Artículo Científico

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3D modeling with the ThreeJS Framework of the Colonial Temple of Chuquinga Aymaraes – Perú
(Universidad Nacional Micaela Bastidas de Apurímac, 2019-09-25) Pimentel Palomino, Michael Alexander; Mamani Vilca, Ecler; Mollocondo Flores, Wilson John
This research has the purpose of modeling in 3D of the Colonial Temple of Chuquinga, to prove the rendering time in mobile devices, the investigation is applied, with an explanatory level and an experimental design where the rendering time with the frequency was evaluated of images (FPS, obtaining the frequency of images (FPS), the average is 52.29 FPS, highlighting the most influential GPU, that is, increases the frequency of images (FPS) when the central clock is greater than 500 Mhz in all mobile devices that have an optimum level, while in basic level devices when GPM Mhz decreases, the frequency of images (FPS) decreases, however, it does not cause distortion in animations and textures. The ThreeJS library was used to create 3D objects, 3ds Max for the modeling of temple walls and WebGL for final rendering
A Comparison of Cultivation Techniques NFT-I, FR and Soil: An IoT Monitoring Approach
(Proceedings of International Conference on Data Science and Applications, 2026-03-13) Ibarra, Manuel J.; Alcarraz, Edgar W.; Tapia, Olivia; Ponce, Yalmar; Calderon Vilca, Hugo D.; Quispe, Carlos R.
Hydroponics is an agricultural method where plants grow with water and mineral nutrient solutions. For a good production of vegetables, it is essential to keep within an optimal range the values of the variables that influence growth: temperature, pH, electrical conductivity and frequency of irrigation. This article compares three cultivation sub-systems NFT-I, FR and Soil. Additionally, it describes the IoT computing for monitoring the principal variables: temperature, pH, electrical conductivity and frequency of irrigation. This prototype allows notifying the farmer about the current status of each variable through Telegram social network and a Web site. The methodology was as follows: start planting the same day in the three sub-systems, controlling the values of the variables obtained by the sensors, and notifying the farmer when the values exceed the established limits, then the weight, the number of leaves, length and width were measured. The results have shown that this system can reduce electricity consumption by 97.9%, furthermore, use green computing approach with solar panel energy supply. Finally, lettuce production was good, and in terms of weight, the number of leaves, length and width, followed the relationship FR > NFT-I > Soil.
Activated polymeric materials for phosphorus removal in aqueous medium: Study of kinetics and adsorption isotherm
(Results in Engineering, Elsevier, 2026-03-12) Kari Ferro, Aydeé; Solano Reynoso, Aydeé M.; Alvarez Arias, Celinda; Echegaray Peña, Nora Gladis; Choque Quispe, David
Excess dissolved phosphorus can cause eutrophication of water bodies. Various porous materials have been proposed to reduce P levels to acceptable levels. The study aimed to evaluate the phosphorus adsorption potential in aqueous media at pH 5, 6, and 8 through citric acid esterified cellulose nanocrystals (NCC), NaCl activated clay (AA), and atomized Nostoc sphaericum hydrocolloid (NS-AH). ζ potential, particle size, zero charge point, total inorganic carbon, TGA, DSC, XRD, and FTIR analysis of the adsorbent materials were determined. The adsorption capacity of P was 16.17, 13.45, and 9.25 mg/g, and removal up to 89.44, 70.35, and 51.66 % by NCC, AA, and NS-AH respectively from 20 ppm P solution. The PFO, PSO, and Intraparticle Diffusion kinetic models were studied, indicating high adsorption rate for AA and NCC during the first 20 min. The study of Langmuir, Freundlich, Redlich-Peterson, Temkin, and Dubinin Radushkevich isotherms showed that the adsorbents present heterogeneous surface, high porosity, and affinity for P at pH 8 in the order NCC > AA > NS-AH and that adsorption is spontaneous and favorable, governing chemisorption processes. The proposed materials, mainly NCC and AA, present high potential for P removal in aqueous media.
