03071naa a2200229 a 450000100080000000500110000800800410001910000220006024501210008226000090020352022930021265300240250565300190252965300240254865300380257265300170261065300120262770000160263970000170265570000190267277301500269111256382016-10-24       2016    bl uuuu     u00u1 u    #d1 aBALDISSERA, T. C.  aEvaluation of Salicaceae trees for utilization as live post fences and pasture afforestation.h[electronic resource]  c2016  aThe use of live fence posts presents various benefits to use as pasture afforestation. These benefits can be considered such as: improvement in the animal welfare and increase of animal productivity; mitigation of greenhouse gases; soil protection; reduction of costs and risks associated with the use of treated wood for fences; wood supply to the farm; finally as contribution to improve the cattle's farm image with consumers. As an additional advantage, the technology has the potential to significantly reduce the isolation time of the animal access to the pasture area compared to the trees introduction using seedlings. Although this is an already practice adopted in tropical regions, and even in coastal regions of the South, in areas with frost occurrence in the states of Paran??, Santa Catarina and Rio Grande do Sul, there are no species recommendation for this practice. Preliminary evaluations conducted by Epagri - Experimental Station of Lages, indicate the genus Salix with potential for this purpose, species of this genus is used for wood and pulp production in other countries. Tree species such as maple and poplar are traditionally used in the construction of windbreaks, trees gardens and squares and as tutors in staking orchards. Little information is available about the suitability of these species as live fence posts to build ruminants containment fences or the rooting capacity of wood cuttings. To assess the potential of Salix nigra L. (black willow), Populus nigra L. (alamo) and Platanus acerifolia Ait (Ayrton) Willdenow (maple) as living fence posts to build ruminant containment fences and pasture afforestation, giant cuttings (2.5-15 cm φ x 290cm length) were planted in place of fence installation / recovery with three repetitions of 12 cuttings of each species per repetition. It was assessed: survival of the cuttings, branch number and length of the largest branch. 150 days after planting, the black willow showed 100% survival, average of 21 branches per plant and longer branch with 128 cm. Alamo and maple presented, respectively: 53 and 16% of survival; 13 and 14 branches per plant; and 70 and 40 cm length of longer branches. Salix nigra appears as highly promising species for use as a living fence post and pasture afforestation.  aanimal productivity  aanimal welfare  agiant tree cuttings  aintegrated crop livestock systems  aplant growth  arooting1 aRECH, T. D.1 aSILVA, M. M.1 aRONSANI, A. L.  tIn: REUNI??O ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 53., 2016, Gramado, RS. Resumos... Vi??osa, MG: Sociedade Brasileira de Zootecnia, 2016.