122 FISH HATCHERY MANAGEMENT 



Column 27: Record the Monthly Temperature Units per inch of gain for 

 the current month. For new lots, this is Column 25 ^ Column 20. For pre- 

 existing lots, this is Column 25 ^ Column 24. 



Column 28: Record the Monthly Temperature Units required per inch of 

 gain to date. This is Column 26^ (Column 19 — length at initial feeding). 



TOTALS AND AVERAGES 



Totals in Columns 4, 5, 6, 7, and 8 are the sums of entries in their respec- 

 tive columns. 



The last entry for Columns 10, 12, 13, 15, and 16 is used as the total for 

 the respective column. 



For Column 17, the aggregate feed cost per 1,000 fish is Column 

 13 H- Column 5. 



Totals or averages for Columns 18 through 28 have been omitted for this 

 form. 



Hatchery Production Summary 



The Hatchery Production Summary is prepared at the end of each month 

 (Figure 4l). Entries on this form are taken from the Lot History Produc- 

 tion (LHP) chart. Hatchery Production Summaries provide cumulative 

 monthly information for all production lots reared at the hatchery on an 

 annual basis. Once a lot has been entered on this form, the lot should be 

 carried for the entire year. When a lot is closed out during the year, entries 

 in Columns 2, 3, 4, 13, and 14 will be omitted for the month the lot was 

 closed out and for the remaining months in that fiscal year. 



DEFINITIONS 



Density index is the relationship of the weight of fish per cubic foot of water 

 to the length of the fish. 



Flow index is the relationship of the weight of fish per gallon per minute 

 flow to the length of fish. 



Weight of fish is the total weight on hand from Column 3. 



Length of fish is the average length of fish on hand from Column 4. 



Cu ft water is the total cubic feet of water in which each lot is held the 

 last day of the month. 



GPM flow is the total hatchery flow used for production lots the last day 

 of the month. Water being reused though a series of raceways is not con- 

 sidered; however, reconditioned water (e.g., through a biological filter) is 

 included in the total flow. 



