vets 1025 > pigs > Flashcards

pigs Flashcards

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1
Q

juvenile pigs

A
  • sucker or piglets
  • weaner
  • grower
  • finisher
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2
Q

sucker or piglet

A

pig between birth and weaning

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3
Q

weaner

A

pig that has been weaned up to around 30kg (around 8 weeks of age)

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4
Q

grower or porker

A

20- 60 kg

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5
Q

sale/ market porker

A

sold at 9-16 weeks 70kg

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6
Q

finisher

A

about 50-100kg

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7
Q

sale/ market baconer

A

sold at 17-24 weeks 100+kg

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8
Q

mature pigs

A
  • boar
  • barrow
  • sow
  • gilt
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9
Q

boar

A

entire male over 9 months

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10
Q

barrow

A

castrated male

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11
Q

sow

A

adult female which has had one or more litters

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12
Q

gilt

A

female that has not yet given birth

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13
Q

herd size

A

number of sows in a herd

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14
Q

giving birth is called

A

farrowing

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15
Q

farrowing rate

A

number of sows mates that actually farrow

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16
Q

weaning

A

permanent separation of sow and suckers

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17
Q

2 domestication events recorded (but up to 6 possible)

A
  • near east 9000 years before present
  • far east (china) around 5000-7000 years before present
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18
Q

in 18th/19th centures

A

asian bigs hybridized with european pigs

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19
Q

our domestic pigs originated from

A

eurasian wild boar (sus scrofa)

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20
Q

what family are pigs in, how many species

A

suidae
16 species

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21
Q

wild boar

A
  • wild pigs, not in aus
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22
Q

