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Swine Medicine
VME 463A 2011
55
Veterinary Medicine
Professional
05/31/2011

Additional Veterinary Medicine Flashcards

 


 

Cards

Term
Swine life stages
Definition
suckling 0-3 wks
weanling/starter 3-8 weeks
grower 8-12 weeks
finisher 6<
Term
Swine Gestation Length
Definition
114 Days
Term
Swine, selection criteria for mating
Definition
rate of gain, conformation, # of nipples (must be able to feed at least 10 offspring)
Term
Swine: pregnancy conformation
Definition
ultrasound at 3-5 weeks
Term
Swine: advantages of AI
Definition
genetic improvement, decreased risk of STI's, synchronization
Term
swine: gestation crates
Cal Prop 2
Definition
pros: prevents fighting, economics
cons: limit normal behaviors, pressure sores, joint problems
Term
Swine: Farrowing Crates
Definition
-prevent crushing of piglets- #1 cause of death in sucklings
-keep piglets warm- suckling have low fat/glycogen stores and are prone to hypogycemia
Term
swine: average mortality before weaning
Definition
10%- mostly crushing
Term
piglet starter/creep feed
Definition
milk-solids based pellet ration used as in sucklings as weaning approaches
Term
Swine: nursery
Definition
-3 weeks
-Piglets are "mass weaned" => synchronizes sows
- fed starter/creep feed (dried whey) for first 1-2 weeks
-then fed corn/soybean meal
- average gain 0.75 lbs/day

