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Fencing options for production systems
part of Forages test 3
29
Agriculture
Undergraduate 4
04/22/2017

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Term
some things to be considered when installing a fence
Definition
-First, what is the fence to be used for? boundary fence or a cross-fence to divide a pasture?
-Is the fence for sheep, cattle, horses or something else?
-What type of fence is best suited and where should the fence be constructed for maximum effectiveness?
Term
Purpose of the Fence
Definition
-Livestock protection and confinement
-Proper fencing is a powerful management tool in efficient grazing systems.
-Different fencing needs for various types (species, age, breed, production system).
Term
some things to consider for fencing with horses
Definition
-Visibility is a necessary when fencing for horses.
-Barbed wire should be avoided -- many opportunities for horses to tear their hide on the barbs.
-High-tensile wire fences poses a threat to horses, ---become entangled in the strands.
Term
some things to consider for fencing with cattle
Definition
Most types of fence can be used with cattle,
Need to assess factors such as expense, ease of construction and expected life of the fence when considering fencing strategy.
Term
______ is a necessary when fencing for horses.
Definition
Visibility
Term
a type of fencing that should be avoided with horses and why
Definition
Barbed wire should be avoided -- many opportunities for horses to tear their hide on the barbs.
Term
a type of fence that's a threat to horses and why that is
Definition
High-tensile wire fences poses a threat to horses, ---become entangled in the strands.
Term
the type of fencing that can be used with cattle
Definition
Most types of fence can be used with cattle
Term
some factors that must be assessed when fencing for cattle
Definition
-expense
-ease of construction
-expected life of the fence
Term
Farm resources to consider when planning fencing layout
Definition
the permanent, semi permanent, and variable farm resources
Term
permanent farm resources
Definition
-soil type
-slope
-aspect
-water streams
Term
semi-permanent farm resources
Definition
-water supply
-trees
-shade
-permanent fences
Term
variable farm resources
Definition
-forage type
-temporary fences
-alley ways
-acreage
Term
Before planning the layout of a fencing system, evaluate...
Definition
the resources available
Term
Use the information to design a fencing layout that maximizes ______ and provides ______.
Definition
forage efficiency

proper rest periods for plant growth and recovery
Term
types of fencing systems
Definition
-Fixed
-Portable (flexible)
Term
advantages of fixed fencing systems
Definition
-minimum daily labor
-low maintenance
-low cost per acre on large installations
Term
disadvantages of fixed fencing systems
Definition
-high cost per acre on small installations
-limited management flexibility
Term
advantages of flexible fencing systems
Definition
-high management flexibility
-low cost per acre on small installations
Term
disadvantages of flexible fencing systems
Definition
-more labor
-high maintenance
Term
Barbed wire fences
Definition
they contain strands of horizontal wires twisted together with barbs spaced every 4 to 5 inches.
Term
Woven wire fences
Definition
they are smooth horizontal and vertical wires made of mild steel.
Term
information about High Tensile Strength Wire (non-electric)
Definition
-Desirable because they can withstand livestock contact and low temperatures without losing elasticity.
-The wire used in this type of fencing is usually 11- to 14-gauge wire with a tensile strength of 170,000 to 200,000 pounds per square inch and a breaking strength of 1,800 pounds.
Term
information about High Tensile Strength Wire (electric)
Definition
-Combine the strength of the high-tensile fence with an electrical component.
-The electrical component provides an electrical shock to any animal that touches the wire.
-One disadvantage of electric fences is that animals must be trained to stay away from the electric wire.
Term
with High tensile electric fencing, The wire number and spacing depend on...
Definition
the type of livestock being constrained
Term
why high tensile electric fences are spring loaded
Definition
to permit irrigators to “walk” over the fences
Term
this can be done with electric fences to accommodate poor sighted animals
Definition
Highly visible electric tapes available for poor-sighted animals
Term
Interior fences (or cross fences) are used to...
Definition
subdivide fields into smaller areas (paddocks) for grazing.
Term
some criteria for a lawful fence
Definition
1.Three rails of good substantial material fastened in or to good substantial posts not more than ten feet apart.

2. Three boards not less than six inches wide and three-quarters of an inch thick, fastened in or to good substantial posts not more than eight feet apart.

3. Three wires, barbed with not less than thirty-six iron barbs of two points each, or twenty-six iron barbs of four points each, on each rod of wire, or of four wires, two thus barbed and two smooth, the wires to be firmly fastened to posts not more than two rods apart with not less than two stays between posts, or with posts more than one rod apart without such stays, the top wire to be not more than fifty-four nor less than forty-eight inches in height.

4. Wire either wholly or in part, substantially built and kept in good repair, the lowest or bottom rail, wire, or board not more than twenty nor less than sixteen inches from the ground, the top rail, wire, or board to be between forty-eight and fifty-four inches in height and the middle rail, wire, or board not less than twelve nor more than eighteen inches above the bottom rail, wire, or board.

5. A fence consisting of four parallel, coated steel, smooth high-tensile wire which meets requirements adopted by the American society of testing and materials, including but not limited to requirements relating to the grade, tensile strength, elongation, dimensions, and tolerances of the wire. The wire must be firmly fastened to plastic, metal, or wooden posts securely planted in the earth. The posts shall not be more than two rods apart. The top wire shall be at least forty inches in height.

6. Any other kind of fence which the fence viewers consider to be equivalent to a lawful fence or which meets the standards established by the department of agriculture and land stewardship by rule as equivalent to a lawful fence.
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