This document outlines the plan for the Northeast Integrated Barn Bio-Dome, a high-efficiency, closed-loop protein production system designed for year-round operation. This system combines aquaculture and poultry, integrating with the homestead’s broader energy, waste, and food systems.
Primary Goal: To produce fish and eggs, contributing to the homestead’s food self-sufficiency as detailed in the Food Production Plan.
Core Principle: This system operates on a closed-loop model, utilizing on-site hydroponic grains for feed, and sending its waste streams to the central anaerobic digester for processing.
Scale: 15 Egg-Laying Hens | 2,000 Gallon Tilapia Tank | 200 Fish Rotation
2. Infrastructure & Technical Stack
2.1. Water & Fish Management
Tank: 2,000-gallon insulated circular tank (12’ diameter x 4’ height). This size is sufficient to meet and exceed the annual fish production targets in the Food Production Plan.
Fish Species: Tilapia (Mozambique or Nile selected for heat tolerance and rapid growth).
Aeration: A venturi injector on the pump return line will provide efficient, passive aeration.
Filtration: A vortex settling filter will separate heavy solids, followed by a biological filter to process dissolved nutrients.
Automation: A Variable Speed Pump (VSP) will be modulated by Dissolved Oxygen (DO), Ammonia (NH_3), and Turbidity sensors to ensure optimal water quality and energy efficiency.
2.2. Chicken Management
Coop: A mesh-bottom coop platform will be situated directly over the fish tank, allowing chicken manure to fall directly into the water, providing a nutrient source for algae growth, which in turn feeds the Tilapia.
Lighting: LED supplemental lighting on a 14-hour cycle will be used to maintain egg production during the winter months.
Diet: The hens’ diet will consist of a 50/50 blend of hydroponic fodder (greens) and matured cull-grains (starch/energy) produced on-site, as part of the strategy to eliminate external feed costs.
2.3. Energy & Climate Control
Heating: A closed-loop PEX heat exchanger embedded in the tank’s foundation will be connected to the central Heating and Thermal Battery Plan to maintain optimal water temperature (76°F - 82°F) year-round.
Air Quality: An ERV (Energy Recovery Ventilator) will be sized for 6 air changes per hour to manage ammonia and dander. A dehumidifier will protect the building’s structural integrity.
Waste-to-Energy: Sludge from the vortex filter will be flushed weekly to the anaerobic digester, contributing to the homestead’s biogas production.