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Folder Title: An Introduction to the Tentative Design and Other Tasks of Zhanhua Countrys Prawn Breeding Project

Folder ID: F28506

Project ID: P003552

Dates: 9/14/1989 – 12/31/1994

Fonds: Records of the East Asia and Pacific Regional Vice Presidency

ISAD Reference Code: WB IBRD/IDA EAP

Digitized: 4/13/2017

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An Introduction to the Tentative Design and Other Tasks of Zhanhua Countrys Prawn Breeding Project

AN INTRODUCTION TO THE TENTATIVE DESIGN & OTHER ,

TASKS OF ZHANHUA COUNTY ' S PRAWN-BHEEDING PROJECT

The basic condition of Zhanhua County, the

breeding super iority and the f easibility and the

necessity of the pr oject were , in detailed , intro­

duced to the Investigation Group of the World Bank

in the March of t he year . Now , we shall introduce

the main tasks , which were done by us after the in­

vestigation , as follows.

I. The Tentativ e Design of Zhanhua County ' s

Prawn- Breeding Project

The design group , which is composed of the

engineering technical personnel of the Zhanhua Coun­

ty ' s Water Conservancy Design Office and the Buil­

ding Units associated with the project , will be in

charge of the project and arrange the project with

the best reasonabl e and the best advanced in the pro­

duction and technology, according to the demand of

the project unit, to the high standard and to the

guilding thought of the high efficiency in order to

achieve the best efficiency.

The tentative design will be divided into

six sub-projects .

1. The Design of the Prawn-Breeding Farm

1 • 1 • The Design Scale

The actual prawn-breeding area is 2000 bee-

tares, it takes up the land area of 2400 hectares

and the 600 prawn ponds will be built up.

1.2. The Design Standard

The prawn ponds will b~ arranged in six

rows . The area of each pond will be 3.35 hec t ares

with the proportion of 6 (1) : 1 (W). The highness

of the pond bank will be 3 metres . The slope of

the bank will 1:3, the width of the bank top will

be 4 metres and the depth of the wa~er will be 2.3-

2.5 metres.

The inlet and outlet chann~ls wil l adopt

the method of three inlets and fouJ outlets, that

is three inl et channel s and four outl et channel s.

1.3 . Conveyance System

In order to meet the requirement of the

2

"'

production, 2 coiltrolling gat es, 1 highway bridge,

17 production bridges and 1200 inlet and outlet

gates of the prawn ponds will b~ buil t up. And 1

transformer substation with 6000 Kw, 2 pumping sta-?

tions with each having a flow capacity of 45 mJ/s ,

34 Km highway in/ out the farm, the fresh water­

introducing pipe of 10000 metres, the channels of

13670 metres, 600 management houses and the power

lines will also be built up.

2. The Design of the Youngprawn-Breeding Farm

2.1. The Design Scale

The design project is composed of 9 young­

prawn-breeding houses, with each having 500 m3 wa­

ter-body and altogether 4500 m3 water-body. The

constructed area will be 664 m2 • The attached en­

gineerings are 1 boilerhouse with 160 m2 , 1 blower­

house with 30 m2 , 1 generator set house with 100 m2

and other public houses of 1380 m2 , altogether 7646

m2

of the constructed area. The structures to be

constructed will be 4 first-step precipating ponds

with the water-body of 15000 m3 , 4 second-step pre-

3

cipating ponds with the water-body of 3000 m3 and

1 deeper precipating pond with the water-body of

1500 m3 which will be built up by using the brick

banks.

2.2. The Building Engi~eering

The youngprawn-breeding houses will adopt

the brick and concrete structures with the span of

15 m, the frames will adopt the light-duty rein­

forcing bar structures with the pillars of the rein­

forced concrete supporting the horizontal force of

the frames and the top of the house will adopt the I

glass fibre reinforced plastic tiles. The youngprawn-

breeding ponds will adopt the reinforced concrete

structures with the two ends using the roofs of the

reinforced concrete, one end being the laboratory

and management rooms and another being the pond of

the feed materials.

