2015
DOI: 10.21071/az.v64i245.370
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Consumo y digestibilidad en novillos cebuínos en un sistema silvopastoril intensivo

Abstract: La determinación del consumo voluntario de materia seca (CMS) por los animales, es indispensable para determinar su capacidad productiva y su estado nutricional. Existen muchas técnicas para la estimación del CMS, siendo una de ellas la técnica de n-alcanos la cual permite además estimar la selectividad de los forrajes consumidos. El presente trabajo tuvo como objetivo estimar el consumo voluntario y la excreción fecal de nutrientes por novillos cebuínos alimentados en un sistema silvopastoril intensivo (SSPi)… Show more

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Cited by 23 publications
(19 citation statements)
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“…Although leucaena shrubs planted at high density directly produced only 20% of the total DM/yr, through their N contribution, total DM production in the ISPS increased from 24 to 36 t/ha/yr. Thus, this system can produce up to 47% more biomass than treeless pastures (Calle et al 2013;Gaviria et al 2015). By incorporating leucaena and scattered trees on El Hatico farm, the use of chemical fertilizers was eliminated from the grazing system, which once relied on the application of 400 kg urea/ha/year (equivalent to 184 kg N).…”
Section: Intensive Silvopastoral Systems With Leucaena Leucocephala Fmentioning
confidence: 99%
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“…Although leucaena shrubs planted at high density directly produced only 20% of the total DM/yr, through their N contribution, total DM production in the ISPS increased from 24 to 36 t/ha/yr. Thus, this system can produce up to 47% more biomass than treeless pastures (Calle et al 2013;Gaviria et al 2015). By incorporating leucaena and scattered trees on El Hatico farm, the use of chemical fertilizers was eliminated from the grazing system, which once relied on the application of 400 kg urea/ha/year (equivalent to 184 kg N).…”
Section: Intensive Silvopastoral Systems With Leucaena Leucocephala Fmentioning
confidence: 99%
“…Animals grazing in ISPS including leucaena have DM intakes up to 30% higher than those grazing in conventional systems (Cuartas et al 2015). This could be a function of higher forage on offer in the ISPS, which can be up to 330% higher than that of conventional systems based only on tropical grass monocultures, allowing higher selectivity for the animals (Broom et al 2013;Gaviria et al 2015).…”
Section: Intensive Silvopastoral Systems With Leucaena Leucocephala Fmentioning
confidence: 99%
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“…In Eq. 4, φ is the annual cattle intake as estimated by Gaviria-Uribe et al (2015), and c is the annual cattle stock per EA x based on statistics (Fedegan 2014) (see Supplementary Material).…”
Section: Methodsmentioning
confidence: 99%
“…En el presente estudio se observa como a medida que avanza la complejidad estructural de los sistemas silvopastoriles (inclusión de especies arbustivas, arbóreas y maderables), incrementa la digestibilidad y la proteína cruda en la dieta consumida estimadas a partir del nitrógeno fecal. Diferentes autores han concluido que la inclusión de especies arbustivas en la dieta de los rumiantes contribuye a mejorar el aprovechamiento de la gramínea base, debido al incremento del contenido de proteína y de la digestibilidad en la dieta, probablemente asociado a su bajo contenido de FDN en las especies arbustivas (28,29,30).…”
Section: Tabla 3 Medias De Mínimos Cuadrados De La Composiciónunclassified