Resultados de búsqueda - "Chang’an"

Evaluation of anthelmintic activities of crude leaf extracts of three indigenous herbal plants against ovine gastrointestinal nematodosis por Biftu, D., Nurfeta, A., Jobre, Y.

“…Efficacy of the tested materials was measured based on the significances in the reduction in mean faecal egg count (MFECC) and improvements in mean body weight changes (MBWC) before and after treatments. Albizzia gummifera showed significant (p<O.C05) anthelmintic activities with MFECC (%) of52.2±0.71, and, MBWC (%) of 21.0±1.1. …”
Enlace del recurso

Analysis of erythropoietin and erythropoietin receptor genes expression in cattle during acute infection with Trypanosoma congolense por Suliman, H.B., Logan-Henfrey, L.L., Majiwa, Phelix A.O., Ole-MoiYoi, O.K., Feldman, B.F.

“…The amount of IFN mRNA transcripts were not changed with infection in N'Dama cattle, while on the contrary a significant higher levels of IFN was found in kidneys from infected Boran cattle as compared to the infected N'Dama cattle. …”
Enlace del recurso

Tick salivary gland extract and interleukin-2 stimulation enhance susceptibility of lymphocytes to infection by Theileria parva sporozoites por Shaw, M.K., Tilney, L.G., McKeever, Declan J.

“…The IL-2-induced increase in host cell susceptibility could be prevented by treating the lymphocytes with the monoclonal antibody IL-A 111, which reacts with the bovine IL-2 receptor alpha chain and inhibits IL-2-driven cell proliferation. The changes induced by tick salivary gland extract and IL-2 occurred in less than 90 min. …”
Enlace del recurso

The performance of West African Dwarf does and their kids at various stocking densities on stylo-based pasture in the subhumid zone of Nigeria por Iji, P.A., Umunna, N.N., Alawa, J.P., Ikwuegbu, O.A.

“…There were significant changes in the content of legume and forbs in response to variations in stocking density. …”
Enlace del recurso

Valuing ecosystem services for conservation and development purposes: A case study from Kenya por Silvestri, Silvia, Zaibet, L., Said, Mohammed Yahya, Kifugo, S.C.

“…Then, by mapping existing supporting infrastructure and drivers of land use change such as demographic pressure, we highlight trade-offs and synergies among alternative uses and opportunities for sustainable development. …”
Enlace del recurso

Quantification of the relative importance of trypanotolerance measurements on productivity of N'Dama cattle (Addendum) por Wissocq, N.M., D'Ieteren, G.D.M., Trail, J.C.M., Kakiese, O.

“…A reduction of one standard deviation in length of time infected reduced the number of treatments required by 0.23 or 36 percent and an increase of one standard deviation in PCV reduced the number required by 0.27 or 43 percent. Changes in parasitaemia score were not important. …”
Enlace del recurso

Monitoring of livestock health and production in sub-Saharan Africa por Leeuw, P.N. de, McDermott, John J., Lebbie, S.H.B.

“…Finally, future monitoring needs are discussed relative to changes in African livestock systems. It is anticipated that further specialisation and intensification of livestock enterprises will require decision-support systems, many of which already exist in the developed world and could be adapted to SSA.…”
Enlace del recurso

Increasing nutrient use efficiency in West-African agriculture: The impact of micro-topography on nutrient leaching from cattle and sheep manure por Brouwer, J., Powell, J.M.

“…Given these results, there appear to be possibilities for increasing manure use efficiency in the Sahel, and elsewhere in Africa, by applying manure at different rates on different parts of a farmer's field, in accordance with micro-topographical changes. Fertiliser use efficiency could likely be increased in a similar manner.…”
Enlace del recurso

The effect of sucrose supplements on particle-associated carboxymethylcellulase (EC 3.2.1.4) and xylanase (EC 3.2.1.8) activities in cattle given grass-silage-based diet por Huhtanen, P., Khalili, H.

