Examinando por Autor "López Mendoza, Yolvi"

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Boosting biomass and leaf area with biol: morphological and yield responses of Pennisetum in the Peruvian highlands
(MDPI, 2026-03-31) Huaman Lizana, Darwin; Tarifa, Waldyr; Rodriguez, Misael; Tecsi Taipe, Sayda; López Mendoza, Yolvi; Ruiz Llontop, Deysi; Saucedo Uriarte, José Américo; Vásquez, Héctor V.; Mejía, Flor L.; Paucar, Ysai
The intensive use of chemical fertilizers in agriculture contributes to environmental pollution, which has driven the search for sustainable alternatives such as organic fertilizers. Among these, biofertilizer has garnered interest due to its potential to improve crop growth and yield. The objective of this study was to evaluate the effect of two types of biofertilizer: Bio Chumbinia (standardized) and traditional biofertilizer, as well as a control treatment (water), on the morphology, growth, yield, and leaf area of Maralfalfa (Pennisetum sp.). Morphological and growth variables were measured every 14 days, while yield and leaf area were evaluated in two successive periods corresponding to 42 days of growth. The results indicated that most morphological and growth parameters were significantly influenced by treatment, time, and evaluation (p < 0.05), except for tiller number, blade number, and the blade emergence rate (p > 0.05). Bio Chumbinia showed superior values compared with the control at 6.0 cm for plant height, 0.1 cm/day in the growth rate, 4.1 cm for blade length, and 1.2 mm for blade width; when compared with the traditional biol, the values were similar. The growth rate and leaf emergence peaked on day 14 and subsequently declined. The fresh and dry matter yields were consistently higher on Bio Chumbinia treatment than others (p < 0.05). Although no differences were found for blade weight and leaf area between Bio Chumbinia and the control, the leaf area in Bio Chumbinia was 1400 cm2 more than the control. The second evaluation showed improved productivity, which is consistent with the higher values on the morphological characteristics. No differences were observed in the leaf-to-stem + sheath dry matter ratio. These results demonstrate the potential of Bio Chumbinia to improve the productive performance of Maralfalfa as a foliar fertilizer in sustainable agricultural systems in Peru.
Chicory (Cichorium intybus L.) and plantain (Plantago lanceolata L.) inclusion improves some growth, production, and carcass characteristics of guinea pigs (Cavia porcellus L.) in the Peruvian highlands
(Tripoli University / Faculty of Veterinary Medicine, University of Tripoli, 2026-05-31) Pariona Rodas, Shirley B.; Rodríguez, Misael; Mejía , Flor L.; Cueva Rodríguez, Medali; López Mendoza, Yolvi; Vásquez, Héctor V.; Saucedo Uriarte, José A.; Zamora Huamán, Segundo J.; Paucar, Ysai
Background: Alternative forages, such as chicory and plantain, have been successfully applied in various animal species. As a result, these forages could serve as an alternative for raising guinea pigs in high Andean regions; however, few, if any, reports have been published on the effects of their inclusion on growth, production, and carcass yield. Aim: This study aimed to determine the effects of incorporating chicory and plantain into the diet of guinea pigs on growth, production, and carcass yield, elucidating the possibility of using these species for feeding guinea pigs. Methods: The study was conducted in Andahuaylas—Perú, in an experimental period of 6 weeks. Five guinea pigs were randomly assigned to each diet treatment (30% chicory–70% lucerne, 30% plantain–70% lucerne, 50% chicory–50% lucerne, 50% plantain–50% lucerne, and 100% lucerne as a control). Growth, production, and carcass yield were measured. Covariance analysis was performed using R software, and the means were compared using Dunnett's method (α=0.05). Results: Diets with chicory (30%–50%) improved the final live weight, weight gain, feed conversion ratio, and hot carcass weight, whereas diets with plantain (30%) improved the final live weight, dry matter intake, feed conversion ratio, and carcass weight compared with diets with 100% lucerne. Conclusion: Chicory and plantain can optimize the growth, production, and hot carcass weight of guinea pigs in high Andean areas, surpassing traditional lucerne diets.