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:
(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.