and farm-made inoculants on the chemical composition and fermentation of kikuyu grass silages
(2022-03)Ensiling allows for more efficient pasture utilization in kikuyu (Cenchrus clandestinus Hochst. ex Chiov.)-based forage systems. However, the chemical composition of kikuyu challenges this process. Additives can improve ... -
Effects of exogenous amylolytic or fibrolytic enzymes inclusion on in vitro fermentation of lactating dairy cow diets in a dual-flow continuous-culture system
(2023)The objective of this study was to determine the effects of including exogenous amylolytic or fibrolytic enzymes in a diet for high-producing dairy cows on in vitro ruminal fermentation. Eight dual-flow continuousculture ... -
Effects of lactic acid-producing bacteria as direct-fed microbials on the ruminal microbiome
(2022)The objective of this study was to evaluate ruminal microbiome changes associated with feeding Lactobacillus plantarum GB-LP1 as direct-fed microbials (DFM) in high-producing dairy cow diets. A dual-flow continuous culture ... -
Effects of neutral detergent fiber digestibility estimation method on calculated energy concentration of canola meals from 12 Canadian processing plants
(2021)Our aim was to determine whether the method used to estimate truly digestible neutral detergent fiber (tdNDF) affects calculated concentrations of total digestible nutrients (TDN1x) and net energy of lactation (NEL3x) of ... -
Effects of partially replacing dietary corn with molasses, condensed whey permeate, or treated condensed whey permeate on ruminal microbial fermentation
(2022)Corn is a feedstuff commonly fed to dairy cows as a source of energy. The objective of this study was to evaluate whether partially replacing dietary corn with molasses or condensed whey permeate, in lactating dairy ... -
Effects of partially replacing dietary corn with sugars in a dual-flow continuous culture system on the ruminal microbiome
(2023)The objective of this study was to evaluate the effects of feeding sugars as a replacement for starch on the ruminal microbiome using a dual-flow continuous culture system. Four periods of 10 days each were conducted with ... -
Effects of replacing magnesium oxide with calcium-magnesium carbonate with or without sodium bicarbonate on ruminal fermentation and nutrient flow in vitro
(2022)The objective of this study was to evaluate the effects of replacing magnesium oxide (MgO) with calcium-magnesium carbonate [CaMg(CO3)2] on ruminal fermentation with or without the addition of sodium bicarbonate (NaHCO3). ... -
Effects of supplemental source of magnesium and inclusion of buffer on ruminal microbial fermentation in continuous culture
(2021-07)Magnesium oxide (MgO) is the most common supple mental source of Mg for dairy cows and a proven ruminal alkalizer when supplemented above NRC (2001) recommendations. However, overfeeding MgO may increase feeding costs, ... -
Effects of Toasting Time on Digestive Hydrolysis of Soluble and Insoluble 00‑Rapeseed Meal Proteins
(2017-02-11)Thermal damage to proteins can reduce their nutritional value. The effects of toasting time on the kinet ics of hydrolysis, the resulting molecular weight distribu tion of 00-rapeseed meal (RSM) and the soluble and insolu ... -
Effects of unprotected choline chloride on microbial fermentation in a dual-flow continuous culture depend on dietary neutral detergent fiber concentration
(2021-03)Choline is usually supplemented as ruminally protected choline chloride to prevent its degradation in the rumen, but the effects of unprotected choline on ruminal fermentation are unclear. Some research indicates a ... -
Eficacia de un sustituto de calostro sobre la transferencia de inmunidad pasiva en terneras
(2021)Introducción. Los sustitutos de calostro han aumentado su popularidad en Costa Rica como una alternativa al calostro de mala calidad, reservas limitadas, o para romper el ciclo de transmisión de ciertas enfermedades ... -
Enfermedades metabólicas y su impacto en la productividad del ganado lechero
(2015)En este artículo se resumen los hallazgos obtenidos de una serie de proyectos de investigación sobre enfermedades metabólicas en ganado lechero. Estos proyectos fueron adscritos a la Vicerrectoría de Investigación de la ... -
Enriquecimiento proteico de dos especies forrajeras y cáscara de piña por medio de fermentación en estado sólido
(2020)Introducción. La fermentación en estado sólido es una biotecnología que permite mejorar la calidad nutricional de forrajes y subproductos agrícolas para poder ser utlizados en la alimentación de rumiantes. Objetivo. ... -
Ensilaje
(2018-11-01)Preservación de forrajes verdes por medio de una fermentación ácida que previene su descomposición. La técnica de ensilaje se utiliza para guardar alimento para el ganado y utilizarlo en el momento que se requiera. Dependiendo ... -
El ensilaje como solución a la escasez de forraje
(2015-06)En la actualidad, el productor ha tenido que cubrir la escasez de forraje con otras fuentes, provenientes de procesos agroindustriales como las cáscaras, rastrojos, tubérculos, subproductos de cervecería, del trigo, de ... -
Establecimiento de tres indicadores de eficiencia en el uso de agua para lavado en instalaciones lecheras en Zarcero, Costa Rica
(2021-02-08)Introducción. El agua es el recurso más importante en todo el planeta y existe un claro reconocimiento de que los efectos de los sistemas de producción pecuaria y los patrones de consumo sobre este recurso, deben ...