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13 resultados encontrados para: TEMA: Pennisetum purpureum
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1.
- Artículo con arbitraje
Resumen en: Inglés |
Resumen en inglés

The objective of this study was to evaluate the effects of inclusion of tropical tree foliage on intake, digestibility, and nitrogen balance in sheep fed with a diet based on fresh chopped Pennisetum purpureum. Four male Pelibuey sheep were used, with an average live weight of 22 ± 1.5 kg, distributed in a (4 × 4) Latin square design. Treatments were P. purpureum (T1), P. purpureum + Brosimum alicastrum (T2), P. purpureum + Guazuma ulmifolia (T3), and P. purpureum + Piscidia piscipula (T4). Tree foliage was incorporated into the ration at a proportion rate of 300 g/kg of dry matter (DM). Intake, digestibility, and nitrogen balance were measured during 24 h periods for 7 days. DM intake, organic matter (OM), and crude protein (CP) intakes were not affected (P > 0.05) by including tree foliage (an average of 892.7, 784.2, and 88.9 g/day, respectively). OM and CP digestibility was similar among treatments (P > 0.05). Nevertheless, digestibility of DM and NDF was lower (P < 0.05) in T2 and T4 than in T1 (DM = 570, 560, and 662.5 g/kg; NDF = 687.0, 650.9, and 772.1 g/kg, respectively). We conclude that providing 30% of the ration in DM of foliage of B. alicastrum, G. ulmifolia, and P. piscipula improves CP intake and reduces NDF intake, thereby improving digestibility of OM, CP in sheep, which indicates that the foliage of these tree species may be used as a protein supplement during the dry season in tropical regions.


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Resumen en: Español | Inglés |
Resumen en español

El objetivo del trabajo fue evaluar el efecto de la incorporación de diferentes fuentes de saponinas sobre la producción total de gas in vitro (GT) y la producción de metano ruminal (CH4), la cinética de fermentación, la digestibilidad de materia seca (DIVMS) y digestibilidad de la materia orgánica (DIVMO). Los tratamientos evauados fueron la interacción de tres concentraciones (3.5, 7.0 y 14.0 mg/g de materia seca) de saponinas de Yucca schidigera (YS), Gliricidia sepium (GS), Enterolobium cyclocarpum (EC) y un control (Pennisetum purpureum [PP] solo). Se incubó una muestra de 1,0 g de cada tratamiento in vitro en un diseño completamente al azar con arreglo factorial con tres repeticiones por tratamiento. GT de PP no se vio afectado (P> 0.05) por la inclusión de saponinas de YS, GS y EC. La producción de metano no fue afectada (P> 0.05) por ningún nivel de inclusión de saponinas de YS. Cuando las saponinas de GS y EC se incorporaron a concentraciones de 7.0 y 14.0 mg/g de MS, la producción de metano se incrementó (P <0,05). DIVMS y DIVMO aumentaron significativamente (P <0.05) con todas las fuentes de saponinas, excepto con las de YS a una concentración de 14 mg/g de MS cuando la DIVMO se redujo (P <0.05). Se concluye que las saponinas de las diferentes plantas tropicales no redujeron la producción de metano en condiciones in vitro.

Resumen en inglés

The aim of the work was to assess the effect of incorporation of different sources of saponins on the in vitro total gas (TG) and ruminal methane (CH4) productions, kinetics of fermentation, digestibility of dry matter (IVDDM) and organic matter (IVDOM). Treatments were interaction of three concentrations (3.5, 7.0 and 14.0 mg/g dry matter) of saponins from Yucca schidigera (YS), Gliricidia sepium (GS), Enterolobium cyclocarpum (EC) and a control (Pennisetum purpureum [PP] alone). A sample of 1.0 g of each treatment was incubated in vitro in a complete randomized design with factorial arrangement with three replicates per treatment. TG from PP was unaffected (P>0.05) by the inclusion of saponins from YS, GS and EC. Methane production was not affected (P>0.05) by any saponins from YS at any level of inclusion. When saponins from GS and EC were incorporated at concentrations of 7.0 and 14.0 mg/g DM, methane production was increased (P<0.05). IVDDM and IVDOM were significantly increased (P<0.05) with all sources of saponins, except with those from YS at concentration of 14.0 mg/g DM when IVDOM was reduced (P<0.05). It is concluded that saponins from different tropical plants did not reduce methane production under in vitro conditions.


