Biomass production from seven tree and shrub species and its acceptance by sheep in Las Tunas province

Manuel Asterio Ross Ballester

ABSTRACT
With the objective of evaluating the production of biomass of seven arboreal species and bush and their acceptance for the livestock sheep, the present investigation in the times dries and rainy, during the campaigns 2005-2006 and 2006-2007, on a soil Leached Reddish Brown Fersialítico in the Basic Unit of Production Cooperative Combat of Levanón", in the municipality The Tunas, county of the same name, to an approximate altitude of 50 msnm was carried out. The varieties mulberry, poppy, stick linden, Cuban pinenut, locust of scent, cat tail and leucaena were evaluated. Parcels were used formed by furrows of 6,0 m of long and 4,0 m of wide, for a total area of 24 m2, distributed at random in a design of blocks with three replicas. 160 plants were sowed by parcels, at a distance of 0,30 m between plants and 0,50 m among arrays. They were carried out two courts in both times, being evaluated the production of green and dry mass in leaves, tender and woody shafts. The consumption of each species was also determined on the part of the livestock sheep. An analysis of factorial variance of fixed effects was applied and of aleatory effects to decompose the variance total Phenotypic. Were the multiple comparisons of stockings carried out for the test of Tukey for P≤0,05. The results showed answers different from the species in the evaluated times. The species more consumed by the animals it was the Leucaena and the atmosphere had a superior contribution to 77 % in the variation total phenotypic.