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Acta Scientiarum. Animal Sciences

Print version ISSN 1806-2636On-line version ISSN 1807-8672

Abstract

SILVA, Viviane Santos da et al. Dynamics of Tifton 85 pasture (Cynodon dactylon L. Pers) over seeded with cool season species, under continuous grazing. Acta Sci., Anim. Sci. [online]. 2018, vol.40, e36363.  Epub June 11, 2018. ISSN 1806-2636.  http://dx.doi.org/10.4025/actascianimsci.v40i1.36363.

This study aimed to evaluate the effects of oat or ryegrass over seeding on the productive characteristics and morphological composition of Tifton85 grass under continuous grazing. The three studied treatments were: Oat + Tifton85, Ryegrass + Tifton85 and Tifton85, distributed in a completely randomized design, constituting four replications of area per treatment. The Ryegrass + Tifton85 treatment presented a forage mass 27% superior to the Oat + Tifton85 treatment. The leaf percentage of Tifton85 was superior for the treatment Oat + Tifton85 (41%), while the percentage of stem + sheath was superior in the treatment Ryegrass + Tifton85 (64%). There was a higher percentage of Tifton85 leaves in the treatment Oat + Tifton85, while the Ryegrass + Tifton85 treatment presented a higher proportion of the stem + sheath constituent. Overfeeding species of temperate climate has proven to be a viable alternative, since it potentiates the weight gain of animals without damaging the productive re-establishment of Tifton85.

Keywords : forage; grazing; oat; ryegrass; tropical pasture.

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