SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
Dairy Cattle And Reproduction
Start Test
Study First
Subjects
:
industries
,
dairy
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Castration tool which clamps down on the vans deferens. causes the sperm to not reach the penis to be ejaculated
6-8 weeks
cow gestation
prostaglandin
burdizzo
2. Animals which have many estrous periods during certain periods per year (ex: mare - ewe)
seasonally polyestrous
testis (gonads)
stag
purpose of Breeding Soundness Exam (BSE) for males
3. Constitute 50-90% of the volume of the ejaculate. (3 glands total: seminal vesicles - prostate gland - cowper's gland)
Follical Stimulating in females
Parturition
Sperm growth rate
accessory sex glands
4. (switzerland) 2nd in size and milk production - most muscle -
Brown Swiss Cow
penis sizes vs delivering methods
~1 month
spermatogenesis
5. Organ of copulation - provides passageway for semen and urine - muscular organ characterized especially by its spongy - erectile tissue that fills with blood
Parturition
penis proper
Lutinizing Hormone in females
reasons for castration
6. Boars and stallions-> deliver semen directly into the cervix. bulls and rams-> deliver semen into the vagina.
femininity of a heifer
vulva
penis sizes vs delivering methods
reasons for castration
7. Largest dairy cow - largest udder - highly vascular - eat 40-50% dry matter (eat alot) - most total butterfat
seasonally polyestrous
Holstein Cow
Hormones from both the fetus and the mom.
mare's estrous cycle
8. 265-285 days
eminal vesicles
seminiferous tubules
Dairy Cattle Gestation
ewe's estrous cycle
9. Cycle that lasts weeks (ovulation->hormone cycles->ovulation)
pelvis
prostate gland
estrous
elastrator
10. Located directly in front of the cervix. fertilized egg implants here. connected to two uterine horns. implantation occurs on the same side as ovulation occurred.
monestrous
feeding a high producing dairy cow
4 major reasons for culling dairy cows
uterus
11. When are steers and heifers weaned from bottle feeding?
seminiferous tubules
Where livelihood is in agriculture
prostate gland
6-8 weeks
12. (male) definition: duct located outside of the testes. 3 parts: head - body - tail. 4 Functions:concentrate sperm - store sperm - transport sperm - site of sperm maturation. entire process takes ~40-60 days
prostate gland
epididymis: definition - 3 parts - 4 functions
colostrum
leydid or interstitial cells
13. Why does estrus happen before ovulation?
monestrous
what has to happen for males for copulation to occur
Lutinizing Hormone in males
you want as much sperm as possible to come in contact with the egg before ovulation. the main idea is to have the sperm already in the oviduct when the egg passes through
14. 1. bring in new genes - 2. replace males with leg problems (difficulty breeding) Note: culling has a much greater emphasis in the dairy industry vs the beef industry.
urethra
Culls bulls earlier (2 reasons)
ewe estrus
1. more cost effective - 2. powdered milk is in excess production
15. Indicator of sperm production. the bigger the scrotal circumference the bigger volume of sperm because more seminal vesicles available to produce the sperm
butterfat
seminiferous tubules
cryptorchid
scrotal circumference (BSE)
16. 24 hours before end of estrus cycle
purpose of Breeding Soundness Exam (BSE) for males
prostaglandin
Hard
mare ovulation
17. Completes uterine growth initiated by estrogen and prepares the uterus for nourishment of developing embryo if pregnancy occurs - supports pregnancy by maintaining quiescent state of reproductive tract and suppresses mating behavior - prevents ovulat
mastitis
sow estrus cycle
mare's estrous cycle
functions of progestrone
18. Cleans and lubricates the urethra ahead of the sperm. (if not - the urine in the urethra has a high salt content and would cause sperm to rupture and die)
Sperm survival specs
cowper's gland
penis and prepuce observation (BSE)
prostate gland
19. Boars and stallions-> deliver semen directly into the cervix. bulls and rams-> deliver semen into the vagina.
penis sizes vs delivering methods
Testicles will produce testosterone but not sperm. Bull will attempt to mate - but will be sterile
Follical Stimulating in males
reason for seasonal breeding periods
20. Constitute 50-90% of the volume of the ejaculate. (3 glands total: seminal vesicles - prostate gland - cowper's gland)
accessory sex glands
Jersey Cow
urethra
sertoli cells
21. 1. seminiferous tubules - 2. sertoli cells - 3. leydid or interstitial cells
feeding a high producing dairy cow
you want as much sperm as possible to come in contact with the egg before ovulation. the main idea is to have the sperm already in the oviduct when the egg passes through
organs used in spermatogenesis
penis sizes vs delivering methods
22. 1. reproduction - 2. mastitis/udder problems - 3. low milk production - 4. soundness/poor feet and legs (living on concrete)
4 major reasons for culling dairy cows
butterfat
ewe gestation
penis proper
23. Animals which have only one estrous cycle (ex: dog - fox)
uterus
monestrous
cow estrus
6-8 weeks
24. % of fat in milk. makes cheeses and ice cream. regulates cost of milk
humans: stress level vs sperm
accessory sex glands
mare ovulation
butterfat
25. 147 days
organs used in spermatogenesis
why does the cow need fat deposits during pregnancy?
ewe gestation
purpose of Breeding Soundness Exam (BSE) for males
26. 1. sperm is not implanted in egg until hours after breeding. 2. fetal growth has not yet finished.
