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Factsheet 6
of 6 in the
Pasture and Range Assessment Series
DEVELOPING A GRAZING MANAGEMENT PLAN AND MONITORING
Grazing Management Plan
A carefully prepared
and implemented Grazing Management Plan will help alleviate
environmental concerns with respect to livestock grazing and help
maintain pasture and range health.
Grazing management
plans are important components of any operation. A well-designed
plan can improve or maintain pasture and range health as well as
forage production while optimizing plant and animal performance.
Most importantly, plans should ensure profitability by being
practical, flexible, and simple to operate.
Grazing management
plans should have the following components:
-
A
definition of goals including livestock production and pasture
and range sustainability. Examples of pasture and range
sustainability goals include maintaining pasture, range, and
riparian health and/or reducing weed and poisonous plant problems.
-
A map of
grazing areas including tame and native pastures and all
developments such as fences, gates, water sources, etc.
-
The type and
number of livestock being grazed in the pastures.
-
Approximate
period of use for each pasture.
-
Where will
the animals be
moved? That is, the sequence of use of pastures.
Livestock Performance
Grazing management
plans should strive to achieve livestock performance objectives.
Grazing affects livestock performance primarily by influencing
animal nutrition. Nutrition is dependant on forage quantity and
quality. Forage quantity is the amount of forage that is available
to the grazing animal at the time of turnout and thus determines
how long you are able to maintain your animals in a particular
pasture (stocking rate). For example, in most cases the amount of
forage available in early spring is less than the amount available
in the summer. It is extremely important to set stocking rates
according to forage quantity and availability. Forage quality,
which varies depending on plant species, growth stage, soil,
climate, and grazing management, also influences stocking rates.
For example, during the spring and early summer forage quality is
generally at its peak. This allows the grazing animal, when
compared to other seasons, to achieve optimum performance with
less forage and little or no supplementation.
Optimizing Plant
Performance
Grazing management
plans should also be based on the physiological and reproductive
requirements of the plants. Most forages are adapted to grazing,
but are stressed by grazing. The ability of an individual plant to
survive this stress is dependant on numerous factors including:
-
Whether or not the plant is native or tame.
-
The number of times it is grazed (frequency).
-
The amount of plant material that remains after
grazing (intensity; stubble height).
-
The amount of rest the plant is given following
grazing and the amount of moisture and nutrients available.
A good management plan
acknowledges that native plants are typically less tolerant to
grazing than tame species. The plan should also recognize the need
to control the frequency and intensity of grazing and most
importantly, recognize the need for rest following grazing. This
rest period is needed in order to maintain forage productivity as
well as pasture and range health.
Economics
Grazing management
plans must also be economical. Every improvement, including
fencing, fertilization, water developments, etc., must be
carefully planned to produce positive economic returns. These
returns can come in many forms, such as decreased labour,
increased forage production, increased forage availability, and
corresponding increases in animal productivity.
Flexibility
Finally, as with all
business and resource management plans, it is extremely important
to ensure that a plan is practical, reasonably simple, and
flexible. Flexibility is important since it allows you to deal
with market fluctuations as well as any fluctuations in forage
production (i.e., drought, fire, etc.).
Rules of
Thumb
Grazing
management plans
should be site-specific and correspond to ranch and farm
conditions as well as plan objectives.
Grazing
schedules should
be based on the physical and biological characteristics of a site.
That is, when determining the timing, frequency, duration, and
intensity of livestock grazing the following should be considered:
-
Adequate plant cover and leaf
material should be maintained in order to promote photosynthesis,
water infiltration, conserve soil moisture, and maintain soil
stability
-
Plant
structure should also be encouraged in order to maintain the
nutrient and water cycles and maximize pasture production by using
sunlight, water, and nutrients from different zones in the canopy
and soil. Plant structure also provides habitat for numerous
wildlife species including browsing opportunities for ungulates
and feeding and nesting sites for birds and small mammals.
-
Spring grazing
should be deferred until after new leaf growth has begun or, if
taking advantage of the previous year’s forage production, before
spring growth begins.
-
If possible,
limit grazing periods. The shorter the grazing period, the more
likely that leaf regrowth will occur and carbohydrate reserves
will be replenished before the next grazing period.
-
Grazing
schedules should provide periodic rest from grazing during
critical growth periods. Rest
times should match the ability of the plant species to recover
from grazing. This promotes plant vigour, reproduction, and
productivity. Also keep in mind that native plants need a longer
recovery time than tame species.
-
Grazing
schedules should prevent the increase and spread of invasive
plants. This includes promoting conditions that facilitate the
establishment and maintenance of desirable
plants.
Monitoring
What is Monitoring?
Monitoring is the orderly collection, analysis
and interpretation or resource data to evaluate progress toward
meeting management objectives such as increased livestock
production. This process must be conducted over time in order to
determine whether or not management objectives are being met.
Why Monitor?
Monitoring, while
labour intensive, is an important component of any grazing
management plan. It provides measurables that allow one to
determine whether the objectives of the plan are being met.
Without it, one is unable to determine what effect grazing has had
on the health of tame pastures or native range. This includes
determining the trend, or changes, occurring in the condition of
your grazinglands.
When do I Monitor?
All monitoring
programs should be:
-
Repeated
at regular time intervals. Ideal monitoring times in
British Columbia vary from May to September depending on location.
-
Conducted
before grazing with follow-up monitoring being conducted
under similar conditions
and if possible at the
same time each year.
By repeating the assessments in Factsheets 3
and 4 of this series, you can monitor the trend of your grazing lands
and highlight the successes or failures of your grazing management
practices. Increases in your assessment score indicate a positive
trend whereas reductions indicate a negative trend. Note that
changes in your assessment score may be due to not only your
management practices but also changes in climate, insect and
wildlife populations.
In addition to this assessment, you may want to
consider adding other methods of monitoring to your program. If
you wish to do this, consider adding both long-term and short-term
components to the monitoring system.
Long-term monitoring
generally takes place every one to five years whereas short-term
monitoring may be repeated at any time interval. Overall, it is
important that any monitoring program be both systematic and
rigorous.
For more information on Monitoring, please
refer to Grazing Management Factsheet – No. 7, Monitoring Options.
The establishment of photo-points is recommended for all
monitoring programs. The section below provides information on how
to establish photo-points.
For further
information contact:
Darren Bruhjell
Phone: 250 371-6058
Email:
Darren.Bruhjell@gov.bc.ca
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