feral pig

A

domestic animals that have reverted back to wild pop
in australia

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23
Q

pigs are highly

A

adaptable; able to thrive in large range of environments

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24
Q

large white

A
  • most common in aus
  • large framed, long middle and light shoulders
  • erect ears
  • pink skin
  • perform well in intensive farming
  • quick growth rate, deep sides for bacon
  • excellent dow
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25
landrace
- second most pop in aus - developed for bacon market - drooped ears cover most of face - white/pink - long middle, light forequarters, excellent hams and good for pork production - improved carcass quality - more fat than large white - early maturing, smaller litters, good mothering
26
duroc
- red/brown - droopy ears - used in cross breeding - good sows, produce large litters - late maturing - heavy carcass, fast growth, good feed efficiency - often used as third breed mated to white cross sow
27
berkshire
- oldest registered breed - black with varying amounts of white (more on leg) - good quality meat - erect ears and more dished face, shorter necks
28
hampshire
- one of oldest breeds in usa - black in colour w white belt totally circling body, including both front legs and feet (wearing a longsleeve) - erect ears
29
welsh
- can be yellow-white but possible to be spotted black and white - floppy ears
29
wessex saddle back
- black and white, similar marking as hampshire but more white (also wearing longsleeve) - more of a combo of 2 breeds from essex and wessex
30
large black
- large black w floppy ears - not common
31
tamworth
- red like duroc but more adapted to extensive systems
32
pet breeds/ minis
- combo of breeds - it is illegal to keep feral pigs
33
F1
F1 gilts are first cross daughters of pure bred parents, 100% hybrid vigour
34
F1 attributes include
litter size, milk production, growth rate and lower backfat
35
terminal sire line (TSL)
boars are selected for growth and carcass attributes, not litter size usually crossbred beeds
36
F1 X TSL will give
F2 slaughter pig F2= second cross slaughter= because TSL
37
desired selection characteristics (sow)
- high preg rates - large litter size - high milk production - mature early - short rebreeding interval (weaning to service interval of 5-6 days)
38
desired selection characteristics (boar)
- average daily gain - carcass quality - feed conversion efficiency
39
pig sale price relates to
hot carcass weight and fat depth at F2
40
producers; trending more to
larger vertically integrated corporates location depending on resources and markets
41
challenges for aus industry
- low pig meat prices - high feed grain prices (drought) - water availability - environmental constraints - access to skilled stock people - AW requirements
42
pork is
2nd most consumed meat in aus and most consumed meat globally
43
queensland animal care and protection act places
a legal duty of care on people in charge of animals administered by biosecurity qld: PIC (property id code) number
44
model code of practice (MCOP)
- defines aw standards - parts of the adopted pig code and compulsory under animal care and protection act - documents stock-person competencies, food, water accommodation, husbandry, transport euth and QA info
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industry requirements
australian pork limited APL; accreditation programs
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stock attendants must be able to recognize
signs of ill health, including behavioural anomalies in pigs and mist take appropriate action when any such signs are observed in pigs under their care if person is not able to identify causes of ill health and correct them the must seek advice
46
stock attendants must
be personnel who are skilled in pig husbandry and competent to maintain the health are welfare of the animals in accordance with the standards listen in MCOP (the code) or are under direct supervision of such personnel pigs inspected at least once each day by competent stock person
47
sick weak or injured pigs must be
treated and if necessary isolated
48
dead pigs must be
removed as soon as practical
49
pigs with incurable sickness, injury of painful deformity must
be humanely euthanized animals that cannot move must be euthanized on location
50
preventative health program
herd health program vaccines and others must be administered by competent person or under direct supervision
51
there are codes and guidelines that provide detailed requirements that must be followed to ensure
appropriate standards are upheld
52
herd health is often
vertically integrated
53
3 main categories of production systems
indoor, deep litter, outdoor
54
majority of aus pigs are housed
indoors
55
environmental requirements change as
the pigs mature
56
animals flow in one direction for
biosecurity
57
housing needs
- shelter - freedom for necessary movement; stand, stretch and lie down - readily accessible, appropriate and sufficient food and water - variation in feeding systems and feed - allow for handling - display appropriate behaviour - visual and social contact w other pigs
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housing must provide appropriate environment for the
class of stock
59
air quality and ventilation