3.
- Artículo con arbitraje
Resumen en: Inglés |
Resumen en inglés

The objective of this study was to evaluate the influence of tree foliage species supplemented in ruminant diets based on Pennisetum purpureum on the in vitro digestibility and fermentation, microbial biomass synthesis and enteric methane production. Seven experimental diets were evaluated, including a control treatment based on P. purpureum (PT) grass, and six additional treatments supplemented with 30.0% foliage from Neomillspaughia emargiata (NE), Tabernaemontana amygdalifolia (TA), Caesalpinia gaumeri (CG), Piscidia piscipula (PP), Leucaena leucocephala (LL) and Havardia albicans (HA). A randomised complete block design repeated in two periods (block) was used. The highest gas production (P < 0.05) was recorded in treatments TA and PT (237 and 228 mL g−¹, respectively). The highest in vitro digestibility of dry matter (IVDMD) and organic matter (IVOMD) (P < 0.05) was recorded in the control treatment PT (57.9% and 66.1%, respectively). Treatments LL, NE, TA and PP promoted greater microbial biomass synthesis (290, 223, 220 and 213 mg g−¹, respectively) (P < 0.05). The proportion of propionic acid also increased in these latter treatments and in treatments CG and HA (P < 0.05). Additionally, treatments LL, PP, NE and TA decreased methane production (25.8, 29.5, 30.6 and 31.8 L kg−¹ of digested dry matter, respectively). In conclusion, supplementation with L. leucocephala, P. piscipula, N. emargiata and T. amygdalifolia in ruminant diets based on P. purpureum is one feed alternative that can promote greater efficiency and synthesis of microbial biomass, increase the proportions of propionic and butyric acid and decrease the production of enteric methane by 15.6 to 31.6%.


4.
- Capítulo de libro con arbitraje
*Solicítelo con su bibliotecario/a
Efecto de la inclusión de taninos condensados de quebracho sobre el patrón de fermentación y producción de metano en novillas alimentadas con Pennisetum purpureum
Piñeiro Vázquez, Ángel Trinidad ; Chay Canul, Alfonso Juventino (coaut.) ; Casanova Lugo, Fernando (coaut.) ; Sanginés García, José Roberto (coaut.) ; Aguilar Urquizo, Edgar (coaut.) ; Canul Solís, Jorge Rodolfo (coaut.) ; Jiménez Ferrer, Guillermo (coaut.) ; Ku Vera, Juan Carlos (coaut.) ;
Contenido en: Avances de la investigación sobre producción animal y seguridad alimentaria en México Morelia, Michoacán, México : Universidad Michoacana de San Nicolás de Hidalgo, 2018 p. 725-730
Nota: Solicítelo con su bibliotecario/a
Resumen en español

El objetivo del trabajo fue evaluar el efecto de los taninos condensados de quebracho (TCQ) sobre el consumo de alimento, la digestibilidad de la materia seca (MS) y las emisiones de metano (CH4) en novillas alimentadas con pasto Pennisetum purpureum de baja calidad. Cinco vaquillas (Bos taurus × Bos indicus) con un peso vivo promedio (PV) de 295 ± 19 kg se asignaron a cinco tratamientos (0, 1, 2, 3 y 4% TCQ/kg DM) en un diseño en cuadrado latino de 5 x 5. El consumo, la digestibilidad y las emisiones de metano (L/día) se registraron durante períodos de 23 h, cuando se encontraban dentro de las cámaras de respiración de circuito abierto. El consumo de materia seca (CMS); consumo de materia orgánica (CMO); la digestibilidad de la materia seca (DMS); y la digestibilidad de la materia orgánica (DMO) fue diferente entre tratamientos con 0 y 4% de TCQ/kg de MS (P <0.05). La proporción molar de propionato aumentó linealmente (P<0.01) para tratamientos con TCQ de 3 y 4%. disminuyó linealmente (P<0.01) cuando TCQ aumentó en la dieta, particularmente con en concentración de 3 y 4%. Se concluye que la adición de TCQ en 2 o 3% en la ración puede disminuir la producción de metano de 29 a 41% respectivamente, sin comprometer significativamente el consumo de alimento y la digestibilidad de los nutrientes.

