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