La mayoria de los problemas relacionados con la produccion de cerdas gestantes, criadas en confinamiento, en climas calientes, es debido al estres por las altas temperaturas. El acceso al agua permite que sea alcanzada la sensacion de confort termico; el objetivo principal de este trabajo fue interpretar el comportamiento de las cerdas gestantes en el sistema que utiliza una lamina de agua corriente en los corrales, permitiendo de esta forma el acceso constante al agua como fuente de intercambio termico y confort. Fueron estudiados el efecto de dos tipos de instalaciones para cerdas en gestacion, el primer metodo fue el de piso de concreto, comparado a un segundo que utiliza un canal de agua corriente de 5 cm de profundidad y 1 m de ancho en toda la extension de la nave. Tanto el microclima como la respuesta productiva de las cerdas no tuvieron diferencias significativas, mas la sensacion de confort termico es resaltada debido a un menor numero de animales descartados

During a 28-year field survey in India (1988–2016), groundwater arsenic contamination and its health effects were registered in the states of West Bengal, Jharkhand, Bihar and Uttar Pradesh in the Ganga River flood plain, and the states of Assam and Manipur in the flood plain of Brahamaputra and Imphal rivers. Groundwater of Rajnandgaon village in Chhattisgarh state, which is not in a flood plain, is also arsenic contaminated. More than 170,000 tubewell water samples from the affected states were analyzed and half of the samples had arsenic >10 μg/L (maximum concentration 3,700 μg/L). Chronic exposure to arsenic through drinking water causes various health problems, like dermal, neurological, reproductive and pregnancy effects, cardiovascular effects, diabetes mellitus, diseases of the respiratory and gastrointestinal systems, and cancers, typically involving the skin, lungs, liver, bladder, etc. About 4.5% of the 8,000 children from arsenic-affected villages of affected states were registered with mild to moderate arsenical skin lesions. In the preliminary survey, more than 10,000 patients were registered with different types of arsenic-related signs and symptoms, out of more than 100,000 people screened from affected states. Elevated levels of arsenic were also found in biological samples (urine, hair, nails) of the people living in affected states. The study reveals that the population who had severe arsenical skin lesions may suffer from multiple Bowens/cancers in the long term. Some unusual symptoms, such as burning sensation, skin itching and watering of eyes in the presence of sun light, were also noticed in arsenicosis patients.