A separate house is ideal for rearing of silkworm
The rearing house should have sufficient number of windows to permit cross ventilation.
Provision should be made to make it air tight for proper disinfection.
Rearing house has to be built in such a way to provide optimum temperature of 26-28º c and RH of 60-70% for the growth of silkworm at minimum operational cost
The most important principles to be remembered in silkworm rearing house are :
* Damp condition
* Stagnation of air
* Direct and strong drift of air
* Exposure to bright sun light and radiation
* An equable temperature and humidity
* Good ventilation.
Rearing house should be built depending on the brusing capacity and the method of rearing. The rearing area of 2 sq.ft/ dfl for floor rearing and 3 sq. ft/ dfl for shoot rearing is the general criteria.
Rearing house should have a main rearing hall, an ante room (8 x 8 ft) and leaf preservation room. Maintaining a separate chawki room (a must for two- plot rearing system; rearing room of size 10’ x 14’ with a height of 9-10 ft for an acre of garden) ideal.
Rearing house should face east-west direction.
Rearing houose should have facilities to maintain the required environmental conditions.
Growing trees around rearing house helps to maintain favourable environment
Rearing house should be constructed taking consideration he following points such as effective is disinfection, washable floor, etc.
480 sq.ft area is required for rearing 100 dfls.
Preparation of rearing house
Rearing room is to be kept ready after disinfection atleast 3-4 days in advance of commencement of rearing.
Preconditioning of the rearing house is essential ie, arrangement of rearing appliances and provision of essential environmental conditions one day in advance.
Preparation for brushing
- Before commencement of each rearing, the rearing equipments and rearing houses must be thoroughly washed and disinfected with chlorine dioxide.
- Chlorine dioxide is sprayed on equipments, walls, roof and floor uniformly to destroy the disease causing organisms.
- The rooms should be kept closed for about 24 hours after disinfection.
- The doors and windows should be kept open at least for 24 hours before commencement of rearing to avoid traces of disinfectants.
- To disinfect rearing room and rearing appliances, chlorine dioxide can be used. 500 ml of chloride dioxide is mixed with 50 g of activator and this is dissolved in 20 litres of water. To this, 100 g of lime powder has to be mixed.
Non recurring (General)
- Disinfection mask and protective gum shes
- Sprayer for disinfection
- Room heater
- Water air cooler
- Kerosene blow lap
- Wet and dry thermometer
- 6” forceps
- Egg transportation box
- Egg incubation chamber
- Loose egg incubation frame
- Black box
- Chawki rearing trays
- Rearing bottom stand
- Feeding Stand
- Ant wells
- Leaf chopping board
- Leaf chopping knife
- Leaf mat
- Bed cleaning nets
- Earthen pot
- Litter basket
- Late age rearing trays
- Rearing stand
- Shoot rearing rack
- Plastic basin
- Plastic box
- Foam pads
- Foot rugs
- Leaf chamber for late age
- Leaf basket
- Cleaning nets
- Paraffin paper
- Bleaching powder
- Lime powder
- Bed disinfectants
- Slides and cover slips
- Gunny cloth
- Cora cloth