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1.
rev. udca actual. divulg. cient ; 26(2): e2423, jul.-dic. 2023. tab, graf
Article in English | LILACS-Express | LILACS | ID: biblio-1576967

ABSTRACT

ABSTRACT Small ruminant production is currently booming due to its ease of management and contribution to strengthening the food security of rural communities. In this experiment, it was evaluated the effect of feeding with Cenchrus purpureus silages in a mixture with Tithonia diversifolia on the carcass yield and bromatological quality of lambs, with an average weight of 23 kg, fed with silages (treatments): T1 C. purpureus in 100 % and T2 C. purpureus/T. diversifolia in proportion of 67/33 %, respectively. The silages were supplied for 61 days, with an energy supplement of rice flour (277 g/animal), mineralized salt, and water ad libitum. Carcass yield and food consumption were evaluated. The data was analyzed in a totally randomized design with five repetitions; an ANOVA was made and for the comparison of means, the Fisher LSD test was used. The average daily consumption of dry matter was better for T2 showing statistical differences (p <0.0001), the characteristics of the carcass in this treatment were also better; significant differences were found in the nutritional value of the meat, showing better values in T2, for protein, humidity and for the colorimetric variables, because T1, exhibited darker meat, coinciding with the highest pH values (6.15). It is concluded that the C. purpureus silage diet in mixture with T. diversifolia, contributes to the improvement of the quality of the carcass.


RESUMEN La producción de pequeños rumiantes es conocido por su facilidad de manejo y contribución al fortalecimiento de la seguridad alimentaria de comunidades rurales; sin embargo, debido a la baja calidad nutricional de las pasturas del trópico seco, esta industria experimenta problemáticas relacionadas con el producto final, lo que repercute en la productividad y el rendimiento. En este experimento, se evaluó el efecto de la alimentación con ensilajes de Cenchrus purpureus, en mezcla con Tithonia diversifolia, en el rendimiento en canal y calidad bromatológica de la carne de corderos, con peso promedio de 23 kg, alimentados con ensilajes (tratamientos): T1 C. purpureus, en 100 % y T2 C. purpureus/T. diversifolia, en proporción de 67/33 %, respectivamente. Los ensilajes, se suministraron durante 61 días, con un complemento energético de harina de arroz (277 g/animal), sal mineralizada y agua a voluntad. Se evaluó rendimiento en canal y consumo de alimento. Los datos, se analizaron en un diseño totalmente al azar, con cinco repeticiones; se hizo un ANDEVA y para la comparación de medias, se empleó la prueba de LSD Fisher. Se evaluó el consumo promedio diario de MS, los valores para rendimiento en canal y las características de la canal, además del valor nutricional de la carne. Se concluye que la dieta de ensilaje C. purpureus en mezcla con T. diversifolia, contribuye al mejoramiento de la calidad de la canal.

2.
Rev. luna azul ; (29): 18-24, dic. 2009. ilus
Article in Spanish | LILACS | ID: lil-635743

ABSTRACT

En el presente trabajo se presentan los resultados de un ensayo en el cual se evaluó la efectividad de la inoculación del hongo Trichoderma spp, en una vermicomposta comercial, comparándose ésta con la población del hongo presente en un vermicompost sin inocular. El experimento se realizó en el laboratorio de postcosecha de la Universidad de Costa Rica. Se desarrolló en tres fases (cultivo, aislamiento e inoculación de cepas del hongo) y se utilizaron tres vermicompostas comerciales elaboradas a partir de un sustrato de broza de café, procedentes de diferentes composteras. Los resultados muestran que no hubo aumento ni disminución de la población de Trichoderma como producto de la inoculación de cepas del mismo.


In tThis paper, presents the results are presented onof the growthefectiveness of the Trichoderma fungus in a inoculation in a commercial vermicompost, in comparison with the fungus from a vermicompostand without inoculation. In a three-phase laboratory process (cultivation, isolation and inoculation of fungal strains), three different commercial vermicompost, prepared from coffee pulp, have beenwere used, coming from three different commercial vermicomposts. The results of experiments carried out in the Post-Harvest Laboratory of the Universidad de Costa Rica, don’t show any increase or decrease of the Trichoderma population after inoculation. The experiment was carried out in the Post -harvest Laboratory of University of Costa Rica. It was developed following three phases, using three commercial vermicompost prepared with broza of coffee. Results showed no differences in Trichoderma population as product of inoculation of it into the compost.


Subject(s)
Humans , Trichoderma , Composting , Population Dynamics , Fungi
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