13 results on '"Sandoval-Monzón, Rocío"'
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2. Sobreduración y situación académica de los ingresantes a la Escuela Profesional de Medicina Veterinaria de la Universidad Nacional Mayor de San Marcos en el periodo 2004-2013
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Perales Camacho, Rosa, Sandoval-Monzón, Rocío, Villarreal Yupton, Lucía, and Ruiz-García, Luis
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programa académico ,over duration ,drop out ,deserción ,university degree ,academic programme} ,titulación universitaria ,sobreduración - Abstract
The aim of this study was to evaluate the excessive duration of the study program and the academic situation of the entrants of the Professional School of Veterinary Medicine (EPMV) of the Universidad Nacional Mayor de San Marcos. The study followed up on entrants between 2004 and 2013, whether or not they had completed their studies. The formal graduation time was established at seven years (formal excess duration index = 1.0) and the time for timely graduation at eight years (timely excess time index = 1.0). By 2022, 78% of entrants had completed their studies, 21% had dropped out, and 42% had a professional degree. The average time from entry to obtaining the professional degree was 10.1 years. The formal excess duration rate was 1.45, so graduates needed 45% more time (about 3 years) to achieve their degree, while the timely excess duration rate was only 1.27. In conclusion, there is a low percentage of graduates graduated from the EPMV., El objetivo de este trabajo fue evaluar la sobreduración del programa de estudio y la situación académica de los ingresantes de la Escuela Profesional de Medicina Veterinaria (EPMV) de la Universidad Nacional Mayor de San Marcos. El estudio realizó el seguimiento de los ingresantes entre 2004 y 2013, hayan o no culminado los estudios. El tiempo de titulación formal fue establecido en siete años (Índice de sobreduración formal = 1.0) y el tiempo de titulación oportuna en ocho años (Índice de sobreduración oportuna = 1.0). Para 2022, 78% de los ingresantes culminaron sus estudios, el 21% había abandonado los estudios y el 42% contaba con título profesional. El tiempo promedio desde el ingreso hasta la obtención del título profesional fue de 10.1 años. El índice de sobreduración formal fue de 1.45, por lo que, los egresados necesitaron 45% más tiempo (cerca de 3 años) para lograr su titulación, en tanto que el índice de sobreduración oportuna fue solo de 1.27. En conclusión, se registra un bajo porcentaje de egresados titulados en la EPMV.
- Published
- 2022
3. Inclusion of different levels of inulin on productive parameters and intestinal morphology in fattening guinea pigs (Cavia porcellus)
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Cáceres, Fernando Carcelén, primary, Howard, Felipe San Martín, additional, Gómez, Miguel Ara, additional, Quintana, Sandra Bezada, additional, Méndez, Ana Asencios, additional, Ruiz-García, Luis, additional, Sandoval-Monzón, Rocío, additional, Aliaga, Ronald Jiménez, additional, Camacho, Rosa Perales, additional, Altamirano, Gilberto Santillán, additional, and Vásquez, Jorge Guevara, additional
- Published
- 2021
- Full Text
- View/download PDF
4. Efficacy of physical and chemical treatments on the inactivation of bovine leukosis virus present in milk
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Sandoval-Monzón, Rocío Silvia, primary, Arévalo-Rodriguez, Irma Cecilia Karla, additional, Carrillo-Torres, Aldo Alberto, additional, and Ruiz-García, Luis Felipe, additional
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- 2021
- Full Text
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5. Evaluación de los indicadores de estrés calórico en las principales localidades de lechería intensiva del departamento de Lima, Perú
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Felipe Ruiz G., Luis, Carcelén C., Fernando, and Sandoval-Monzón, Rocío
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índice temperatura-humedad ,índice de sobrecarga calórica ,estrés calórico ,temperature-humidity index ,heat overload index ,heat stress ,dairy cows ,vacas lecheras - Abstract