Activation of caspase-3/7, an apoptotic-related marker, during incubation and cryopreservation of alpaca (Vicugna pacos) spermatozoa
(Reproduction in Domestic Animals, 2026-03-12) Segura, Carlos; La Rosa, José; Báez, Luis; Gómez Quispe, Oscar E.; Evangelista Vargas, Shirley; Morrell, Jane M.; Santiani, Alexei
Caspases are crucial mediators of programmed cell death (apoptosis). Apoptosis can occur in spermatozoa during spermatogenesis or epididymal transit, as well as in ejaculated spermatozoa. A high proportion of apoptotic sperm would be a poor indicator of the freezability of a raw seminal sample. Alpaca spermatozoa are notoriously difficult to freeze successfully. Therefore, the objectives of this study were to study caspase activation during incubation (37°C) of fresh alpaca spermatozoa, as well as before and after cryopreservation, to gain some insight into the mechanisms behind the vulnerability of alpaca spermatozoa. Eleven sperm samples were incubated for 4 h at 37°C (Study 1), and 23 samples were frozen using an automated system (Study 2). Caspase-3/7 activation was assessed at 0,1,2,3, and 4 h in samples incubated at 37°C (Study 1); and before/after cryopreservation (Study 2) using CellEvent™ Caspase 3/7 Green Detection Reagent and flow cytometry. The proportions of alpaca spermatozoa with caspase-3/7 activated increased (p < 0.05) after 3–4 h of incubation at 37°C; however, caspase activation was similar before and after cryopreservation (36.2 ± 11.2% vs. 36.6 ± 33.7%, p > 0.05). The high standard deviation found after freezing could be explained by the existence of two subpopulations: one subpopulation where caspase-3/7 activation decreased during cryopreservation (from 36.6 ± 9.1% to 1.5 ± 2.2%), and the other subpopulation where caspase-3/7 activation increased after cryopreservation (from 37.7 ± 13.0% to 64.3 ± 16.7%). In conclusion, after 3–4 h of incubation, caspase-3/7 activation increased in fresh alpaca sperm, whereas cryopreservation affects alpaca sperm samples in different ways.
Agente Inteligente con reconocimiento de voz usando Lógica Difusa para mejorar el proceso de búsqueda de libros en la Biblioteca Central de la UNAMBA
(Universidad Nacional Micaela Bastidas de Apurímac, 2019-09-25) Hurtado Mendoza, Nilton Brayaam; Cari Incahuanaco, Francisco
El principal propósito de este trabajo de investigación, ha sido el desarrollo de una aplicación para contribuir al proceso de búsqueda de libros en la Biblioteca Central de la Universidad Nacional Micaela Bastidas de Apurímac, de tal forma que pueda ayudar al bienestar de los universitarios mediante la utilización de una herramienta que permita realizar busquedas de libros haciendo uso del reconocimiento de voz y la aplicación de la Lógica Difusa que tiene el experto humano que viene a ser el bibliotecario, transferida a la maquina mediante reglas de prioridad al momento de realizar dicho proceso de búsqueda de libros. Mediante la utilziacion de tecnologías para el desarrollo de software como: la practica ágil SCRUM, Lenguaje de programación C#, framework .NET, Jquery y gestor de base de datos MySql.
An IoT Solution to Detect Overheated Idler Rollers in Belt Conveyors
(International Journal of Advanced Computer Science and Applications, 2026-03-12) Ibarra-Cabrera, Manuel J.; Guevara Rios, Jaime; Vargas Ovalle, Dennis; Aquino Cruz, Mario; Calderon Vilca, Hugo D.; Ochoa, Sergio F.
It is common knowledge that mechanical systems need oversight and maintenance procedures. There are numerous prevalent operation monitoring techniques, and in the era of IoT and predictive maintenance, it is possible to find multiple solutions to supervise these systems. This article describes the design and implementation of a low-cost system, which use an IoT approach to detect overheated idlers in conveyors belt in mining facilities. The system involves the use of temperature sensors, coordinately with heat map image sensors. The users (i.e., mining operators) can monitor overheated idlers in the whole conveyor belt, making on-demand queries using Telegram or a website, and also receiving autonomous warnings. Prototypes of this system were installed on a conveyor belt at a construction materials manufacturing company, and also in a copper mining company, both located in Apurimac, Peru. The usability and usefulness of the system were evaluated by 20 experts in maintenance and operation of conveyor belts, who filled the questionnaire proposed by TAM (Technology Acceptance Model). The results show that 91% of them consider the system useful for detecting the overheating of idlers in a conveyor belt, and 93% of them considers the solution as easy to use.