- mortality at this age 2-2.5%
Term
swine: grower finisher operation
Definition
- pigs moved at 8 weeks
-grower 8-12 weeks
-finsher 12 weeks- 5.5/6 months (when they reach market weight)
-low mortality in these life stages
Term
target weight gain for production pigs
Definition
230 lbs in 175 days
Term
target weight gain for production pigs
Definition
230 lbs in 175 days
Term
Swine: all-in/all out programs
Definition
- estrus synchronization
all piglets weaned at 3-4 weeks
sows return to estrus 3 days later
breed on day 1 and 3 of estrus
-use PGF2a to induce 36 hours prior to farrowing => all farrow on the same day
-immunize 1 week prior to farrowing
-high level of biosecurity
Term
vax for sows/dams prior to farrowing
Definition
parvo, erysipelas,rotavirus, coronavirus and possibly TGE
Term
swine: farrow to finish/ "flow through system"
Definition
-all stages/sexes of pigs
-problem: DX TRANSMISSION
Term
swine: farrow to nursery
Definition
-sows and boars for breeding
-piglets from birth through nursery, then sold
Term
swine: grow/finish operation
Definition
-pigs from grower stage to market
Term
swine: feeder operation
Definition
takes piglets from nursery to finisher stage
Term
swine SPF
Definition
specific pathogen free
-high biosecurity
-shower-in, shower-out facility
-no importation of outside pigs
- to get SPF pigs- sows induces, cesarean performed, piglets raised in pathogen free environment
-SPF pigs will be very suceptable to pathogens in a non-SPF environment => should be vaccinated prior to exposure
Term
swine: Ractompamine (PayLean)
Definition
-increases growth rate and feed efficiency
-B adrenergic agonist
-supplemented 4-5 weeks before slaughter
-only approved for marker hogs
-can be abused by producers
Term
Swine: food safety issues
Definition
trichonella spiralis
E. Coli 01H57
Salmonella
Ascarids
Term
swine: guidelines for general disinfection
Definition
-physically clean away all organic material
-remove 4 in topsoil
-drain standing water
-remove gates, feeders, fencing ect and wash with water and detergent
-clean manure handling equipment
-apply disinfectant
-allow contact time
-dry and remain empty for at least 3 days
Term
Swine: disinfectants
Definition
alkaline formaldehyde for sporocytes
lye, amonia for cryptosporidia
Phenolys for TB and Johnes
Term
Swine: Adult Vital Signs
Definition
T-100.4-102.2
P-60-90
R-10-20
Term
swine: Piglet Vital Signs
Definition
T-102.2-104
P-100-120
R-24-36
Term
Swine: blood collection
Definition
jugular vein- for commercial pigs only
tail stick
jugular (sedated for PBP, awake commercial only)- on R side between first rib and manubrium
ear- esp in PBP while sedated- complication => risk of hematoma
Term
swine: mismating
Definition
PGF2a on days 12 and 14 will terminate the pregnancy
Term
swine: parturition
Definition
114 days
Cl dependent
can be induced with PG's
Term
swine: signs of impending farrowing
Definition
-within:
3-4 days => vulvar swelling/engorgement
24 hours => nesting behavior/milk let-down
Term
swine: farrowing
Definition
-both anterior and posterior presentation
-leave umbilicus attached, tie off with tape if necessary
-active labor less than 3hrs
Term
swine: dystocia
Definition
>120 days =. increased risk
bloody, malodorous discharge => BAD
if active labor >1hr palpate vagina (and then give ABX)
-mix lidocain with lube
-can use pig snare to grasp piglets
-remove blockage, wait 30 minute, give oxytocin (lots of lube)
-can give oxytocin ever 30 min for 6-8x
-if no progress ultrasound an cesarean
-alternitively can increase dose of oxytocin by .5cc every 30 minutes until 2 cc is reached
-passing of a large placental mass indicates piglets are out
Term
swine: risks of cesarean section
Definition
-retained placenta
-aggression towards piglets
-poor lactation
Term
swine: mastitis, metritis, algalectia syndrome
Definition
prevention: be clean during OB procedures
avoid constipation
limit feeding pre-farrowing
decrease feed post-farrowing then gradually increase of 7 days
TX:
abx, nsaids, PGF2a in case of retained CL, manual stimulation of repro track may release oxytocin and solve agalactia
Term
swine: savaging
Definition
sow attacking piglets
more common in gilts
due to stress
get sow drunk
Term
swine: piglet management
Definition
-keep warm-95-100/avoid drafts-fecal midline stains are a sign of chill/piling
-sow milk re placer for orphan/runt piglets
-day 1- place in warm box,split suckling to ensure each pig gets colostrum, feed smaller pigs first, cross-foster if needed
-day 2-5- check sows udder for lumps, check piglets are eating (full bellies), investigate reasons for underfeeding (runts, splay-legged, chillied, hypoglycemic)
-
Term
swine: sow management
Definition
allow to walk around several times a day if possible
Term
piglet processing
Definition
usually on day 2-3
clip needle teeth-decidous canines
dock tails- to prevent biting/infection
iron dextran shot-piglets are born Fe difficient- give IM in neck
ear notching- ID, R litter #, L individual #
castration-sx as testes are not pendulous
Term
swine: Step. suis infection
Definition
menengitis, septicemia, polyarthritis,polysrositis and bronchopneumonia of suckling and nursery pigs
-rare in growers/adults
