Resultados de búsqueda - Cattle. Periodicals.

Frequencies of β-casein variants and their influence on genetic merit for production traits in Holstein cows por Caffaro, María Eugenia, Raschia, Maria Agustina, Maizon, Daniel Omar, Poli, Mario Andres

“…This has encouraged many breeders to select A2A2 cows in their dairy cattle herds. Aims: This study aimed to evaluate the genetic variation in the bovine CSN2 gene regarding A1-like and A2-like variants and to assess the potential association between these variants and production traits in Holstein cows. …”
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Evaluación económica de la incorporación de un sistema silvopastoril en campos de cría bovina en el norte de Buenos Aires por Egolf, Patricia, Mujica, Gerardo Oscar, Olemberg, Demián Jeremías, Calcaterra, Carlos Pablo

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An economic evaluation of an intensive silvo-pastoral system in San Martín, Peru por Junca Paredes, John Jairo, Durango Morales, Sandra Guisela, Burkart, Stefan

“…Through a discounted cash flow model over an eight-year period, key profitability indicators—Net Present Value (NPV), Internal Rate of Return (IRR), Benefit–Cost Ratio (BC), and payback period—were estimated for four dual-purpose cattle production scenarios: a traditional system and three SPSi scenarios (pessimistic, moderate, and optimistic). …”
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Evaluación de una mezcla reemplazadora de la leche con y sin aurofac por Zamora Guerrero, Conrado, Bateman, John V.

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Combate del tórsalo (Dermatobia hominis, L. Jr.) por medio de insecticidas, en Turrialba, Costa Rica por Neel, W.W., Urbina, O, Havis, J.R, Alba, Jorge de

“…A series of experiments was devised in order to study several chlorinated insecticides upon the incidence of Dermatobia hominis on cattle. Several points came out from preliminary trials, such as: serious mistakes occur when treated and untreated animals are kept in the same pasture; tests should include periods of high and low infestation, etc. …”
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Beef Nutritional Characteristics, Fat Profile and Blood Metabolic Markers from Purebred Wagyu, Crossbred Wagyu and Crossbred European Steers Raised on a Fattening Farm in Spain por Vázquez-Mosquera, Juan M., Fernández-Novo, Aitor, De-Mercado, Eduardo, Vázquez-Gómez, Marta, Gardón, Juan C., Pesántez-Pacheco, José L., Revilla-Ruiz, Ángel, Patrón, Raquel, Pérez-Solana, Maria L., Villagrá, Arantxa, Martínez, Daniel, Sebastián, Francisco, Pérez-Garnelo, Sonia S., Astiz, Susana

“…Beef cattle production has improved to achieve consumers’ preferences, including meat quality and human-health-related indexes. …”
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Pesos al destete y aumentos de peso en ganado de carne por Alba, Jorge de, Muñoz, H., Edwards, C.

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Caracterización de los agentes virales involucrados en el complejo respiratorio bovino en sistemas intensivos bovinos del Valle 16 de Octubre, provincia de Chubut, y evaluación de... por Apostolo, Romina Maria

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La productividad de las razas Jersey y Holstein en clima tropical húmedo y bajo un regimen de estabulación completa por Narváez Ramírez, G.L.

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Desarrollo de sub-sistemas de alimentación de bovinos con rastrojos de frijol (Phaseolus vulgaris L.).II.Balance metabólico a varios niveles de energía y proteína suplementaria por Lozano, E, RUIZ, M.E, Ruiz, A

“…The later o feed ingredients were varied sub that al the end of the adaptation period 13 treatments resulted from the modified factorial combination of the following levels: 0, 100, 200, 500, and 400 y CP/100 ky LW/day (variable X,) and 0,05, 10, 15, and 20 kg of molasses, as fed,/100 kg 1 /day (variable X.) …”
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Bioestimulantes en la agricultura: Extractos húmicos por Amaringo Córdova, Luiz Paulo, Camacho Villalobos, Alina Alexandra

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Evidence of the role of marketing arrangements and valuation methods in improving beef quality por Liu, Yanyan, Muth, Mary K., Koontz, Stephen R., Lawrence, John D.

“…[EconLit Citation: Q13]. © 2009 Wiley Periodicals, Inc.…”
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Pastoral resource access and utilization: quantifying the spatial and temporal relationships between livestock mobility, density and biomass availability in southern Kenya por Butt, B.

“…The relationship between cattle density and vegetation reveals a strategy of increased resource utilization during wetter periods. …”
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Pastoralism and drought. A case study of the Borana of southern Ethiopia por Donaldson, T.J.

“…Their subsistence depends primarily on milk offtake from their Boran cattle and favourable terms of trade for conversion of cattle to grain. …”
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Economic analysis of trypanocide use in villages under risk of drug resistance in West Africa. por Affognon, Hippolyte D.

“…In all, 206 herds with a total of 3565 cattle in eighteen villages were monitored during a period of twelve months. …”
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Pharmacological and epidemiological studies on the drug-sensitivity of trypanosomes isolated from a peri-urban dairy production system in Uganda. por Olila, D.

“…In the first part of this study, 486 cattle from 50 farms in Mukono County were monitored for trypanosome infections over a two-year period (1995 to 1996). …”
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Rift Valley fever: Influence of herd immunity patterns on transmission dynamics por Gachohi, John M., Bett, Bernard K.

“…Results The model reproduces the 2006/7 RVF outbreak and predicts a high herd immunity level at the end of that outbreak, with 90% of sheep and 72% of cattle being immune. This immunity wanes overtime, declining to 18% in sheep and 42% in cattle by the end of the simulation period (~4 years). …”
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Incidence of Brucella infection in various livestock species raised under the pastoral production system in Isiolo County, Kenya por Njeru, Josiah, Nthiwa, Daniel, Akoko, James M., Oyas, H., Bett, Bernard K.

“…Background: We implemented a longitudinal study to determine the incidence of Brucella infection in cattle, camels, sheep and goats that were being raised in a pastoral area in Isiolo County, Kenya. …”
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Impacts of tsetse control on migration, livestock production, cropping practices and farmer-herder conflicts in the Mouhoun valley of southern Burkina Faso por Kamuanga, M., Antoine, C., Brasselle, A.S., Swallow, B.M., D'Ieteren, G.D.M., Bauer, B.

“…Tsetse control improved animal health and productivity, especially through reductions in cattle mortality. Cattle ownership increased by 26% and 9%, in Satiri and Bekuy Division, respectively. …”
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The effect of PhageGuard intervention on Escherichia coli O157:H7 applied to beef hides por Martinez G., Andres I.

“…An in-plant study was conducted to assess the antimicrobial effectiveness of the Phage Guard intervention against E. coli O157:H7 in cattle stalls before slaughter. The reduction in microbial surface area was evaluated by collecting 500-600 cm2 hide samples from the cleanest area of the cattle during slaughter at the Gordon W. …”
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