Evaluation of ultra‐low gossypol cottonseed and regular glandless cottonseed meals as dietary protein and lipid sources for Litopenaeus vannamei reared under zero‐exchange conditions Academic Article uri icon

abstract

  • © 2016 John Wiley & Sons Ltd. The current study evaluated transgenic cotton lines with normal levels of gossypol/terpenoids in the vegetative and floral tissues, but with ultra-low gossypol in the seeds as a replacement for glandless cottonseed meal (GCSM) and fishmeal. A 64-day growth trial evaluated the ability of cottonseed meals from a natural glandless cotton variety/mutant, two transgenic Ultra-low Gossypol Cottonseed (ULGCS) lines, a non-transgenic parental control and a commercial variety, to replace 355 g kg-1 fishmeal in a diet containing 350 g kg-1 crude protein. Juvenile Litopenaeus vannamei (1.48 ± 0.29 g) were stocked (40 shrimp m-3) with six replicates. No significant differences were found between all formulated diets in terms of final weight, survival and feed conversion ratio. The commercial cottonseed variety displayed a significantly lower feed efficiency ratio and protein efficiency ratio than one of the ULGCS diets. These results suggest that GCSM and/or transgenic ULGCS meals can be used to replace fishmeal in commercial shrimp diets.

author list (cited authors)

  • Richardson, C. M., Siccardi, A. J., Palle, S. R., Campbell, L. M., Puckhaber, L., Stipanovic, R. D., ... Samocha, T. M.

citation count

  • 7

complete list of authors

  • Richardson, CM||Siccardi, AJ||Palle, SR||Campbell, LM||Puckhaber, L||Stipanovic, RD||Wedegaertner, TC||Rathore, KS||Samocha, TM

publication date

  • February 2015

publisher