2.3. Attached Engineering

The water, air, heat and electricity engin-. .

eerings will be designed according to the required

amount of the youngprawn-breeding ponds ''fi1 th the

water-body of 4500 m3. In the generator set house~

4

1 set of diesel set of 200 Kw, 1 set of diesel set

of 120 Kw and 1 set of transformer of 315 KVA will

be installed . In the pump house, 12 sets of centri­

fugal pumps of Model 6BA- 8 will be installed. In

the blowerhouse , 5 sets of the blowers of Model

132-1 5/0 . 5 and 6 sets of the blowers of Models 120-

10/0 . 5 will be installed.

In the youngprawn- breeding houses, the pl~­

tic pipes with holes on them will be placed on the

bottom of the pond to gas and hydrogenate the water

and the heating pipes will be packed with the plas­

tic film to prevent rust .

3. The Design of the Feed-Process Factory

3.1. The Design Scale

The factory will have a process capacity of

9000 tons per year and take up the land area of

10557 . 2 m2 among which , the main workshops are the

area of . 857.2 m2 , the raw material storage house and

finished product storage house are the area of 2000

m2 , the material- sunning stand is the area of 6000

2 2 m and other public places are the area of 1400 m.

5

3.2. The Building Engineering

The building will consist of four storeries

wh ich adopt the reinforced concrete structures. The

top wil l be the fabricated plates of the reinforced

concrete and be treated with the thermal insulation

materials. The base will be designed according to

the local actual condition.

3. 3 The Productive Technology

The feed- process factory wil l possess the

feed grinders, the sifters, the mixers, the formers,

the driers and the packing machines which will be

selected according to the design.

4. The Design of the Pumping Station

4 . 1 • The Design Scale

Two pumping station with a flow capacity of

45 m3/s wil l be built up .

4 . 2. The Main Design Targets

The water l evel of the inlet pond is 5.2 m

and the wate r level of the outlet pond is max . 2 . 5

m, min . o . oo m.

6

4.3. The delivery lift to be designed is

6.7 m.

4.4. The Flow Capacity to be Designed

The flow capacity of each unit is 3 m3/s

and the total flow capacity is 90 m3/s .

4.5. Attached Devices

30 sets of axial flow pumps of Model 900

ZLB-100 , 30 sets of motors of Model JSL-15-10, 35

sets of distribution boards of Model GG-10-03, GG-

10- 09 and GG- 10- 54 , and 15 sets of controlling

boards of Model PK 1/800 will be installed . The

installed capacity is 30 x 260 Kw= 7800 Kw.

4.6. The Building Engineering

The engineering consists of the machinery

room, the distribution room, the channels, the in­

let and outlet ponds and the banks.

5. The Design of the Cold Storage with the

Capacity of 1500 Tons

According to the demand of the prawn-bree­r

d i ng farm scale, the cold storage should be rational

7

in the arrangement, compl ete in the facilities

and advanced in the production devices and tech­

nology to reach the demand of the qualjty stan­

dard.

5.1. The Building and Structure

r hree dold storages will form a body and

the cold storage and ice storage will form a body.

The thermal insulation materials on the roofs and

walls are the rice husk and the foamed plastic pla­

tes and the thermal insulation materials on the

ground are the soft wood . The main body and the a­

ttached engineering of the dold storage adopts the

brick and concrete structure.

5.2. Refrigerating Enginee ring

The refrigerating engineering is t wo systems.

One is the refrigerating and storage system and a­

nother is the ice-making and ice-storaging system. 0

the former with the temperature of - 33 C and the ln-0

tter with the temperature of -1 5 C.

5. 3. The Electricity Engineering

The i nstalled capacity to be designed is

1227.96 Kw and the supply power is introduced through

the 10 KV U .ne.

