Appendix. 7 3 



Howietoun we use six boxes, or 30,000 fry (nominal) to 

 stock each pond. The loss is almost entirely due to 

 cannibalism, which in a rearing pond is more prevalent 

 than in aji open stream. After the yearlings are caught 

 and sized there is no further loss. Six boxes of fry 

 would cost 30. 



(c) COST OF MANAGEMENT, FOOD, ETC. 



Each pond would require between stocking in May or 

 June and emptying in April, 15 cwt. of horse flesh and 

 about 1 cwt. of liver on first stocking. Horse flesh can be 

 bought in Glasgow, 



15 cwt. would cost about . 300 



And 1 cwt. liver about 100 



In all 4 



Say 4 per pond per annum. There is still to add 

 the proportion of the attendant's time about 2 hours per 

 day per pond say 12 per annum. Until the attendant 

 was trained, it would not be reasonable to expect more 

 than 7000 yearlings per pond. Thus three ponds would 

 be required to ensure 20,000 yearlings. 



COST OF STOCKING BY MEANS OF REARING PONDS 

 CAPITULATION. 



Three ponds at 120, 360 ; add inlet and outlet 



works and inlet pipe, say 40, in all 400 ; and allow 



interest and up-keep at 3 per cent., repairs 9J per cent. = 



12 J per cent, on 400, . . 50 



Food, three ponds at 4, . 12 



Attendance, 6 hours per day, . 36 



Cost of ponds per annum, . 98 



And 18 boxes of fry at 5, . 90 



188 



