New Zealand Journal of Agricultural Research abstracts
Evaluation of endemic leguminous forage shrubs from the Canary
Islands. 3 Organic constituents and forage digestibility
E. Chinea
Escuela Técnica Superior de Ingeniería Agraria
Departamento de Edafología y Geología
Universidad de La Laguna
Tenerife (Islas Canarias)
Spain
echinea@ull.es
B. García-Criado
A. García-Ciudad
Instituto de Recursos Naturales y Agrobiología (IRNASA, CSIC)
Apdo. 257
Salamanca, Spain
Abstract From 1999 to 2000, four
leguminous shrub species
endemic to the Canary Islands, Chamaecytisus palmensis
(tagasaste), Teline canariensis, Teline osyrioides sericea
and Teline osyrioides osyrioides, were studied as a source of
animal forage in two different experiments. One experiment was carried
out on a crop planted at a density of 5142 shrubs/ha, established in La
Laguna (Tenerife, Spain) at 550 m a.s.l., with annual rainfall between
338 and 562 mm. The other experiment was carried out on self-sown
populations of the same species in their natural habitat on the island
of Tenerife. The seasonal changes in crude protein, neutral detergent
fibre (NDF), acid detergent fibre (ADF), cellulose, hemicellulose,
lignin, organic matter digestibility (OMD) and tannins, of the edible
dry matter (EDM) of four cultivated populations were studied. Cuts were
made at the end of each season. Cultivated populations of C.
palmensis had higher values of crude protein and OMD but lower
values of fibrous constituents than Teline species. Cultivated
species T. canariensis and T. o. osyrioides
had similar crude protein contents while T. o. sericea had
significantly lower values (P < 0.05). Cultivated T.
canariensis had NDF, ADF, cellulose and lignin levels
significantly lower than T. o. osyrioides while T.
o. sericea showed higher significant values.
Keywords acid detergent fibre; cellulose; Chamaecytisus
palmensis; crude protein; hemicellulose; lignin; neutral detergent
fibre; organic matter digestibility; shrubs; tannin; Teline
species
A04097; Online publication date 5 March 2008; Received 3 November
2004; accepted 14 November 2007
New Zealand Journal of Agricultural Research, 2008, Vol. 51:
13–23
0028–8233/08/5101–0013 © The Royal Society of New Zealand 2008
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