JP2008000066A - Fence for preventing variety of animals from intruding - Google Patents

Fence for preventing variety of animals from intruding Download PDF

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JP2008000066A
JP2008000066A JP2006172475A JP2006172475A JP2008000066A JP 2008000066 A JP2008000066 A JP 2008000066A JP 2006172475 A JP2006172475 A JP 2006172475A JP 2006172475 A JP2006172475 A JP 2006172475A JP 2008000066 A JP2008000066 A JP 2008000066A
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fence
animals
fence means
wild
outside
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Masao Inoue
雅央 井上
Kenichi Yoneda
健一 米田
Sotatsu Ekuremu
相達 阿呉夢
Takashi Oda
隆司 尾田
Hideto Oda
英登 尾田
Kazuki Kobayashi
一木 小林
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TIGER KK
Nara Prefecture
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TIGER KK
Nara Prefecture
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a fence for preventing variety of animals from intruding, which enables work saving installation and maintenance, and has a high effectiveness against a variety of animals. <P>SOLUTION: This fence having double fences is provided by adopting a physically intrusion-blocking material 11 as an outside-fencing means 10 and a visually intrusion-blocking material 21 as an inside-fencing means 20. Also the outside-fencing means 10 is joined with the inside-fencing means as a reverse V-shaped structure. Further, as the supporting poles 12, 22 in the outside and inside-fencing means 10, 20, an electroconductive material is adopted, and an electroconductive weed-suppressing sheet is laid on the surface of the ground. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、イノシシ、シカなどの大型獣から、タヌキ、アライグマなどの小型獣まで、多種多様な野生動物による農作物などへの被害を防止するため、畑の周囲など所定の場所に設置する野生動物進入防止柵に関する。 In order to prevent damage to crops and the like by a large variety of wild animals from large beasts such as wild boars and deer to small beasts such as raccoon dogs and raccoons, the present invention It relates to an entry prevention fence.

近年、野生動物による農林業被害は深刻化の一途を辿っている。そこで、その対策として進入防止柵の設置が広く行われている。侵入防止柵としては、ネットなどを用いた物理障壁により対象動物の侵入を遮断するもの(特許文献1)や、電源装置に接続して張設された裸電線による電気衝撃をもって対象動物の侵入を防ぐもの(特許文献2)などが一般的である。また、柵外から内部が窺えないようにトタン板などの目隠し資材を設置することにより、警戒心の強い野生動物に対しての心理的侵入阻害効果をねらった柵も使用されている。 In recent years, the damage to agriculture and forestry by wild animals has been getting worse. Therefore, as a countermeasure, installation of an entrance prevention fence is widely performed. As an intrusion prevention fence, the invasion of the target animal is blocked by a physical barrier using a net or the like (Patent Document 1), or by an electric shock caused by a bare electric wire connected to the power supply device. What is to be prevented (Patent Document 2) is common. In addition, fences are also used that are designed to prevent psychological invasion against wild animals with strong vigilance by installing blindfolds such as tin plates so that the inside of the fence is not visible from the outside.

特開2005-304454号公報JP 2005-304454 A 特開2003-38083号公報Japanese Patent Laid-Open No. 2003-38083

また、対象となる野生動物はサル、シカ、イノシシ、タヌキ、アライグマなど多種にわたり、さらに殆どの場合は複数種が同時に問題となる。そのため、侵入防止柵には多種多様な野生動物の体サイズや運動能力に対応することが求められる。 In addition, the target wild animals are various, such as monkeys, deer, wild boars, raccoon dogs, and raccoons. In most cases, multiple species are simultaneously problematic. Therefore, the intrusion prevention fence is required to cope with the body size and exercise ability of various wild animals.

