Friday, March 18, 2016
Thursday, March 17, 2016
Pasture Bloat
Wheat and small grain pastures have
been slow to come on this fall and winter because we were dry and we have lost
some nutrients in the soil due to record rainfall in 2015. Finally, due to recent rains and favorable
growing conditions producers need to be aware of the potential for bloat in
cattle. All of these conditions are very
good but at the same time be prepared for your pastures to become too high of
quality and cause some potential for bloat in your cattle. Over the next weeks,
bloat in cattle should definitely be on our minds from a management stand
point. The following information can be very useful for Wise County beef
producers about bloat from Ted McCollum
III, PhD, PAS-ACAN, Extension Beef Cattle Specialist, Texas A&M AgriLife Extension Service, Amarillo, Texas.
Foamy or frothy bloat reduces
performance and can potentially lead to death of cattle. Frothy bloat occurs when the gases normally
produced during ruminal fermentation cannot be expelled from the rumen by
eructation (belching). At the onset of
bloat, cattle may cease eating and the bloat may dissipate. As the severity of bloat increases, the rumen
becomes more distended and the level of discomfort increases. If no intervention occurs, death can result
from respiratory distress and heart failure.
Anytime cattle are consuming highly digestible
feedstuffs and forages the potential for frothy bloat exists. Carbohydrates and soluble proteins from these
feeds are rapidly degraded and fermented in the rumen. Slime-producing bacteria
that degrade soluble proteins and small feed particles produce a slime that can
develop into a stable, proteinaceous foam.
Mineral composition of the forage may also affect the stability (surface
tension) of the foam. Bloat occurs when
the gases produced by the fermentation become trapped in this foam and cannot
be expelled.
Frothy bloat on pasture is usually
associated with actively growing, highly digestible forages that contain low
fiber and relatively high crude protein (and soluble protein) levels. Among these forages are small grain forages
and legumes such as alfalfa and red and white clover.
The occurrence of bloat is affected by
a number of factors – soil fertility, climatic conditions, stage of plant
development, grazing management, and animal predisposition – among others. Because of the multiple factors, reducing or
preventing bloat may require multiple management approaches on a single
operation and, the success, or lack thereof, of a preventative measure can vary
from year-to-year and operation-to-operation.
Soil fertility practices may influence
the incidence of bloat on small grains pastures. Work in the Rolling Plains suggests that
high, single applications of N on wheat increases the potential for bloat. This and management history on fields may
partially explain why bloat outbreaks may occur on some fields but not on
others in the locale.
Stage of plant development affects the
concentration of carbohydrates and soluble proteins that can provoke
bloat. This again may partially explain
why bloat outbreaks may occur on some fields but not on others in the
locale. The forage may be at different
stages of development as influenced by planting dates, moisture conditions and
other factors affecting growth.
Small grains bloat is typically a
problem in the late winter/early spring when the forage is coming out of winter
dormancy. Occasionally fall/winter bloat
can be a problem. With legumes, bloat
risk changes with stage of plant development.
For instance, bloat risk on alfalfa decreases as the plant matures and
blooms. Knowing when bloat risk increases
and subsides during the grazing season aids the timely application of
prevention practices.
For pastures containing
bloat-provocative legumes, it is recommended that the legumes comprise no more
than 50% of the forage mix. An
alternative is to plant adapted legumes that are less bloat provocative.
Grazing programs should focus on
turn-out practices and forage availability.
Prior to turning cattle onto pasture ensure that the cattle are
full. This will tend to limit immediate
grazing activity and forage consumption.
Likewise, if cattle are managed under a rotational grazing scheme,
judiciously manage forage availability.
Moving cattle from pastures with a limited forage supply (and hence
limited consumption) to fresh paddocks with an abundant supply (and hence
increased consumption) may predispose the cattle to bloat. Adjust the rotation so cattle are not rotated
from a limited forage supply to an abundant forage supply.
During bloat risk periods, providing
access to hay or other forages may reduce the occurrence of bloat. Assuming the cattle will consume the
hay/forage, consumption of the bloat-provocative forage may be reduced and
hence reduce the risk of bloat.
Poloxalene (Bloatguard) is a mild
detergent that reduces the foam in the rumen and hence can reduce the incidence
of bloat. The product is available in
different forms – blocks, mineral supplements, liquids, top dresses. To be effective, the cattle must consume a
sufficient amount of poloxalene daily.
Poloxalene in a self-fed form will probably never totally prevent bloat
because of the variation in daily consumption by individual animals. Hand feeding poloxalene in a larger volume of
feed will increase the consistency of daily intake.
Surfactants, anti-foaming agents, have
been used successfully in some grazing situations. In order for surfactants to
be effective, they must be consumed on a daily basis. Water treatments are
effective as long as the treated water is the only source of water and the
surfactant concentrations are maintained.
Ionophore feed additives may also aid
in bloat prevention. Microbial gas
production in the rumen is reduced by ionophore consumption. Studies on
irrigated wheat in New Mexico demonstrated that Rumensin dramatically reduced
the incidence and severity of bloat.
Ionophores can be delivered in blocks, mineral supplements, pelleted
supplements and mixed feeds. As noted
with poloxalene, these feed additives will not totally eliminate bloat. In addition to aiding with bloat prevention,
the ionophores will improve daily weight gain.
