Preliminary obervations on use of ethanol distiller's by-products for polyculture of freshwater prawn (Macrobrachium rosenbergii) and golden shiner (Notemigonus crysoleucas)
Two major by-products of ethanol distillation, corn distiller's solubles and corn distiller's mash, were evaluated for their potential use as a food source for freshwater prawn (Macrobrachium rosenbergii) and golden shiner (Notemigonus crysoleucas) in mid-western United States. Corn distiller's solubles were not found to be highly toxic to aquatic organisms at concentrations ranging up to 10,000 ppM. However, the high biological oxygen demand of the material requires that single applications not exceed 2000 ppM. Yield trials were conducted over a four month period in five 0.1 ha earthen ponds, located in proximity to an ethanol distillery. Each pond was stocked with 2000 postlarval shrimp (0.02 g mean weight). Three of these ponds were also each stocked with 75 adult golden shiner (27.0 g mean weight). One application of corn distiller's solubles (equivalent to approx. 2000 ppM) and three applications of corn distiller's mash (approx. 5 kg/application) were made over the course of the yield trails (approx. 120 days). No other food or fertilizer was added to the ponds. Survival of shrimp ranged from 34 to 75%. Survival of brood fish exceeded 90%. Mean weight of shrimp at harvest was approximately 12 g, and average production was equivalent to approximately 104 kg ha/sup -1/. Golden shiner reared in the same ponds as shrimp had production rates equivalent to approxmately 130 kg ha/sup -1/. The presence of fish did not appear to impede shrimp production. Although production results of fish and shrimp were encouraging, several factors existed which impeded production; these included: (1) little by-product was applied to ponds because the distillery was undergoing its shakedown period; (2) ponds were new and had minimal natural productivity; (3) grass was not fully established on the watershed and ponds became turbid; and (4) lower than normal temperatures prevailed over much of the growing period. 11 references, 2 figures, 8 tables.
- Research Organization:
- Southern Illinois Univ., Carbondale (USA). Fisheries Research Lab.
- DOE Contract Number:
- FG02-81R510295
- OSTI ID:
- 6889590
- Report Number(s):
- CONF-830270-1; ON: DE84014850
- Resource Relation:
- Conference: 1. biennial conference on warmwater aquaculture-crustacea, Laie, HI, USA, 9 Feb 1983; Other Information: Portions are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
09 BIOMASS FUELS
60 APPLIED LIFE SCIENCES
AQUACULTURE
WASTE PRODUCT UTILIZATION
CRUSTACEANS
DISTILLATION
ETHANOL
EXPERIMENTAL DATA
FISHES
MAIZE
PONDS
PRODUCTIVITY
ALCOHOLS
ANIMALS
AQUATIC ORGANISMS
ARTHROPODS
CEREALS
DATA
GRAMINEAE
GRASS
HYDROXY COMPOUNDS
INFORMATION
INVERTEBRATES
NUMERICAL DATA
ORGANIC COMPOUNDS
PLANTS
SEPARATION PROCESSES
SURFACE WATERS
VERTEBRATES
320305* - Energy Conservation
Consumption
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090222 - Alcohol Fuels- Preparation from Wastes or Biomass- (1976-1989)
553000 - Agriculture & Food Technology