Evaluation of different designs of temporary electric fence systems for the protection of maize against wild boar (Sus scrofa L., Mammalia, Suidae) | Ucinkovitost razlicnih postavitev zacasne elektroograje pri varovanju koruznih njiv pred divjim prasicem (Sus scrofa L., Mammalia, Suidae)
2008
Vidrih, M., Ljubljana Univ. (Slovenia). Biotechnical Fac., Agronomy Dept. | Trdan, S.
Among free living animals in Slovenia, wild boar (Sus scrofa) damages agricultural land by rooting and primarily by directly feeding on open fields. In some areas of Slovenia this large wildlife animal causes more than 50% of all estimated damage to cultivated plants grown on arable and forage fields. Many techniques for controlling wild boar and preventing damage are known, but none of them is optimal. In a trial for preventing wild boar ingress into maize fields different designs of electric fence system were used. The trial in which we used an electric fence to prevent wild boar from entering a maize field was erected in the area of Smihel near Postojna (Slovenia). We decided to erect the electric fence at the end of July, after the fertilization of the maize. The following designs of electric fence systems were used: 1) a plastic post with a polywire and two polytapes with spacings of 15, 15, and 30 cm between them; 2) a plastic post with polywire and a polytape with spacings 25 and 25 cm between them; 3) a steal post as a wire offset in an inverted L shape on which three screws on rod insulators were fixed at a height of 15, 30, and 55 cm from the ground. A polytape at a height of 30 cm acted as depth and it was a so-called three-dimensional design of electric fence. No breaks through fencing were observed until the harvesting time of the maize for silage, although boar tracks on the outside of the fenced field were observed. Damage to arable fields in the vicinity of the protected field was also recorded.
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