Resultados de búsqueda - Cattle. Periodicals.

Investigation into the effects of Trypanosoma congolense infections on the pharmacokinetics of Homidium in Boran cattle por Murilla, G., Peregrine, A.S., Holmes, P.H., Eisler, M.C., Ndung'u, J.M.

“…After infection, there was a rapid drop in packed cell volume (PCV) values from a mean pre-infection value of approximately 40 percent to approximately 25 percent within 14 days of infection in cattle infected with IL 1180. However, in cattle infected with IL 3330, the drop in PCV was more gradual from approximately 40 percent to approximately 30 percent within the same period of time. …”
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Investigation into the effects of Trypanosoma congolense infections on the pharmacokinetics of Homidium in Boran cattle por Murilla, G.A., Peregrine, A.S., Holmes, P.H., Eisler, M.C., Ndung'u, J.M.

“…After infection, there was a rapid drop in packed cell volume (PCV) values from a mean pre-infection value of approximately 40% to approximately 25% within 14 days of infection in cattle infected with IL 1180. However, in cattle infected with IL 3330, the drop in PCV was more gradual from approximately 40% to approximately 30% within the same period of time. …”
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Trypanosomiasis in N'Dama cattle in Zaire and its effects on their health and production por Mulungo, M., D'Ieteren, G.D.M., Feron, A., Itty, P., Maehl, H.M., Nagda, S.M., Paling, R.W., Rarieya, J.M., Thorpe, W.R., Trail, J.C.M.

“…Reports the prevalence, species and intensity of trypanosome infections over a 3 year period for N'Dama cattle managed on Mushie Ranch, Zaire. …”
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Tick ecological studies at Did Tuyura ranch on Boran cattle in Ethiopia por Gebre, S.

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Milk production characteristics of the Kenana breed of Bos indicus cattle in Sudan por Wilson, R.T., Ward, P.N., Saeed, A.M., Light, D.E.

“…Quantifies a range of milk production characteristics over a long period of the Kenana, a Bos indicus breed of cattle indigenous to Northern Sudan, with particular reference to lactation yield, lactation strength and calving interval, and determines the effects of environmental including management, variables on those characteristics.…”
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Measurement of trypanotolerance criteria and their effect on reproductive performance of N'Dama cattle por Trail, J.C.M., D'Ieteren, G.D.M., Murray, M., Ordner, G., Yangari, G., Collardelle, C., Sauveroche, B., Maille, J.C., Viviani, P.

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Environmental and genetic factors affecting milk production of Butana cattle in the Sudan por Alim, K.A.

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Performance characteristics of some eastern and southern African Zebu cattle breeds por Tawah, C.L., Rege, J.E.O.

“…The zebu cattle "breeds" of eastern and southern Africa are broadly classified into "large" and "small" types. …”
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Blood values observed in some breeds of cattle in the savanna regions of Nigeria por Wood, A.S., Kramer, J.W.

“…Blood was obtained from cattle representing the white Fulani, N’Dama, Muturu and Holstein-Friesian breeds and was collected during the period June 1965 to April 1966. …”
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Plasma tocopherol in sheep and cattle after ingesting free or acetylated tocopherol por Hidiroglou, Nick N., McDowell, Lee Russell, Balbuena, Osvaldo

“…In a second trial, four heifers received the two forms (50 mg/kg body weight) in rotation after an appropriate washing period between the two dosings. Again, plasma tolerance curve area was greater in the cattle following administration of dl-α-tocopherol than its acetylated form.…”
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Behavioural compensation for limited grazing time by herded cattle in central Nigeria por Bayer, W.

“…The grazing behaviour in 12 cattle herds (mean size 45 head) mainly of the Banaji (White Fulani) breed kept by Fulani pastoralists was studied by analysing the diurnal pattern of grazing activity during 5 herd-days per month over 1 year. …”
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Glossina fusca group tsetse as vectors of cattle trypanosomiasis in Gabon and Zaire por Leak, S.G.A., Colardelle, C., D'Ieteren, G.D.M., Dumont, P., Feron, A., Jeannin, P., Minengu, M., Mulungo, M., Ngamuna, S., Ordner, G., Sauveroche, B., Trail, J.C.M., Yangari, G.

“…Up to 49 percent of bloodmeals of G. tabaniformis were from cattle. Trypanosome prevalence in cattle where G. tabaniformis appeared to be the main vector was 9.5 percent and 5.4 percent at the Mushie and OGAPROV ranches respectively. …”
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Trypanosome antigen test to characterise infection status in N'Dama cattle por Wissocq, N.M., D'Ieteren, G.D.M., Trail, J.C.M., Masake, R., Nantulya, V.M., Monsengo, B.

“…Relationship between antigen test index and average PCV and daily weight changes over the test period were also observed and the effect of an infection status characterised by the combination of both diagnostic techniques was then evaluated.…”
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Soil PH and nitrogen changes following cattle and sheep urine deposition por Somda, Z.C., Powell, J.M., Bationo, B. André

“…The changes in soil pH and mineral N concentrations of cattle and sheep urine patches were compared to those occurring in fertilizer urea placement zones in a study in Niger. …”
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The impact of agricultural credit on the cattle inventory in Colombia: a spatial analysis por Mejía Tejada, Daniela, Díaz, Manuel Francisco, Charry, Andrés, Enciso, Karen, Burkart, Stefan

“…The precise impacts access to credit has on cattle production levels and deforestation, however, have not yet been fully documented. …”
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Measurement of methane emissions in cattle with infrared gas analyzer and gas chromatography por Gaviria Uribe, Xiomara, Chirinda, Ngonidzashe, Barahona Rosales, Rolando, Bolívar Vergara, Diana María, Rosenstock, Todd S., Arango, Jacobo

“…Therefore, it remains unclear whether IPCC emission factors are reflective of CH4 emissions from cattle in tropical locations. The polytunnel method is a promising, simple and accessible approach for quantifying enteric CH4 emissions in which individual or groups of cattle can be confined for selected periods of time during which the amount of CH4 they produce is collected and then measured (Storm et al. 2012; Goopy et al. 2016). …”
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Genetic analysis of phenotypic indicators for heat tolerance in crossbred dairy cattle por Oloo, Richard Dooso, Ekine-Dzivenu, Chinyere C., Mrode, Raphael A., Bennewitz, J., Ojango, Julie M.K., Kipkosgei, Gideon, Gebreyohanes, Gebregziabher, Okeyo Mwai, Ally, Chagunda, M.G.G.

“…Climate change-induced rise in global temperatures has intensified heat stress on dairy cattle and is contributing to the generally observed low milk productivity. …”
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Cattle breed improvement for sustainable draft power use in Ethiopian agriculture por Tegegne, Azage

“…Ethiopia has the largest livestock population in Africa with approximately 30 million cattle, of which 9 to 10 million oxen are used for draft purposes. …”
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Effects of BoGHV-4 and LPS on key inflammatory molecules: Insights from primary culture studies por Romeo, Florencia, Delgado, Santiago, Pereyra, Susana Beatriz, Lopez, Sofia, Pérez, Sandra, Verna, Andrea Elizabeth

Materias: “…Cattle…”
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The impact of gastrointestinal parasites on weight gain, activity patterns and behaviours in cattle on pasture por Johansson, Lisa

“…The average daily weight gain during different periods throughout the pasture period was significantly affected by treatment (P<0.0001) and period (P<0.0001). …”
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