“…Particle-associated CMCase activities were very sensitive in detecting differences in the rumen environment and were related to changes in cell wall digestion. Activities were highly correlated with disappearance of DM and neutral-detergent fibre from nylon bags incubated in the rumen, rumen and total digestion of cell-wall carbohydrates and rumen pool size of cell-wall carbohydrates. …”
Enlace del recurso

Endopeptidase variations among different life cycle stages of African trypanosomes por Mbawa, Z.R., Gumm, I.D., Fish, W.R., Lonsdale-Eccles, John D.

“…Thus, during their life cycle, each of these African trypanosomes exhibits complex changes of endopeptidase activity, suggestive of an induction of lysosomal activity between the insect and mammalian forms.…”
Enlace del recurso

Feeding behaviour of Glossina pallidipes and G. morsitans centralis on Boran cattle infected with Trypanosoma congolense or T. vivax under laboratory conditions por Moloo, S.K., Sabwa, C.L., Baylis, M.

“…The increase in feeding success was not related to changes in the level of anaemia, skin surface termperature or parasitaemia. …”
Enlace del recurso

Trypanosoma congolense infection of trypanotolerant N'Dama (Bos taurus) cattle is associated with decreased secretion of nitric oxide by interferon-gamma-activated monocytes and in... por Taylor, K., Mertens, B., Lutje, V., Saya, R.

“…In contrast, interferon-gamma mRNA expression was not changed during infection while tumour necrosis factor-alfa was slightly reduced at day 32 post-infection. …”
Enlace del recurso

Evolution of input supply and service hubs in dairy development at Ada'a milk shed in Ethiopia por Jaleta, Moti, Gebremedhin, Berhanu, Tegegne, Azage, Jemaneh, S., Lemma, T., Hoekstra, Dirk

“…Role of the public sector could change gradually from provision of inputs and services to coordination, capacity building, quality control, and regulation.…”
Enlace del recurso

Gender, livestock and livelihood indicators. Version 2 por Njuki, Jemimah, Poole, Elizabeth J., Johnson, Nancy L., Baltenweck, Isabelle, Pali, Pamela N., Lokman, Z., Mburu, S.

“…This guide is a reference point for some of the important indicators that ILRI can use to monitor the changing role of livestock in livelihoods in different production systems and the impact of livestock-related interventions. …”
Enlace del recurso

Enhancing the sustainability of commodity supply chains in tropical forest and agricultural landscapes por Agrawal, A., Wollenberg, Eva Karoline, Newton, Peter

Enlace del recurso

Exclosure land management restores soil properties of degraded communal grazing lands in northern Ethiopia por Mekuria, Wolde, Aynekulu, Ermias

“…Our results also con"rm that the possibility to predict the changes in soil nutrient content after exclosure establishment using regression models is based on "eld measurements.…”
Enlace del recurso

Challenges of assessing the sustainability of (agro)-pastoral systems por Ayantunde, Augustine A., Leeuw, Jan de, Turner, M.D., Said, Mohammed Yahya

“…Pastoral systems in Africa are facing demographic, economic, socio-political and climatic pressures which are driving many pastoralists into non-livestock based livelihood strategies. The changing contexts in which pastoralists operate raise the issue of the sustainability of pastoral systems in dryland Africa. …”
Enlace del recurso

Global impacts from improved tropical forages: A meta-analysis revealing overlooked benefits and costs, evolving values and new priorities por White, D.W., Peters, Michael, Horne, P.

“…The wider use and improved performance of planted tropical forages can substantially change social, economic and environmental landscapes. …”
Enlace del recurso

Transformation of smallholder beef cattle production in Vietnam por Stür, Werner W., Khanh, T.T., Duncan, Alan J.

“…Within 10 years, the way that cattle were produced and marketed changed considerably. By 2010, more than 3,000 smallholders had adopted farm-grown forages and stall-feeding, and many produced high-quality beef cattle. …”
Enlace del recurso

Performance modeling of adaptive congestion control mechanisms for internet traffic por Tsegaye, D.

“…And also a reasonable increment have been achieved in throughput, average queue length, and average queuing delay as expected with a change in threshold values.…”
Enlace del recurso