A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

PAR
Progressive atrophic rhinitis.
Parity
The number of litters a female has farrowed.
Parity 0
A sow that has been bred, but has not yet farrowed.
Partial Depopulation
Depopulating one area of the barn or phase of production.
Parturition
Giving birth; called farrowing or pigging in swine.
Pasture system
A pork production system in which pigs are housed in large paddock containing grass or legume forages. Housing is usually limited to primitive, portable, open front buildings that are manually ventilated and bedded with straw, corn stalks or other materials as needed.
Pathogen
Any organism that causes disease.
PCR
Polymerase Chain Reaction.
PCV - associated diseases
Virus and disease complex suspected to cause PMWS (post-weaning multisystemic wasting syndrome).
Pedigree
A tabulation of names of ancestors, usually only those of the three closest generations.
Pen mating
When a boar is placed in a pen with a group of sows to allow for breeding.
Per capita consumption
Total consumption of a good divided by total U.S. population. Can be measured on a carcass weight, retail weight or a boneless equivalent basis.
Performance data
The record of the individual animal for reproduction, production, and carcass merit.
Performance testing
The systematic collection of comparative production information for use in decision making to improve efficiency and profitability of pork production.
Perineum
The area between the anus and the vulva.
Periople
A gelatinous protective covering on the hoof. Its purpose is to protect the uterus from kicking by the piglets. As soon as the piglet begins to walk the periople falls off the hoof.
PH
The hydrogen ion concentration of a solution. PH is commonly used as a measure of the acidity or alkalinity of a solution. A pH of 7 is neutral, pH measures above 7 are alkaline, while those below 7 are acid.
Phase-contrast microscope
A microscope with a special lens that allows you to observe cellular components without special staining techniques.
Phenotype
The external appearance or a measurable characteristic of an individual.
Phenotypic correlation
The observed relationship between traits, caused by both genetic and environmental effects.
PIA
Porcine intestinal adenomatosis caused by Lawsonia intracellularis.
Picnic
A wholesale cut of pork comprised of the lower portion of the shoulder and front leg.
Pig
Term usually applied to young, immature swine.
Pig Density
The number of square feet (meters) per pig.
Pig Flow
The movement of pigs through a barn or series of barns.
Piglet
A young pig of either sex.
Pigs born live/female
The number of pigs that are born alive/yr divided by the average sow inventory in the same period.
Pigs sold per sow per yr
The sales of stated type/yr divided by the average sow inventory.
Pigs sold/yr
The total number of pigs of a defined type sold/yr.
Pigs weaned per farrowing crate per yr
The number of pigs weaned/yr divided by the average number of farrowing crates during the same time period.
Pigs weaned per female per yr
The number of pigs weaned/yr divided by the average female inventory during the same time period.
Pigs weaned per sow per yr
The number of pigs weaned/yr divided by the average sow inventory during the same time period.
Pigs weaned per sow-place per yr
The number of pigs weaned/yr divided by the average sow capacity during the same time period.
Placenta
Tissue associated with the uterus during pregnancy and through which the fetuses are nourished.
Plasma
The fluid portion of blood.
PMWS
Postweaning multisystemic wasting syndrome results in emaciation and is caused by porcine circovirus II.
Pork
The meat of pigs.
Porker
Any young hog.
Positive pressure
The air pressure within the building is slightly higher than outside, causing air to be forced out of the building.
Post-weaning death loss percentage
The post-weaning death loss multiplied by 100 and divided by the number of pigs weaned in the same group.
Post-weaning loss
Pigs that die between weaning and slaughter, expressed as a percentage of the number of at-risk pigs.
Pounds of lean pork per day of age
A measure of cutability and growth combined, it is calculated from predicted carcass lean divided by age in days.
PPV
Porcine parvovirus.
PQA
Pork Quality Assurance Program. Program designed to enhance the wholesomeness of pork by identifying the best management and treatment options for the herd.
PRCV
Porcine respiratory corona virus.
Pregnancy
The condition of a female animal having a living fetus in the uterus; occurs after the ovum has been fertilized by the male sperm cell. See: Gestation Period.
Pregnancy rate, 40-d
The number of sows that become pregnant within 40 d of service divided by the number of sows serviced in the same time period.
Premature farrowing
The birth of fetuses before the 110th day of pregnancy and survive for more than 24 hr.
Preweaning death loss percentage
The number of preweaning death losses multiplied by 100 and divided by the number of live born pigs in the same group.
Preweaning loss
A pig that is born alive but dies before weaning.
Primary SPF
Herd derived from caesarean section that is free of specific pathogens.
Production
The number of pounds of a specific meat produced. Determined by the number of animals slaughtered and the average weight of the animals.
Profitability
A criterion for measuring the relationship between income and expenses for different investments, operations, or firms.
Progeny testing
Determining the breeding value of an animal by studying its progeny.
Prostaglandin-F2alpha
A fatty acid hormone that is produced by the uterus and contributes to the regression of the corpus luteum.
Proximate analysis
A combination of analytical procedures used to quantify the protein, lipid, dry matter , ash and carbohydrate content.
PRRS
Porcine reproductive and respiratory syndrome.
PRRSV
Porcine reproductive and respiratory syndrome virus.
PRV
Pseudorabies virus, also called Aujeszky´s disease.
PSE
Pale soft exudative muscle, associated with the PSS gene.
PSS
Porcine stress syndrome.
Purebred
Designating an animal belonging to one of the recognized breeds of livestock. Such animals are registered or eligible for registry in the official herdbook of the breed. Purebred, registered, and pedigree stock are often used interchangeably, and the term "thoroughbred" is often improperly used for "purebred".
PWM
Preweaning mortality.