- harmful hases; ammonia co2, co, H2S - humidity at 60-85% - air movement; avoid droughts near piglets
60
temperature is
very important!!! specific for different classes of stock
61
dry sow stalls; laws
prevents bullying and limited mobility in DSS for no longer than 6 weeks of 1/2 of pregnancy
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when are sows in stalls
5 days after mating and one week before farrowing
63
all piglets must be checked within ____ of birth
24 hours; check they are feeding, have received colostrum
64
is a sow dies prior to weaning or piglets have inadequate nutrition
the piglets must be fostered, weaned, hand reared or euthanized
65
ideal temp for newborn piglets, suckers and sows
- piglets 27-35 - suckers; 24-30 - sows; 18-22
66
outdoor farrowing
- allows expression of nest building - less confined - more piglets crushed - fewer stillbirths
67
indoor DMA
- designated mating area - when sow in weaned, moved to DMA - boars housed in this area - access too mating pens
68
indoor weaner shed group housing temp, how are they split
- first time weaners mixed into new groups; stressful - big change in feed; GIT issues - temp 20-30 degrees - split by sex and size
69
indoor grower finisher shed
- wider range of environment that can be tolerated - same groups as possible - slatted flooring
70
gilt shed
- females in group housing - solid and slatted flooring - can see other pigs - moved into this shed in prep for mating - normally cycling 10-30 days after exposure to boar - boars housed here too but not mixed, and not in groups due to aggression
71
deep litter bedding
- ecoshelter w barley straw bedding - can also use rice hulls, saw dust - housing for weaners to finishers
72
pigs kept outdoors have
same requirements to indoors
73
pig must NOT be raised on land that is
contaminated w toxins, chemical residues, toxic plants or disease causing organisms
74
optimum temps
- newborns; 27-35 - suckers; 24-30 - weaners; 20-30 - others; 15-25
75
are pigs predator or prey
both
76
wild/feral vs domestic in extensive
quantitative differences
77
pigs are a ____ animal
herd; so housing should ensure they are not isolated
78
wild/ feral pigs run in ___ herds
sow; usually 2-4 sows; often genetically related; collegial approach
79
pig cognitive function
- very trainable - outperform 3 year old humans
80
vocalisation
important part of communication; feeding, distress, sexual behaviour, mothering
81
smell
very developed
82
eyesight
have colour vision, 310 degree panoramic and 35-50 binocular
83
males and females in the wild
- sow herd vs bachelor herds - separate
84
2 social orders in pigs
teat order (nursing and litter mates) dominance hierarchy (fight to establish dominance); mostly established within 24 hours
85
dominance
- not correlated with sex or weight - social rank influences growth rate - best to keep in one group - increased stocking density can adversely affect hierarchy stability - intensity relates to how important resource is; food/water, mating, environment
86
ideal group size for class of pigs
- weaners; 12 - growers; 15 - finishers; 20 - sows; 10 - sows on straw w electronic feeding; 20-60 (more access to resources)
87
tail and ear biting are not
aggressive behaviours
88
nest building how long
6-24 hours before parturition away from group same nest can be used for long period; communal nest, dependent on resources
89
indications of approaching farrowing
- increased activity in nest - up and down/ tail twitching - swollen vulva 4 days before - udder enlarges; springing - 30 mins before resp rate increases - 8 hours before milk spurts (letdown) - pelvis drops
90
farrowing (2-3 hours)
- start; nest is finished, activity reduces - lateral recumbent - semi-comatose states - delivery time between piglets 15-30 mins - no acknowledgement of piglets during farrowing (no cleaning, licking) - placental expulsion normally at the end - in wild may eat placenta and dead piglets
91
piglet crushes
- almost all in first week, most in first 3 days and 50% in first 24 hours
92
commercial conditions w no confinement what percent of crushes
10-25%
93
colostrum constantly available for
2-3 hours after birth rapidly decreases at 14 hours and fully milk by 34 hours
94
how often to newborns feed
every 30 mins for the first 24 hours and then hourly
95
who initiates nursing
- can be either sow or piglets but more often piglets
96
teat hierarchy established during first
2-3 days
97
how many phases of nursing and how long
6 phases; 100-120 seconds not every nursing is successful!!
98
phase 1 of nursing
- 20-60 seconds - piglets: locate udder, get to their teat (vocalizing, fighting) start butting - sow; moves to expose teats; 1 grunt per second
99
phase 2 of nursing
- 30-40 seconds - piglets; start of suckling, jostling ends - sows; laterally recumbent, 1 grunt per second, no letdown
100
phase 3 of nursing
- 20 seconds - piglets; sucking; 1 suck per second, slow - sows; grunting rate peaks! 2 grunts per second, no letdown/ v limited letdown
101
phase 4 nursing
- 10-20 seconds - piglets; suck fats; 3 sucks/ seconds, 40-80 mls of milk - sow; grunts back to 1 per second, max milk flow
102
phase 5 and 6 nursing
phase 5 - piglets; loud sucking - sow; grunting stops phase 6 - piglets; sucking ends, can restart stimulating udder if hungry - sows; milk flow ends
103
in the 6 phases of nursing when is max grunting and when does milk actually flow
