Resultados de búsqueda - Cattle. Periodicals.

Study on the sequential tsetse-transmitted Trypanosoma congolense, T. brucei brucei and T. vivax infections to African buffalo, eland, waterbuck, N'Dama and Boran cattle por Moloo, S.K., Orinda, G.O., Sabwa, C.L., Minja, S.H., Masake, R.A.

“…Thus trypanotolerant African buffalo, eland, waterbuck, N'Dama as well as some trypanosusceptible Boran cattle can serve as reservoirs of single or mixed trypanosome infections for tsetse flies. …”
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The effect of some environmental and disease factors on testicular and epididymal functions of zebu bulls and their friesian crosses. The influence of season on ejaculate character... por Rekwot, P.I., Voh, A.A., Oyedipe, E.O., Opaluwa, G.I., Sekoni, V.O., Dawuda, P.M.

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Assessment of fattening and marketing system, and effect of concentrate supplementation with locally available feeds on fattening performance of indigenous cattle in Bonke Woreda o... por Demisse, G.

“…The feeding trial was conducted in Danible Ottora Kebele,with 18 (9 castrate and 9 non – castrate) indigenous cattle for 70 days excluding adaptation period of 15 days. …”
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Transition models to assess risk factors for new and persistent trypanosome infections in cattle - analysis of longitudinal data from the Ghibe Valley, Southwest Ethiopia por Schukken, Y.H., Schaik, G. van, McDermott, John J., Rowlands, G.J., Nagda, S.M., Mulatu, W., D'Ieteren, G.D.M.

“…Data collected from 1561 cattle were analyzed from a long-term study involving 8 herds in which both trypanosome infections (a total of 56,931 cattle sampling-months) and tsetse (Glossina spp.) challenge were monitored monthly from March 1986 to March 1998. …”
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Longitudinal observational (single cohort) study on the causes of trypanocide failure in cases of African animal trypanosomosis in cattle near wildlife protected areas of Northern... por Richards, Shauna, Pagnossin, D., Buyugu, P.S., Manangwa, O., Mramba, F., Sindoya, E., Paxton, E., Torr, S.J., Ritchie, R., Rossi, G.E., Anyanwu, Lawrence N., Barrett, M.P., Morrison, L.J., Auty, H.

“…Quality analysis was performed on trypanocide samples using High Performance Liquid Chromatography. A total of 630 cattle from 21 farms were monitored for a year-long period. …”
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Performance and meat quality of native and continental cross steers grazing improved upland pasture or semi-natural rough grazing por Fraser, M.D., Davies, D.A., Vale, J.E., Nute, G.R., Hallett, K.G., Richardson, R.I., Wright, Iain A.

“…There is growing interest in the environmental benefits of grazing by cattle, yet little information is available regarding the levels of production that might be achieved on semi-natural rough grazing (SNRG). …”
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Preliminary efficacy investigations of oral fipronil against Anopheles arabiensis when administered to Zebu cattle (Bos indicus) under field conditions por Poché, R.M., Githaka, Naftaly W., Gool, F. van, Kading, R.C., Hartman, D., Polyakova, L., Abworo, Edward O., Nene, Vishvanath M., Lozano Fuentes, S.

“…These control methods target endophagic vectors, whereas some malaria vectors, such as Anopheles arabiensis, preferentially feed outdoors on cattle, making it a complicated vector to control using conventional strategies. …”
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Population dynamics of the cattle tick Rhipicephalus (Boophilus) microplus in a subtropical subhumid region of Argentina for use in the design of control strategies por Canevari, Jose Tobias, Mangold, Atilio Jose, Guglielmone, Alberto, Nava, Santiago

“…Treatments of cattle administered during the period from late winter to late spring will act on small cohorts of R. microplus, preventing the emergence of larger generations in summer and autumn. …”
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Revisiting sampling duration to estimate N2O emission factors for manure application and cattle excreta deposition for the UK and Ireland por Vangeli, Sebastián, Cardenas, Laura M., Posse Beaulieu, Gabriela, Chadwick, Dave R., Krol, Dominika, Thorman, Rachel E., Lanigan, Gary J., Misselbrook, Tom H.

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Nitrous oxide emission factors for cattle dung and urine deposited onto tropical pastures: A review of field-based studies por Zhu, Yuhao, Butterbach-Bahl, Klaus, Merbold, Lutz, Leitner, Sonja, Pelster, David E.

