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El uso de cultivos forrajeros para corte y acarreo o para ensilar es una alternativa para reducir los efectos negativos de la época seca en la alimentación de animales en sistemas ganaderos doble propósito en el trópico seco. Por otra parte, el uso de abonos verdes de leguminosas es una alternati...


Castro, R.E.Sierra, E.Mojica, J.E.Carulla, Juan E.Lascano, Carlos E.[Efecto de especies y manejo de abonos verdes de leguminosas en la producción y calidad de un cultivo forrajero utilizado en sistemas ganaderos del trópico seco]Efecto de especies y manejo de abonos verdes de leguminosas en la producción y calidad de un cultivo forrajero utilizado en sistemas ganaderos del trópico seco
Botero Botero, RaúlCarulla, Juan E.Garcés, Miguel[El arachis, en suelos fértiles, es tan bueno o mejor que la alfalfa]El arachis, en suelos fértiles, es tan bueno o mejor que la alfalfa
Tiemann, Tassilo T.Cortés, J.E.Pabon, MLHess, HDKreuzer, M.Carulla, Juan E.[In vitro evidence for the importance of cultivation conditions on the effects of Calliandra tannins on ruminal escape of soybean protein and its post-ruminal degradability]In vitro evidence for the importance of cultivation conditions on the effects of Calliandra tannins on ruminal escape of soybean protein and its post-ruminal degradability
Hess, HDAbreu, A.Carulla, Juan E.Kreuzer, M.Lascano, Carlos E.[Intake, digestion and duodenal nitrogen flow in sheep fed tropical diets supplemented with fruits of Sapindus saponeira]Intake, digestion and duodenal nitrogen flow in sheep fed tropical diets supplemented with fruits of Sapindus saponeira

The effects of supplementing a tropical, low-quality grass hay (Brachiaria dictyoneura) with legume foliage (Cratylia argentea) or fruits of the multipurpose tree Sapindus saponaria on ruminal fermentation, methane release and nitrogen (N) utilization were evaluated. Six Swiss White Hill lambs we...


Hess, HDBeuret, RALotscher, MHindrichsen, I.K.Machmuller, ACarulla, Juan E.Lascano, Carlos E.Kreuzer, M.[Ruminal fermentation, methanogenesis and nitrogen utilization of sheep receiving tropical grass hay-concentrate diets offered with Sapindus saponaria fruits and Cratylia argentea foliage]Ruminal fermentation, methanogenesis and nitrogen utilization of sheep receiving tropical grass hay-concentrate diets offered with Sapindus saponaria fruits and Cratylia argentea foliage

A comparison of the effects on rumen fermentation of three saponin rich tropical fruits supplemented to forage-based diets was completed using a rumen simulation technique (Rusitec). The diets contained either no tropical fruit or 100?mg/g of Sapindus saponaria (crude saponins, 120?mg/g), 200?mg/...


Hess, HDKreuzer, M.Díaz, T.E.Lascano, Carlos E.Carulla, Juan E.Soliva, CRMachmuller, A[Saponin rich tropical fruits affect fermentation and methanogenesis in faunated and defaunated rumen fluid]Saponin rich tropical fruits affect fermentation and methanogenesis in faunated and defaunated rumen fluid

Measurements were carried out at the Carimagua Research Station in the Llanos of Colombia, to (1) further characterise the nutritional value of A. pintoi (CIAT 17434) in association with B. dictyoneura cv. Llanero during the rainy (RS) and dry (DS) season, and (2) assess legume selectivity of res...


Carulla, Juan E.Lascano, Carlos E.Ward, JK[Selectivity of resident and oesophageal fistulated steers grazing Arachis pintoi and Brachiaria dictyoneura in the Llanos of Colombia]Selectivity of resident and oesophageal fistulated steers grazing Arachis pintoi and Brachiaria dictyoneura in the Llanos of Colombia

With the purpose of determining under field condi Lions the quantity of rainfall that moves vertically to several depths in the Altillanura, a soil Tipyc Haplustox isohipertérmico caolinítico of the municipality of Port López (Meta) was selected, worked during several years (2,4 and 6 traîl passe...


Carulla, Juan E.Lascano, Carlos E.Klopfenstein, T[Reduction of tannin level in a tropical legume (Desmodium ovalifolium) with polyethylene glycol (PEG): Effects on intake and N balance digestion and absorption by sheep]Reduction of tannin level in a tropical legume (Desmodium ovalifolium) with polyethylene glycol (PEG): Effects on intake and N balance digestion and absorption by sheep

The objectives were to: (1) identify and quantify the effect of technological change on productivity, profitability, and competitiveness in different milk production systems and regions of the country; (2) analyze the relationship between productivity, technological change, profitability, and com...


Holmann, Federico J.Rivas Ríos, LibardoCarulla, Juan E.Rivera, BGiraldo, L.A.Guzmán Perez, S.Martínez, M.Medina, A.Farrow, Andrew[Evolution of milk production systems in Tropical Latin America and its interrelationship with markets : An analysis of the Colombian case]Evolution of milk production systems in Tropical Latin America and its interrelationship with markets : An analysis of the Colombian case

Six adult African-type hair sheep (BW = 40.3 +/- 6.3 kg) fitted with ruminal and duodenal cannulas were subjected to four treatments. Sheep were offered basal diets at a rate of 80 g of DM/kg of metabolic BW (equivalent to ad libitum access) consisting either of a low-quality grass hay (Brachiari...


Abreu, A.Carulla, Juan E.Lascano, Carlos E.Díaz, T.E.Kreuzer, M.Hess, HD[Effects of Sapindus saponaria fruits on ruminal fermentation and duodenal nitrogen flow of sheep fed a tropical grass diet with and without legume]Effects of Sapindus saponaria fruits on ruminal fermentation and duodenal nitrogen flow of sheep fed a tropical grass diet with and without legume

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