Section 573.780 - Polyethylene(a)Identity. Polyethylene consists of basic polymers manufactured by the catalytic polymerization of ethylene.(b)Specifications.(1) For the purposes of this section, polyethylene shall meet the specifications in item 2.1 of § 177.1520(c) of this chapter.(2) The polyethylene is designed in a pellet form in a configuration presenting maximum angular surface having the following dimensions in centimeters:0.9 ±0.1 * 0.8 ±0.1 * 1.2 ±0.1
(c)Use. It is used as a replacement for roughage in feedlot rations for finishing slaughter cattle.(d)Labeling. The labels and labeling shall bear in addition to the other information required by the Act:(1) The name of the additive "polyethylene roughage replacement."(2) Adequate directions for use which shall provide for the administration of one-half pound of polyethylene pellets per head per day for 6 successive days. All natural roughage should be removed for a minimum of 12 hours prior to administration of polyethylene roughage replacement. Roughage replacement must be adequately mixed in the ration for uniform distribution.41 FR 38652, Sept. 10, 1976, as amended at 54 FR 18282, Apr. 28, 1989