Browsing by Author "Once Yanza, Mariela Alexandra"

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Factores de agrotécnia y manejo del pastizal que afectan su rendimiento, persistencia y producción de leche en sistemas ganaderos según el piso altitudinal en la zona oriental del Azuay
(2018) López Alvarado, Diego Andrés; Once Yanza, Mariela Alexandra; Guevara Viera, Raúl Victorino
The objective of the study was to evaluate the effect of agrotechnical factors and grazing management on pasture productivity and milk production in the eastern Azuay ecosystems according to the altitudinal level. The research was carried out in farms located in different altitudinal floors classified through GPS in Montano low, Montano, and Montano high. Surveys evaluated the agrotechnical factors of the pasture and the production of milk. To determine availability of forage was used the method of cutting frames by classifying the botanical composition in the laboratory. The height of the pasture was evaluated in cm and the dry matter was obtained through the drying process obtained in the microwave. For the statistical analysis, the anova and significance tests were performed at 5%. In the three ecosystems, fertilization favored pasture yield (p<0.05), increased white clover in montane, and Ryegrass and Weeds in high montane. The response of milk production to the use of fertilizers and irrigation were significant (p<0.05) in Montano and Montano Alto. The yield of grasses in response to irrigation was higher and increased Ryegrass and Holco in high montane (p<0.05). Livestock husbandry favored milk production yields in montane and high montane with a higher yield of dry matter and weeds in montane (p<0.05). The factors of agrotécnia and management of the pasture allowed improvements in yield, botanical variability and increases in milk production, all of these factors allow greater development for cattle ranches.
Producción de leche como respuesta a la fertilización y riego en ganaderías de ecosistemas andinos en Ecuador.
(2018) Guevara Viera, Raúl Victorino; Nieto Escandón, Pedro Emilio; Torres Inga, Carlos Santiago; Guevara Viera, Guillermo Emilio; Aguilar Valladares, Yolanda Mercedes; Serpa García, Víctor Guillermo; Once Yanza, Mariela Alexandra; López Alvarado, Diego Andrés; Ayala Guanga, Luis Eduardo; Murillo Apolo, Yury Agapito; Lascano Armas, Paola Jael; Arcos Álvarez, Cristian Neptali; Carmilema Asmal, Johny Fernando; Curbelo Rodríguez, Lino Miguel
In order to evaluate the effect of fertilizer and irrigation applications on milk production in Andean farms in Ecuador, a study was carried out on 535 farms with an altitude of 2550 m and temperatures between 7 and 25 ° C in montane ecosystems (Montano, Montano Alto and Montano Low). Factors such as fertilization and irrigation and the production of milk with a botanical composition of Ryegrass - Kikuyo as grasses and Clover White and Red as legumes were considered. The milk production was taken from the records corresponding to the day after the occupation of the paddock. A simple ADEVA was applied within each ecosystem. The dry matter availability of the grass was between 1.65 t / ha in Montano Bajo and 2.81 t / ha in Montano Alto. There were significant differences (P <0.05) in milk yields in Montano and Montano Alto with fertilized pastures (6.5 and 9.7 kg / cow) compared to lower values in non - fertilized. In relation to irrigation effects, significant differences (P <0.05) were in favor of sprinkler irrigation in Montano and Montano Alto with 8.7 and 10.8 kg / cow and higher values in production / ha. It was concluded that the responses in milk yield to fertilizer and sprinkler irrigation were significant (P <0.05) in the Montano and Montano Alto ecosystems compared to Low Montano, with values between 6,5 and 8,7 and 9,7 and 10 , 8 kg / cow / day and higher yields per area, explained by the greater availability of dry matter of the pasture in both ecosystems as an effect of applied agro technical activities