Análisis de Estructura en Tablas y Gráficos en Tesis de la UNAMBA durante 2016 a 2019
(Universidad Nacional Micaela Bastidas de Apurímac, 2020-12-12) Mollocondo Flores, Wilson John; Dávila Huacoto, Leonardo; Gauna Chino, Gregorio
El presente trabajo realiza un análisis del cumplimento de la estructura que debe tener las tablas, así como los tipos de gráficos usados en tesis elaboradas entre el 2015 a 2019 en las diferentes carreras de la Universidad Nacional Micaela Bastida de Apurímac (UNAMBA). Se evaluaron en total 35 tesis. En más del 75% de tablas y gráficos no se realiza una adecuada numeración, el enuncia de los titulo no cumplen con los criterios de orden, claridad y ser breve. En el 51.8% de los casos se uso el gráfico de barras ya sea para representar variables cualitativas (28.1%) o cuantitativas (23.7%); los gráficos que permiten representar variables cuantitativas como histograma, diagrama de cajas, dispersión son pocas veces usadas; es decir las carreras relacionadas a ingenierías usan gráficos para representar variables cualitativas, más no gráficos para representar variables cuantitativas
Analysis of alpaca (Vicugna pacos) cria survival under extensive management conditions in the high elevations of the Andes Mountains of Peru
(Small Ruminant Research, 2026-03-13) Gómez Quispe, O.E.; Rodríguez, E.L.; Benites, R.M.; Valenzuela, S.; Moscoso Muñoz, J.; Ibañez, V.; Youngs, C.R.
In the Andes Mountains, alpaca rearing is the main economic activity of many families. One of the factors that affects the economic viability of this breeding activity is the mortality of offspring. The objective of this investigation was to analyze factors that influence the probability of survival of alpaca crias raised under extensive management conditions in the high elevations of the Andes Mountains in Peru. The study involved 100 crias born during a normal calving season that were monitored from birth to 12 weeks of age. Mortality of crias was recorded daily whereas body weight and other variables were recorded weekly. Cria survival was estimated using the Cox proportional hazard regression. Crias that never showed clinical signs of disease had a higher (P = 0.001) probability of survival (93.9 %) than crias with visible signs of disease (5.6 %). Crias with a heavy birth weight (exceeding 7.13 kg) had a greater (P = 0.001) probability of survival than those born with a moderate (80.6 %) or low birth weight (52.6 %). Survival of crias was not affected by sex (P = 0.303) or fleece color (P = 0.361). The most important factors that influenced the survival of the crias were clinical health status (P < 0.001) and birth weight (P = 0.001). These results highlight the importance of cria health care management during the first six weeks of life. More vigilant observation of cria health during this time could reduce clinical disease and improve cria survival, thereby improving the profitability of alpaca producers through the reduction of cria death losses.
