Design and construction of low-cost respiration chambers for ruminal methane measurements in ruminants oleh Jorge Rodolfo Canul Solis, Angel Trinidad Piñeiro Vázquez, Jeyderl Israe Arceo Castillo, José Alayón Alayón Gamboa, Armín Javier Ayala Burgos, Carlos Fernando Aguilar Pérez, Francisco Javier Solorio Sánchez, Octavio Alonso Castelán Ortega, Manuel Lachica López, Patricia Quintana Owen, Juan Carlos Ku Vera