-widespread, mutiple serotypes
-virulence factors
-hard to ID risk factors
-infection of piglets if often via a carriers sow
-clinical signs-
death
menengitis => neuro signs-NOT episodic
Term
swine: ETEC
Definition
-piglets <1wk in watery, yellow-white diarrhea
-on clin path see hemoconcentration, metabolic acidosis, lactic acidosis, hypoglycemia
-confim ddx with fecal pH (alkaline). slide agglutination test for pillus Ag, PCR, gram neg rods on SI with little or no inflamm of deep intestinal layers, IFA
-prevention: all-in/out, clean sows before farrowing, good biosecurity, vax sows (feedback vax using scours)
enteric collibacillosis
pilli for attachment
K88, 987P
ssuceptabilty gone by 1 wk age (can only attach to 1st generation enterocytes)- except K88 which can be found in nursery age pigs
-makes 2 toxins: heat stable and heat labile enterotoxins
-secretory diarrhea
Term
swine: rotavirus enteritis
Definition
-seen in piglets 1-3 weeks
-malabsorptive diarrhea- specifically binds villi
-clin path: yellow/white diarrhea,acidic fecal pH, air bubbles in feces, metabolic & lactic acidosis,hemoconcetration, hypoglycemia
-confirm with EM (but virus may be gone from feces within 24-48 hrs),IFA on SI, ELISA or PCR on feces
preventions: "feedback vax" sows 3-6 weeks prior to farrowing, hygiene, commercial vax but must match strain on farm
-non-enveloped virus
-can persist for wks to months in the enviroment
-reservoir: dirty farrowing areas
-ubiquitous but outbreaks are rare
Term
swine: TGE, coronavirus diarrhea
Definition
-vomiting pigs + acidic diarrhea => think TGE
-malabsorptive diarrhea
-enveloped => less durable in the environment than rota
-outbreaks more common in Fall/Winter
-TGE can occur at any age but most common in piglets 1-2 weeks
-carriers: imported pigs, starlings, flies, rodents, fomites
-specific damage to villus enterocytes
-acidic feces
-more clinically severe diarrhea, higher mortality than rota
-yellow/watery diarrhea, with TGE may have vomiting early on
-prevention- autogenous vax (piglet gI ice cubes fed to sows 2 weeks before farrowing)
Term
swine: coccidiosis
Definition
-isospora suis (most common/pathogenic), eimeria
-malabsoptive and inflammatory diarrhea
-sporulated oocysts from enviroment
-coccidoisis in pigs is an indicator that farm hygiene needs improvement
-can be mild-severe depending on # of oocyts ingested
-severe infection can cause a true protein losing enteropathy
-ddx: fecal float BUT diarrhea can occur befor oocysts are shed => need serial floatations
-tx: all off lable, amprolium, trimethoprim-sulfa, sulmet
-prevention: hygiene, work from young to old
Term
swine: clostridial enteritis
Definition
-clostridium type A:usually a non-pathogenic commensal
-clotridium type C- enteritis in piglets 1-5 days of age, fast onset- necrosis of gut mucosa, blood loss, toxemia, rapid onset of shock, death, hemorrhagic diarrhea
Term
swine: strongyloides ransomi
Definition
-subclinical in adults
-diarrhea in piglets- 10-14 days
-passed from sow to piglets via colostrum
-ddx: fecal on sow, or histo to show parasites in piglets GI
-prevention: ivermectin to sow before parturition
Term
swine: diarrhea
Definition
-secretory: E. Coli
-Malabsorptive: Rota, TGE, mild coccidoisis
-inflammatory: clotridial, severe coccidiosis
-other- strogyloides
Term
swine: vaccinate sows/gilts prior to parturition for:
Definition
E. Coli
C. perfringins
TGE
Rota
Term
swine: signs of anemia
Definition
-microcyic, hypochromic anemia
-"thumps"=> breathing sounds like a drum
-signs can also be due to Cu deficiency
-OD can cause acute hepatic necrosis
Term
swine: splay-leg in piglets
Definition
-hypoplasia of myofibrils in adductor muscles
-usually present from birth
-tx: help to suckle, tape-hobles, non-slip flooring
Term
swine: health risks for nursery stage pigs
Definition
-decreased colostral Ab's
-naive immune system
-no longer getting IgA in milk (less protestion of orapharynx and GI)
-co-mingling of multiple litters
Term
swine: nursery pig vax
Definition
-killed bacterine, 2x, 2-3 weeks apart, first can be given during gestation and booster at weaning
vax for:
erysipelas
B. bronchiseptica
P. multocida
Actinobacillus pleuropneumoniae
Term
swine: Erysipelas
Definition
-caused by erysipelothris rhusiopathiae (gram + rod)
-well demarcated skin lesions
-tx with penecillin
-septicemia (effects multi-organ)=> setic arthritis and vegetative valvular endocarditis
-clin signs: sudden death, high fever,
-
Term
swine: porcine circovirus disease
Definition
-nursery/grower-finisher age pigs
-PMSW= post weaning mutipsystemic wasting dx
-visible lymph node enlargement, ill thrift, failure to thrive, non-responsive to abx, group mortality of 15% plus
-enlarged kidneys with mutifocal hemorrhage
-lymphoid depletion associated PCV2 Ag or NA's in tissues
-prevention: vax reduces morbidity/mortality
-
Term
swine: porcine respiratory and reproductive syndrome (PRRS)
Definition
clin signs in a niave herd: late term abortion, anorexia, fever, coughing
-blue ear tips
-neurologic dx, lameness, polyarthritis and menegitis
-respiratory signs in adults in uncommon in endemic herds
-
Term
swine: pseudorabies
Definition
"mad-itch"
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