Analysis of the Corn Dehydration Process (Zea Mays) in a Fluidized Bed Dryer
(Universidad Nacional Micaela Bastidas de Apurímac, 2019-09-25) Fernandez Ayma, Alfredo
The present work was developed in the Department of Apurímac, Province of Abancay, in the Unitary Operations Labora-tory of the Professional Academic School of Agroindustrial Engineering. The main objective of the research was to determi-ne which mechanical elements influence the drying time. The problem in the dryers is the consumption of energy therefore the fans that drive the air are incorporated to reduce drying time and also increases the turbulence of the air but the expen-diture of the electric power in higher, the research was developed to optimize the drying time in a fluidized bed dryer, JAR-CON, Model SLFT-60-240X, the method used for the determination of humidity is AOAC (2005) and the design applied was the complete random block (22 * 3) to evaluate the variables of answers, manipulating two factors such as the fan and ex-tractor. The most important conclusions were, the shortest drying time resulted with the auxiliary equipment of the fan and extractor reaching a temperature of 36.9 oC with an average time of 14.7 hours, with the equation exponentially with a co-rrelation coefficient of R2 of 0.9488 and secondly is when the fan operates at a temperature of 35.1 oC with a time of 16.8 hours with R2 of 0.9388
Aplicación de un Sistema de Información en N-Tier para el departamento de Farmacia del Hospital Regional Guillermo Díaz de la Vega Nivel II-2, 2019
(Universidad Nacional Micaela Bastidas de Apurímac, 2020-03-20) Huayllani Aguirre, Walter Jhon; Rojas Enriquez, Hesmeralda
El presente trabajo de investigación tuvo como objetivo implementar un sistema de información N-Tier en la farmacia del Hospital Regional Guillermo Díaz de la Vega (HRGDV), para reducir el tiempo de procesamiento de recetas médicas y para mejorar la gestión del stock de medicamentos con el fin de garantizar su disponibilidad. La evaluación se realizó bajo dos perspectivas: evaluación cualitativa y cuantitativa. Para la primera, se utilizaron los criterios de la ISO 25000 con el propósito evaluar la calidad del sistema bajo los atributos: adecuación funcional, completitud funcional y usabilidad, todas ellas fueron evaluadas mediante encuesta y se determinó que el sistema ejecuta todas las tareas requeridas, respeta los parámetros programados y el usuario puede utilizar el sistema y para la segunda, se evaluó el tiempo de procesamiento de información de recetas, comparando el software SISMED 2.1.0 (actualmente usado, tiempo promedio 277 seg.) versus el sistema de información de N-Tier (tiempo promedio 17 seg.), se aplicó el test estadístico T-Pareado para determinar si existe diferencia significativa en el tiempo empleado para procesar recetas y se obtuvo un valor T teórico (2 colas) de 1.42 y un T experimental de -50.39 por lo que se demuestra estadísticamente que el sistema en N-Tier reduce el tiempo de procesamiento de recetas. Además, se desarrolló el módulo de disponibilidad de stock de medicamentos e insumos médicos, según los requisitos establecidos por DIGEMID, se evaluó la función programada en el sistema de N-Tier mediante comparación de un cálculo manual (Excel) con la finalidad de evaluar si el sistema responde a los requisitos de DIGEMID, los resultados obtenidos en la hoja de Excel
Aplicación móvil para el intercambio de libros en la Escuela Académico Profesional de Ingeniería Informática y Sistemas
(Universidad Nacional Micaela Bastidas de Apurímac, 2020-12-12) Montalvo Navarro, Edwin Ramiro; Aquino Cruz, Mario
El costo de adquisición de libros originales durante la formación académica universitaria en la región de Apurímac - Perú es muy elevado, los libros hacen más accesible la información académica de calidad dentro de Escuela Académico Profesional de Ingeniería Informática y Sistemas (EAPIIS) de la Universidad Nacional Micaela de Apurímac. Los alumnos que logran adquirir con mucho esfuerzo un nuevo libro, el cual es abandonado después de cursar un semestre académico y se crea la necesidad de adquirir nuevos libros para cursar el siguiente semestre académico, el presente trabajo de investigación describe los resultados de una aplicación móvil implementada para incrementar el intercambio de libros usados entre los alumnos de la EAPIIS y la reutilización de libros. Los resultados de la aplicación de la investigación evidenciaron: En base a los resultados obtenidos de un promedio de 12 préstamos realizados antes de utilizar la aplicación, después de utilizar la aplicación para el intercambio de libros usados el promedio fue de 16.5 logrando un incremento del 72.72%.
ApuEmo: Emotion Classification in Spanish Through a Hybrid Model With Transformer and Recurrent Layer
(IEEE Access, 2026-03-12) Mamani Coaquira, Yonatan; Ibarra Cabrera, Manuel J.; Aquino Cruz, Mario; Mollocondo Flores, Wilson J.
Emotion classification in social networks is a crucial task, driven by the increasing need to analyze the opinions and feelings expressed across various platforms such as Facebook, YouTube, Instagram, and X. This work presents a novel hybrid approach for emotion classification in Spanish-language texts, integrating the pre-trained SaBERT embedding with recurrent neural networks and attention mechanisms. A rigorous evaluation using the TASS 2020 dataset from the Workshop on Semantic Analysis for Task 2: Emotion Detection, alongside a collection of Spanish comments sourced from Facebook related to the Apurimac region in Peru, was conducted. The results show that the proposed model outperforms representative state-of-the-art models, such as ELiRF-UPV and UMUTeam, achieving a maximum F1-Macro value of 0.49. Moreover, complementary lexical and emotional analyses allowed for validating the model’s behaviour in regional contexts, revealing an emotional distribution consistent with the cultural and linguistic content of the Apurimac region in Peru.