8

5 . 4. The Engineering of the Supply Water and

Drainage Water

The engineering will be use for the wa'IEr

of the production and life with the max . amount

of 42 m3 and the average amount of 2 10 m3•

6. The Design of the Technology Service

Centre Engineering

The technology service centre will composed

a building of three storeries and take up the land

area of 1500 m2 • The constructed area will be 1000 2

m and adopt the concrete structure.

The teaching devices , the testing devices

and the other instruments will be installed in the

building.

II. The Budgetar y Estimate of the Zhanhua

County ' s Prawn- Breeding Prdject Engineering

1 • The Total Engineering Amou11 t of the Project

In accordance with the tentative design ,

the engineering amount will be estimated budgetaryly

as follows: cubic metre of earth : .27454. 20 thousand

m3 ; cubic metre of stone: 25.3 thousand m3 ; cubic

metre of re i nforced concrete: 56 . 8 ,thous and m3 and

9

t he total investment: 8 3390 thousa nd yuan.

2 . Devices and Instruments

According to the product i vity of the prawn­

breeding farm, the youngprawn- breeding farm, the

feed- process factory and the storage, 1597 sets of

varieties devices and instruments will be needed and

the investment will be 9390 thousand yuan .

3. The Demand Amount of Goods and Materials

According to the tentative design and the

building standards, the demand amount of the goods

and materials will be estimated budgetaryly as fol ­

lows: steel: 2807 . 5 t ; wood: 1593 m3 ; disel oil:

4437 t ; gasoline: 805 t; machine oil: 200 t; cement:

7337 t: asphalt: 150 t; chemical fertilizer: 2000 t;

fish powder : 3000 t; and the investment: 16870 thou­

sand yuan ( where, the wood is 5670 thousand yuan.).

4 . The Resource of the investment and Prepare

of the Other Funds

The loan from the World Bank is 44200 thou-

10

sand yuan, the loan from the Province is 2400 thou­

sand yuan, the l oan from the Region is 13830 thou­

sand yuan and the funds prepared by the County is

51340 thousand yuan . The main resource is 25000

thousand of the labour cost, 10340 thousand prepared

by the local , 7000 thousand yuan from the agricultu­

ral bank, 3280 thousand from the building bank and

the total investment above-metioned is 133370 thou­

sand yuan .

III . The Project Income , Specification , Producti­

vity and the Demand of Raw Materials

1. The Technical Specification of the Project

rhe prawn- breeding ponds will be 600 ponds

and each will have the area of 3.35 hectares. The

proportion of the ponds ' (1) and (W) is 6: 1 and the

water depth will be 2.3 - 2 . 5 m. 225 . 3 thousand

youngprawn will be put into the one heactare, that

is 225.3 thousand youngprawn/one heactare . Each f

hec tare will produce 1. 5 tons. In th~ youngprawn- · ' /

breeding house , 200 thousand youngprawn will be put

into the one water- body, that is 200 thousand young-

1 1

prawn/one water-body. The standard of youngprawn

out of the ponds will be 0.7 - 1 cm and the dia­

meter of the feed is 0.2 - 0 . 25 mm .

2. The Productivity of the Project

The breeding area of the prawn-breeding

farm wil l be 2000 hectares and it will produce the

prawn of 3000 tons . The water-body of the young­

prawn-breeding far m will be 4500 m3 and will breed

the youngprawn of 900 million. The feed- process fac­

tory wil l produce the feed of 9000 tons per year .

The cold storage capacity will be 1500 tons , the

quickly refrigerating capacity will be 90 tons/day

and the ice-making capacity will be 30 tons/day .

3. The Demand of the Raw Material s

rhe prawn- breeding farm will need the feed

of 34500 tons among which, the mixed feed is 7500

tons and the fresh-liv i ng materials are 27000 tons .

