Leucaena leucocephala cv Perú in Association with Graminaceae in Dryland Conditions for Final Bovine Fattening Stage

  • Raúl V. Guevara Viera Faculty of Agricultural Sciences, University of Cuenca, Yanuncay Campus, Ecuador
  • Paola J. Lascano Armas Academic Unit of Agricultural Sciences and Natural Resources (UA-CAREN), Veterinary Medicine Degree, Technical University of Cotopaxi, Latacunga, Ecuador.
  • Cristian N. Arcos Álvarez Academic Unit of Agricultural Sciences and Natural Resources (UA-CAREN), Veterinary Medicine Degree, Technical University of Cotopaxi, Latacunga, Ecuador.
  • Guillermo E. Guevara Viera Faculty of Agricultural Sciences, University of Cuenca, Yanuncay Campus, Ecuador
  • Francisco Hernán Chancusig Academic Unit of Agricultural Sciences and Natural Resources (UA-CAREN), Veterinary Medicine Degree, Technical University of Cotopaxi, Latacunga, Ecuador.
  • Jorge A. Armas Cajas Academic Unit of Agricultural Sciences and Natural Resources (UA-CAREN), Veterinary Medicine Degree, Technical University of Cotopaxi, Latacunga, Ecuador.
  • Guillermo V. Serpa García Faculty of Agricultural Sciences, University of Cuenca, Yanuncay Campus, Ecuador.
  • Hernán P. Bastidas Pacheco Academic Unit of Agricultural Sciences and Natural Resources (UA-CAREN), Veterinary Medicine Degree, Technical University of Cotopaxi, Latacunga, Ecuador.
  • Maira N. Martínez Freire Academic Unit of Agricultural Sciences and Natural Resources (UA-CAREN), Veterinary Medicine Degree, Technical University of Cotopaxi, Latacunga, Ecuador.
  • Carlos S. Torres Inga Faculty of Agricultural Sciences, University of Cuenca, Yanuncay Campus, Ecuador.
  • Lino M. Curbelo Rodríguez Center for Animal Production Studies (CEDEPA), Faculty of Agricultural Sciences, University of Camagüey, Cuba.

Resumen

To evaluate the factors that affect efficiency in a Leucaena leucocephala cv Perú association, with pastures for bovine fattening, 22 Zebu fattening cycles were studied on a farm of the Rectangulo Livestock Company, in Camagüey, Cuba, between 2002 and 2012. The local soil is brown without carbonates. The climate is tropical humid, and the annual precipitation average is 1 183mm. The factors evaluated were food balance, duration of the fattening cycle, and quantity of animals/cycle. The daily weight gain and expenses/income per operation were also analyzed. The pasture and Leucaena percentages were determined by plant counts. Food balances were estimated. The final value of the population of Leucaena cv Perú was 93% (P <0.05), with an increase in common Bermuda grass and other pastures. Short duration tests showed much higher gains (P <0.05), with values above 1.0 kg/animal/day. The number of animal/cycle (P <0.05) produced higher gains with fewer animals. Forest-grazing in association with Leucaena leucocephala cv Perú-graminaceae under dryland conditions produced mean daily gains above 0.800 kg/animal/day in the final stage of fattening bulls, based on food balances with adequate biological and economic results. The best behavior was observed in the shortest cycles, where the highest final weight/animal values were achieved, with fewer expenses and higher income.

Publicado
2018-09-26
Sección
Manejo y Alimentación