Làm Giàu Từ Nuôi Cua Bằng Thức Ăn Công Nghiệp | Nuôi Cua Biển Công Nghiệp Nuôi cua thương phẩm đang được nhiều nông dân ở tỉnh Hà Tĩnh lựa chọn bởi ngoài giá trị thương phẩm cao thì chi phí đầu tư trong nuôi cua không quá lớn, bà con có thể nuôi chuyên canh hoặc nuôi xen ghép với tôm và cá theo mô hình bán thâm canh hay quảng canh cải tiến. Trước đây nguồn thức ăn nuôi cua chủ yếu sử dụng thức ăn tươi sống. Năm 2020 Trung tâm Khuyến nông Hà Tĩnh đã triển khai mô hình nuôi cua có sử dụng thức ăn công nghiệp. Bước đầu mô hình mang lại kêt quả khả quan.
Loại thức ăn: Sử dụng thức ăn công nghiệp loại chìm (các loại sản phẩm thức ăn cho tôm có chất lượng, hàm lượng đạm ≥ 40%) để cho cua ăn. .............................................................. Đăng ký Kênh NongLam TV để cập nhập các thông tin hữu ích về Nông Nghiệp
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Food crabs are being chosen by many farmers in Ha Tinh province.
Because in addition to the high cost of food, the investment cost in crab is not too large.
People can buy specialized soups or crab soups combined with shrimp and fish,
according to the model of selling spicy soups or improved soup pots.
Previously, the source of crab food mainly used live food.
In 2020, Ha Tinh Farming Center has deployed a model of crab farming using industrial food.
The first step of the model brings positive results.
Entering the crab farming in the morning of 2020,
in the area of nearly 1 hectare of crab farms,
Mrs. Pham Thieu Anh's family in Son Tay village, Ky Tho commune, Ky Anh district,
was encouraged to choose to implement the model of crab farming using industrial food.
This is the area that used to raise white-legged shrimp, but often got sick,
with 10,000 crabs released to feed 1 crab per square meter.
After 5 months of farming, the ratio of crabs to live reached 68%,
the crab reached an average weight of 0.3 kg per crab,
which is more than 2 tons per hectare,
with a selling price of 260,000 VND per kg.
After testing, 1 hectare of crab farming according to this model,
has a profit of more than 250 million VND.
Compared to crab farming,
the result of crab farming has increased from 40% to 50%.
The maximum farming time is about 6 months,
and crab farming is carried out in front of a floodplain to avoid potential damage.
Ms. Pham Thieu Anh said,
when crab farming uses industrial food and feeds white-legged shrimp,
it shows that the environmental factors in the area of crab farming,
in general, from the level of salt, pH, to purity,
are very suitable for the marketing and development process of crabs.
Compared to crab farming, which is completely used by white-legged shrimp,
as before, when crab farming uses industrial food,
the family no longer has to worry about finding food for crabs every day.
The fairly smooth management of crab farming,
and higher living standards,
have reduced a lot of investment costs,
and the economic effect is also higher.
In recent years, in Ky Tho Commune, Ky Anh District,
people have brought crabs to farm,
but mainly to farm in Quang Canh,
with low density, so the effect is not high.
In front of this market,
with the consent of Hà Tĩnh Agricultural and Rural Development Office,
Quyến Đông Center has built a model of crab farming in Thầm Canh,
which uses industrial food.
Through the model,
to help people have more new forms,
partly bring economic benefits to the family.
Especially in the farming process,
by applying technical measures in a safe direction,
from no feeding,
water substitution,
and the use of pesticides,
it has greatly improved the management of environmental factors.
The transfer of Thầm Canh sea crab farming technology,
using industrial food for people,
as well as applying this farming process,
will help people get food on their own.
Crab is full of food,
food ensures quality,
restricts water pollution in the farm,
no epidemic,
towards a sustainable model,
bring economic benefits to the farmer.
Since then, the people have continued to stick to the pond,
rest assured to invest in production.
Over time,
the use of industrial food for crab farming,
will gradually be applied to the development of small-scale resources,
make food for crabs from nature,
partly protect the ecological environment,
Thầm Canh sea crab farming,
also help create high-value seafood resources,
ensure quality,
quantity,
supply to the market,
consumer,
domestic and foreign.
The development of Thầm Canh crab farming,
in areas where seafood farming often causes epidemics,
has little effect,
is positive,
both contribute to good development,
strong potential for land,
labor,
and increase the effectiveness of using water surface area.
The use of industrial food in crab farming,
is one of the new technologies,
needs to be widely applied,
remove some difficulties,
that people have had to face before,
about finding a food,
as well as management and care.
At the same time,
there needs to be a policy to encourage,
support households in the crab farming,
use industrial food,
in concentrated areas,
in the areas of farming,
in other regions.
To make it clearer,
about the type of industrial food,
for crab,
and how to eat specifically,
Nong Lam TV,
would like to invite you to see,
the details of the sea crab farming technology,
as follows.
First,
choose and build a crab farm.
The crab farm area,
from 500 to 5000 square meters,
the depth from 1 to 1.5 meters,
has its own water supply and outlet,
should choose to farm,
in shallow areas,
to reduce the cost,
of supplying and replacing water.
Choose to farm,
in the soil area,
which is less polluted,
the base material is,
sand powder,
mixed meat,
not too much mud,
mud layer,
smaller than 10 cm,
pH level,
from 7.5 to 8.2,
and the density,
from 10 to 25%.
The surface of the pond,
should be carefully,
to prevent,
the wind and mud.
The surface,
higher than the water level,
the highest,
at least,
0.5 meters.
Around the pond,
need to make a fence,
fence,
around the shore,
not let the crab,
cross the shore,
outside.
The fence,
must be tilted,
inside the pond,
to avoid,
crab out,
from 0.8 to 1 meter.
Inside the pond,
can dig,
deep holes,
from 0.3 to 0.5 meters,
from the drain,
to the outlet.
The hole,
of the slope,
from the drain,
to the waterway,
can create,
a lot of crab,
area,
each crab,
from 10 to 100 square meters,
depending on the area of the pond.
Each pond,
should have,
two ponds,
at the two ends,
opposite each other.
If the pond,
is rectangular,
then,
two ponds,
will be placed,
on two sides,
of the width,
of the slope.
The second step,
is to,
create a pond,
to remove,
the water,
from the bottom,
to fill,
all the holes,
around the pond.
Then,
we start,
planting,
from 7 to 10 kilograms,
on 100 square meters.
Then,
we have to,
water the pond,
for 3 to 5 days.
Then,
we have to,
water the pond,
for 3 to 5 days.
Then,
we have to,
water the pond,
for 3 to 5 days.
Then,
we have to,
use,
urea and,
NPK,
with the amount,
from 2 to 3 kilograms,
on 1000 square meters,
dissolve,
with,
sweet water,
pour into the pond,
in about,
9 to 10 am.
After,
3 to 5 days,
the water is colored,
proceed,
to measure,
environmental factors,
to ensure,
the density is,
greater than,
10 percent,
the pH,
from 7.5,
to 8.5,
the temperature,
25 degrees Celsius,
when,
we proceed,
to water,
the pond,
in about,
9 to 10 am.
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