The elec t ricity wi ll need 242 34 thousand Kwh . The

coal will need 60 tons . The gasoline and d iesel oil

1 2

wil l need 250 tons . The chemical fertilizer will

need 150 tons. The youngprawn-breeding farm will

need the parent prawns of 30 thousand , the el ec­

tricity of 500 thousand Kwh , the coal of 1500 tons,

and the gasoline and diesel oil of 75 tons. The

feed - process factory will need the cake materials

of 4500 tons, the fish and prawn materials of 1260

tons , the fish powder of 1350 tons, the wheat bran

of 900 tons , the electricity of 72 thousand Kwh,

the coal of 350 tons and the gasoline and diesel

oil of 15 tons . The cold stor.age factory will pro­

duce the prawn of 3000 tons and need the electri­

city of 4500 thousand Kwh, the coal of 50 tons and

the gasoline and diesel oil of 150 tons .

4. The Project Income

The pr a wn- breeding farm will sell the prawns

of 3000 tons per year and its incqme will be 45000

thousand yuan. Besides the business cost of 26331 . 6

thousand yuan , the gross income will be 18668.4 thou­

sand yuan. The feed- process factory will sel l the

feeds of 9000 tons per year. Besides the business

cost of 9052 thousand yuan , the gross income will be

848 thousand yaun . The youngprawn-breeding farm wil l

1 3

sell the youngprawn of 900 million pieces per year

and its income will be 4500 thousand yuan . Besides

the business cost of 2227 thousand yuan, the gross

income will be 2273 t housand yuan. The cold storage

factory will s ell the prawns of 3000 tons per year

and its income will be 6000 thousand yuan. Besides

the business cost of 3212 . 9 thousand yuan , the gross

income will be 2787 .1 thousand yuan . The gross in­

come above- metioned will be 24576. 5. thousand yuan .

IV. The Foresight of the Prawn Markets at Home

and Abroad

The situation of the prawn markets is good.

Along with the development of our country's foreign

trade and the raising the standard of our people ' s

life, the prawn products will not be able to meet

the demand of the markets at home and abroad . Jud­

ged by the requirement of our country, the water pro­

ducts consumed by one person per year will be min .

15 Kg . Now , the actual output is onl y 8 . 2 Kg/ one

person. Judged by the demand of the foreign markets,

the markets of Japan, the United States and the West

Europe have a trend of the increase year after year

and the increase is big, especially the prawn which

14

have the feat ures of hi gh egg wh i te , low fat, ten­

der meat and low price. The prawn products have a

tronger competive-force on the markets and sell

well on the markets. Some detailed informat i on will

be seen on the List of the Prawn-Selling Situation

and the Situation of the World Three Big Markets

F'or Importing the Prawn by Zhanhua County.

It is foreseen that the situation in future

will be good . ·For the sel ling , the domestic market

wil l take up 80% and the export wil l take up 20%.

Some detailed information about the market fore­

sight will be seen on the List . Generally speaking,

along with raising the standard of people's life ,

we should develop the prawn-breeding industry, and

increase the output to meet the requirement of the

markets at home and abroad.

Attached: The List of Sales Channel,Size, and

Quantity of Prawn Sold in 1987 in

Zhanhua County

The Situation of the World Three Big

Markets for Importing the Prawn by

Zhanhua County

1 5

The Foresight List of the Size ,

Quant ity and Price of Prawn to be

Sold in the Zhanhua County ' s Prawn­

Breeding Project

The Price List of the Prawn to be

Sold

V. The Business Cost of the Project and the

Budgetary Estimate of Circulating Fund

1. Annual Business Cost Under Normal Condition

The feed will need 9000 tons ( 1 . 022 thou­

sand yuan/ton) and 9202 thousand yuan. The young­

prawn will need 900 ·million pieces ( 2 . 725 thou­

sand yuan/ one million pieces ) and 2452 . 6 thousand

yuan. The annual output of the prawn will be 3000

tons ( 9.295 thousand yuan/ton) and 27885 . 6 thou­

sand yuan. The cold storage will process the prawn

of 3000 tons ( 1. 180 thousand yuan/ton) and 3540 . 3

thousand yuan. The business cost above-met ioned will

be 43085 thousand yuan.

