15 research outputs found

    Respuesta en el crecimiento de los juveniles de oreochromis niloticus alimentados con dos tipos de dieta: experimental al 28 % de proteína (a base de cáscara de plátano y soya), vs. comercial al 28%

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    Response in the growth of Oreochromis niloticus juveniles fed with two types of diet: Experimental at 28% protein (based on banana peel and soy), vs. Commercial at 28%. To determine which treatment obtained the highest growth, physical-chemical factors (Dissolved Oxygen, Temperature and pH) and population parameters (Accumulated Growth, Survival and Feed Conversion Factor) were taken. Collecting these data for 25 days where the Tilapia Oreochromis niloticus had an initial weight of 7.9 gr in both treatments. According to the results obtained in the experiment, the treatment with commercial feed at 28% protein acquired a final growth of 13.1 g, obtaining an average of 10.5 g, instead the treatment with experimental feed at 28% protein based on banana peel flour. and soybeans acquired a final weight of 10.2 gr, obtaining an average of 8.97 gr. The commercial treatment at 28% protein gained more size and biomass because they assimilated the food in a greater way and in less time, in contrast to the treatment with experimental food at 28% protein based on banana and soybean peel flour. gained little biomass and less size since they took time to assimilate and get used to the food that was put to experimental, when applying the statistical analysis it was found that p> 0.05 that the growth of the Tilapias Oreochromis niloticus there is a significant difference because between treatments There is a big difference between the weights.    Respuesta en el crecimiento de los juveniles de Oreochromis niloticus alimentados con dos tipos de dieta: Experimental al 28 % de proteína (a base de cáscara de plátano y soya), vs. Comercial al 28%. Para determinar que tratamiento obtuvo mayor crecimiento se realizó la toma de factores físico-químicos (Oxígeno Disuelto, Temperatura y pH) y parámetros poblacionales (Crecimiento Acumulado, Sobrevivencia y Factor de Conversión Alimenticia). Recolectando estos datos durante 25 días donde las Tilapias Oreochromis niloticus tuvieron un peso inicial de 7.9 gr en ambos tratamientos. Según los resultados obtenidos en el experimento, el tratamiento con alimento comercial al 28 % de proteína adquirió un crecimiento final de 13.1gr obteniendo como promedio 10.5 gr en cambio el tratamiento con alimento experimental al 28 % de proteína a base de harina de cascara de plátano y soya adquirió un peso final de 10.2 gr obteniendo como promedio 8.97 gr. El tratamiento comercial al 28 % de proteína gano más tamaño y biomasa debido a que estos asimilaron en mayor manera y en menor tiempo el alimento, en cambio el tratamiento con alimento experimental al 28 % de proteína a base de harina de cascara de plátano y soya gano poca biomasa y menos tamaño ya que estos se demoraron en asimilar y acostumbrarse al alimento que se puso a experimental, al aplicar el análisis estadístico se encontró que p>0.05 que el crecimiento de las Tilapias Oreochromis niloticus ahí diferencia significativa debido a que entre tratamientos se muestra gran diferencia entre los pesos

    Long-term prognostic value of coronary CTA in orthotopic heart transplant recipients

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    OBJECTIVE. This study aimed to evaluate the long-term prognostic value of coronary CTA (CCTA) in heart transplant recipients. MATERIALS AND METHODS. The records of 114 patients who had undergone a heart transplant (mean age, 61.7 ± 11.1 [SD] years; 83.3% men) and who underwent CCTA for the surveillance of coronary allograft vasculopathy (CAV) from June 2007 to December 2017 were retrospectively evaluated for the occurrence of major adverse cardiovascular events (MACEs) (cardiac death, nonfatal myocardial infarction, unstable angina requiring hospitalization, coronary revascularization, cardiac arrhythmias, stroke, and retransplant). Patients were classified according to the presence of nonobstructive CAV (lumen reduction < 50%) or obstructive disease (lumen reduction ≥ 50%) and using a coronary segment involvement score (SIS). Differences in MACE rate between groups were compared. RESULTS. Obstructive CAV was observed in 12 heart transplant recipients (10.5%). During a mean follow-up of 67.5 ± 41.4 months the overall rates of MACE were 50% and 14.7% in patients with obstructive and nonobstructive CAV, respectively (p < .05), resulting in an odds ratio for MACE of 6 (95% CI, 1.7–21.2). Comparison of event-free survival showed a hazard ratio (HR) of 5 (95% CI, 1.95–13; p =. 004) for patients with obstructive disease. The presence of four or more stenotic coronary segments (SIS ≥ 4) was associated with a higher rate of events (HR, 3.46; 95% CI, 1.46–8.23). CONCLUSION. In patients who have undergone a heart transplant, CCTA offers a significant long-term prognostic impact on the prediction of MACEs
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