Assessment of Prickly Pear Peel Mucilage and Potato Husk Starch for Edible Films Production for Food Packaging Industries
(Waste and Biomass Valorization, 2026-03-13) Ayquipa Cuellar, Erica; Salcedo Sucasaca, Lourdes; Azamar Barrios, José Antonio; Chaquilla-Quilca, Guadalupe
Purpose Agro-industrial waste, being biodegradable and environmentally-benign, is a sustainable resource for edible film production. Edible films were fabricated from by-products, prickly pear peel mucilage (PPM) and potato husk starch (PHS), and characterised for their physical–chemical properties. Methods Various films were prepared by varying the PPM, PHS and glycerine (plasticiser) while maintaining a constant amount of vinegar (acidifying agent). Results Results showed that the formulation composition influenced the properties of the films. High concentrations of PPM and glycerine led to films with higher thickness, opacity, moisture and water retention capacity (WRC), and the percentage of water solubility (% WS) was influenced by the PHS content. All edible films presented very low water permeability (WP), and thereby good barrier properties. The WS, WRC and WP were closely associated with the PPM and glycerine contents. Consequently, the FTIR and SEM analyses showed similarities between the spectra and images. Conclusion The preparation of edible films from agro-industrial wastes, along with their specific application in food packaging, especially for fresh fruits and vegetables, contributes to sustainable alternatives due to the recovery and reuse of the processing residues.
Business Intelligence Model using Pentaho for Academic Management at UNAMBA
(Universidad Nacional Micaela Bastidas de Apurímac, 2019-09-25) Sarmiento Ponce, Hemely; Peralta Ascue, Marleny; Merma Aroni, José Luis
The article describes the process of developing a Business Intelligence model using Pentaho, to help improve the analysis of infor-mation in the Academic Management of the National University Micaela Bastidas de Apurímac. To this end, a Data Mart was imple-mented to obtain a series of academic indicators and display the information in analytical reports and statistical graphs. The guide-lines of the Hephaestus methodology were followed to design the multidimensional database; as an analytical solution according to the information needs, OLAP online analytical processing tools were used. Pentaho Community tools such as Pentaho Data Inte-gration, Mondrian OLAP Server, Schema Workebench and Pentaho Business Analytics 7.0 were used to achieve the implementa-tion. The implementation of the Business Intelligence Model using Pentaho, allowed users immersed in academic management to visualize and analyze the behavior of academic data, so that they can make informed decisions based on the knowledge extracted from the historical information stored in the college.
Carqueja and Tola High-Andean Plants - Peru: Approximation of Their Bioactive Compounds in Aqueous and Ethanolic Extract
(Revista Nativa, Agricultural and Environnmental Research, 2026-03-12) Quispitupa Ramos, Edison; Quispe Peña, Eric Augusto; Salcedo Sucasaca, Lourdes; Jordán Suárez, Oscar; Calixto Muñoz, Juan José; Chaquilla Quilca, Guadalupe
Carqueja (Baccharis trimera) and Tola (Parastrephia lepidophylla) plants are used by inhabitants to alleviate different ills. This study evaluates total polyphenols, antioxidant activity, and flavonoids in the aqueous and ethanolic extracts. Tola exhibited a higher concentration of total polyphenols compared to Carqueja in ethanolic extracts (350.065 and 56.355 mg of Gallic Acid/g DW, respectively). The ethanolic extract of Tola showed superior antioxidant activity, as evidenced by DPPH and ABTS assays with mean 46.165 mg Trolox Equivalent/g DW (20 g/200 mL 80% ethanol) and 249.815 mg Trolox Equivalent/g DW (15 g/200 mL 80% ethanol), respectively. Carqueja showed lower values in both analyses. The ratio (20 g/200 mL) of the ethanolic extract of Tola demonstrated a mean of 298.86 mg of Quercetin equiv/g DW in total flavonoids. Additionally, HPLC analysis detected the presence of chlorogenic acid and quercetin, phenolic acids that may contribute to the observed antioxidant activity. FTIR spectra revealed characteristic peaks indicating the presence of phenolic compounds associated with proteins and carbohydrates in both plant extracts. In conclusion, the ethanolic extracts of Carqueja and Tola exhibit significant levels of total polyphenols, antioxidant activity, and total flavonoids, highlighting their potential as sources of bioactive compounds.
