HATCHERY REQUIREMENTS 



39 



Table 4. continued. 



ITEM 



HATCHERY 

 SYMBOL 



CRITERIA 



Hatchery buildings {continued) 

 Crew room T C 



Garage and storage 

 building 



Shop 



Oil and paint 

 storage 



Fertilizer and 

 chemical 

 storage 



W 



w 



w 



w 



w 



Room should provide locker space for each 

 employee, and be adequate to serve as a 

 lunch room. Shower facilities should be pro- 

 vided. 



Size of building or buildings is dependent 

 upon the number of truck stalls required 

 and the amount of material to be stored. 

 Concrete floors should be broom finish with 

 a 1" in 10' slope to doors. 



Minimum of 300 square feet, floor 1" in 10' 

 slope to door or center drain. Provide heat- 

 ing and electrical systems to satisfy require- 

 ments, including 220-volt outlets; overhead 

 door should be at least 10 feet wide and 9 

 feet high. Build in cabinets for tool storage 

 and adequate work bench area. 



Provide a separate building, or materials may 

 be stored in another building if a special 

 room rated for a '2-hour fire, with outside 

 access, is provided. The electrical installa- 

 tion should be explosion- proof. Provide 

 heat if storage of water base paints is con- 

 templated. 



Explosion-proof electrical fittings and positive 

 ventiliation must be provided. 



Egg Incubation 



Incubation equipment is being modified constantly and several different 

 types are available commercially. There are basically two concepts for the 

 incubation of fish eggs. One method involves the use of wire baskets or 

 rectangular trays suspended in existing hatchery troughs to support the 

 eggs. The hatched fry drop through the wire mesh bottom of the basket or 

 tray to the bottom of the trough. This method does not require additional 

 building space because existing facilities are utilized. Other methods of egg 

 incubation are jar culture or vertical tray incubation. Additional space in 

 the hatchery building is required for this equipment. Control of water tem- 

 perature should be part of any hatchery design involving egg incubation 

 and hatching of fry. Heating or chilhng of water for optimum incubation 



