Abstract
Problems encountered in incubating channel catfish embryos (Ictalurus punctatus) were solved at the Kansas Forestry, Fish and Game Commission hatchery by several ingenious developments in the 1920's. Spawns were collected from containers placed in spawning ponds and masses of embryos were placed into wire cages set in metal troughs housed in the hatchery building. Over each cage a metal plate was caused to move back and forth to force water through the mass of embryos. The movement of the plates simulated the fanning action of male fish over the embryos and excellent hatching success was obtained. Considerable difficulty was encountered in attempts to feed small fish. Supplemental feeding of dried buttermilk and meat scraps produced only fair growth. Numerous investigations on various phases of channel catfish nutrition were discussed. The authors proposed certain restrictions on nutritional requirements of fingerling channel catfish.
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Schedule a callMore From: Transactions of the Kansas Academy of Science (1903-)
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