Resumen en inglés

The aim of the work was to evaluate the effect of quebracho tannins condensed (QTC) on feed intake, dry matter (DM) digestibility and methane (CH4) emissions in cattle fed low-quality Pennisetum purpureum grass. Five heifers (Bos taurus × Bos indicus) with an average live weight (LW) of 295 ± 19 kg were allotted to five treatments (0, 1, 2, 3 and 4 % QTC /kg DM) in a 5 x 5 Latin square design. Intake, digestibility and methane emissions (L/day) were recorded for periods of 23 h when cattle were housed in open-circuit respiration chambers. Dry matter intake (DMI); organic matter intake (OMI); dry matter digestibility (DMD); and organic matter digestibility (OMD) was different between treatments with 0 and 4% of QTC /kg DM (P<0.05). The molar proportion of propionate increased linearly (P<0.01) for treatments with 3 and 4 % QTC. Total CH4 production decreased linearly (P<0.01) as QTC increased in the diet, particularly with 3 and 4 % concentration. It is concluded that the addition of QTC in 2 or 3% in the ration can decrease the production of methane from 29 to 41% respectively, without significantly compromising the intake of food and the digestibility of nutrients.


5.
- Artículo con arbitraje
Resumen en: Inglés |
Resumen en inglés

The aim of this work was to evaluate the effect of quebracho tannins extract (QTE) on feed intake, dry matter (DM) digestibility, and methane (CH4) emissions in cattle fed low-quality Pennisetum purpureum grass. Five heifers (Bos taurus × Bos indicus) with an average live weight (LW) of 295 ± 19 kg were allotted to five treatments (0, 1, 2, 3, and 4% QTE/kg DM) in a 5 × 5 Latin square design. Intake, digestibility, and total methane emissions (L/day) were recorded for periods of 23 h when cattle were housed in open-circuit respiration chambers. Dry matter intake (DMI), organic matter intake (OMI), dry matter digestibility (DMD), and organic matter digestibility (OMD) were different between treatments with 0 and 4% of QTE/kg DM (P < 0.05). Total volatile fatty acid and the molar proportion of acetate in the rumen was not affected (P < 0.05); however, the molar proportion of propionate increased linearly (P < 0.01) for treatments with 3 and 4% QTE. Total CH4 production decreased linearly (P < 0.01) as QTE increased in the diet, particularly with 3 and 4% concentration. When expressed as DMI and OMI by CH4, production (L/kg) was different between treatments with 0 vs 3 and 4% QTE (P < 0.05). It is concluded that the addition of QTE at 2 or 3% of dry matter ration can decrease methane production up to 29 and 41%, respectively, without significantly compromising feed intake and nutrients digestibility.


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Resumen en: Español | Inglés |
Resumen en español

El objetivo fue evaluar el efecto de los taninos condensados (TC) contenidos en el follaje de arbóreas tropicales, sobre el consumo de materia seca y orgánica (CMS, CMO), la digestibilidad de la materia seca (DMS) y emisiones de metano (CH4) en ovinos alimentados con una ración basal de pasto Pennisetum purpureum. Cuatro ovinos de pelo con un peso vivo promedio de 21.6±2.0 kg se sometieron a cuatro tratamientos en un diseño cuadro latino 4 x 4. Los tratamientos fueron P. purpureum (PP), P. purpureum + Havardia albicans (PPHA), P. purpureum + Bursera simaruba (PPBS), y P. purpureum + Acacia pennatula (PPAP); el follaje de las arbóreas se incluyó en 300 g/kg de MS de la ración. El consumo, la digestibilidad y la producción total de metano entérico se midieron por periodos de 23 h. La producción de metano se midió en cajas de respiración de circuito abierto. El consumo y digestibilidad de la MS y materia orgánica (MO) entre los tratamientos PP, PPHA, PPBS y PPAP no se afectaron por la inclusión de los follajes de arbóreas en la ración (P>0.05). Cuando la producción de CH4 se expresó en L/kg del CMS, CMO o consumo de fibra detergente neutro los resultados fueron similares entre tratamientos (PP, PPHA, PPBS y PPAP) (P>0.05). Se concluye que los TC contenidos en el follaje de Havardia albicans, Acacia pennatula y Bursera simaruba no afectaron las emisiones de CH4 al nivel de incorporación de 30 % de la MS; tampoco se observaron efectos en el CMS, CMO, DMS y concentración molar de ácidos grasos volátiles.

