FEMALE P2

Question 1

Several studies have demonstrated the embryonic mor .. tality in swine is __ to _-%, and that more than two..thirds of the reproductive wastage in the pig occurs between _ and _ days of gestation

Answer 1

20 to 30
8 and 18

Question 2

if all embryos are lost by day 4 of gestation, the sow will?

Answer 2

returns to estrus after a normal cycle length,

Question 3

if one to four embryos survive beyond day 4 in swine gestation, the pregnancy will?

Answer 3

still terminate but the next estrous period is delayed by 6 days.

Question 4

how many embryos should survive for pregnancy to occur in sows?

Answer 4

4 - present in both horns

Question 5

1 embryo is sufficient to continue the pregnancy at day 12

Answer 5

t

Question 6

Accelerated ordelayed transport of the egg, as a result of estrogen..progesterone imbalance, leads to

a. postimplantation death
b. preimplantation death
c. embryonic mortality
d. fetal mortality

Answer 6

b

Question 7

embryonic mortality in cattle is caused by a progesterone deficiency during the luteal phase of the cycle;

Answer 7

f. NOT caused

Question 8

A higher incidence of embryonic mortality is observed in gilts and in sows after the __ gestation.

Answer 8

5th

Question 9

The incidence of repeat breeding is higher in ___ using artificial insemination rather than natural service

Answer 9

dairy herds

Question 10

abortion is recognized after how many days in cattle?

Answer 10

260

Question 11

abortion is recognized after how many days in horses?

Answer 11

290

Question 12

abortion is recognized after how many days in swine?

Answer 12

110

Question 13

this type of abortion is more prevalent in cattle, particularly dairy cattle,

Answer 13

noninfectious abortions

Question 14

Mares seem to be endocrinologically susceptible to abortion between the __ and __ months of pregnancy.

Answer 14

5th and 10th

Question 15

ingestion of Dicoumarin, alfatoxin, wood preservatives (creosote, penta… chlorophenols) is common in

Answer 15

sows

Question 16

fetal anomalies are more common in __ while lethal genetic effects are more common in __

Answer 16

mares
ewe does

Question 17

is the most common cause of abortion in mares

Answer 17

twinning

Question 18

type of abortion accounting for a major percentage of the pregnancy wastage in farm animals.

Answer 18

infectious abortion

Question 19

It is major cause of bovine abortion in many countries.

Answer 19

neospora caninum

Question 20

diseases acquired thru venereal transmission

Answer 20

trichomoniasis
vibriosis

Question 21

neosporosis cause abortions between __months

Answer 21

3-8

Question 22

known as foothill abortion

Answer 22

Epizootic bovine abortion

Question 23

causative agent of EBA

Answer 23

chlamydia psittaci - o. coriaceus tick

Question 24

Together, ___,___,___caused about 25% of all abortions and stillbirths.

Answer 24

Toxoplasma gondii, Campylo… bacter sp., and Chlamydia psittaci

Question 25

By far the most frequent cause of epizoot… ics of abortion in mares is the

Answer 25

equine herpesvirus I

Question 26

___(78) was an important cause of bacterial abortion.in mares, and that infection by a ____ (45) was an important cause of chronic placentitis (28).

Answer 26

Leptospirosis
Nocardioform actinomycete

Question 27

fetal mummification is common in what animals

Answer 27

swine and horse

Question 28

In cases of incomplete abortion, bacteria enter through a partially di… lated cervix to autolyze fetal soft tissues leaving fetal bones floating within the uterine lumen called

Answer 28

fetal maceration

Question 29

A high incidence of fetal mummification in the __ and __ breeds tends to support a hereditary in … fluence.

Answer 29

Jersey and Guernsey

Question 30

swine embryos that die in the first _ weeks of gestation are completely resorbed.

Answer 30

6

Question 31

refers to death of the offspring shortly before, during, or within the first 48 to 72 hours of life at normal term.

Answer 31

perinatal mortality

Question 32

accounts for most of the losses between birth and weaning

Answer 32

perinatal mortality

Question 33

factors affecting perinatal mortality

Answer 33

mismothering
asphyxia and trauma
congenital defects
environment

Question 34

Two types of stillbirth occur in swine

Answer 34

fetus die prepartum
fetus die during parturition

Question 35

is characterized by a failure of the fetal lungs to produce surfactant necessary to maintain the stability of the terminal air spaces of the lung after birth.

Answer 35

respi distress syndrome

Question 36

RDS in calves, as in the human infant, is caused by a deficiency of a surfactant (_____), and its diagnosis is based on levels in the amniotic fluid of two phospholipids- __ and ___

Answer 36

phospholipid
lecithin and sphingomyelin.

Question 37

is due to excessive stretching is common in multiple pregnancy in cattle and in large litters in swine.

Answer 37

Primary uterine inertia

Question 38

__ is due to exhaustion of the uterine muscle secondary to obstructive dystocia

Answer 38

secondary uterine inertia

Question 39

Failure of the cervix to dilate properly leads to “___” of the cervix in cattle.

Answer 39

spasm

Question 40

RFM be.. yond 12 hours in cattle is considered

Answer 40

pathologic