Cellulolytic and Butyrivibrio fibrisolvens bacteria population density, after supplementing fodder diets (Pennisetum clandestinum)
Journal Title: Revista MVZ Cordoba - Year 2015, Vol 20, Issue 3
Abstract
Objective. Determine the population density of cellulolytic bacteria, Butyrivibrio fibrisolvens and the concentration of vaccenic acid, by supplementing diets consisting of kikuyu grass (Pennisetum clandestinum Hoechst. Ex Chiov.) as base ingredient, together with cassava flour and biomass (effluent from ethanol production) in rumen simulator-Rusitec. Materials and methods. Four treatments (T) were evaluated, these were composed as: T1/Control 1: 100% kikuyu grass with a total protein intake of 23.9%, T2: a mixture of 70% kikuyu grass, 20% biomass and 10% cassava flour with a total protein intake of 19.4%; T3/Control 2: 100% kikuyu grass, with a 17.8% protein intake and T4: 70% kikuyu grass, 20% biomass and 10% cassava flour with a 15.3% protein intake. One and two-way variance analysis was made and the Pearson correlation coefficient was determined. Results. An increase was observed in the population density of viable cellulolytic bacteria (CFU/ml) and B. fibrisolvens statistically significant (p<0.005) with treatment T2, in contrast to T1, T3 and T4 treatments. In addition, there was a significant increase in the concentration of vaccenic acid (mg/L) in the ruminal content in Rusitec with the same treatment (T2). Conclusions. Results obtained in this ruminal simulation study are evidence to the benefits of kikuyu grass together with cassava flour and biomass diet implementation on the growth of ruminal cellulolytic and B. fibrisolvens bacteria, as well as on the production of vaccenic acid. The study also suggests the nutritional potential that such supplements could provide to grazing bovine feeding.
Authors and Affiliations
Licet Molina G, M. Sc| Universidad de Antioquia, Escuela de Microbiología, Grupo de Investigación en Microbiología Veterinaria, Calle 67 # 53-108, AA 1226. Medellín, Colombia., Luis Giraldo V, P. hD| Universidad Nacional de Colombia, Facultad de Ciencias Agrarias, Departamento de Producción Animal, Grupo Biotecnología Ruminal y Silvopastoreo “BIORUM”, Calle 59A No 63-20. Medellín, Colombia., Diana Polanco E, M. Sc| Universidad de Antioquia, Escuela de Microbiología, Grupo de Investigación en Microbiología Veterinaria, Calle 67 # 53-108, AA 1226. Medellín, Colombia., Lina Gutiérrez B, Ph. D *| Universidad de Antioquia, Escuela de Microbiología, Grupo de Investigación en Microbiología Veterinaria, Calle 67 # 53-108, AA 1226. Medellín, Colombia.Escuela de Ciencias de la salud, Facultad de Medicina; Universidad Pontificia Bolivariana; Sede Central Medellín; Calle 78B N°72A-109, Medellín, Colombia.Correspondence: liangutibui@gmail.com
Keywords
Related Articles
- EP ID EP3455
- DOI -
- Views 396
- Downloads 18
Aflatoxicosis in chinchillas (Chinchilla lanigera)
Objetive. To determine the effects of dietary aflatoxins (AF) on chinchillas (Chinchilla lanigera). Materials and methods. A total of 20 male chinchillas were distributed in 5 experimental groups of 4 animals each. Anima...
Validation of models with constant bias: an applied approach
Objective. This paper presents extensions to the statistical validation method based on the procedure of Freese when a model shows constant bias (CB) in its predictions and illustrate the method with data from a new mech...
Effects of different dietary of protein and lipid levels on the growth of freshwater prawns (Macrobrachium carcinus) broodstock
Objective. Evaluate the effects of varying dietary protein and lipid levels on the growth and body composition of adult freshwater prawns, Macrobrachium carcinus (Linnaeus 1758), in a recirculation system for 11 weeks (7...
Performance of growing swines fed with a diet containing rice subproducts
Objective. To evaluate the performance of swines fed with rice sub products during the growing fase. Materials and methods. Forty hybrid piglets of 31.26 ± 4.62 kg, were allotted to 5 groups an experimental randomized bl...
EVALUACIÓN DEL FRÍJOL CAUPÍ (Vigna unguiculata) COMO INGREDIENTE PROTEICO EN DIETAS PARA POLLOS DE ASADERO
Two levels of Cowpea (10 and 20%) with two different presentation (raw and cooked) were used to evaluate weight gain, feed intake and feed conversion rate in commercial broilers, compared to a control diet. There were no...