しかし、先に述べた物理障壁柵では、サルなど登攀能力に優れた動物の侵入を防ぐために圃場の天井部分まで完全に覆ってしまう必要があり、設置およびメンテナンスに多大な労力・コストを要する。また、電気衝撃柵では、多様な体サイズの動物に対応するため多段階の高さに裸電線を張設する必要がある。さらに、小型の動物がすり抜けないようにするためには、地際に近い高さに裸電線を張設する必要があるが、雑草が触れて漏電する事態を防ぐために頻繁な除草作業が必須となるなど、メンテナンスに多大な労力を要する。なお、目隠し資材柵は柵高が大きくなるほど風の影響を受けやすくなり、強風時に倒壊してしまう可能性が非常に高くなる。そのため、シカなど目線の高い動物に対応することは困難である。 However, in the physical barrier fence described above, it is necessary to completely cover the ceiling portion of the field in order to prevent the invasion of animals such as monkeys having excellent climbing ability, which requires a lot of labor and cost for installation and maintenance. In addition, in an electric shock fence, it is necessary to stretch a bare wire at a multi-stage height in order to cope with animals of various body sizes. Furthermore, in order to prevent small animals from slipping through, it is necessary to lay bare wires at a height close to the ground, but frequent weeding work is essential to prevent weeds from touching and leaking electricity. It takes a lot of labor for maintenance. In addition, the blindfold material fence becomes more easily affected by the wind as the fence height increases, and the possibility of collapse during a strong wind becomes very high. Therefore, it is difficult to deal with animals with high eyes such as deer.

このように、多種の動物に対応した侵入防止柵を設置・維持するためには多大な労力及びコストが必要となる。しかし、野生動物による被害が発生するのは中山間地域が主である。これらの地域では地形が険しく、さらに住民の高齢化も著しいため、必要な労力を確保することは非常に困難である。また、平地とくらべて耕作面積が狭く、収益性も悪いことから投入可能なコストも限られている。以上より、従来の技術では効率的に被害を防ぐことは困難なのが現状である。 Thus, a great deal of labor and cost are required to install and maintain an intrusion prevention fence corresponding to various animals. However, the damage caused by wild animals is mainly in hilly and mountainous areas. In these areas, the terrain is steep and the population is aging so much that it is very difficult to secure the necessary labor. In addition, the cultivated area is small compared to the flat land and the profitability is poor, so the cost that can be input is limited. As described above, it is difficult to prevent damage efficiently with the conventional technology.

上記のように従来の技術では、多様な野生動物に対応でき得るような侵入防止柵を設置することは、効果及び労力面において非常に難しいという問題があった。本発明は、省力的な設置およびメンテナンスが可能であり、しかも多獣種に対して効果の高い侵入防止柵を実現することを目的としている。 As described above, the conventional technique has a problem that it is very difficult in terms of effect and labor to install an intrusion prevention fence that can cope with various wild animals. An object of the present invention is to realize an intrusion prevention fence that can be installed and maintained in a labor-saving manner and that is highly effective against multiple beast species.

本発明によれば、支柱に資材を張設した柵手段が所定の間隔をもって外側と内側に設置された二重柵であり、外側の柵手段には野生動物の行動を物理的に阻害する資材を張設し、内側の柵手段には野生動物の視覚を阻害する遮光ネットを張設したことを特徴とする野生動物侵入防止柵を提供する。 According to the present invention, the fence means in which the material is stretched on the support is a double fence installed on the outside and inside at a predetermined interval, and the outside fence means is a material that physically hinders the behavior of wild animals. A wild animal intrusion prevention fence is provided, characterized in that a shading net that obstructs the vision of wild animals is stretched on the inner fence means.

また本発明は、支柱に資材を張設した柵手段が所定の間隔をもって外側と内側に設置された二重柵であり、外側柵手段の支柱を内側方向に、内側柵手段の支柱を外側方向にそれぞれ傾け、上部で互いの支柱を連結した逆V字構造をもつことを特徴とする野生動物侵入防止柵を提供する。 Further, the present invention is a double fence in which the fence means in which materials are stretched on the pillar are installed on the outside and the inside at a predetermined interval, the pillar of the outer fence means is inward and the pillar of the inner fence means is outward. A wild animal intrusion prevention fence characterized by having an inverted V-shaped structure in which each column is inclined and connected to each other at the top is provided.

また本発明は、柵手段の支柱が導電性素材からなることを特徴とする野生動物侵入防止柵を提供する。 The present invention also provides a wild animal intrusion prevention fence characterized in that the support column of the fence means is made of a conductive material.

また本発明は、導電性抑草シートを地表部に設置したことを特徴とする野生動物侵入防止柵を提供する。 Moreover, this invention provides the wild animal invasion prevention fence characterized by installing the conductive weed control sheet | seat in the ground surface part.

