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Modified Wednesday, December 22, 2004

Fisheries Experiment Station

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1997 feed trial comparing BioKyowa-C to Silver Cup

1/13/97 — We decided to place four lots of fish on Bio Kyowa-C diet and the other four lots a vitamin-boosted Silver Cup diet.

Results of six-month study:

Lot number Diet fed Fish/lb
start
Fish/lb
end
Feed conv. Feed cost/lb gained Daily growth
94SKJNLot-8 Silver Cup 86.10 23.70 1.62 $0.68 .008"
94SKJNLot-4 " " 78.21 25.43 1.93 $0.86 .007"
Brood-2 " " 1.71 1.42 5.74 $1.48 .004"
95SKJNLot-4 " " 84.61 27.06 1.92 $0.85 .007"
Brood-1 BioKyowa-C 1.61 1.33 3.98 $25.88 .004"
94SKJNLot-11 " " 54.90 37.90 1.01 $6.57 .013"
94SKJNLot-6 " " 71.75 40.50 1.26 $8.20 .013"
93SKJNLot-2 " " 9.52 3.80 1.45 $9.40 .011"

Results of six-month study on crippling: mouth, vertebral, cranial, operculum and fins were checked for crippling before and after feed trial.

Diet feed Percent
 crippled before 
Percent
 crippled after 
Percent
 increase 
Silver Cup 29% 77% 48%
Bio Kyowa-C 13.5% 21.8% 8.3%

Note: It was obvious from this feed trial that the BioKyowa-C was a much better diet for the June sucker. The only negative is the feed cost of the BioKyowa, but when the overall fish health was compromised by feeding the Silver Cup diet it is was determined that the BioKyowa was well worth the added cost.