Tiller classes on signalgrass pasture according to the cattle droppings position

Authors

  • Manoel Eduardo Rozalino Santos Universidade Federal do Vale do São Francisco, Colegiado de Zootecnia, Petrolina, PE
  • Dilermando Miranda da Fonseca Universidade Federal de Viçosa, Departamento de Zootecnia, Viçosa, MG
  • Virgílio Mesquita Gomes Universidade Federal de Viçosa, Departamento de Zootecnia, Viçosa, MG
  • Thiago Gomes dos Santos Braz Universidade Federal de Viçosa, Departamento de Zootecnia, Viçosa, MG
  • Ronan Lopes Albino Universidade Federal de Viçosa, Departamento de Zootecnia, Viçosa, MG
  • Victor Valério de Carvalho Universidade Federal de Viçosa, Departamento de Zootecnia, Viçosa, MG

Keywords:

Brachiaria decumbens, tiller category, tiller population density, continuous stocking, grazing

Abstract

The experiment was carried out aiming to investigate the influence of natural deposition of cattle droppings on population density of several classes of tillers on the Brachiaria decumbens Stapf. cv. Basilisk pasture managed under continuous stocking. Two places on the same pasture were evaluated: one near (immediately adjacent) and one far, about 1.0 m, from the cattle droppings. Randomized block design with three repetitions was used. Tillers were classified according to the developmental stage, growth origin, defoliation rate and length. The number of vegetative tillers was higher (P<0.05) at the place that was far from the droppings (1.851 perfilhos/ m2) than at the one near them (848 perfilhos/m2). The number of reproductive tillers was higher (P<0.05) at the place near the droppings. Being near or far from the droppings showed no impact on the population density of dead tillers (584 perfilhos/m2 mean). The number of basal tiller and aerial tillers were higher (P<0.05) at the place far from the droppings, when collated to the place near the droppings. The population densities of both defoliated tillers and tillers without shoot meristem, far from the droppings, were higher (P<0.05), while the population density of nondefoliated tillers was higher (P<0.05) at the place found near the droppings. The shortest tillers were common (P<0.05) at the place far from the droppings, while the highest were frequently found (P<0.05) near the droppings. In the B. decumbens pasture under continuous stocking, deposition of droppings by cattle changes the spatial distribution of tillers categories and thus constitutes a factor causing spatial heterogeneity of vegetation.

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Published

2010-01-13

Issue

Section

FORAGE CROPS AND PASTURES

How to Cite

Tiller classes on signalgrass pasture according to the cattle droppings position. (2010). Bulletin of Animal Husbandry, 67(1), 73-80. http://35.198.24.243/index.php/bia/article/view/1082

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