Aquaculture America 2024

February 18 - 21, 2024

San Antonio, Texas

EVALUATION OF DIETS CONTAINING SORGHUM AT DIFFERENT LEVELS OF THERMAL ENERGY ON GROWTH PERFORMANCE OF THE PACIFIC WHITE SHRIMP Litopenaeus vannamei

Trinh Ngo*,  Tucker Graff ,  Sajid Alavi  and  D.  Allen Davis

 

 School of Fisheries, Aquaculture and Aquatic Sciences

 Auburn University

Auburn, AL 36849

thn0006@auburn.edu 

 



 

Sorghum, which is one of the most sustainable cereals can be used as a potential source of carbohydrate in animal feeds. This study aims to evaluate the growth performance of white shrimp  juveniles fed  diets containing sorghum and whole wheat  when processed at different levels of  thermal  energy input . Six diets  containing sorghum and whole wheat at different  levels of process energy inputs (low, medium, and high) were  formulated  and extruded under controlled conditions using a Wenger X-20 single screw extruder.  In this study, these treatments were assigned amongst 40 tanks with six replicates per treatment diet .  Additionally, a commercial diet was also included as a reference but utilized four replicates. Shrimp juvenile s (initial weight 0.82 g) were  randomly  stocked at a density of 15 shrimps per tank and were maintained in  a semi-closed recirculating system .  They  were fed four times per day using a standard ration over the 42-day growth trial .  After six weeks, there were no significant differences in final weight,  weight gain,  survival rate, and FCR among treatments. However, the r esults  showed  that  thermal energy input during extruding did not have a noticeable impact on shrimp  growth or whole-body energy.  These findings indicate  that  grain sorghum can  serve as a carbohydrate source to replace  whole wheat  in shrimp diets.