Chemical, Physical, and Sensory Properties of Bread with Popped Amaranth Flour
(Polish Journal of Food and Nutrition Sciences, 2026-03-12) Chaquilla Quilca, Guadalupe; Islas Rubio, Alma Rosa; Vásquez Lara, Francisco; Salcedo Sucasaca, Lourdes; Silva Paz, Reynaldo Justino; Luna Valdez, Jesús Guadalupe
This study investigated the effect of substitution of wheat flour with popped amaranth flour in bread formulation on the chemical, physical, and sensory characteristics of breads. The raw and popped amaranth grain flours of four Peruvian varieties: Oscar Blanco, Centenario, Taray, and Imperial, were characterised for chemical composition and pasting properties using Rapid Visco-Analyzer (RVA). Both types of amaranth flour had a high nutritional value, but the peak and final viscosity of popped amaranth flour were closer to the wheat flour. Breads were formulated with the popped amaranth flour, at four substitution levels of 0, 10, 20, and 30%. A significant increase in contents of protein (around 12%) and raw fiber (more than 100%), and a decrease in carbohydrate content (around 6%) in breads at the highest substitution level compared to wheat bread were observed. At this substitution level, the RVA profile parameters, specific volume, pore area, and colour coordinates (L*, a*, and b*) differed significantly. In the sensory analysis using Flash profile technique, consumers identified that the Taray and Imperial bread varieties at 10 and 20% substitution level were similar to the wheat bread. Adding popped amaranth flour to bread improved the nutritional value, ensuring good physical and sensory properties. Popped amaranth flour can, thus, be an alternative to wheat flour in the development of healthy bakery products.
Collection and transportation of solid urban waste and its relationship with the payment of the service in the city of Puno
(Universidad Nacional Micaela Bastidas de Apurímac, 2020-12-12) Cornejo Calvo, Raúl
This research work has the purpose of determining the relation of the collection and transport of the Urban Solid Residues, with the payment of the service by the population of the city of Puno, for which the methodology used was the multiple linear regression (MRLM), the data was consolidated from the Provincial Municipality of Puno (MPP), for an improvement in the management of Urban Solid Waste (RSU). The amount of Urban Solid Waste, the transport capacity of the RSU was identified, the payment for the cleaning and transportation services of the RSU provided by the MPP was evaluated. The generation of RSU of the city of Puno, is 78.68 Tn.day-1, means that solid waste in a month is 2,393.18 Tn.m.-1. The transportation capacity of the RSU of the city of Puno, of the compactor vehicles that the MPP has is 2,329.00 Tn.m.-1 to collect and transport to its final disposal. Having a deficit of 48.92 Tn.mes-1 of RSU, in transport for its final disposal. Evaluating the collection for public cleaning (which includes the collection, transport and final disposal of RSU, according to a report issued by the Sub Management of Environmental Management and Public Health of the Provincial Municipality of Puno, the total annual expenditure for these services is S / .5,546,456.04, however, the collection for public cleaning is S / .1,452,897.46, showing a deficit of S / 4'093,558.58 for public cleaning carried out by the Provincial Municipality of Puno, for this purpose.