The aim of this study was to evaluate heat stress indicators in the main locations of intensive dairy production of the department of Lima. The localities of Végueta, Huacho, Huaral, Lurín and Cañete were evaluated during the period 2010-2013. The monthly and local average of air temperature, relative humidity and temperature-humidity index, the duration of the heat stress and the heat overload index (ITH Overload) were calculated. The percentage of days in which ITH Overload was greater than 0 and the percentage of days according to severity of heat stress were calculated. It was showed that the ITH Overload was greater than 10 from November to May, with a peak in February. The duration of the heat stress was greater than 12 hours between January and April. Cañete was the location with the highest ITH Overload and longest duration of heat stress. The cows in Vegueta suffered some degree of heat stress in 98% of the days of the year. The severity of heat stress by location was Cañete > Végueta > Huacho > Huaral > Lurín. It is concluded that dairy cattle in the Lima area are subjected to heat stress during most of the year, being the area of Cañete the most affected., El objetivo de este trabajo fue evaluar los indicadores de estrés calórico en las principales localidades de lechería intensiva del departamento de Lima. Se evaluaron las localidades de Végueta, Huacho, Huaral, Lurín y Cañete durante el periodo 2010-2013. Se determinó el promedio mensual y por localidad de la temperatura ambiental, la humedad relativa y el índice temperatura-humedad, la duración del estrés calórico y el índice de sobrecarga calórica (ITH Sobrecarga). Se calculó el porcentaje de días en los cuales el ITH Sobrecarga fue superior a 0 y el porcentaje de días según severidad del estrés calórico. Se demuestra que el ITH Sobrecarga fue mayor a 10 desde noviembre a mayo, con un pico en febrero. La duración del estrés calórico fue mayor a 12 horas entre enero y abril. Cañete fue la localidad con mayor ITH Sobrecarga y mayor duración de estrés calórico. Las vacas en Vegueta presentaron algún grado de estrés calórico en el 98% de los días del año. La severidad de estrés calórico por localidad fue de Cañete > Végueta > Huacho > Huaral > Lurín. Se concluye que el ganado lechero de la zona de Lima está sometido a estrés calórico durante casi todo el año, siendo la localidad de Cañete la más afectada.
- Published
- 2019
6. Diagnóstico de mastitis subclínica de vacunos lecheros mediante el conteo de células somáticas empleando dos métodos diagnósticos
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Ruiz García, Luis Felipe and Sandoval Monzón, Rocío Silvia
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Subclinical mastitis ,Revistas ,CMT ,Conteo de células somáticas ,Universidad del Zulia (LUZ) ,Revista Científica ,Vacas lecheras ,Medio Ambiente ,Dairy cattle ,Flow cytometry ,Somatic cell counts ,Citometría de flujo ,Mastitis subclínica ,Universidad de Los Andes (ULA) - Abstract
El objetivo fue comparar los resultados del conteo de células somáticas (CCS) empleando la citometría de flujo por imágenes (CFI) y la tradicional prueba de mastitis de California (CMT) en el diagnóstico de mastitis subclínica en los bovinos lecheros. Se analizó un total de 44 muestras de leche. Se consideraron para el estudio sólo las muestras de cuartos mamarios que no presentaba mastitis clínica. Mediante CMT se clasificaron las muestras en negativas, con reacción débil, con reacción distinguible y con reacción fuertemente positiva. La concentración de CS en la leche fue evaluada empleando la tinción de Sybr Green I. Se calculó el coeficiente de correlación de Spearman entre el CCS y el puntaje de CMT, se calculó el coeficiente de asociación de Tau-b de Kendall entre la respuesta al CMT y a tres niveles del CCS (menos de 750 x 103; 750 x 103 a 1500 x 103; más de 1500 x 103 células por mL) y se calculó el nivel de concordancia entre ambas pruebas utilizando un umbral de 1000 x 103 células por mL para el diagnóstico de la mastitis subclínica, mediante el índice de Kappa de Cohen. Al realizarse un análisis de correlación de Spearman, el coeficiente de correlación fue de 0,26 (P>0,05), el cual es un nivel de correlación bajo. El análisis estadístico revela que los resultados no estuvieron asociados, ya que el coeficiente de asociación de Tau-b de Kendall fue de 0,15 (P>0,05). El CMT fue eficiente en la discriminación CCS a un nivel de 1000 x 103 células por mL con una sensibilidad de 69,2% y una especificidad del 71,0%. Mostrando un coeficiente de concordancia de Kappa de Cohen de 0,36 (P 0.05), which is a low correlation level. Statistical analysis revealed that the results were not associated, since the association coefficient of Kendall’s Tau-b was 0.15 (P> 0.05). The best efficiency of CMT was obtained in the CCS discrimination at a level of 1000 x 103 cells per mL with a sensitivity of 69.2% and a specificity of 71.0%; presenting a Cohen’s Kappa index of 0.36 (P
- Published
- 2018
7. Effect of probiotics administration at different levels on the productive parameters of guinea pigs for fattening (Cavia porcellus).
