BSE

Question 1

characteristics for a successful breeding season

Answer 1

-large number of females pregnant in a short breeding season

Question 2

requirements of male in successful breeding operation

Answer 2

-the ability to detect females in heat
-physical capability to mount a female
-physical capability to deposit fertile semen into female tract

Question 3

what factor does a BSE not measure

Answer 3

male libido

Question 4

what is the most reliable measure of fertility

Answer 4

pregnancy rate

Question 5

how many days before the breeding season should a BSE be done

Answer 5

60 days

Question 6

components of BSE

Answer 6

-physical examination
-external and internal evaluation of the reproductive tract
-semen collection and evaluation

Question 7

faults in BSE

Answer 7

-does not guarantee fertility
-does not detect libido

Question 8

classifications of BSE

Answer 8

-satisfactory
-questionable
-unsatisfactory

Question 9

satisfactory BSE score

Answer 9

-male meets or exceeds all minimum standards for motility, morphology, and scrotal circumference

Question 10

questionable BSE score

Answer 10

male has the potential to pass but have failed due to some type of temporary illness, injury, or stressor

Question 11

unsatisfactory BSE score

Answer 11

male does not pass one or more sections of BSE and do not have the ability to recover reproductive capability

Question 12

factors influencing BSE

Answer 12

-age
-disease
-heat stress
-body condition
-breeding pressure
-collection procedure
-selection pressure(what % of sperm company wants motile)

Question 13

BSE physical examination measures

Answer 13

-health and body condition
-structural soundness
-eyes and teeth

Question 14

BSE external evaluation

Answer 14

-palpation of scrotum and testes
-examination of penis and sheath
-measure the scrotal circumference

Question 15

BSE internal examination

Answer 15

-palpation of accessory sex glands

Question 16

semen collection methods

Answer 16

-artificial vagina
-electroejaculation
-massage
-“gloved” hand method

Question 17

what does an artificial vagina mimic

Answer 17

-temperature
-pressure
-lubrication
-position

Question 18

what animal has the highest volume of sperm? the least

Answer 18

most: boar
least: ram

Question 19

what animal has the highest concentration of sperm? the least?

Answer 19

most: ram
least: boar

Question 20

how is the concentration of sperm measured

Answer 20

hemocytometer
densimeter
spectophotometer

Question 21

purpose of semen extension

Answer 21

-increase volume of ejaculate(increase # of potential breeding)
-preserve viability of sperm

Question 22

what is the ability of semen to be extended dependent on

Answer 22

-concentration
-quality(motility & morphology)
-fertility of sire

Question 23

components of semen extender

Answer 23

-source of nutrients
-pH stabilizer
-Cryoprotectant
-antibiotic

Question 24

what are used as sources of nutrients in semen extender

Answer 24

yolk
buttermilk
glucose

Question 25

what are used as antibiotics for semen extender

Answer 25

penicillin
streptomycin