2. The Budgetary Est i mate of Circulating Fund

1 6

According to the productivity of the pro­

ject , to the demand of the raw materials and to

the busi ness cycle, the circulating fund is esti-

ma ted . The project needs the reserve fund of

7307.6 thousand yuan, the production fund of 16442 . 8

thousand yuan and the product fund of 149.6 thou­

sand yuan , altogether the circulating fund of

23900 thousand yuan.

VI. Playing the Role of the Cold Storage and

Making full us~ of the Non-Normal Harvest

1. Guilding Thought

The cold sto~age is the sub-project in the

Zhanhua County 's prawn-breeding project. So, after

building and putting into operation , the full use

must be made to increase its economic benefit.

2. The cold storage must be fully used in the

non-normal harvest , do the cold manufacture business

for the comprehensive business. The actual method

is as follo ws:

2 . 1 . Besides the cold of the prawns , the cold

17

storage will be able to store other aquatic pur­

chased by us in order to process and sell for in­

crea sing the income .

2.2 . To transfer and store the products for

others to get the transf ering and storing cost.

2 .3. To freeze the products for others to

get t he manufacturing cost .

2.4. To store the products for a long time for

others to convenient for them.

3. Playing the Role in the Non- Normal Harvet

Besides the manufacturing and storing the

prawns from Oct . to Dec . in a year , the colds­

torage can be used to manufacture other products

from Jan. to Sept. in the next year to make the

products stored varieties.

3.1. It can store the fresh- living materials of

5000 tons which is needed to breed the prawn.

3 . 2 . It can store varieties of fish and other

aquatic products of 500 tons .

3.3 . It can store .varieties of meat .

18

3.4 . It can be responsible for the store of

the livestock and poultry products of 200 tons

for the fore ign '. trade unit .

3.5. ~he con~tant temperature storage can be

used to store the vegetables and fruits .

4 . To ensure the quality of the products , we

shoul d do the following works : to strengthen the

technical guilde, to trai n the production person­

nel and to increase the technical personnel of the

free z ing and manufacture.

5 . To make them good to store and manufacture ,

to service for the users and to open the economic

channel in order to achieve higher profit resource .

VII. The Introduction of the Construction Plan

from the Winter of 1988 to the Spring of

1989

To put the Zhanhua County's prawn- breeding

project into effect, we specially make the construe-

1 9

tion between the winter in this year and the spri ng

i n t he next year. The plan should be explained as

follows:

1 . rhe Guil ding Thought

To ensure the implementation of the project ,

we are going to put it into effect in advance and

to invest earlier, put into operation earlier and

get benefit earlier .

2. The primary construction scale will take

up the land of 166.7 hectares.

3. The engineering amount to be completed will

be: cubic metre of earth: 1500 thousand m3 ; cubic

metre of stone: 1 .6 thousand m3; cubic metre of con­

crete: 3.6 thousand m3; the bridges and gates: 102

sets; inlet & outlet channels: 5600 m; the management

rooms: 1000 m2 ; the feed-throwing boats: 50 sets ;

the highway: 8 Km; the river to be ditched: 2900 m;

the pumping stations: 45 sets; and the transformer

sustation with 6000 Kw : 1 set .

20

4 . ~he investment of the primary construc-

t i on wi ll be 13337 thousand yuan and take up the

10 per cent of the total investment .

5. The Prepare of the Fund and Resource

The loan of 4000 thousand yuan will be

from the World Bank , the loan of 1000 thousand

yuan from the Province , the loan of 1000 thou­

sand yuan from the Region and the fund prepared

by the County will be 7337 thousand yuan , alto­

gether the investment of 13337 thousand yuan .

2 1