H. Randall Robinette

A defatted rice bran (DRB) product was evaluated as a potential ingredient in practical channel catfish (lctalurus punctatus) feeds by partial substitution of control feed ingredients. Fingerlings in aquaria were fed I of 4 feeds: 0 (control) - a standard commercial feed, 1 - DRB replaced regular rice bran, 2 - DRB replaced some com, soybean meal, and rice bran, 3 - DRB replaced some com, fish meal, and rice bran. There were no significant (P > 0.05) differences in survival or feed conversion among fish fed the 4 feeds, but fish fed feed 2 had a greater weight gain than fish fed feed 0...

Fingerling channel catfish (lctalurus punctatus) fed a 25% crude protein practical feed grew as well as or better than fingerlings fed a 35% crude protein practical feed in both Mississippi and Arkansas ponds during 2 consecutive winters. Fingerlings in Texas grew better on the 35% protein feed, although poor survival may have affected the results. The 35% protein feed provided no growth advantage to adult fish in Mississippi. Both feeds had equivalent energy to essential amino acid ratios and both contained 12% fish meal. There were minimal differences in feed conversion ratios and...

A feeding study with channel catfish fingerlings (Ictalurus punctatus) was conducted in the winters 1975-76 and 1977-78, a mild and severe winter, respectively. In both years, fish in 3 ponds were fed 3 days per week and fish in 3 ponds were fed 6 days per week. In the 1975 study, fish fed 3 and 6 days per week averaged 10% and 45% weight gain with a mean feed conversion of 2.63 and 2.90, respectively; fish fed 6 days per week had significantly (p < .10) greater weight gains than the fish fed 3 days per week. In 1977 fish fed 3 days per week gained an average of24% and had a mean...

The feasibility of raising rainbow trout with Dver·wintering channel catfish in 0.04 ha (0.1 acre) ponds was examined. Three treatments with three replications were used; (1) 200 rainbow trout fed three percent offish weight per day, (2) 100rainbow trout and 75 charmel catfish fed three percent of trout weight per day, (3) 100 rainbow trout and 75 channel catfish not fed. Trout grown alone showed slightly higher gains than those grown with catfish and receiving feed. and were statistically significant (P<.05). Both trout and catfish not fed showed statistically significantly less gain...

Remotely sensed data and ground truth data were collected simultaneously from 16 experimental ponds during 6 days in June and July, 1974. Color infrared images were taken with hand-held 35mm cameras from single engine aircraft. Numerical color values for pond color were obtained visually matching the pond color with a Munsell Color System chip which had a standardized numerical value assigned to it. Ground truth data involved the determination of 14 chemical, physical, and biological parameters. Regression analysis indicated a significant correlation (P<.01) existed only between total...