Comparing fiber quality characteristics and staple length in Suri and Huacaya alpacas
(Frontiers in Animal Science, 2026-03-12) Pinares, Rubén; Meza, Aydee; Crispín, Neyla; Lozano, Franklin; Pezo, Danilo
Introduction: The textile industry considers alpaca fiber to be a specialty fiber. The aim of this study was to evaluate the influence of color, breed, location, age, and sex of alpacas on fiber quality characteristics and staple length.Methods: Fiber samples were taken from the mid-side of 118 Huacaya and Suri alpacas at two livestock shows (Pitumarca and Maranganí) and at CICAS La Raya (South American Camelid Research Center), which is located in the province of Canchis (Cusco, Peru).Results and discussion: The fiber characteristics and staple length in black alpacas are similar to those of brown alpacas. Huacaya fiber is finer, having a lower mean fiber diameter (MFD), SD, and coefficient of variation of MFD than Suri fiber. Alpacas from the two livestock shows have higher-quality fiber than unselected alpacas raised in CICAS La Raya. Staple length is longer in Suri alpacas than in Huacaya alpacas. Likewise, the staple length is longer in alpacas from Pitumarca, followed by alpacas from Maranganí, and is shorter in alpacas from CICAS La Raya. Young alpacas have a shorter staple length than adults, and it is longer in females than in males. The mean fiber diameter and spinning fineness are strongly correlated with other fiber characteristics in colored alpacas.Conclusion: These black and brown alpacas raised in small herds and judged in two livestock shows produce high-quality fiber at 22 µm for the textile industry.
Conocimientos, prácticas y actitudes asociadas a signos clínicos afines a equinococosis quística en estudiantes y profesores de educación secundaria del distrito altoandino de Huancarama, Perú
(Revista de Investigaciones Veterinarias del Perú, 2026-03-12) Valderrama P., Aldo; Pineda S., Martin; Mayta L., María; Chumbez S., Gepsi; Velarde W., Nathaly
El objetivo del estudio consistió en determinar los conocimientos, prácticas y actitudes asociadas a signos clínicos afines a equinococosis quística de estudiantes y profesores de educación secundaria del distrito de Huancarama, departamento de Apurímac, Perú, zona endémica de esta parasitosis. La investigación fue de nivel básico, de diseño analítico y de corte trasversal. Se obtuvo el asentimiento y los consentimientos informados correspondientes. Se determinaron los signos clínicos, conocimientos, prácticas y actitudes sobre equinococosis quística, así como el estado nutricional y los valores de hemoglobina de los participantes. Los signos clínicos de equinococosis quística más frecuentes fueron debilidad (34.9%), desorientación (34.6%), somnolencia (32.7%) y dolor abdominal (31.4%). El sexo masculino fue un factor protector contra dolor abdominal, náuseas, vómitos, tos, dolor torácico, disnea, anorexia, pérdida de peso, malestar y somnolencia. Residir en zona rural también fue un factor protector de padecer dolor abdominal, náuseas, tos, dolor torácico, disnea, anorexia, pérdida de peso, debilidad, malestar, ascitis, desorientación y somnolencia. No obstante, beber agua sin hervir constituyó un factor de riesgo de náuseas, anorexia, pérdida de peso, malestar y desorientación. Realizar faenamiento de ganado en la vivienda estuvo asociado a tos, desorientación y somnolencia.
Contenido de energía metabolizable y energía neta del maíz, subproducto de trigo, harina de soya, harina de pescado y aceite de soya para pollos de carne
(Scientia agropecuaria, 2026-03-13) Moscoso Muñoz, Juan
Se realizó un estudio para determinar la energía metabolizable (EM) y energía neta (EN) del maíz, subproducto de trigo, harina de soya, harina de pescado y aceite de soya en aves. Se utilizó 190 pollos machos, distribuidos en seis dietas experimentales (basal (B), B + maíz (40%), B + subproducto de trigo (40%), B + harina de soya (30%), B + harina de pescado (30%), B + aceite de soya (10%) con tres niveles de alimentación (ad libitum (AL), 85% AL y 70% AL). La EM se determinó por el método de colección total de excretas y la EN por el método de sacrificio comparativo, los pollos recibieron las dietas experimentales de los siete a 21 días de edad, las excretas se recolectaron cada 24 horas (día 19 al 21). Para EN, se determinó la energía retenida y producción de calor (7 y 21 días). La EM y EN del maíz, subproducto de trigo, harina de soya, harina de pescado y aceite de soya fue de 3734, 2197, 2477, 3289, 8767 kcal/kg MS y 2527, 1598, 1417, 1837, 7550 kcal/kg MS respectivamente, la relación EN:EM fue mayor con el aceite de soya en comparación a los otros insumos.

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