Vol. 44 No. 2 (2006)

Articles

• Radial immunodiffusion test with native hapten in the differentiation of cattle with repeated Brucella abortus S19 strain revaccinations

  Esperanza González Miranda, Laura Hernández Andrade, Efrén Díaz Aparicio

  269 a 276

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• Experimental induction of epididymitis in sheep, by intra-urethral inoculation of Actinobacillus seminis: a bacteriological, serological, and histopathological study

  Jorge Acosta Dibarrat, Efrén Díaz Aparicio, Beatriz Arellano Reynoso, Víctor Rubén Tenorio Gutiérrez, Jorge Tórtora Pérez

  257 a 267

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• Mycotoxin contamination of grains and feeds used in animal production in Mexico during 2003

  César Mateo Flores Ortiz, Luis Barbo Hernández Portilla, Josefina Vázquez Medrano

  247 a 256

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• Productivity and ascites syndrome mortality in broilers fed mash or pellet diets

  Arturo Cortés Cuevas, Antonio Estrada Contreras, Ernesto Ávila González

  241 a 246

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• Yellow pigmentation of adipose tissue of pasture-fed tropical cattle as related to its carotenoid concentration and fatty-acid profile

  Saúl Barrón Gutierrez, Ofelia Mora Izaguirre, Víctor Castaño Meneses, Armando Shimada Miyasaka

  231 a 240

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• Potential areas for establishment of forage trees in central Chiapas, Mexico

  Heriberto Gómez Castro, José Nahed Toral, Assefaw Tewolde, René Pinto Ruiz, Jaime López Martínez

  219 a 230

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• Influence of small ruminant grazing systems in a semiarid range in the state of Zacatecas Mexico. I Native vegetation

  Francisco Guadalupe Echavarría Chairez, Ramón Gutiérrez Luna, Rocío Inés Ledesma Rivera, Rómulo Bañuelos Valenzuela, Jairo Iván Aguilera Soto, Alfonso Serna Pérez

  203 a 217

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• Effect of the steroidal phytohormone cidef-4 on guinea grass seed yield and quality

  Bertín M. Joaquín Torres, Miguel A. Moreno Carrillo, Pedro A. Martínez Hernández, Alfonso Hernández Garay, Armando Gómez Vázquez, José Alberto Pérez Amaro

  193 a 201

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• The milk industry in the Valley of Mexico, a grading approach

  Teodoro Espinosa Solares, Abraham Villegas de Gante, Gaspar Gómez Ramírez, Juan Guillermo Cruz Castillo, Arturo Hernández Montes

  181 a 192

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• A profitability analysis of tilapia culture (Oreochromis spp) in six agroecosystems in the state of Veracruz, Mexico

  Pedro Zetina Córdoba, Juan L. Reta Mendiola, Calos Olguín Palacios, Rey Acosta Barradas, Gildardo Espinosa Sánchez

  169 a 179

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• Prevalence and potential risk factors for pyrethroids resistance in Boophilus microplus ticks on milk farms in Santa Cruz Department, Bolivia

  Marbel Villarroel Alvarez, Roger Iván Rodríguez Vivas, Fidel Villegas Anze, Hugo Fragoso Sánchez, Alejandrina Ortiz Nájera, Salvador Neri Orantes

  155 a 167

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• Breed effects and individual heterosis for pregnancy, calving and weaning rates in criollo, guzerat and f1 cows

  Guillermo Martínez Velázquez., Moisés Montaño Bermúdez, José Antonio Palacios Fránquez

  143 a 154

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