Ex situ
Ex situ is a process to protect a species which is endangered,
variety off its breeds or animal outside its natural habitat in which it is
living. Ex situ management can occur within or outside a species natural
geographic range. In this selection they are not remained under natural
pressure as in wild population.
In situ
In situ conservation involves the preservation of species
and populations of living organisms, in which they are living. This method
preserves the population and evolutionary processes that population adapt in
their natural state within their normal range.
CRYORESERVATION
There are
basically several possible ways to preserve animal genetic resources. One way
to preserve the animal genetic materials are preservation by the method off
cryo genically.
The
materials that are cryogenically preserve sperm, oocytes, embryo and somatic cells.
In coy
conservation the facilities that provide cryogenic are called gene banks, and
they vary in sizes. In Cory conservation the liquid nitrogen is used on
freezing cells tissues with extreme low temperature. This is used to prevent
loss of genetic diversity. In order to preserve genetic material these cells
are collected embryo, somatic cells.
Livestock
cryopreservation is done by using the favourite breeds. The main goal of
preservation threat is that such factors such as globalization using the methods
of cryopreservation we can revive breed that are endangered or extinct or for
that breed improvement.
One effect
of cryopreservation is that its expensive strategy a requires long term
hygienic and economic commitment for germ plasm to remain viable. Animal
genetic resources have values. These values can be direct or in direct or they
can existence, option value
There are
two types of freezing methods
·
Slow
freezing
·
Vitrification
There are
several methods to preserve the genetic materials. Freezing semen is used to
preserve the genetic materials. Freezing semen is used for preservation
purposes.
To collect
the semen artificial vagina is used. There are several equipment’s used to
collect semen on the basis of male breed and species.
In embryo
collection the techniques are difficult as the female organs are inside the
body cavity. Superovulation is used to have more oocytes than the one. To
achieve this hormone gonadotropin is used. In vivo fertilization is more
successful as compared to in vitro fertilization.
Virtification
is the ideal method used in freezing embryo. The preserver needs to preserve
embryos within 3-4 hours.
Oocytes
collection is used in mammal species. After collection the oocytes are assessed
a categorized in different types.
The major
benefit of using oocytes collection matter is that it expands the ability of reproductive
productivity, or we can say the expand the number of productive days an animal
is in her estrous cycle.
Somatic
cells
We can
collect a resources by using cells in case if the gamete are can’t be geted.
These
tissues can be taken via cryopreservation. DNA can be extracted using
commercial kits.
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