The present disclosure provides a feeder port with a tubular body. In some embodiments, the feeder port may include an internal cavity that extends through the tubular body. In some aspects, the feeder port may include an entry portion and an exit portion opposite to the entry portion. In some aspects, the feeder port may include external threading configured to receive a bushing that may secure the feeder port within the trough. In some implementations, the feeder port may include a waterproof seal.

The invention provides a light generating system (1000), wherein the light generating system (1000) is configured to generate system light (1001) having a controllable spectral power distribution and intensity, wherein in an operational mode the light generating system (1000) is configured to generate during a first time period P.sub.1, a first spectral power distribution E.sub.1, and during a second time period P.sub.2, later in time than the first period P.sub.1, a second spectral power distribution E.sub.2, wherein: (A) the controllable spectral power distribution comprises (a) a first spectral range .sub.1 having one or more wavelengths in the blue, and having a primary first spectral power SP(P.sub.1, .sub.1) during the first time period P.sub.1 and a secondary first spectral power SP(P.sub.2, .sub.1) during the second time period P.sub.2, (b) a second spectral range .sub.2 having one or more wavelengths in the green, and having a primary second spectral power SP(P.sub.1, .sub.2) during the first time period P.sub.1 and a secondary second spectral power SP(P.sub.2, .sub.2) during the second time period P.sub.2, and (c) an amber-red spectral range .sub.34 having one or more wavelengths in the amber-red, and having a primary amber-red spectral power SP(P.sub.1, .sub.34) during the first time period P.sub.1 and a secondary amber-red spectral power SP(P.sub.2, .sub.34) during the second time period P.sub.2; (B) the first spectral power distribution E.sub.1 comprises the primary first spectral power SP(P.sub.1, .sub.1), the primary second spectral power SP(P.sub.1, .sub.2), and the primary amber-red spectral power SP(P.sub.1, .sub.34); the second spectral power distribution E.sub.2 comprises the secondary first spectral power SP(P.sub.2, .sub.1), the secondary second spectral power SP(P.sub.2, .sub.2), and the secondary amber-red spectral power SP(P.sub.2, .sub.34); (C) the first period P.sub.1 is selected from of at least part of a day; the second period P.sub.2 is selected from the range of at least part of a day; (D) SP(P.sub.1, .sub.1)>0 Watt, SP(P.sub.1, .sub.2)>0 Watt, and SP(P.sub.1, .sub.34)>0 Watt; SP(P.sub.2, .sub.1>0 Watt, and SP(P.sub.2, .sub.2)>0 Watt; SP(P.sub.2, .sub.2)/SP(P.sub.2, .sub.1)<SP(P.sub.1, .sub.2)/SP(P.sub.1, .sub.1); SP(P.sub.2, .sub.34)/SP(P.sub.2, .sub.1)<SP(P.sub.1, .sub.34)/SP(P.sub.1, .sub.1); and SP(P.sub.2, .sub.34)/SP(P.sub.2, .sub.2)<SP(P.sub.1, .sub.34)/SP(P.sub.1, .sub.2).

An apparatus for delivering digestible products to hatchling fowl includes a controller and a metered delivery mechanism, the metered delivery mechanism electrically coupled to the controller and configured to deliver a pre-defined quantity of digestible products to the container. The digestible product includes an edible and digestible semisolid material.