Saki Hikari Growth Experiment

The Hikari Koi Food Experiment:

This experiment was conducted by a customer of ours, a hobbyist, who used his recent spawning of Chagoi for his son's school science project experiment.

The idea was to take some babies from the spawning and to grow them in differing conditions to establish the effects these would have on  Koi growth and development.

Two 2m porta ponds were set up and 14 baby Chagoi were randomly selected for each pond. 7 fish in each pond were selected as being 'genetically superior' and 7 as 'genetically inferior' - based on the size of the fish at the time of selection. In other words the genetically superior Koi were fish that were substantially larger already than their smaller siblings.

Pond 1 was heated to 25C and fed 5 times daily with Saki Hikari Growth diet. These are the results:

TEST POND 1           
Genetically           04 April 2007            25 May 2007                 Growth
Inferior fish WEIGHT (Gm) LENGTH (mm) WEIGHT (Gm) LENGTH (mm) WEIGHT (Gm) LENGTH (mm)
1 30 115 140 210 110 95
2 40 135 340 275 300 140
3 50 155 320 260 270 105
4 60 155 420 280 360 125
5 80 175 400 280 320 105
6 240 245 860 360 620 115
7 240 250 680 345 440 95
TOTAL 740 1230 3160 2010 2420 780
             
             
Genetically           04 April 2007            25 May 2007                 Growth
Superior fish WEIGHT (Gm) LENGTH (mm) WEIGHT (Gm) LENGTH (mm) WEIGHT (Gm) LENGTH (mm)
1 160 221 680 335 520 114
2 180 230 700 350 520 120
3 180 230 740 355 560 125
4 200 230 840 360 640 130
5 220 240 880 365 660 125
6 340 265 1000 380 660 115
7 380 285 1600 390 1220 105
TOTAL 1660 1701 6440 2535 4780 834
           

 

Pond 2 was left at ambient, around 15C on average and fed once a day with Hikari Economy. These are the results:

TEST POND 2