STRESS is a big factor in determining the overall
health of our birds. Stress comes in many forms and seems to affect
the best of our show birds the most. There's something inherent
about the genetic makeup it takes to produce the finest colors and
the best type and a bird's reaction to stress. Everyone has heard
of the relationship between the 'mutt' dog and good health. The
same seems true with fancy fowl. The finer the breed, the more susceptible
they are to stress and disease.
They don't
call them 'chicken' for nothing. By nature, most chickens
(and waterfowl), are cowards. They're afraid of their own
shadow. Poultry are prey and their genetic code predisposes
them to the flight instinct, even when they're hand-reared
and tame. Fear creates stress and there's a sound medical
reason why stress allows disease to take hold in an otherwise
healthy bird. Without giving you a poultry veterinary science
lesson, let's just say that stress causes changes to occur
in the gut that lowers the pH. When the pH is low, 'Gram negative'
bacteria become comfortable in the environment and begin to
take hold and replicate. The rest you can imagine...
But let's
talk about the many things that stress out our birds. Some
of these may be a surprise to you. My first example is severe
cold or heat - or a dramatic change from one to the other.
Only healthy birds are capable of making it through the night
when it's sub-zero. And only healthy birds are capable of
enduring severe heat if there's no water, breeze, or shade
for them to find relief in. Poultry are more susceptible to
this than people realize. Have you ever seen the flurry of
activity that takes place right before nightfall amongst the
wild birds? They're filling up with food and water to make
it through the night. You can almost tell when a storm is
coming because they'll sense the barometric change and feed
heavily to weather the storm. Your own chickens and waterfowl
will have a last meal and drink at dusk - before they can't
see anymore to roost and settle in for the night. If you can't
feed and water twice in a particular day and you have a choice,
choose to feed and water late rather than early for the above
reasons. The late feed is most important during cold weather.
Another
concern of cold weather is frostbite. Single comb varieties
with long wattles suffer the most. Some believe that massaging
Vaseline into the comb will help prevent frostbite. I've tested
this and found no evidence that the roosters who received
massage and/or Vaseline fared any better than those that didn't.
Keeping drafts out of the coop to keep wind chill effect down
is probably more effective. A sign of frostbite is having
the comb or wattles turn white. Eventually they turn black
and scab over. In severe cases, the bird will lose the part
that turns black.
Breeding
and laying are stressful for many reasons. It's especially
stressful if it's the first season of maturity for either
sex. (Most losses due to diseases such as Mareks occur right
before or right after sexual maturity.) I've heard old wives
tales about young roosters 'going crazy' if they're not allowed
to breed. I don't think there's medical poultry science to
support that - but you get the picture. 'First egg' for a
female can be difficult - both in the hormone changes that
occur and in the 'effort' it takes.
The nutritional
requirements of a laying hen or duck must be met. Oyster shell
is a good source of calcium and should be available to your
females on a free-feed basis. If the calcium requirement is
not met to help form the eggshells, the female will actually
steal it from her own bones. I'd like to caution you about
oyster shell though. The free-feed of calcium before sexual
maturity can cause kidney damage. Also, some people mistakenly
use it as grit, as well as a source of calcium. Since finely
ground oyster shell literally dissolves in the crop, it never
reaches the gizzard in its hard form. The gizzard is where
the food is actually ground up so this is where the grit is
needed. Large particle oyster shell has a better chance of
reaching the gizzard. I prefer providing sand or poultry grit
(sold at most feed stores) at all times if your birds are
confined. If they free-range, they'll find grit on their own.
Nature provides this instinct. One last thought on laying
females - make sure they have plenty of water. Their water
intake increases when they're producing an egg. A little flavored
probiotic liquid in their water will encourage them to drink
more.
Although
it seems benign, a change to your birds' environment or housing
can also be stressful. If I'm going to change around cages
or separate birds that were accustomed to being together,
I usually won't do it when they're stressed for some other
reason. I once had a hen that was one of a pair that were
alike in all ways. They had never been apart. I wanted to
show them so I split them up (since they were lovingly pulling
each other's beards out). The one bird survived just fine
- I still show her today. But it sent the other into a tailspin.
She never quieted down. She paced the cage with no rest. Then
she was further stressed with PT testing. She didn't survive
long after that. She was a nice little bird - I learned a
hard but subtle lesson. Stress is a little like having allergies
- one or two stresses may be livable, but if you pile on a
bunch of changes at the same time, the stress they cause can
have a cumulative effect. So I try not to throw too much at
them at once.
Grooming
practices of the Fancy such as bathing, pulling feathers,
clipping and shaping beaks and nails, and treating for feather
mite, are all stressful and unnatural to our birds. If you
have a grooming routine you like to follow, try performing
them over a longer period of time instead of doing everything
to one bird in one day. And whatever you do, please don't
hold those birds upside down by their feet. It turns out there's
a link between respiratory disease vulnerability and being
held upside down. I've seen people do this at the shows and
swaps. Aren't these birds stressed enough? I can't cover everything
here but the article wouldn't be complete unless I mentioned
our birds' number one stresser - showing. Many of the reasons
showing is stressful are listed above. Things like changes
in their environment, grooming, temperature changes, etc.
Now imagine the number of illnesses your birds are exposed
to at a show. Add to that the travel, the chaos, the noise,
the bird next door to yours in the showroom that wants 'a
piece' of your bird - and your bird knows it.
I hope
I haven't scared you off with all of these examples of stress.
Sometimes stress can be a positive thing. Why do think little
'Rocky' struts his stuff at the show for the judge, but looks
like a roost potato at home? Just remember the stresses our
birds endure everyday for our fun and recreation, and eliminate
the stress that you can. You'll have healthier birds as a
result. |