Resumen en inglés

The aim of the work was to evaluate the effect of condensed tannins (CT) containing in the foliage’s on dry matter intake and organic matter (DMI and OMI), dry matter digestibility (DMD) and methane (CH4) emissions in sheep fed a basal ration of Pennisetum purpureum grass. Four hair sheep with an average live weight of 21.6±2.0 kg were allotted to four treatments in a 4 x 4 latin square design. The treatments were P. purpureum (PP), P. purpureum + Havardia albicans (PPHA), P. purpureum +Bursera simaruba (PPBS), and purpureum + Acacia pennatula (PPAP), the foliage of tree was included 300 g/kg DM of the ration. Intake, digestibility of DM and total methane emissions (L/d) were recorded for periods of 23 h when sheep were housed in open-circuit respiration head boxes. Intake and digestibility of the dry matter (DM) and organic matter (OM) between treatments PP, PPHA, PPBS and PPAP, were not affected by inclusion the foliage’s of trees in the ration (P>0.05). When the production of methane was expressed in L/kg of DMI, OMI or neutral detergent fiber intake, the results were similar between treatments (PP, PPHA, PPBS, PPAP) (P>0.05). It is concluded that CT contained in the foliage of Havardia albicans, Acacia pennatula y Bursera simaruba not affected the CH4 emissions an levels of incorporation as 30 % of ration DM, since there are no effects on DMI, OMI, DMD and molar concentration of volatile fatty acids.


7.
- Artículo con arbitraje
*Solicítelo con su bibliotecario/a
Energy utilization, nitrogen balance and microbial protein supply in cattle fed Pennisetum purpureum and condensed tannins
Piñeiro Vázquez, Ángel Trinidad (coaut.) ; Canul Solís, Jorge Rodolfo (coaut.) ; Alayón Gamboa, José Armando (coaut.) ; Chay Canul, Alfonso Juventino (coaut.) ; Ayala Burgos, Armín Javier (coaut.) ; Solorio Sánchez, Francisco Javier (coaut.) ; Aguilar Pérez, Carlos Fernando (coaut.) ; Ku Vera, Juan Carlos (coaut.) ;
Contenido en: Journal of Animal Physiology and Animal Nutrition Vol. 101, no. 1 (February 2017), p. 159-169 ISSN: 0931-2439
Nota: Solicítelo con su bibliotecario/a
Resumen en: Inglés |
Resumen en inglés

The aim of the experiment was to assess the effect of condensed tannins (CT) on feed intake, dry matter digestibility, nitrogen balance, supply of microbial protein to the small intestine and energy utilization in cattle fed a basal ration of Pennisetum purpureum grass. Five heifers (Bos taurus × Bos indicus) with an average live weight of 295 ± 19 kg were allotted to five treatments consisting of increasing levels of CT (0, 1, 2, 3 and 4% CT/kg DM) in a 5 × 5 Latin square design. Dry matter intake (DMI) was similar (p > 0.05) between treatments containing 0, 1, 2 and 3% of CT/kg DM and it was reduced (p < 0.05) to 4% CT (5.71 kg DM/day) with respect to that observed with 0% CT (6.65 kg DM/day). Nitrogen balance, purine derivatives excretion in urine, microbial protein synthesis and efficiency of synthesis of microbial nitrogen in the rumen were not affected (p > 0.05) by the increase in the levels of condensed tannins in the ration. Energy loss as CH4 was on average 2.7% of the gross energy consumed daily. Metabolizable energy intake was 49.06 MJ/day in cattle fed low-quality tropical grass with a DMI of 6.27 kg/day. It is concluded that concentrations of CT between 2 and 3% of DM of ration reduced energy loss as CH4 by 31.3% and 47.6%, respectively, without affecting intakes of dry and organic matter; however, digestibilities of dry and organic matter are negatively affected.


