Results: 29

Uso de quitina e quitosana como adsorventes de amônia de efluentes aquícolas: revisão de literatura

Os resíduos provenientes da aquicultura são derivados da ração e da excreção dos peixes e podem estar sedimentados, suspensos ou dissolvidos, ocasionando elevados valores de DBO, DQO, nitrogênio e fósforo. A produção de camarões no Brasil tem gerado elevadas quantidades de resíduos sólidos, ...

Embolización de colaterales portosistémicas espontáneas como tratamiento de la encefalopatía hepática refractaria

Rev. med. Chile; 150 (7), 2022
BACKGROUND: Hepatic encephalopathy (HE) is a common complication of cirrhosis associated with a reduced survival. The presence of high-flux spontaneous porto-systemic shunts can induce HE even in patients with preserved liver function. AIM: To evaluate the effect of spontaneous porto-systemic shunt embol...

Ammonia levels during broiler rearing cycle

The evaluated ammonia volatilization rates and its association with humidity, temperature, and pH in broiler litter in conventional and dark house rearing systems. Evaluations were performed at 0.01, 1.00, and 1.50 m high, using a completely randomized design, at a weekly frequency for 12 weeks—from th...

Ammonia gas for bacterial control in poultry litter

Pesqui. vet. bras; 42 (), 2022
The current techniques used in the disinfection of reused poultry litter, such as lime addition, windrowing and plastic cover on the surface, do not guarantee the elimination of pathogenic microorganisms, causing damage to the environment and animal health. Gram negative bacteria, i.e., Salmonella and Es...

Calidad del aire interior mediante indicadores ecológicos y sociales asociados a la inmisión de material particulado (PM10) en la zona este 2

El material particulado (PM) es uno de los contaminantes más importantes presentes en el aire, representando un riesgo medioambiental para la salud. Las partículas con un diámetro de 10 micrones o menos (PM10), al ser inhalables, pueden penetrar y alojarse profundamente en los pulmones, contribuyendo ...

Estructura organizacional del policlínico Julián Grimau para la respuesta médica ante emergencias químicas por amoníaco
Organizational structure of Julián Grimau polyclinic for medical response to chemical emergencies by ammonia

Introducción: El amoníaco constituye riesgo de emergencia química en el Policlínico Docente Julián Grimau del municipio Arroyo Naranjo, lo que hace necesario asumir una estructura organizacional que viabilice la respuesta médica frente a este tipo de eventos. Objetivo: Diseñar una propuesta de es...

Aerobic stability of tifton 85 silage with and without pre-drying in the sun

Biosci. j. (Online); 37 (), 2021
The objective of this study was to evaluate pH, ammoniacal nitrogen, and aerobic stability of silage of Tifton 85 grass silage with two dry matter contents at different silos opening times. The experimental design was completely randomized, in a subdivided plots scheme, in which the silages constituted t...

Effect of Fluoxetine Hydrochloride on Routine Metabolism of Lambari (Deuterodon iguape, Eigenmann, 1907) and Phantom Shrimp (Palaemon pandaliformis, Stimpson, 1871)

HIGHLIGHTS Fluoxetine increases the metabolic rate and excretion of ammonia in both species. O:N ratio in fish showed higher values in the highest concentrations of fluoxetine. The LC50 - 96 hour values of Palaemon pandaliformis represented greater toxicity. Both species are a good biological model...

Aquaponic System with White Shrimp Litopenaeus vannamei Rearing and Production of the Plants Batis maritima, Sarcocornia neei and Sporobolus virginicus

Abstract Aquaponics is a system that integrates aquaculture with plant production in which two species are benefited, and there is water saving. In this study was carried out with an aquaponic system to verify the interaction between the growth of the halophytes Batis maritime, Sarcocornia neei, and Spor...

Volatilization of ammonia in systems of treatment of swine manure with aquatic macrophytes

Braz. j. biol; 79 (3), 2019
Abstract The usage of aquatic plants represents an alternative in the treatment of residues originating from swine. In these systems, one of the N removal methods is the ammonium (NH4 +) uptake and volatilization of ammonia (NH3). In this way, the objective of this work was to evaluate the volatilizatio...