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44 Cards in this Set

  • Front
  • Back

Theriogenology

Reproductive specialised branch

FSH

Stimulates follicles


Increases estrogen

LH

Completes follicle development


Completes follicle developmentAt peak = ovulation



Progesterone

Needed to maintain pregnancy

Polyestrous

Continuous cycle

Seasonally estrous

Seasonal variations

Diestrous

Twice a year

Monoestrous

Once a year

Estrous cycle

Proestrus


Estrus


Metestrus


Diestrus


Anestrus

Fertilisation occurs in the

Oviduct

Oocyte turns into an

Embryo

Where does the embryo go for implantation?

Through uterus.

What happens if the embryo is not implanted

CL shrinks

Estrous cycle for dogs

5-12 months

Canine estrous cycle

Proestrus


Estrus


Diestrus


Anestrus

Testing for what should be done

Brucellosis

Ways to artificially inseminate

Vaginal


Transcervical


Surgical

Canine placenta forms a

Band for attachment (zonary band)

Pregnancy diagnosis

Palpation


Hormone assay


Ultrasound


Radiography

Stage 2 pregnancy

60% anterior birthed


Usually 3-6 hours, can be 24hr

Dystocia

6-8 hours after trying with no progress



Active straining for more than 60minutes without fetus



More than 4 hours from beginning of stage 2 without delivery



Resting without straining for more than 4 hours between deliveries

Bitch has the longest

Uterine involution (shrinkage)

Postpartum problems

Metrics


Retained placenta


- Green discharge


Mastitis


Eclampsia (hypocalcemia)

Peusdopregnancy

Due to decrease progesterone and increased prolactin

Pyometra

Usually occurs during diestrus and is due to progesterone



PU/PD, febrile, discharge

Felines have induced

Ovulation by intercourse

Felines superfecundation

Two or more males getting her pregnant

Average little for felines

2-4

Female birthing may take

Up to 36hours

Signs of dystocia in felines

20 minutes no kitten


10 minutes with one born and no more


Fresh blood for more than 10 minutes


Depression

Breeding exam for a horse

Visual inspection


Rectal inspection


Vaginal speculum culture

Horse birthing

Very rapid



Within 10-20m

Red bag in horse

Emergency


Red membrane protrudes from vulva-


Premature placental separation



RUPTURE THE BAG AND DELIVER

Hormones used in pregnancy

Protesting- pregnany maintenence


Oxytocin - contractions

What is a "heat detector" for cows

A packet attached over tail, inner layer explodes to change colour when mounted

Cows in heat are

More restless and walk more

Breech pregnancy in a cow

Only tail is presented


Or hind legs first

Estrogen

Drops at time of ovulation



Signal males

Corpus luteum

Develop after ovulation and after rupture of follicle



Produces progesterone

Metestrus

Corpus luteum develops


Anestrus

After metestrus for a animals who are not polyestrus

Horse:



Amnion

Membrane immediately surrounding fetus

Horse:


Allantois and chorion

Form red coloured membrane that forms a placenta

A false pregnancy is called

Pseudocyesis