pen

(redirected from pent)
Also found in: Dictionary, Thesaurus, Legal, Financial, Acronyms, Encyclopedia, Wikipedia.

pen

Penicillin, see there.

pen

1. a small enclosure in which animals are restrained for handling or on a long term basis for intensive feeding. Called also corral.
2. female swan.

add-on pen
in a feedlot, one in which cattle are put together a few head at a time over several days or weeks. Has a risk for health problems.
pen check
the daily or twice daily examination of cattle in a feedlot to detect any sick animal. More frequent checks are made in the early period of a feeding program.
pen checker
the specially selected cowboys whose task it is to carry out intensive pen checks.
pen design
includes materials for floor and walls, floor drainage and warmth, disposal of feces and urine, sleep area versus feeding area, troughage and drinking facilities, space and number of occupants proposed.
pen-fed
fed in small, compatible groups in pens to optimize feed utilization.
holding pen
a pen, paddock or yard for holding a group of sheep or cattle temporarily, e.g. before slaughter, after shearing. A pen to which animals are added one by one until a group of sufficient size is accumulated.
pen lambing
the ewes are brought in from the pastures and those close to lambing are brought into pens where they can be kept under close observation to ensure carefree lambing and maximum lamb survival. The pens may be indoors or outside.
pen mating
cows on heat are cut out from the herd and put into the bullpen. Mating is observed and recorded. Provided heat detection is good the reproductive efficiency can be maximal.
pen space
space allocation per head of livestock proposed to be accommodated.
pen sweeps
wool swept up from pens, shearing board, races.
wash pen
a corral or pen with a solid floor and permanent sprinklers or other washing devices that jet upwards for cleaning cows collectively prior to milking. Usually associated with a holding pen.
References in periodicals archive ?
Corleto, "Fundamental slow crack growth properties using instrumented PENT testing," Proceedings of the 17th International Plastic Fuel Gas Pipe Symposium, Oct.
Table 1: SCG Tests on Butt-fusion Joint ("B") Materials of PE4710 Bimodal HDPE 10,000 Hours PENT ("10k") and 2,000 Hours PENT ("2k") Resins SIF, [K.
11 that the effect of temperature is contained in the exponential term and that PF, the ratio of lifetime to PENT, is proportional to the exponential term.
The critical notch depth depends on pipe geometry, pressure, residual stress, PENT value, and temperature.
The current 10% thickness rule used by industry for deciding when to discard a pipe is simplistic because the absolute value of the pipe thickness, the PENT value of the resin, and the temperature are the important factors.
OD (mm) Pipe thickness (mm) PENT (hr) Life time (mm) 60.
If the PENT value is not known for an old pipe line, remove a piece of pipe and compression mold it in accordance with ASTM F1473 and make a PENT test.
5 years for pipe failure per 1 hr of PENT instead of 13.
The current ASTM specification D2513 requires a min-imum PENT value of 100 hr.
It can be found by measuring the lifetime of the pipe with the specific defect at 80[degrees]C and comparing it with the lifetime of the same resin in the PENT test as was done by Lu and Brown [8].
The following inputs are required (1) the PENT value of the resin, (2) the stress intensity of the defect from which failure originates, and (3) the ground temperature.
For more information on Pent Energy, please contact Luke Pent at 817-332-4411 or 817-829-3478 mobile or lpent@sbcglobal.