- Author
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Carcelén, Fernando, López, Melissa, Martín, Felipe San, Ara, Miguel, Bezada, Sandra, Ruiz-García, Luis, Sandoval-Monzón, Rocío, López, Sofía, and Guevara, Jorge
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GUINEA pigs ,PUBLIC health ,LACTOBACILLUS reuteri ,PROBIOTICS ,WEIGHT gain ,BACILLUS pumilus - Abstract
Background: For more than 50 years, antibiotics have been used to maintain animal welfare and improve efficiency. Recently, antibiotics were found in the muscle, liver, and kidney of guinea pig carcasses put up for sale and human consumption, which is a public health issue. Probiotics are supplements of live microorganisms that, when administered in adequate doses, could replace growth-promoting antibiotics. Aim: This study analyzed the effect of the administration of an oral probiotic mixture on the guinea pigs productive performance (Cavia porcellus). Methods: Fifty male guinea pigs, weaned at 14 days of age, were distributed in a completely randomized design of five treatments with ten repetitions for each group. The treatments were CONTROL group without probiotic; PROB 1 given 1 ml of probiotic; PROB 2 with 2 ml of probiotic; PROB 3 with 3 ml of probiotic; and antibiotic growth promoter (AGP) was given 300 ppm zinc bacitracin. The microorganisms used in the probiotic were Enterococcus hirae, Lactobacillus reuteri, Lactobacillus frumenti, Lactobacillus johnsoni, Streptococcus thoraltensis, and Bacillus pumilus. Productive parameters were evaluated from weaning to 70 days of age. Results: No statistically significant difference was found between the treatments on forage dry matter intake (DMI), concentrateconcentrate DMI, or total concentrate DMI (p > 0.05). Similarly, no statistical difference was found between the treatments in terms of final weight or weight gain (p > 0.05). Regarding the feed conversion ratio (FCR), there was a significant difference between treatments (p = 0.045); the CONTROL group had the highest FCR, followed by the AGP group, with the best FCR observed in the PROB 3 group (p < 0.05). In addition, significant statistical differences were found between CONTROL and PROB 2 (p < 0.05). Likewise, a significant linear effect of increasing doses of the probiotic was found (p = 0.01), which indicated that the feed conversion was better with a higher dose. Conclusion: The treatments evaluated in this study significantly impacted the FCR in guinea pigs for fattening. Increasing doses of probiotics had a linear effect on FCR. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
8. Determinación de la Tasa de Servicio y de los Factores que la Afectan en Establos de Lechería Intensiva de Lima, Perú
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Sandoval Monzón, Rocío Silvia, Ruiz García, Luis Felipe, and Carcelén Caceres, Fernando Demetrio
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establos lecheros ,dairy farms ,tasa de servicio ,fixed-time artificial insemination ,service rate ,prostaglandin ,Lima ,inseminación a tiempo fijo ,prostaglandina - Abstract
This study aimed to determine the service rate (TS) in intensive dairy farms in Lima, Peru and to identify the factors affecting it. For this purpose, 144 experimental units (farm-month units) were used. Each unit consisted of 60 randomly selected cows who had more than 60 days in lactation during the study month and their conception date should be after the start date of the study month. Records of four dairy farms in the provinces of Huaura, Huaral, Lima and Cañete in the period of August 2010 to July 2013 were assessed. The effect of days in milk (DEL), production level (NPX), parity (NP), the percentage of inseminated cows by using prostaglandins (%PG), percentage of inseminated cows under fixed-time artificial insemination (%TAI) and maximum temperature-humidity index (THI Max) on service rate were evaluated. Moreover, farm, year, season and milking frequency were evaluated. TS was 44.6%. The %TAI, %THI and NP were highly significant (p
- Published
- 2017
9. Desempeño Reproductivo de Vacas Lecheras con Involución Uterina Retardada bajo Tratamiento Hormonal con Cipionato de Estradiol y Benzoato de Estradiol
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Ruiz García, Luis Felipe, Sandoval Monzón, Rocío Silvia, Montenegro Vega, Milena, and Delgado Castro, Alfredo
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involución uterina retardada ,tratamiento ,treatment ,delayed uterine involution ,dairy cows ,vacas lecheras ,reproductive performance ,desempeño reproductivo - Abstract