- phase 3; max grunting from sow - phase 4; milk letdown
104
in wild describe estrus
seasonal anoestrus; related to day length - in summer and early autumn
105
courtship (before smash)
- 1-5 mins - vocalization; jaw chomping and frothing at mouth for males - both nudging - boar more active - sow activity depends on timing; - sow on heat standing, urinating, ears pricking - sow not on heat aggression, running
106
courtship is important as it relates to
litter size
107
copulation
- 2-10 mins - only if sow is in standing heat - locking of spiral glands into cervix and ejaculation - wild; mate 3-4 x daily - domestic; 2 matings
108
sow heat behaviours can change depending on
- stage of heat - differences between stock-persons - differences between boars - heat is best detected by boar
109
play
- first seen at 2 days old - peaks 2-6 weeks old - head movements - spinning around - play fighting - toys - vocalization
110
what is important/ rewarding activity to pig in terms of feeding
investigating their environment; stems from foraging
111
in wild pigs what percent of day is rooting/ exploring/ feeding
80%
112
in extensive domestic what percent of day is rooting/ exploring/ feeding
half of wild, ie 40%
113
in intensive pigs what percent of day is rooting/ exploring/ feeding
10-20% (in wild its 80%)
114
abnormal behaviours
- tail and ear biting/ sucking - canibalism - abnormal dunging - belly nosing - prepuce sucking - stereotypes - snout rubbing
115
factors for tail biting
- genetics - insufficient stimulation - stocking density - environment - access to water - feed
116
prevention of tail biting
- environmental enrichment - reduce stressors - tail docking last resort; before 7 days of age
117
3 forms of feed available
mash crumble pellet
118
water
- available at all times - automatic systems checked daily - stockperson takes action if bullying is restricting access to water
119
diet composition and type changes
with class of stock
120
crumble vs pellet
- crumble; creep, weaner - pellets; porker, grower, finisher
121
crude protein requirements
- weaner; 20% - grower; 18% - finisher; 16 % - dry sow; 12.5% - lac sow; 16%
122
farrowing shed for late preg sow
- moved a week before farrowing - lac sow diet - just before farrowing see a reduced feed intake - requires slow start back on feed after farrowing, increasing volume over first 7 days - will be eating around 5kg/day - sows will drop in bcs due to lactation; 3 to a 2.5 is normal
123
growth rate is measured as
average daily gain in grams per day
124
feed intake measured as
kg/ day
125
feed conversion efficiency/ rate (FCE or FCR)
how much feed required to produce 1 kg of lean meat
126
are younger or older pig more efficient feed converters
young
127
ADG formula
weight over time convert to grams per day
128
FCE formula
average feed consumed over average pig weight = ___ kg of feed to 1 kg of weight
129
ideal BCS for preg sows up to weaning
- mid to late gestation 3 - by weaning 2.5
130
swill feeding
- feeding of food scraps containing meat or imported dairy products - illegal in aus - risk of introducing exotic disease
131
target KPI for litter size
- sow: 12 alive - gilt; 11 alive total 13/ litter
132
KPI piglet mortality
no more than 8%
133
KPI sillborn and mummified piglets
no more than 8%
134
gestation length
114 days (less than 4 months)
135
lactation length
28 days
136
weaning to estrus
6 days
137
gestation length (114 days) + lactation length (28 days) + weaning to estrus (6) days = 148 days means potenital for
2.4 litters/ sow/ year (actual is 2.2) 27 piglets/ sow/ year (actual is 24)
138
estrus cycle length
21 days estrus period 2-3 days
139
estrus detection
back pressure test or boar test
140
mating management
- good heat detection - mate twice 24 hours apart - use mature boars older than 10 months - supervise - 3 min ejaculation - facilities and experienced operators important
141
preg detection
- best is estrus detection 18-24 days post mating - doppler US reliable 28 days - real time US best at 21+ days
142
litter marking
- tail docking - clipping of needle teeth - ID - other
143
litter marking; tail docking
- avoided if possible - removal of 1/2 to 1/3 of tail - where tail biting a problem - before 7 days old
144
litter marking; teeth clipping
- removal of needle teeth - tips of the 8 needle teeth - before 3 days old - only done if aggression and injury is occurring to littermates or to sows udder - only tips, no more than quarter of tooth
145
litter marking; ID
tattooed, tagged, notched or punched ear body tattooed or microchipped ear notching should be avoided, and if it is happening before 7 days old
146
castration
- surgical - after 2 days but before 7 days - if older than 21 days must be performed by vet under anaesthesia - alternative is immuno-castration using vaccine called improvac
147
why is weaning stressful
- diet change; scours - pig movement and mixing
148
vaccines
- parvo - 3 in 1: lepto, erysipelas, e. coli
149
tusk trimming
- when injury to humans or animals is likely - embryotomy wire - restrained and or anaesthetized - analgesia NOT required; tusk lacks sensory nerves - do not remove entire tusk; destabilize jaw - should be severed cleanly above level of gums
150
nose ringing
- avoid, last resort to prevent adverse effects to environment (if rooting is messing up pasture)
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