本発明によれば、内側の柵手段に張設された視覚阻害資材により、種類を問わず警戒心の強い野生動物は、柵内の安全が確認されないため侵入行動が消極的となる。そのため、外側の柵手段に張設された物理的行動阻害資材の効果が最大限に発揮される。また、視覚阻害資材も、物理的行動阻害資材によっての対象動物の至近距離への接近が回避されるため、最大限の効果が発揮される。つまり、行動阻害と視覚阻害を組み合わせによる相乗効果により、多くの獣種に対してより大きな侵入阻害効果を得ることが出来る。それにより、物理的侵入阻害資材としては、衝撃電圧をかける電源装置に接続された裸電線やネットなど設置作業性・メンテナンス性に優れ、コストの低い簡易資材のみで効果を発揮することができ得る。さらに、耐風性は強いが至近距離では透けて見えてしまう欠点のある遮光ネットを、視覚阻害資材として適用することが可能となり、強風時に柵が倒壊または変形するような事態を回避することができる。 According to the present invention, because of the visual obstruction material stretched on the inner fence means, wild animals with strong vigilance regardless of the type are not confirmed to be safe in the fence, so that the invasion behavior becomes passive. Therefore, the effect of the physical action inhibiting material stretched on the outer fence means is maximized. Moreover, since the visual inhibition material avoids the approach of the target animal to the closest distance by the physical behavior inhibition material, the maximum effect is exhibited. That is, a greater invasion inhibitory effect can be obtained for many animal species by a synergistic effect obtained by combining behavioral inhibition and visual inhibition. As a result, the physical intrusion prevention material can be used only with simple materials that are excellent in installation workability and maintainability, such as bare wires and nets connected to a power supply device to which an impact voltage is applied, and low cost. . Furthermore, it is possible to apply a light-shielding net that has strong wind resistance but can be seen through at close range as a visual hindrance material, and can avoid situations where the fence collapses or deforms during strong winds. .

また、支柱が合掌構造をもつことにより、単純な構造で頑強な柵強度を実現可能となる。このことにより、設置作業性・メンテナンス性を高め、かつシカやイノシシなど大型獣にも対応可能な強度を保持できる。また、二重柵でありながら、それぞれの柵手段に個別の支持構造を設ける必要が無くなるために柵の奥行きが小さくなり、柵の設置による耕作領域の犠牲を最小限に抑えることができる。 In addition, since the struts have a palm structure, it is possible to realize a strong fence strength with a simple structure. As a result, the installation workability and maintainability can be improved, and strength sufficient for large beasts such as deer and wild boar can be maintained. Moreover, although it is a double fence, since it becomes unnecessary to provide an individual support structure for each fence means, the depth of a fence becomes small and the sacrifice of the cultivation area by installation of a fence can be suppressed to the minimum.

さらに、物理侵入阻害資材として電源装置に接続された裸電線を用いる際、柵手段の支柱に鉄パイプなどの導電性資材を用いることにより、対象動物が地面と裸電線に接触した場合だけでなく、支柱の一部と裸電線に接触した場合にも衝撃電圧を感じることとなる。このことにより、対象動物の感電機会を高めることが可能となり、さらに裸電線に接触する際に地面から脚が離れてしまうような小型動物についても感電させることができるため、より多くの種類の動物に対して高い侵入阻害効果を得ることができる。 Furthermore, when using a bare wire connected to a power supply device as a physical intrusion prevention material, not only when the target animal comes into contact with the ground and the bare wire by using a conductive material such as an iron pipe for the support of the fence Also, when a part of the support comes into contact with the bare wire, an impact voltage is felt. As a result, it is possible to increase the chance of electric shock of the target animal, and even small animals whose legs are separated from the ground when coming into contact with the bare electric wire can be electrocuted. High invasion inhibitory effect can be obtained.

また、地表部に導電性抑草シートを設置することにより、衝撃電圧による効果を損なうことなく、繁茂した雑草が裸電線に接触することによる漏電を防ぐことが出来る。このことにより、労力負担の大きい頻繁な草刈り作業が不要となるため、柵のメンテナンス性を著しく高めることができる。 In addition, by installing a conductive weeding sheet on the ground surface, it is possible to prevent leakage due to the contact of the overgrown weeds with the bare wire without impairing the effect of the impact voltage. This eliminates the need for frequent mowing work with a large labor burden, and can significantly improve the maintenance of the fence.