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Strategic applications of long-acting acaricides against Rhipicephalus (Boophilus) microplus in northwestern Argentina, with an analysis of tick distribution among cattle por Nava, Santiago, Mangold, Atilio Jose, Canevari, Jose Tobias, Guglielmone, Alberto

“…In addition, tick distribution among cattle was analyzed to evaluate if partial selective treatment or culling the small proportion of most heavily infested animals were feasible options to control R. …”
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A one-year longitudinal study of enterohemorrhagic Escherichia coli O157 fecal shedding in a beef cattle herd por Rhades, Luis, Larzabal, Mariano, Bentancor, Adriana, Sabio Y Garcia, Julia Veronica, Babinec, Francisco Jose, Cataldi, Angel Adrian, Amigo, Natalia, Baldone, Valeria Natalia, Urquiza, Lucas Federico, Delicia, Pablo Javier, Fort, Marcelo Cristian

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Cytokine mRNA profiles in trypanotolerant and trypanosusceptible cattle infected with the protozoan parasite trypanosoma congolense: Protective role for interleukin-4 por Mertens, B., Taylor, K., Muriuki, C., Rocchi, M.

“…Transcripts for IL-5 were barely detectable throughout the experimental period in both Boran and N'Dama cattle. Expression of TNF-alfa, IL-1 beta mRNA did not change notably during the course of infection. …”
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Long-term relationships of beef and dairy cattle and greenhouse gas emissions: Application of co-integrated panel models for Latin America por Sandoval, Danny, Junca Paredes, Jhon Jairo, Enciso Valencia, Karen Johanna, Díaz Baca, Manuel Francisco, Bravo Parra, Aura María, Burkart, Stefan

“…The cattle sector plays a pivotal role in the economies of numerous Latin American and Caribbean countries. …”
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Institutional arrangements in the promotion of sustainable livestock: an approach from the case of beef and dairy cattle production chains in Jalisco, Chiapas, and Campeche por Avalos, Ileana, Sepulveda, Claudia, Betanzos, Juan Edduardo, Jimenes-Trujillo, Jose Antonio, Pérez-Sánches, Edwin, Escobedo, Adriana

“…This study focuses on a policy and practice review of existing institutional arrangements within the beef and dairy cattle production sectors in the Mexican states of Jalisco, Chiapas, and Campeche. …”
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Trypanosoma congolense: Comparative effects of a primary infection on bone marrow progenitor cells from N'Dama and Boran cattle por Andrianarivo, A.G., Muiya, P., Opollo, M., Logan-Henfrey, L.L.

“…From 98 dpi onwards, despite the persistent low PCV, the MCV decreased to preinfection levels and low CFU-E numbers were observed in the Borans. Over the same period, in the N'Damas the N'Damas the mean PCV progressively increased to reach 25 percent, which fell within the low normal range for cattle. …”
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Associations of marker panel scores with feed intake and efficiency traits in beef cattle using pre-selected single nucleotide polymorphisms por Mujibi, F.D.N., Nkrumah, J.D., Durunna, O.N., Mah, J., Wang, Z., Basarab, J., Plastow, G., Crews, D.H., Grant, J.R, Moore, S.S.

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Weighted single-step genome-wide association analyses for milk traits in Holstein and Holstein x Jersey crossbred dairy cattle por Raschia, Maria Agustina, Nani, Juan Pablo, Carignano, Hugo Adrian, Amadio, Ariel, Maizon, Daniel Omar, Poli, Mario Andres

“…The purpose of this study was to identify genomic regions explaining a major proportion of the genetic variance in milk production and milk fat and protein content on a commercial herd of Holstein and Holstein x Jersey crossbred cattle bred in an extensive grazing system. We analyzed 305-day cumulative milk production records from 18876 cows at first lactation, of which 16907 and 16735 had milk fat and protein content records during the same period. …”
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The effect of supplementation with Leucaena leucocephala and maize bran on voluntary food intake, digestibility, live weight and milk yield of Bos indicus X Bos taurus dairy cows a... por Muinga, R.W., Topps, J.H., Rooke, J.A., Thorpe, W.R.

“…Bos indicus (Ayrshire/Brown Swiss) X Bos taurus (Sahiwal) cattle were offered Pennisetum purpureum (napier grass) ad libitum either unsupplemented (N) or supplemented on a dry-matter (DM) basis with 1 kg (LL) or 2 kg leucaena (LH) or 2 kg leucaena together with 1 kg DM maize bran (LHM). …”
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The reproductive performance, mothering ability and productivity of crossbred and Tswana beef cows in Botswana por Light, D., Buck, N.G., Sethola, L.L.

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