Use of Lipid‐Extracted Distillers Dried Grain with Solubles (DDGS) in Diets for Pacific White Shrimp

Abstract

A series of trials (one growth trial and two digestibility trials) were conducted to evaluate the response of Pacific white shrimp Litopenaeus vannamei to the inclusion of lipid‐extracted distillers dried grain with solubles (LE‐DDGS). In the growth trial, a practical basal diet was developed for shrimp using soybean meal (56.76% diet) and fish meal (6% diet) as the primary protein sources. The LE‐DDGS was substituted for soybean meal on an isonitrogenous basis at five levels of inclusion (0, 10, 20, 30, and 40%) with lysine supplemented to diets containing 30% and 40% LE‐DDGS. A sixth diet containing 40% LE‐DDGS but without a lysine supplement was also evaluated. The diets were offered to four replicate (15 shrimp/tank) groups of shrimp per treatment over an 8‐week growth trial. At the end of the growth trial shrimp offered diets containing from 0% to 20% LE‐DDGS performed similarly. Performance of shrimp fed higher levels of LE‐DDGS was reduced but similar to each other. Removing the lysine supplement from the diet containing 40% LE‐DDGS did not result in reduced performance of the shrimp, indicating lysine was not limiting in these feeds. In two digestibility trials, the LE‐DDGS digestibility coefficients were determined in Pacific white shrimp for dry matter (ADMD), energy (AED), and crude protein (APD) using 1% chromic oxide as the inert marker with 70:30 replacement strategies. The ADMD, AED, and APD coefficient values for LE‐DDGS were 53.77, 36.94, and 55.71 for digestibility trial 1 and 42.43, 44.65, and 20.87 for digestibility trial 2, respectively. Results from the digestibility data do not match the results of the growth trial, as poor digestibility would have resulted in more pronounced reduction in performance. Hence, this digestibility technique may not be appropriate for this type of ingredient. Based on the observed results the inclusion of LE‐DDGS up to 20% of the diet is recommended.

Using high protein distiller's dried grain product to replace corn protein concentrate and fishmeal in practical diets for the Pacific white shrimp Litopenaeus vannamei

“…The growth performance results demonstrated HPDDG to be a good protein source for practical shrimp feed formulations. Our results with HPDDG showed similar replacement levels to those demonstrated by Rhodes et al (), who assessed that up to 20% lipid‐extracted DDGS can be used in a practical shrimp diet containing 6% FM in green water. Furthermore, this study showed improved results compared to those reported by Qiu et al (), who demonstrated that 18% HPDDG can be used to replace a combination of SBM and FM in clear water.…”

“…The FCR ranged from 1.40 to 1.56, which is consistent with Rhodes et al (2015) who reported that the FCR ranged from 1.5 to 1.8 for shrimp fed graded levels of lipid-extracted DDGS in clear water conditions. It is lower than that reported in Qiu et al (2017), who demonstrated that the FCR ranged from 1.64 to 2.14 for shrimp fed with the same product (HPDDG) in clear water.…”

“…The composition of DDGS varies with processing, batches, and producers. Many studies have demonstrated that DDGS can be successfully used as a protein source in aquafeed for a variety of species (Gause & Trushenski, ; Blake Stewart Hauptman, ; Blake S Hauptman et al, ), including the Pacific white shrimp (Adedeji et al, ; Qiu et al, ; Rhodes et al, ; Roy et al, ; Sookying & Davis, ). The HPDDG product used in this study is developed to have a higher protein concentration (>49%) with reduced fat (3%) and fiber (5.5%) compared to conventional DDGS, which contains about 28–32% crude protein and 10% lipid (Gatlin III et al, ).…”

“…The shrimp fed Diet 7 have a significantly lower biomass compared to those fed Diet 8. (Adedeji et al, 2017;Qiu et al, 2017;Rhodes et al, 2015;Roy et al, 2009;Sookying & Davis, 2011). The HPDDG product used in this study is developed to have a higher protein concentration (>49%) with reduced fat (3%) and fiber (5.5%) compared to conventional DDGS, which contains about 28-32% crude protein and 10% lipid (Gatlin III et al, 2007).…”

“…DDGS has been widely used to replace FM or SBM in diets of several fish and shrimp species, including tilapia Oreochromis spp. (Chatvijitkul, Davis, & Lim, 2016;Lim et al, 2007), channel catfish Ictalurus punctatus (Li, Robinson, Oberle, & Lucas, 2010;Lim, Yildirim-Aksoy, & Klesius, 2009;Robinson & Li, 2008), red claw crayfish Cherax quadricarinatus (Garza de Yta, Davis, Rouse, Ghanawi, & Saoud, 2012), and the Pacific white shrimp Litopenaeus vannamei (Qiu, Tian, & Davis, 2017;Rhodes, Yu, Zhou, & Allen Davis, 2015;Roy et al, 2009;Sookying & Davis, 2011). Considerable research has demonstrated that the replacement of FM or SBM with 10-40% DDGS in shrimp diets can achieve acceptable growth, survival, and feed utilization (Adedeji et al, 2017;Rhodes et al, 2015;Roy et al, 2009).…”