Patent ID: 7690330
Filing Date: 2010-04-06
Classification: A01K

Abstract:
1. An aquaculture raceway for aquatic animals having a longitudinal axis, an upstream end, a downstream end, and a bottom comprising: a semi-circular cross section having a smooth inner wall and a corrugated outer wall; a space between the inner wall and outer wall; a semi-circular cross-section waste removal section near the downstream end of the raceway and aligned with the raceway longitudinal axis; a screen separating the waste removal section and an upstream portion raceway; a perforated pipe positioned along the bottom of the raceway within the waste removal section such that the longitudinal axis of the pipe is parallel to the longitudinal axis of the raceway; and a valve connected to the perforated pipe such that when the valve is opened, waste accumulated within the waste removal section is forced by gravity into the perforated pipe and flows through the valve to exit the raceway.