1000 resultados para 42-380A
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This experiment was conducted to evaluate the use of different energy levels and amino acid recommendations on performance, carcass yield and intestinal morphometry of broilers from 42 to 57 days of age. We used 1,600 one-day old male broilers (Cobb 500) in a completely randomized design arranged in a 2x4 factorial scheme with 3,200 and 3,600 kcal ME/kg and four different feed programs. The metabolizable energy levels and the feed programs did not determine significant differences in carcass characteristics for choosing a level of energy or a feed program, thus the energy level and the recommendations of amino acids that determine the highest cost-benefit ratio should prevail. It was observed that 3,600 kcal ME/kg resulted in some improvement on performance and morphometry of the intestinal mucosa, also the fractioning of digestible amino acid requirements during two periods resulted in worse performance and intestinal villi height.
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Latin America and the Caribbean's Trade Rises for the Second Year Running China Seeking to Strengthen Economic Ties with Latin American Countries Op-ed by José Luis Machinea: A New Phase in Regional Integration Highlights by Ricardo Ffrench-Davis: Financial Crises in Emerging Economies: Not Just Bad Luck nor Pure Contagion Indicators It's Time to Reduce the Bias Against Public Investment Recent Titles Calendar
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2005: buen año para comercio de América Latina y el Caribe China busca afianzar lazos económicos con los países latinoamericanos Columna de Opinión de José Luis Machinea: Una nueva fase de la integración regional Precisiones, de Ricardo Ffrench-Davis: Crisis financieras en economías emergentes: ni mala suerte ni contagio puro Indicadores Es hora de disminuir el sesgo anti-inversión pública Publicaciones Recientes Calendario de eventos
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Editorial.-- Discusión abierta: El cambio conceptual de la regulación en un escenario de prestación pública ; Políticas e institucionalidad en materia de agua potable y saneamiento ; Estrategias de desarrollo bajo en carbono en megaciudades de América Latina ; Adaptación al cambio climático de la gestión hídrica para el sector riego.-- Reuniones: Hacia una visión de la gobernanza de los recursos naturales para la igualdad ; Recursos hídricos bajo incertidumbre y riesgo al cambio climático ; Desafíos de regulación en sector de agua.-- Noticias de la red: Lecciones del acuerdo interprovincial de distribución de caudales del río Colorado ; Programa agua potable rural de Chile ; Ley orgánica de recursos hídricos, usos y aprovechamiento del agua de Ecuador.-- Noticias sobre internet y www
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Editorial remarks.-- Open discussion: Conceptual change in regulation in a model of public service provision ; Policies and institutional frameworks for drinking water supply and sanitation ; Strategies for low-carbon development in megacities in Latin America ; Adapting to climate change in water management in the irrigation sector.-- Meetings: Towards a vision on natural resource governance for equality ; Water resources faced with uncertainty and the risk of climate change ; Regulation challenges in the water sector.-- News of the Network: Lessons to be drawn from the interprovincial Colorado River flow distribution agreement ; Rural drinking water programme in Chile ; Ecuador’s Act on Water Resources and Water Use and Exploitation.-- Internet and WWW News