Swine 5

Question 1

What is Altrenogest (Matrix) FDA approved for its use in swine to do?

Answer 1

To synchronize the estrous cycle in sexually mature gilts that have had at least one estrous cycle

Question 2

The use of altrenogest will result in what?

Answer 2

Estrus 4-9 days after completion of the 14 day treatment period

Question 3

How is altrenogest administered?

Answer 3

As a top-dressing on a portion of gilt’s daily feed allowance

Question 4

What percentage of pigs, in a study, were bred within 9 days of altrenogest withdrawal?

Answer 4

90%

Question 5

What is oxytocin FDA approved for in swine?

Answer 5

Induction or enhancement of uterine contraction at parturition, treatment of postpartum retained placenta and metritis, uterine involution after manual correction of prolapsed uterus and treating agalactia

Question 6

What is the protocol for using oxytocin for uterine contractions?

Answer 6

10 units IM and then repeat no sooner than 30 minutes if necessary - do not use too much

Question 7

What can dexamethasone be used for off label?

Answer 7

an abortifacient

Question 8

What is Cloprostenol used for?

Answer 8

To induce luteolysis, expulsion of mummified fetus, luteal cysts, induced abortions after mismating, and to schedule estrus and ovulation for controlled breeding

Question 9

What is Dinoprost (Lutalyse) FDA approved for use as?

Answer 9

A luteolytic agent for estrous synchronization, unobserved (silent) estrous, pyometra, and an abortifacient

Question 10

What are the two primary products in swine for induction?

Answer 10

Lutalyse (Dinoprost) - label

Estrumate (Cloprostenol) - off label

Question 11

Generally, how quickly after injection of induction agents do swine begin to farrow?

Answer 11

24-36 hours

Question 12

What is the correlation between induction, stillborns, and pre-wean mortality?

Answer 12

Inducing you may reduce stillborns, but conversely increase % pre-wean mortality, if you induce too early

Question 13

What is PG600 used for?

Answer 13

The induction of fertile estrus in prepubertal (non-cycling) gilts or for induction of estrus in healthy weaned sows experiencing delayed return to estrus

Question 14

PG 600 is only for use in what age and weight of gilts?

Answer 14

Gilts over 5.5 months old and weighing at least 85 kgs

Question 15

What is HNS (heat no service)?

Answer 15

Observing an estrus cycle, but not breeding the female

Question 16

True or False: It is better to do aggressive heat checking and skip the first heat than to use PG-600 on gilts and force estrus

Answer 16

True

Question 17

PG600 can be use for P1 sows at weaning to do what?

Answer 17

to improve the number of sows that come back into estrus (shortly after weaning) and be bred but there is no improvement in farrowing rate

Basically you are shortening their wean - estrus interval

Question 18

How does PG600 affect lost pigs born alive?

Answer 18

1.2 pigs lost in born alive per litter when using PG600

Question 19

What is Improvest (gonadotropin releasing factor - diptheria toxoid conjugate) used for?

Answer 19

The temporary immunological castration

Question 20

What does Improvest do in boars?

Answer 20

Suppression of testicular function and reduction of boar taint in intact male pigs intended for slaughter

Question 21

What are the other benefits of Improvest?

Answer 21

Improvements in feed efficiency, improvements in average daily gain, livability improvement - $3-4 dollars per head more

Question 22

What is triptorelin acetate (OvuGel) used for?

Answer 22

The synchronization of time of insemination in weaned sows to facilitate a single fixed-time artifical insemination

Question 23

How quickly does ovulation occur after administering OvuGel?

Answer 23

It induces ovulation 40-48 hours post-application

Question 24

How is OvuGel administered?

Answer 24

Intra-vaginally approximately 96 hours after weaning

Question 25

What is OvuGel not approved for use in?

Answer 25

gilts