Follical Stimulating in females
6-8 weeks
Reasons for gestation length being affected
scrotal circumference (BSE)
27. Animals which have many estrous periods per year (ex: cow - sow)
monorchid
ewe estrus
polyestrous
dairy cattle pregnancy check
28. 26 hours after estrus begins
testis (gonads)
stag
Dairy Cattle Gestation
ewe ovulation
29. Hold the penis in the bulls body when not in use. releases penis before ejaculation or urination.
sertoli cells
retractor muscles
spermatogenesis
Parturition
30. (FSH) causes egg to mature in females
Lutinizing Hormone in females
vagina
seminiferous tubules
Follical Stimulating in females
31. (male) pushes the testes upward toward the body for warmth or protection
mare's estrous cycle
Hormones from both the fetus and the mom.
epididymis: definition - 3 parts - 4 functions
dartos muscle
32. 1. brain function - 2. blood flow - 3. willing female
cow ovulation
oviducts
what has to happen for males for copulation to occur
retractor muscles
33. Produce testosterone. located between the seminiferous tubules
Dairy calves are removed from cow at birth to...
leydid or interstitial cells
Grading choice
reason for seasonal breeding periods
34. Knife-loose ~1wk of growth. band-loose ~2wks of growth.
rectal palpation (BSE)
effects of estrogen
sigmoid flexure
growth lost from castration methods (knife & band)
35. (male) pushes the testes outward toward the legs for a cool-down off of the body
Mares
mastitis
ewe estrus cycle
cremaster muscle
36. (switzerland) 2nd in size and milk production - most muscle -
monorchid
epididymis: definition - 3 parts - 4 functions
dry matter and water
Brown Swiss Cow
37. Produce testosterone. located between the seminiferous tubules
Reasons for gestation length being affected
leydid or interstitial cells
reason for seasonal breeding periods
Dairy calves are removed from cow at birth to...
38. Failure to have one testis (gonad) to descend
seminiferous tubules
castration
cow ovulation
monorchid
39. 4-6 days
accessory sex glands
functions of progestrone
reasons for castration
mare estrus
40. So when offspring are born - there is more food to be found for energy stores and fat deposits IN THE SPRING
butterfat
Size of cow in relation to the amount of milk produced
dartos muscle
reason for seasonal breeding periods
41. Sperm production
behavioral signs of estrus
leydid or interstitial cells
Mares
spermatogenesis
42. When she is pregnant in her last trimester because she needs the energy to carry around and deliver the calf. and when the calf is born because the cow needs the fat to be deposit it into her milk for the calf's energy stores.
you want as much sperm as possible to come in contact with the egg before ovulation. the main idea is to have the sperm already in the oviduct when the egg passes through
Lutinizing Hormone in females
6-8 weeks
why does the cow need fat deposits during pregnancy?
43. (LH) causes female's egg to break (her period)
Sperm survival specs
Lutinizing Hormone in females
Parturition
testis (gonads)
44. Milk ~305 days - dry 60 days prior to calving
Lutinizing Hormone in males
Dairy Cattle milking schedule
ewe ovulation
Dairy Cattle Lactation (standard)
45. Check feet and legs - look for masculine traits in build such as crest and muscling
femininity of a heifer
visual evaluation (BSE)
Jersey Cow
mastitis
46. Duct which connects epididymis to urethra of the penis. transports sperm at ejaculation. cut to sterilize male.
eminal vesicles
estrous
oviducts
van deferens
47. Reproduction. more offspring leads to more feed costs - but is offset by reproduction numbers
Where livelihood is in agriculture
spermatogenesis
pelvis
cowper's gland
48. Completes uterine growth initiated by estrogen and prepares the uterus for nourishment of developing embryo if pregnancy occurs - supports pregnancy by maintaining quiescent state of reproductive tract and suppresses mating behavior - prevents ovulat
6-8 weeks
semen evaluation (BSE)
functions of progestrone
scrotum
49. Located directly in front of the cervix. fertilized egg implants here. connected to two uterine horns. implantation occurs on the same side as ovulation occurred.
normal presentation of the fetus
estrus
dartos muscle
uterus
50. Cleans and lubricates the urethra. secretion is thick - viscous - and very slippery.
Warning
: Invalid argument supplied for foreach() in
/var/www/html/basicversity.com/show_quiz.php
on line
183