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Research carried out to evaluate management options and animal production potential of native and improved pastures in savanna regions of tropical America is reviewed, with emphasis on Colombia's Eastern Plains. In areas with limited infrastructure native grasses are the main forage resource and ...


Lascano, Carlos E.[Managing the grazing resource for animal production in savannas of tropical America]Managing the grazing resource for animal production in savannas of tropical America

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

A series of feeding trials with sheep were carried out at the Centro Internacional de Agricultura Tropical in Colombia to assess the effect of wilting and drying on intake rate and acceptability of the shrub legume Cratylia argentea (Desvaux) O. Kuntze. In the first 2 experiments, intake rate was...


Raaflaub, MLascano, Carlos E.[The effect of wilting and drying on intake rate and acceptability by sheep of the shrub legume Cratylia argentea]The effect of wilting and drying on intake rate and acceptability by sheep of the shrub legume Cratylia argentea

Research aimed at developing various Stylosanthes species as forage crops in South America began with the collection of Brazilian germplasm in the 1960s. These efforts have intensified greatly in the past 25 years with the participation of a number of local, national and international institution...


Miles, John W.Lascano, Carlos E.[Status of Stylosanthes development in other countries. I. Stylosanthes development and utilisation in South America]Status of Stylosanthes development in other countries. I. Stylosanthes development and utilisation in South America

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

Ingestively masticated fragments were collected and sized via sieving. Different sizes of esophageal masticate and ruminal digesta fragments, and ground fragments of larger masticated pieces were incubated in vitro, and undigested NDF remaining at intervals of up to 168 h of incubation was determ...


Ellis, WCMahlooji, MLascano, Carlos E.Matis, JH[Effects of size of ingestively masticated fragments of plant tissues on kinetics of digestion of NDF]Effects of size of ingestively masticated fragments of plant tissues on kinetics of digestion of NDF

Lack of synchronization between N released from prunings applied to the soil as green manures and crop uptake as well as optimization of protein digestibility for ruminants, remain major research objectives for the selection of multipurpose tree and shrub legumes (MPT) for mixed smallholder syste...


Tscherning, KLascano, Carlos E.Barrios, E.Schultze-Kraft, RainerPeters, Michael[The effect of mixing prunings of two tropical shrub legumes (Calliandra houstoniana and Indigofera zollingeriana) with contrasting quality on N release in the soil and apparent N degradation in the rumen]The effect of mixing prunings of two tropical shrub legumes (Calliandra houstoniana and Indigofera zollingeriana) with contrasting quality on N release in the soil and apparent N degradation in the rumen

Extensive comparisons of the effects of tropical shrub legumes rich in condensed tannins (CT) require well-conserved material. It is, however, unclear if the application of even gentle methods like freeze drying (lyophilization) affects the results in comparison to fresh material. Therefore, an e...


Tiemann, Tassilo T.Avila Vargas, PLascano, Carlos E.Kreuzer, M.Hess, HD[Effect of freeze drying on in vitro ruminal fermentation dynamics of three tropical shrub legumes with and without condensed tannins]Effect of freeze drying on in vitro ruminal fermentation dynamics of three tropical shrub legumes with and without condensed tannins

Plant-growth-promoting (PGP) bacteria include a diverse group of soil bacteria thought to stimulate plant growth by various mechanisms. Brachiaria forage grasses, of African origin, are perennials that often grow under low-input conditions and are likely to harbour unique populations of PGP bacte...


Kelemu, SegenetFory Sánchez, Paola AndreaZuleta, CRicaurte, J.Rao, Idupulapati M.Lascano, Carlos E.[Detecting bacterial endophytes in tropical grasses of the Brachiaria genus and determining their role in improving plant growth]Detecting bacterial endophytes in tropical grasses of the Brachiaria genus and determining their role in improving plant growth

A feeding trial with sheep was carried out at the Centro Internacional de Agricultura Tropical (CIAT) in Colombia to investigate the concept of using mixtures of sun-dried tropical shrub legumes to dilute tannin levels in the diet and improve nitrogen (N) utilisation by ruminants. Intake, digesti...


Fassler, OMLascano, Carlos E.[The effect of mixtures of sun-dried tropical shrub legumes on intake and nitrogen balance by sheep]The effect of mixtures of sun-dried tropical shrub legumes on intake and nitrogen balance by sheep

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