Durango State has the denomination of origin for production mezcal, which is made from Agave durangensis, mainly in an artisanal way; therefore, differences fermentation process affect quality final product. The main objective present study was to evaluate diversity culturable yeasts involved and semi-technified mezcal Durango. Three distilleries with different processes were monitored at stages (beginning, mid-fermentation, end fermentation) spring summer seasons. A greater found distillery...

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In this study, four experimental treatments were evaluated: (T1) alfalfa hay + concentrate, (50:50%, DM); (T2) Leucaena leucocephala (30:20:50%, (T3) prickly pear and (T4) (30:10:10:50%, DM). NH3-N concentrations in T2 T4 decreased when replaced 20 10 %, respectively. Treatments did not affect the concentration of total volatile fatty acids (TVFA) between T3 (p>0.05); while among T1 different (P<0.05). showed a reduction 25.5 % methane production compared to T1(p <...

In this study, four experimental treatments were evaluated: (T1) alfalfa hay + concentrate, (50:50%, DM); (T2) Leucaena leucocephala (30:20:50%, (T3) prickly pear and (T4) (30:10:10:50%, DM). NH3-N concentrations in T2 T4 decreased when replaced with 20 10%, respectively. Treatments did not affect the concentration of total volatile fatty acids (TVFA) between T3 (p > 0.05), while among T1 different < 0.05). showed a reduction 25.5% methane production compared to The lowest protozoa observed...

Methylthionine Chloride (MTC), commonly known as methylene blue, is a substance widely used in medical and clinical industry indicator, various diseases treatment diagnostic. When MTC discarded out of the organism, it becomes residue which ends wastewater plants not treated or removed properly because has synthetic origin, providing with stability chemical structure difficult to break. In present work, was through advanced oxidation processes (AOPs) photolysis heterogeneous photocatalysis,...

Objetivo. Evaluar las propiedades fisicoquímicas, digestibilidad In vitro y aparente de nitrógeno en materia fecal orina cerdos un alimento extrudido usando frijol (Phaseolus vulgaris L.) como sustituto harina soya. Materiales métodos. Se estandarizó el proceso extrusión para dos formulaciones (Pinto Saltillo), maíz (Cafime) soya a diferentes proporciones: 20/67/13% 30/60/10%, respectivamente. Las muestras se procesaron extrusor monotornillo 120-150°C 18-22% contenido humedad. fisicoquímicas...

Satellite images of the grassland area in Durango México were obtained altitude, slope, average annual temperature, precipitation, type vegetation, soil, normal vegetation index, percentage herbaceous and bares order to relate them with grasshopper density population (GDP) surveyed 35 sampling sites from June November 2003 study area. A stepwise regression analysis was performed most abundant species Phoetaliotes nebrascensis (Thomas), Melanoplus lakinus (Scudder) Boopedon nubilum (Say) data...

Se evaluaron los cambios estacionales en consumo, composicion quimica y degradabilidad ruminal de la dieta seleccionada por novillos un pastizal mediano el norte Mexico. Para obtencion las muestras se emplearon cuatro 􏰀stulados del rumen (350 ± 3 kg PV). Los datos sometieron a analisis varianza (ANDEVA) para diseno bloques completos al azar. menores consumos materia seca (MS) registraron invierno (4.43 d−1) primavera (4.54 (p > 0.05). El mayor contenido proteina cruda (PC) (10.49 %) mas alta...

Melanoplus lakinus (Scudder) is one of the most abundant grasshopper species in Mexican state Durango. This covers a wide semi-desert region large grassland areas with much biotic diversity, specific orography, and contrasting environmental factors that may affect genetic structure species. Genetics populations from seven Durango locations different characteristics were assessed. The had plant diversities (ranging an H' 1.34 to 3.04) proportions grass. They also have orographic conditions....

Accurately determining the spatial distribution of an insect is crucial for making effective decisions and efficiently controlling their populations. This study aimed to determine population Spodoptera frugiperda (J. E. Smith 1797) (Lepidoptera: Noctuidae) larvae in corn plots near City Durango, Mexico. A total 30 corn-cultivated were sampled. In each plot, 5 points selected (5 coins method), where 10 consecutive plants these phenological stages V4 V10 checked presence recorded. Statistical...

Ants are one of the highly successful and abundant groups, whereof about 16,598 valid species in 290 genera have been described so far, whereas global trends predict a total 21,847 574 genera. The use functional groups has helped to identify general patterns structure communities, make comparisons between community ecosystems. aim this work was analyze ants ecoregions Durango, Mexico, which North American deserts, southern semi-arid elevations, warm-dry forests temperate sierras. Generalist...