A topic that has surfaced a good bit lately is that of utilizing low-quality,
residual forage that is left over from the summer. This is especially
relevant in the southern portion of the state where bahia and bermudagrasses
predominate. First of all, the type of animal that is best suited
to use this forage is a pregnant non-lactating cow (i.e., a spring-calving
cow that has already weaned this year's calf). The ideal situation
is to supplement these cows with a small amount of protein in order to
stimulate both digestion and intake of this low-quality forage. A
typical "hot mix" will work well for this situation. A mixture of
cottonseed meal and salt such that daily intake is only about 2 to 3 pounds
per day. For a salt-limited feeding program to be successful it is
important that the cows have been on a good mineral program prior to this
or the salt will have the opposite effect and actually stimulate intake.
Start out with a mix of 80% cottonseed meal and 20% salt and put about
5 pounds of this mix in a bunk for each cow that is in the group.
Keep doing this on a daily basis and adjusting the amount of salt until
you get a mix that makes them leave feed in the bunk. Once you have
the correct amount of salt for limiting to 2 to 3 pounds of consumption
per day then you can fill a self-feeder. If cows tend to not graze
in certain areas move the feeder to that area and soon they will clean-up
the entire pasture (excluding dog fennel, smutgrass and several other undesirables!!)
The goal can also be accomplished by using some of the commercially available
products that contain high concentrations of natural protein and designed
for low daily consumption.
This technique is not very well suited to a fall-calving
cow that has already calved because her nutrient demands are too great
for the amount she will be receiving. This technique is not suitable
for fescue-based pastures during this time of the year because fescue is
a cool-season grass and is just starting it's growth period. Young,
vegetative grass will be high-quality unlike the warm-season grasses which
have declined and will only get lower in quality.
Some researchers and producers have actually taken
this concept a step further and are placing cows on stockpiled bermuda
and bahiagrass during October and November. Instead of taking the
last hay cutting about now they simply leave that hay crop standing in
the field and let the cows harvest it by employing a strip-grazing technique.
These programs have been extremely successful in Oklahoma but have not
been properly evaluated in Alabama or other southeastern states.