Anecdotal data suggests that salt
(sodium) consumption may reduce incidence of bloat. A survey of Oklahoma producers indicated that
bloat incidence was lower when salt was available to cattle. Remember
that complete mineral supplements for cattle contain salt. Oklahoma data has also shown that cattle
grazing wheat and consuming a complete mineral balanced for wheat pasture gain
more rapidly than cattle consuming salt alone and inclusion of Rumensin further
improved gains. So offering a mineral
supplement provides a means of delivering salt as well as an ionophore, both of
which may help reduce bloat prevalence, as well as improving performance.
Some cattle are predisposed to
bloat. This may reflect physiological
differences, differences in ruminal microbial populations, differences in
forage selection and forage intake, or other factors. If animals are chronic bloaters, the best
approach is to remove them from the group.
The only 100% effective means of
stopping bloat is to remove the cattle from the bloat provocative pasture.
Several factors, acting in combination
or individually, can lead to a bloat problem.
No one single management practice will be completely effective all of
the time. Knowledge of when bloat occurs
and why it occurs can help in developing and implementing a management plan to
reduce the occurrence.
Wednesday, March 16, 2016
WALKING...THE BEST EXERCISE FOR DIABETES
Exercise
is something most of us love to hate. But there is good news...walking is one
of the safest and easiest ways to get the required amount of physical activity
we need each week. Let's review the benefits of walking when someone has type 2
diabetes.
Research
shows sustained, regular exercise, like walking, reduces the risk of several
life-threatening diseases, including heart disease, stroke, and probably
certain cancers. For people with diabetes, it improves the way insulin works
and gives you improved blood glucose readings!
It is important to take precautions by
checking your blood glucose (sugar) before and after workouts. Foot care is
important as well. Check your feet before and after workouts for blisters, breaks
in the skin, redness or swelling.
To
achieve these health benefits, you need to accumulate at least 30 minutes of
moderate physical activity most, if not all days of the week. This goal can be
accomplished with a single brisk 30-minute walk, several shorter walks that add
up to 30 minutes, or with a short walk combined with other physical pursuits,
such as yard work, or energetic housework.
The
faster you swing your arms as you walk, the faster you'll be able to walk,
since your arms and legs move in sync. To swing your arms faster, bend your
elbows at a 90-degree angle rather than letting your arms hang down at your
sides, and don't let your hands swing higher than chest level. When walking,
push off with the balls of your feet, and take quicker strides, not longer
ones, since extending your normal stride can cause low-back pain. Your body
will automatically choose the right stride length that works best for you. Remember, keep your head up, shoulders back,
and chest out to maintain a comfortable upright posture.
If you are concerned about pushing yourself
too hard during the work-out, take notice of what your body is telling you.
You're probably over-exercising if walking feels like drudgery; you have signs
of low blood sugar, muscle cramps, leg pain, breathlessness or extreme
fatigue. It's best to walk with someone
else, just in case you need extra encouragement or a reminder to check your
blood sugar while exercising.
If
you would like to get started soon with a walking program, call the Wise County
Extension office at 940/627-3341 and ask about Walk Across Texas. This is a free, fun, group physical activity
program. All you need is a group of 8 friends, family members, or co-workers
who want to keep track of the amount they walk for 8 weeks. You can encourage
one another to keep going and see if your team can reach your destination first
before other groups participating too. Walk
Across Texas starts March 21.
Remember,
before starting any exercise program,
even walking – check with your doctor!
Monday, March 14, 2016
Wise County's Walk Across Texas
Wednesday, March 9, 2016
Tuesday, March 8, 2016
Killing Ourselves with Convenience
This
week we begin to look at reasons we should all participate in the upcoming Walk
Across Texas program. Kickoff is set for Monday, March 21.
Approximately
55 percent of the U.S. population is overweight or obese. Maintaining a normal
weight requires a balance between calories taken in and used for energy.
Previous generations ate a lot more calories, but they worked a lot harder.
They walked many places whereas today we drive even short distances. Instead of working in the fields, we sit at
our computers. On our way home, we stop
for fast food and spend an average of three or more hours watching television
in the evening.
Too
many calories and too much sitting are strongly linked to weight gain. A recent
study found that our children are gaining weight too for the same reasons. Overweight parents tend to have overweight
children. Overweight people are more
likely to have high blood pressure, diabetes, some types of cancer, and joint
problems related to arthritis. Can this trend be reversed?
The
answer is yes, but if you have tried to lose weight and increase your activity
level, you know changing is not easy. Eating high caloric foods and sitting in
front of the television is much easier.
Changing
eating and activity patterns requires effort and planning. Spend time learning
about whether or not you need to lose weight and if you can safely begin an
activity program. Learn about your
options. Just because you have tried
before and not been successful does not mean you cannot be successful this
time.
Losing
weight and increasing activity does not mean you have to suffer or spend a lot
of money for special foods, pills, books, or equipment. People who went from an average weight of 210
to an average of 145 pounds and maintained their loss for an average of 5½
years attributed their success to controlling calorie intake, limiting portion
sizes, eating five meals each day, never skipping meals, eating out no more
than three times each week with only one of those times at a fast food
restaurant, and using up about 2,700 calories a week in physical activity
beyond that required for daily activities like gardening or housecleaning. A majority of these 629 successful losers in
the National Weight Control Registry said they had been overweight since
childhood or had a family history of obesity. Getting started is hard. Programs claiming quick weight loss with
little or no effort tend to help remove little more than your dollars.
Subscribe to:
Posts (Atom)