Quiz 3 Flashcards
If a sow is pregnant, what will you see on the ultrasound?
-black ovals close together
What does the lean-meater do?
-measures the amount of backfat an animal has.
How does the lean-meater work?
-It is an ultrasound
-3 dots on the left side determine layer
-measures fat in mm
What do you put on the probe of the lean-meater?
-lube
-motor oil
-cooking oil
Can an ultrasound pass through air or air bubbles?
-No
What is important about the probe and where is it placed?
-probe placement is important
-place probe behind last rib
What is it called when a sow gives birth?
-farrowing
What hormones are associated with pregnancy?
-progesterone
-prostaglandin
-estrone sulfate
When can you detect a pregnancy?
With an ultrasound?
-17-24 days after breeding
-28-80 days
What is the probe placed for an ultrasound for a pregnancy detection?
-on the flank between the last 2 nipples
What type of ultrasound machines are there?
-Doppler
-A-mode
-B-mode
How does an ultrasound work?
-soundwaves through the transducer
Lean-meater math
-1 inch = 2.54cm = 25.4mm
-10mm = 2/5 inch
- ?mm / 10mm = ? inches
What is the max amount of fat a pig can have?
-1 inch
How long is a gilt’s puberty?
-160-190 days
When are replacement gilts selected and what are they selected for?
-At 4-5 months of age
-structure
-underline and vulva
-size and fitness
-litter size and weight
Why would a sow be culled?
-reproduction failure
-age
-small litter
-fet and leg disorder
Magnet
-end in the reticulum
-help prevent hardware disease in cattle by collecting it and not letting it pass through the body
What is the 205 weaning weight and what is it adjusted on?
-computed on average daily gain from birth to weaning
-calf age
-calf sex
-dam age
What sex grows the slowest and fastest?
-Heifers grow the slowest
-bulls grow the fastest
-steers in the middle
Yearling weight
-weaning weight to now
-grow on their own
What is mouthing?
-looking at teeth to determine age of an animal
Lutalyse
-(IM), 5cc
-used for estrus synchronization
-infection of reproductive tract
-abortion (cause)
-prostaglandin F2 alpha
Where is the proper injection site on beef cattle?
-triangle area in the neck region
-never near the butt
Injection Rules
-use clean needles and syringes
-follow label of drug
-good restraint
-don’t use outdated products
Mouthing cattle
-0-1.5 years all baby teeth
-1.5-2 years 1 permeant set
-2.5-3 years 2 permeant sets
-3.5-4 years 3 permeant sets
-4-4.5 years 4 permeant sets
-10-12 years short and spread out
CIDR
-eazi-breed CIDR
-progesterone intravaginal insert
-synchronization of estrus
Pre breeding vaccines
-Vista 5 SQ
-L5 SQ
-protect against IBR abortion and BVD PL calves
-vaccinated to protect the fetus
Vista 5 SQ
-Bovine rhinotracheitis virus diarrhea-parainfluenza 3-respiratory syncytial virus vaccine
-modified live virus
L5 SQ
-Leptospira Canicola - Groppotyphosa-Hardjo-leterohaemorrhagiae-Pomona bacterin
BVD
-embryonic loss, abortion, birth defects, PI calves can infect the herd
IBR
can result in infertility problems and abortion
Weaning weight
-measure of mother’s ability
-standardized based in
sex of calf
age of calf
age of dam
-taken when calf is between 160-250 days old
When is a dam most productive?
-5-10 years
mature dam is 5-10 years old
Yearling weight
-take at 365 days
-long yearling weight 452 or 550 days
-separate for each sex
-160 days between weaning and final weight
Weaning ratio
-used to decide if an animal should be culled
Most Probable Producing Ability (MPPA)
-compare cows on number/quality of calves
-used for culling
Cow efficiency
-cow producing ability in the herd
-frame size
Body condition score in sheep
-1 is thin, 5 is fat, and 2-3 is good
-if breeding want btw 3-4
-cost effective nutrition
What are the most critical time to asses BCS?
-4-6 weeks pre-lambing
-one month prior to breeding
FAMACH Scoring
-Haemonchus contortus (worm)
-measure anemia or blood loss
named after Francois “Fafa” Malon
What are the advantages of FAMACH scoring?
-decrease treatment of whole herd, slows dewormer resistance, cheap, when animal examined might notice other medical problems.
FAMACH Scoring numbers
-1 is red and good
-5 is white and anemic
What is a sound mouth?
-When the top and bottom are level with each other
-Good mouth
What is a parrot mouth?
-When the top jaw is longer than the bottom jaw
- / looking
What is a long lower jaw?
-When the lower jaw is longer than the top jaw
- \ lokking
Mouthing on a sheep
-90 days = all baby teeth
-1/2 year = no perm / first coming in
-12 to 14 months = 1 set of perms
-2 years = 2 sets of perms
-3 years = 3 sets of perms
-4 years = 4 sets of perms
What happens to a sheep’s teeth when they get older?
-spread
-broken mouth
