TOTAL SULFUR AMINO-ACID REQUIREMENT OF JUVENILE HYBRID STRIPED BASS (MORONE-CHRYSOPSXM-SAXATILIS) Academic Article uri icon

abstract

  • Two separate feeding trials were conducted to determine the total sulfur amino acid requirement of hybrid striped bass. Semipurified diets containing 35% crude protein from fish muscle and crystalline amino acids were supplemented with graded levels of methionine. Each diet was fed to juvenile fish in triplicate aquaria receiving freshwater for 8 weeks. Fish fed the basal diet which contained 0.38% methionine and 0.13% cystine experienced complete mortality within 1 week. Prior to death, some fish fed inadequate methionine were observed to have bilateral cataracts. Weight gain and feed efficiency of fish were significantly (P<0.01) affected by supplemental methionine. Regression analysis of weight gain data using the broken-line model indicated a total sulfur amino acid requirement (s.e.) of 1.0% (0.02%) of dry diet or 2.9% of dietary protein. 1993.

published proceedings

  • AQUACULTURE

author list (cited authors)

  • KEEMBIYEHETTY, C. N., & GATLIN, D. M.

citation count

  • 73

complete list of authors

  • KEEMBIYEHETTY, CN||GATLIN, DM

publication date

  • March 1993