以下、本発明の実施の一形態について図面を参照しながら説明するが、本発明はこれらによって限定されるものではない。 DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, embodiments of the invention will be described with reference to the drawings, but the invention is not limited thereto.

図1は本発明の一実施形態を示す外観斜視図、図2は断面図である。本発明に係る野生動物侵入防止柵は基本的に、物理的な侵入阻害効果を持つ外側柵手段10と視覚遮断効果を持つ内側柵手段20を、横パイプ30によって逆V字構造に連結した構成をもつ。侵入を試みた野生動物は、内側柵手段20によって柵の内部の安全を確認することができないため、侵入行動が消極的となり、外側柵手段10による物理的侵入抑止効果が最大限発揮される。また、外側柵手段10によって対象動物は内側柵手段20の至近距離まで近づくことができないため、内側柵手段20の持つ視覚阻害効果も最大限発揮される。 FIG. 1 is an external perspective view showing an embodiment of the present invention, and FIG. 2 is a sectional view. The wild animal intrusion prevention fence according to the present invention basically has a configuration in which an outer fence means 10 having a physical invasion inhibiting effect and an inner fence means 20 having a visual blocking effect are connected to an inverted V-shaped structure by a horizontal pipe 30. It has. Since wild animals that have attempted intrusion cannot confirm the safety inside the fence by the inner fence means 20, the intrusion behavior becomes negative, and the physical invasion deterrent effect by the outer fence means 10 is maximized. Moreover, since the target animal cannot approach the closest distance of the inner fence means 20 by the outer fence means 10, the visual obstruction effect of the inner fence means 20 is exhibited to the maximum extent.

外側柵手段10には行動を物理的に阻害する資材である行動阻害ネット11が張設されている。行動阻害ネット11はポリエチレンなどを素材としており、イノシシなどの大型獣が侵入を試みた場合においても切れない強度を有している。また、すこしたるませた状態で設置することにより、対象動物の足が行動阻害ネット11に絡み、侵入阻害効果を高める。 The outer fence means 10 is provided with a behavior inhibition net 11 that is a material that physically inhibits behavior. The behavior inhibition net 11 is made of polyethylene or the like, and has a strength that can not be cut even when a large beast such as a wild boar tries to enter. Moreover, by installing in a slightly slackened state, the foot of the target animal is entangled with the behavior inhibition net 11 and the invasion inhibition effect is enhanced.

外側柵手段支柱12には碍子41が2段取り付けられ、衝撃電流パルスを発生する電源装置のプラス極に接続された下段裸電線42および中段裸電線43が張設されている。また、外側柵手段支柱12の上には折り返しポール50が設置され、そこにも同様に電源装置に接続された上段裸電線44が張設されている。なお、電源装置のマイナス極は地面70にアースされている。外側柵手段支柱12および横パイプ30は金属製直管パイプなど導電性の資材を使用しており、外側柵手段支柱12は地中に打ち込まれているため、対象動物が裸電線42または43と地面に同時接触した場合だけではなく、外側柵手段支柱12と同時接触した場合においても対象動物に衝撃電流を与えることができる。従って、鼻面など体の一部分しか通電しないイノシシや、裸電線に接触する際に地面から足が離れてしまうタヌキ等の小型動物においても衝撃電流による侵入阻害効果を高める。また、サルなど登攀能力に優れた動物が侵入を試みる際には、対象動物は外側に張り出した折り返しポール50に不安定な体勢で取り付くことになり、張設された裸電線44と外側柵手段支柱12または横パイプ30に同時接触した際の衝撃電流と併せて、侵入が阻害される。なお、裸電線および碍子の設置段数は何段でもよく、柵設置場所における対象動物の種類や出没頻度によって調整する。 Two steps of insulators 41 are attached to the outer fence means support column 12, and a lower bare wire 42 and a middle bare wire 43 connected to the positive pole of the power supply device that generates an impact current pulse are stretched. Further, a folding pole 50 is installed on the outer fence means support column 12, and an upper-stage bare electric wire 44 connected to the power supply device is similarly stretched there. Note that the negative pole of the power supply device is grounded to the ground 70. The outer fence means column 12 and the horizontal pipe 30 use conductive materials such as a straight metal pipe, and the outer fence means column 12 is driven into the ground. An impact current can be applied to the target animal not only when it contacts the ground simultaneously but also when it contacts the outer fence means column 12 at the same time. Therefore, even in the case of wild animals such as the wild boar that only energizes only a part of the body such as the nose and the raccoon dog that leaves its foot away from the ground when it comes into contact with the bare electric wire, the invasion inhibiting effect by the impact current is enhanced. Further, when an animal having excellent climbing ability such as a monkey tries to invade, the target animal is attached to the folded pole 50 projecting outward with an unstable posture, and the stretched bare electric wire 44 and the outer fence means Intrusion is inhibited together with the impact current when the strut 12 or the horizontal pipe 30 is simultaneously contacted. In addition, the number of installation stages of the bare electric wire and the insulator may be any number, and is adjusted according to the type of the target animal and the frequency of appearance at the fence installation location.

