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Категория: БиологияБиология

Medical value of cockroaches

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MEDICAL VALUE OF COCKROACHES
MEDICAL ACADEMY NAMED BY SI GEORGIEVISKIY
CFU NAMED BY V.I.VERANDSKIY
DEPARTMENT OF MEDICAL BIOLOGY
Riya lomas
Aditya bhaskar
1st course
Group 192 b
Submitted to mam Svetlana smirnova bright

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Introduction
There are almost 4000 species
of cockroaches. About so
species have become domestic
pests, and the most important
medically are Blatella
germanica (the German
cockroach), Blatta orientalis
(the oriental cockroach),
Periplaneta americana (the
American cockroach

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Economic importance:
Ruins food stuff. Most cockroaches live outside and help to decay organic
matter. Believed to spread disease, but contrary to popular opinion, they rarely
if ever spread human disease. Natural control: Gecko lizards, scorpions, and
beneficial nematodes.
Although most us think of cockroaches as vermin, they do have a useful
ecological role. Cockroaches are professional recyclers, chowing down just
about anything, including dead plants and animals, and animal waste.Their
digestive systems are up to the task because they contain bacteria and protozoa
that help convert the world's waste into easily-absorbed nutrients. In the wild,
the waste of roaches nourishes growing plants, continuing the cycle.

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Cockroach milk is a milk-like, protein rich,
crystalline substance produced by
cockroaches of the Diploptera punctata
species. ... Dated lab analyses from 1997
show that cockroach milk is incredibly
nutritious, providing plenty of carbs, fat,
vitamins, minerals, protein, and all nine
essential amino acids.

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In research and education
Because of their ease of rearing and resilience, cockroaches have been
used as insect models in the laboratory, particularly in the fields
of neurobiology, reproductive physiology and social behavior.[31] The
cockroach is a convenient insect to study as it is large and simple to raise
in a laboratory environment. This makes it suitable both for research and
for school and undergraduate biology studies. It can be used in
experiments on topics such as learning, sexual pheromones, spatial
orientation, aggression, activity rhythms and the biological clock, and
behavioral ecology.[58] Research conducted in 2014 suggests that humans
fear cockroaches the most, even more than mosquitoes, due to an
evolutionary aversion.[59]

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As pests
The Blattodea include some thirty species of cockroaches associated with
humans; these species are atypical of the thousands of species in the
order.[60] They feed on human and pet food and can leave an offensive
odor.[61] They can passively transport pathogenic microbes on their body
surfaces, particularly in environments such as hospitals.[62][63] Cockroaches are
linked with allergic reactions in humans.[64][65] One of the proteins that trigger
allergic reactions is tropomyosin.[66] These allergens are also linked
with asthma.[67] About 60% of asthma patients in Chicago are also sensitive to
cockroach allergens. Studies similar to this have been done globally and all the
results are similar. Cockroaches can live for from a few days to up to a month
without food, so just because no cockroaches are visible in a home does not
mean they are not there. Approximately 20–48% of homes with no visible sign
of cockroaches have detectable cockroach allergens in dust.[68]

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As food:
Although considered disgusting in Western culture, cockroaches are eaten
in many places around the world.[88][89] Whereas household pest
cockroaches may carry bacteria and viruses, cockroaches bred under
laboratory conditions can be used to prepare nutritious food.[90] In Mexico
and Thailand, the heads and legs are removed, and the remainder may be
boiled, sautéed, grilled, dried or diced.[88] In China, cockroaches have
become popular as medicine and cockroach farming is rising with over
100 farms.[91] The cockroaches are fried twice in a wok of hot oil, which
makes them crispy with soft innards that are like cottage
cheese.[92][93] Fried cockroaches are ground and sold as pills for stomach,
heart and liver diseases.[94] A cockroach recipe from Formosa (Taiwan)
specifies salting and frying cockroaches after removing the head and
entrails.[95]

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Thank you
Refrences
https://youtu.be/csM2-4rlC3g
https://youtu.be/ENmVXtwsKE8
https://youtu.be/5bEimiIZ9dA
https://youtu.be/CcpRfsLlI2M
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