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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 ?
PENT and SENT tests were conducted with the initial razor-sharpened crack inserted in the butt-fusion joint material.
Table 1 shows the butt-fusion joint SENT and PENT specimens tested to date from 10k and 2k PE4710 HDPE resins and their corresponding failure times.
Another limitation on the theory is caused by the difference in R between the PENT specimen and the manufactured structure whose lifetime is being predicted.
Note that the temperature factor is not involved because the PENT test and the pipe test were both done at 80[degrees]C.
The ultimate lifetime of the pipeline is determined by the PENT value of the resin and the stress intensity of the inherent defects within the pipe.
The PENT test was done on the very same resin from each of the pipes.
The 75/25 blend and PENT copolymer had the best barrier performance, which could be correlated also with the lowest shrinkage (greater structural stability).
85 241 copolymer (low naphthalate content) PENT M & G, Hipertuf 86017- 0.
In addition to steady existing production, this acquisition clearly gives Pent Energy a key acreage position in the state of Oklahoma.
Arnold Pent, vice president, and Jim McGowen, secretary and general counsel, round out Pent Energy's leadership team.
At the DEMOfall event, ConSentry Networks CEO Tom Barsi will provide the first-ever public demonstration of its newly announced Secure LAN Controller product family, which addresses the pent up demand to tightly control user access to authorized resources and contain malware outbreaks within internal networks -- the target of increasingly severe security breaches.
Although this will result in some quality investment grade opportunities, buyers will need to move quickly, because of pent up demand.