内側柵手段20には遮光ネット21が張設されている。遮光ネット21は暗色の糸を高密度に編み込んだネット資材であり、大部分の光を遮断するため、対象動物の視覚を阻害することができる。また、ある程度の風通しが確保されるため、トタン板など全く光を通さないと共に風も通さない資材を用いた場合と比べて、柵の耐風性を大幅に向上させる。また、遮光ネット21は至近距離では向こうが少し透けて見えるという欠点があるが、外側柵手段10によって対象動物の至近距離への接近を避けることにより、この欠点をカバーしている。 A light shielding net 21 is stretched on the inner fence means 20. The light-shielding net 21 is a net material in which dark colored yarns are knitted with high density and blocks most of the light. In addition, since a certain level of ventilation is ensured, the wind resistance of the fence is greatly improved as compared with the case of using a material that does not transmit light and does not transmit air, such as a tin plate. Further, the light shielding net 21 has a drawback that the other side can be seen through a little at a close distance. However, the outer fence means 10 prevents the target animal from approaching the close distance, thereby covering this drawback.

外側柵手段支柱12と内側柵手段支柱22は逆V字構造で連結されている。この構造をとることにより、外側柵手段10と内側柵手段20はお互いを支え合うこととなり、シカやイノシシなど大型獣にも対応し得る柵強度を実現する。また、単純な構造であるため設置作業性、メンテナンス性も確保される。 The outer fence means column 12 and the inner fence means column 22 are connected with an inverted V-shaped structure. By adopting this structure, the outer fence means 10 and the inner fence means 20 support each other, and the fence strength that can cope with large beasts such as deer and wild boar is realized. In addition, since the structure is simple, installation workability and maintainability are ensured.

地表部には導電性抑草シート60が敷設されている。導電性抑草シート60は光を遮断することにより雑草の生育を抑える働きをするため、裸電線42、43または44に雑草が接触して漏電する事態を省力的に回避できる。また、導電性抑草シート60は導電プラスチックなどの導電性素材を用いる方法や、抑草機能に支障が出ない程度にシートに多くの小孔を開けるなどの方法により、地面との間の導電性を確保している。そのため、対象動物が導電性抑草シート60の上に乗っている状態で裸電線42、43または44に接触した場合においても、衝撃電流によって侵入行動が阻害される。 A conductive weed sheet 60 is laid on the ground surface. Since the conductive weed sheet 60 functions to suppress the growth of weeds by blocking light, a situation in which weeds come into contact with the bare electric wires 42, 43 or 44 can be saved labor-saving. In addition, the conductive weeding sheet 60 is made of a conductive material such as a conductive plastic, or a method of opening a large number of small holes in the sheet so as not to hinder the weeding function. The sex is secured. Therefore, even when the target animal is in contact with the bare electric wires 42, 43, or 44 while being on the conductive grass sheet 60, the intrusion behavior is inhibited by the impact current.

本発明の一実施形態を示す外観斜視図である。It is an external appearance perspective view which shows one Embodiment of this invention. 本発明の一実施形態を示す断面図である。It is sectional drawing which shows one Embodiment of this invention.

