Efeitos da amonização sobre o valor nutritivo do feno de capim-braquiária

This work was conducted to determine the effects of ammoniation and supplementation on the nutritive value of signal grass (Brachiaria decumbens Stapf) hay. The hay was treated with anhydrous ammonia (3.0% DM) and introduced into the rations for sheep with 12.00% of CP, identified as T1 grass hay without NH3 + cotton seed meal; T2 = treated hay (3.0% de NH3); T3 = treated hay (3.0% de NH3) + com grain meal; T4 = hay + cotton seed meal + corn grain meal. nit: following coefficients of digestibility were determined for T1, T2, T3 e T4, respectively: DM (54.90; 55.50); 54.50; and 56.12%); NI)I: (51.36; 60.20; 55.30; and 48.35%); ADF (47.36; 58.66; 56.03; and 47.07%); hemicellulose (58.80; 63.32; 56.00; and 49.70%); cellulose (55.58; 71.80; 68.07; and 58.21%); lignin (10.10; 32.18; 31.74; and 0.72%) and protein (64.6; 59.36; 56.16; and 70. 15%). nle N balances for T1, T2, T3 and T4 were 5.69; 3.88; 3.90; and 8,82 g N/day. It was concluded that the ammoniation was equivalent to the vegetable protein supplementation in the rations. Furthermore, this treatment showed a greater potential to increase fiber digestion, particulary for ADF and cellulose.

Alterações na produtividade e composição nutricional de uma pastagem após segundo ano de aplicação de diferentes doses de cama de frango

The objective was to evaluate the potential use of poultry litter, compared to mineral fertilization, productivity, features bromatologic and absorption of nutrients from a pasture of Brachiaria decumbens. The experimental area was installed in oxisoil in Uberlandia-MG. The design was randomized blocks with four replicates and the treatments used: control (without application of organic or mineral source), mineral fertilizer (60, 75 and 100 kg ha(-1), P K, respectively); organic fertilization with poultry litter at rates of 3,125, 6,250, 9,375 and 12,500 kg ha(-1). There were two cuts of the aerial part of Brachiaria decumbens, both at 60 days after treatment. We evaluated the yield of DM and the levels of CP, NDF, ADF, lignin, macro and micronutrients in shoots of grass. The results showed that application of poultry litter increased the productivity of DM and the levels of CP, N, P, K and Zn in Brachiaria decumbens. The poultry litter can be used as supplementary source of nutrients, the mineral fertilizer. The use of poultry litter not increased over the levels of S, Ca and Mg in Brachiaria decumbens.

Balance Preliminar de las Economías de América Latina y el Caribe 2005

Incluye Bibliografía

Balance Preliminar de las Economías de América Latina y el Caribe 2006

Incluye Bibliografía

Balance Preliminar de las Economías de América Latina y el Caribe 2009

Incluye Bibliografía

Estudio Económico de América Latina y el Caribe 2010-2011: modalidades de inserción externa y desafíos de política macroeconómica en una economía mundial turbulenta

Incluye Bibliografía

Atlas sociodemográfico de los pueblos indígenas y afrodescendientes en Colombia

Incluye Bibliografía

Rumo ao objetivo do milênio de reduzir a pobreza na América Latina e o Caribe

Incluye Bibliografía

Análisis económico de los costos externos ambientales de la generación de energía eléctrica

Incluye Bibliografía

El mercado público y los acuerdos comerciales, un análisis económico

Incluye Bibliografía

Política comercial de Chile y los TLC con Asia: evaluación de los efectos de los TLC con Japón y China

Incluye Bibliografía

Gasto y desempeño ambiental del sector privado en Colombia

Incluye Bibliografía

El gasto medio ambiental en Perú: exploración inicial

Incluye Bibliografía

Guía para la formulación de los marcos regulatorios

Incluye Bibliografía

Autoridad social en Argentina: aspectos político-institucionales que dificultan su construcción

Incluye Bibliografía