The aim of this study was to evaluate the reproductive performance of dairy cows with delayed uterine involution under hormonal treatment with estradiol cypionate (CE2) and estradiol benzoate (BE2) between 36 and 49 days after parturition and a group of dairy cows with normal uterine involution. A total of 349 dairy cows with delayed uterine involution and 127 dairy cows without delayed uterine involution from a commercial farm in Lima, Peru were used. The BE2 treatment consisted of the i.m. application of 3 doses of 5 mg at 2-day interval and the CE2 treatment consisted of the i.m. application of 2 doses of 4 mg at 4-day interval. The parameters evaluated were calving-to-conception interval (IPC), services per conception (NSC), conception rate at first service (P1S) and the pregnancy rate at 200 days (P200D). In addition, the likelihood of get pregnant according to the days in lactation using Cox proportional hazards model. Both the IPC and the NSC were lower in cows treated with CE2 (122.1 days and 1.3 respectively) that in cows treated with BE2 (138.4 days and 1.5, respectively (p, El objetivo de este estudio fue evaluar el desempeño reproductivo de vacas lecheras con involución uterina retardada y sometidas a dos tratamientos hormonales (cipionato de estradiol [CE2] y benzoato de estradiol [BE2]) entre los 36 a 49 días después del parto y un grupo de vacas con cuernos uterinos involucionados sin tratamiento. Se trabajó con 349 vacas con involución uterina retardada y 127 vacas con cuernos involucionados de un establo lechero comercial en Lima, Perú. El BE2 se aplicó en 3 dosis de 5 mg por animal, vía i.m. interdiaria y el CE2 se aplicó en 2 dosis de 4 mg por animal, vía i.m. en un intervalo de 4 días. Se evaluó el intervalo parto concepción (IPC), el número de servicios por concepción (NSC), la tasa de concepción al primer servicio (P1S) y el porcentaje de preñez a los 200 días (P200d). Además, se evaluó la probabilidad de que las vacas queden preñadas en función a los días en lactación empleando el modelo de riesgos proporcionales de Cox. El IPC y el NSC fueron menores en vacas tratadas con CE2 (122.1 días y 1.3, respectivamente) que en las tratadas con BE (138.4 días y 1.5, respectivamente) (p
- Published
- 2017
10. Efficacy of physical and chemical treatments on the inactivation of bovine leukosis virus present in milk.
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Silvia Sandoval-Monzón, Rocío, Karla Arévalo-Rodriguez, Irma Cecilia, Alberto Carrillo-Torres, Aldo, and Felipe Ruiz-García, Luis
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BOVINE leukemia virus , *VIRUS inactivation , *MILK , *PASTEURIZATION of milk - Abstract
Purpose: The objective of the present study was to evaluate the efficacy of pasteurization, freezing, the addition of formaldehyde and peroxymonosulfate on the inactivation of the bovine leukemia virus (BLV) present in milk.Materials and Methods: A sheep bioassay was carried out in 40 sheep, which were intra-peritoneally inoculated with leukocytes from milk infected by the BLV previously treated with one of the virus inactivation methods. Five study groups were evaluated: (1) control group: milk without previous treatment, (2) pasteurization group: milk treated by pasteurization, (3) freezing group: milk treated by freezing for 36 hours, (4) formaldehyde group: 0.1% formaldehyde, and (5) peroxymonosulfate group: 0.05% peroxymonosulfate. The inoculated animals were followed for 10 weeks.Results: At week 10 post-inoculation, all the animals (8/8) of the control group and the peroxy-monosulfate group were seropositive to BLV, while no animals were seropositive (0/8) to BLV in the remaining three groups. Statistically significant differences were found between the pasteurization, freezing and formaldehyde groups with respect to the control (p < 0.001) and peroxymonosulfate groups (p < 0.001). Conclusion: The results indicate that pasteurization, freezing and formaldehyde processes are efficient in inactivating the BLV and can be used in milk to prevent the transmission of the virus. [ABSTRACT FROM AUTHOR]
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- 2021
- Full Text
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11. Craneotomía Rostrotentorial Descompresiva en un Carnero Reproductor
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Sandoval Monzón, Rocío Silvia, Ruiz García, Luis Felipe, Salinas Campos, Eben Amed, and Victorio Cisneros, Willy Mayk
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ovine ,tumor ,hipertensión endocraneal ,tumour ,intracranial hypertension ,craneotomía ,craniotomy ,ovino - Abstract