8.
- Artículo con arbitraje
Resumen en: Inglés |
Resumen en inglés

The aim of this study was to assess the e ff ect of the inclusion of Leucaena leucocephala on dry matter (DM) intake and digestibility, nitrogen (N) balance and energy utilization in cattle fed a basal ration of Pennisetum purpureum and housed in metabolic crates. Five crossbred ( Bos taurus × Bos indicus ) heifers (BW: 295 ± 6 kg) were fed chopped P. purpureum grass and fi ve increasing levels of L. leucocephala (0, 20, 40, 60 and 80% of DM) in a 5 × 5 Latin square design. The intake of DM was similar (P > 0.05) among treatments, with an average of 7.03 kg of DM/ day. While the crude protein intake (CPI) linearly increased (P < 0.001) with the inclusion of L. leucocephala , the DM digestibility (average 492.3 g/kg DM) and OM digestibility (average 501.6 g/kg OM) were not a ff ected (P > 0.05) by the incorporation of L. leucocephala into the ration. The N intake and excretion in the urine increased linearly (P = 0.0001, 0.0001) as the level of L. leucocephala in the ration increased. In addition, methane energy loss as a percentage of that in the control ration, was of only 61% (P = 0.0005) with 80% incorporation of L. leucocephala in the ration. We concluded that the inclusion of L. leucocephala has the capacity to reduce energy losses in the form of methane emissions. Nevertheless, the energy losses in the urine increased with the addition of L. leucocephala to the ration, with the optimal levels of incorporation in the ration fl uctuating between 20 and 40% of the ration DM, which had no e ff ects on the dry matter intake (DMI), organic matter intake (OMI) or the digestibility of dry matter (DMD).


Resumen en: Inglés |
Resumen en inglés

The aim of the work was to determine the effect of increasing concentrations of saponins from Yucca schidigera in the diet on voluntary intake, rumen fermentation and methane (CH4) production in Pelibuey sheep fed a tropical grass Pennisetum purpureum. Five male sheep (32.2 ± 1.1 kg liveweight) were fed chopped P. purpureum grass in a 5 × 5 Latin square design. Sheep were supplemented with 0.0, 1.5, 3.0, 4.5 or 6.0 g per day of saponins from Y. schidigera mixed with ground corn, before the grass was offered. Feed intake, feed refusal and total faecal output were recorded for 20 days of the adaptation period and 5 days of the experimental period. Apparent digestibility of dry matter (DMD), organic matter (OMD), neutral detergent fibre (NDFD) and acid detergent fibre (ADFD) were determined. Ruminal methane emission was estimated using stoichiometric balance and the molar proportion of volatile fatty acids was determined by gas chromatography. Voluntary intake, DMD, OMD, NDFD, ADFD, volatile fatty acids and CH4 emission were not affected (P > 0.05) by increasing inclusion levels of saponins in the ration of sheep. Nonetheless, CH4 production increased as the voluntary intake of NDF augmented. Addition of 6 g of saponins per day as a supplement to Pelibuey sheep fed a tropical grass did not affect voluntary intake and digestibility of DM, OM, NDF and ADF, or ruminal methane production.


10.
Libro - Memoria de residencia profesional
Engorda de ovinos bajo un sistema silvopastoril en el municipio de Centro, Tabasco / Alma Nury Izquierdo Domínguez, José Leobardo Gutiérrez Sánchez
Izquierdo Domínguez, Alma Nury ; Gutiérrez Sánchez, José Leobardo (coaut.) ; Zulueta Rodríguez, José Manuel (asesor) ; Villanueva López, Gilberto (asesor) ;
Villa Ocuiltzapotlán, Centro, Tabasco, México : Instituto Tecnológico de la Zona Olmeca , 2009
Clasificación: ME/634.99097263 / I9
Bibliotecas: Villahermosa
Cerrar
SIBE Villahermosa
ECO050004898 (Disponible)
Disponibles para prestamo: 1