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handle: 10261/98971 , 10261/258938
[ES] La falta de forraje freco en las Islas Canarias, es un inconveniente para el desarrollo de la ganadería, por lo cual se importan 2/3 de la alimentación de los rumiantes. Esta dependencia del exterior supone no solo un problema económico sino también estratégico para las explotaciones ganaderas. El objetivo de este trabajo fue estudiar el contenido de constituyentes orgánicos (fibras y proteína) y digestibilidad de cinco especies de interés forrajero de la Reserva de Biosfera de Lanzarote (Atriplex halimus, Bituminaria bituminosa var. albomarginata, Coronilla viminalis, Echium decaisnei y Lotus lancerottensis). Utilizando semillas de poblaciones naturales de la Isla, se llevó a cabo un ensayo en parcela experimental, realizándose tres cortes (enero y junio de 2010 y enero de 2011). Se aplicó un diseño de parcelas divididas en el tiempo con un arreglo factorial en bloques al azar con 4 repeticiones por especie. Lotus lancerottensis presentó los nivles más altos de fibra neutro-detergente, fibra ácido-detergente y celulosa (42,4%; 36,4% y 18,3% respectivamente), así como los porcentajes más bajos de digestibilidad. Las especies con mayor contenido de proteína bruta fueron A. halimus y C. viminalis (16,6% y 15,3% respectivamente)
[EN] The scarcity of fresh forae in the Canary Islands is a disadvantage for the development of cattle raising. Consequently, two-thirds of the food used for ruminants has to be imported. This dependence from the outside implies not only economic but also strategic problems for cattle exploitation. The objective of this work was to study the organic costituent contents (fiber and protein) and digestibility of five native forage valuable specie from Lanzarote's Biosphere Reserve (Atriplex halimus, Bituminaria bituminosa var. albomarginata, Coronilla viminalis, Echium decaisnei and Lotus lancerottensis). Using seeds form natural populations of the island, an experimental plot was performed in Lanzarote Island and three cuttings were carried out (January/June 2010 and January 2011). A design with divided parcels in time with factorial analysis in random blocks with four repetitions per specie was applied. Lotus lancerottensis showed the highest levels of neutral-detergent fiber, acid-detergent fiber and cellulose (42.4%; 34.4% and 18.3%, respectively), and the lowest percentage of digestibility. The species with higher crude protein content were A. halimus and C. viminalis (16.6% and 15.3% respectively)
8 páginas, 1 tabla. -- Colaboración de Ana Carrasca Martín, María del Mar Duarte Martín, Alejandro Perdomo Placeres y Francisco Pino López
Este trabajo ha sido subvenciondo por la Fundación Biodiversidad (MARM) y el Excmo. Cabildo Insular de Lanzarote
Peer reviewed
Fibers, Islas Canarias, Proteins, Proteína, Canary Islands, Cultivated species, Especies cultivadas, Fibras, Fibers proteins
Fibers, Islas Canarias, Proteins, Proteína, Canary Islands, Cultivated species, Especies cultivadas, Fibras, Fibers proteins
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