Algae for Conversion of Manure Nutrients to Animal Feed: Evaluation of advanced nutritional value, toxicity, and zoonotic pathogens 1 Shelton Murinda, 2 Marcia Murry, 3 Gregory Schwartz, 4 Trygve Lundquist, 5 A. Mark Ibekwe 1 Animal and Veterinary Sciences Department, California State Polytechnic University, Pomona, CA. 2 Biological Sciences Department, California State Polytechnic University, Pomona, CA. 3 BioResource and Agricultural Engineering Department, California Polytechnic State University, San Luis Obispo, CA. 4 Civil & Environmental Engineering Department, California Polytechnic State University, San Luis Obispo, CA. 5 USDA Agricultural Research Service, U. S. Salinity Laboratory, Riverside, CA.
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Algae For Conversion of Manure Nutrients to Animal Feed: Evaluation Of Advanced Nutritional Value, Toxicity, And Zoonotic Pathogens
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Algae for Conversion of Manure Nutrients to Animal Feed:
Evaluation of advanced nutritional value, toxicity, and zoonotic pathogens
1Animal and Veterinary Sciences Department, California State Polytechnic University, Pomona, CA.2Biological Sciences Department, California State Polytechnic University, Pomona, CA.
3BioResource and Agricultural Engineering Department, California Polytechnic State University, San Luis Obispo, CA.4Civil & Environmental Engineering Department, California Polytechnic State University, San Luis Obispo, CA.
5USDA Agricultural Research Service, U. S. Salinity Laboratory, Riverside, CA.
INTRODUCTION
Manure disposal is a major concern in concentrated feeding operations (CAFOs), e.g., dairy industry
Microalgae offer great potential for sustainable bioremediation of manure nutrients and wastewaters for production of biofuel, feedstock and bio-products (e.g., nutritional supplements).
GOALS OF PROJECT Collect field data to calibrate growth models for the culture of algae
Maximize the nutritional value of produced algae for animal feed
Optimize pathogen inactivation methods, and
Quantify and control any cyanobacterial (“blue-green algae”) toxins
OVERALL GOAL: Benefit agriculture and the environment by introducing microalgae, as a fast-growing safe, livestock feed crop.
LAGOON LAGOON
Shade Shade
Algae ponds/bio-reactors
(in red rectangle)
BIOREACTORS then
WEEKLY DAILYSecchi disk visibilityAfternoon oxygen and pHWater temperatureSolar radiation Pond colorDLE additionExchange