This study aimed to discuss the results of a rostrotentorial decompressive craniotomy performed in a ram with had severe neurological signs. The patient had a clinical picture of right paresis product of a left hemisphere syndrome. A computerized axial tomography (CAT) was conducted and a tumour was found in the left cerebral hemisphere. In order to extend the productive life of the animal, given his value as a sire, a decompressive craniotomy was performed. Part of the cranial vault was dissected to provide more space to the brain and relieve intracranial hypertension caused by this pathology. Once recovered from anaesthesia, the animal presented a remission of neurological signs. The patient did not present the previous compulsive circling behaviour, ataxia and head-pressing behaviour. The patient remained under observation for a period of 20 days, during which he presented good temper and appetite. The results of the surgery showed the possibility of using this technique for the relief of neurologic clinical signs in animals suffering cerebral neoplasia, cerebral oedema, cerebral bruises or coenuruses., Este trabajo tuvo como objetivo presentar los resultados de una craneotomía rostrotentorial descompresiva realizada en un carnero Carriedale con severos signos neurológicos. El paciente presentaba un cuadro de paresia derecha producto de un síndrome de hemisferio izquierdo. La tomografía axial computarizada (TAC) mostró una masa tumoral en el hemisferio cerebral izquierdo. Con la finalidad de prolongar la vida del animal, dada su valía como reproductor, se realizó una craneotomía descompresiva. Se realizó la resección de una parte de la bóveda craneana a fin de dar más espacio al cerebro y aliviar la hipertensión endocraneana producida por dicha patología. Una vez recuperado de la anestesia, el animal presentó una remisión de los signos neurológicos. El paciente dejó de presentar torneo, ataxia y presión cefálica sobre las paredes al caminar. El paciente quedó bajo observación por un periodo de 20 días, durante el cual presentó buen ánimo y apetito. Los resultados obtenidos en la presente cirugía evidencian la posibilidad de emplear dicha técnica para el alivio de los signos clínicos neurológicos en animales que presenten neoplasias, edema, hematomas y coenurosis a nivel cerebral.
- Published
- 2017
12. DIAGNÓSTICO DE MASTITIS SUBCLÍNICA DE VACUNOS LECHEROS MEDIANTE EL CONTEO DE CÉLULAS SOMÁTICAS EMPLEANDO DOS MÉTODOS DIAGNÓSTICOS.
- Author
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Felipe Ruiz-García, Luis and Silvia Sandoval-Monzón, Rocío
- Abstract
Copyright of Revista Cientifica de la Facultade de Veterinaria is the property of Universidad del Zulia, Facultad de Ciencias Veterinarias and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2018
13. Inclusion of different levels of inulin on productive parameters and intestinal morphology in fattening guinea pigs (Cavia porcellus).
- Author
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Carcelén Cáceres, Fernando, Martín Howard, Felipe San, Ara Gómez, Miguel, Bezada Quintana, Sandra, Asencios Méndez, Ana, Ruiz-García, Luis, Sandoval-Monzón, Rocío, Jiménez Aliaga, Ronald, Perales Camacho, Rosa, Santillán Altamirano, Gilberto, and Guevara Vásquez, Jorge
- Subjects
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INULIN , *GUINEA pigs , *INTESTINES , *MORPHOLOGY , *WEIGHT gain , *BACITRACIN - Abstract
This study evaluated the effect of the three inulin levels (0.1%, 0.2%, 0.4%) supplemented as a substitute for an antibiotic growth promoter (AGP, zinc bacitracin) and control in guinea pigs raised for human consumption. Fifty 14-day-old male guinea pigs were used. Productive parameters (weight gain, total dry matter intake, and feed conversion ratio (FCR)) and intestinal morphology of the duodenum, jejunum, and ileum at slaughter (70 days of age) were evaluated. An inverse relationship was observed between inulin levels and FCR (linear effect; P = 0.006). There was no statistically significant effect of the treatments on total dry matter intake and weight gain (P > 0.05). A linear effect of the inulin level on the villi's length (VL), villi's width (VW), and length/depth ratio (VL/DC) in the duodenum; VW in the jejunum; and VL in the ileum (P <0 .05) was reported. In conclusion, a linear effect of the increasing doses of inulin was found on the FCR and the morphological parameters of the duodenum's integrity, and no differences in the effects of the inulin added to the diet and the treatment with AGP were found. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
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