符号の説明Explanation of symbols

10 外側柵手段
11 行動阻害ネット
12 外側柵手段支柱
20 内側柵手段
21 遮光ネット
22 内側柵手段支柱
30 横パイプ
41 碍子
42 下段裸電線
43 中段裸電線
44 上段裸電線
50 折り返しポール
60 導電性抑草シート
70 地面

DESCRIPTION OF SYMBOLS 10 Outer fence means 11 Action inhibition net 12 Outer fence means support 20 Inner fence means 21 Shading net 22 Inner fence means support 30 Horizontal pipe 41 Insulator 42 Lower bare wire 43 Middle bare wire 44 Upper bare wire 50 Folding pole 60 Conductive restraint Seat 70 ground

Claims (4)

支柱に資材を張設した柵手段が所定の間隔をもって外側と内側に設置された二重柵であり、外側の柵手段には野生動物の行動を物理的に阻害する資材を張設し、内側の柵手段には野生動物の視覚を阻害する遮光ネットを張設したことを特徴とする野生動物侵入防止柵。 The fence means in which the material is stretched on the support is a double fence installed on the outside and inside with a predetermined interval, and the outside fence means is laid with a material that physically hinders the behavior of wild animals. A wild animal intrusion prevention fence characterized in that the fence means has a light-shielding net that obstructs the vision of wild animals. 支柱に資材を張設した柵手段が所定の間隔をもって外側と内側に設置された二重柵であり、外側柵手段の支柱を内側方向に、内側柵手段の支柱を外側方向にそれぞれ傾け、上部で互いの支柱を連結した逆V字構造をもつことを特徴とする野生動物侵入防止柵 The fence means in which materials are stretched on the pillars are double fences installed on the outside and inside at a predetermined interval, the pillars of the outer fence means are inclined inward, the pillars of the inner fence means are inclined outward, and the upper part A wild animal intrusion prevention fence characterized by having an inverted V-shaped structure in which the struts are connected with each other 請求項1または2に記載されている野生動物侵入防止柵において、外側柵手段もしくは内側柵手段の支柱が導電性素材からなることを特徴とする野生動物侵入防止柵。 The wild animal intrusion prevention fence according to claim 1 or 2, wherein the outer fence means or the support of the inner fence means is made of a conductive material. 請求項1または2に記載されている野生動物侵入防止柵において、導電性抑草シートを地表部に設置したことを特徴とする野生動物侵入防止柵。
The wild animal intrusion prevention fence according to claim 1 or 2, wherein a conductive suppression sheet is installed on the surface.
JP2006172475A 2006-06-22 2006-06-22 Fence for preventing variety of animals from intruding Pending JP2008000066A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009284879A (en) * 2008-06-02 2009-12-10 Utsunomiya Univ Electric fence
JP2010029101A (en) * 2008-07-29 2010-02-12 Showa Engineering Kk Fence for preventing invasion of birds or animals
JP2011115060A (en) * 2009-12-01 2011-06-16 Kakegawashi Nogyo Kyodo Kumiai Protective fence from beast
JP2012060948A (en) * 2010-09-17 2012-03-29 Kiyohiro Yamamori Beast damage-preventing system
JP2012244907A (en) * 2011-05-25 2012-12-13 Kitahara Denboku Kk Invasion prevention fence
JP2017042081A (en) * 2015-08-26 2017-03-02 近江屋ロープ株式会社 Animal entry prevention fence
CN110199786A (en) * 2019-05-09 2019-09-06 广西壮族自治区农业科学院 A kind of rice spiral shell symbiotic cultivation method based on green manure
CN117561989A (en) * 2024-01-16 2024-02-20 山东睿高农牧机械有限公司 Safety fence device for livestock breeding

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009284879A (en) * 2008-06-02 2009-12-10 Utsunomiya Univ Electric fence
JP2010029101A (en) * 2008-07-29 2010-02-12 Showa Engineering Kk Fence for preventing invasion of birds or animals
JP2011115060A (en) * 2009-12-01 2011-06-16 Kakegawashi Nogyo Kyodo Kumiai Protective fence from beast
JP2012060948A (en) * 2010-09-17 2012-03-29 Kiyohiro Yamamori Beast damage-preventing system
JP2012244907A (en) * 2011-05-25 2012-12-13 Kitahara Denboku Kk Invasion prevention fence
JP2017042081A (en) * 2015-08-26 2017-03-02 近江屋ロープ株式会社 Animal entry prevention fence
CN110199786A (en) * 2019-05-09 2019-09-06 广西壮族自治区农业科学院 A kind of rice spiral shell symbiotic cultivation method based on green manure
CN117561989A (en) * 2024-01-16 2024-02-20 山东睿高农牧机械有限公司 Safety fence device for livestock breeding

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