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ANSC 108 Exam 2
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- 4.ED FORMS - Verbs Or Modifiers.
Exam of 7 pages for the course 4.ED FORMS - Verbs or Modifiers. at 4.ED FORMS - Verbs or Modifiers. (ANSC 108 Exam 2)
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ANSC 108 Exam 2"True Stomach" In Ruminants - ANS-Abomasum
Abomasum - ANS-True stomach
First glandular portion of ruminant GIT
Ventral to omasum
Essentially the same as stomach in non-ruminant
Advantages of AI - ANS-Genetic improvement
Disease control (especially STDs)
Improved record keeping
Eliminates need to keep bulls
May be more economical
AM/PM Rule - ANS-Inseminate cow 12 hrs after estrus detected
Bulbourethral Gland (Cowper's Glands) - ANS-Account for gel-like portion of semen in
boars
Helps force semen from urethra at the time of ejaculation
Bull Reproductive System - ANS-Sigmoid flexure, testis, and scrotum
Characteristics and Actions of Estrogen - ANS-Steroid
Released from granulosa cells of the mature follicle and placenta; sertoli cells in testis
Target: hypothalamus, entire repro tract, and mammary gland
Actions:
-Sexual behavior during estrus
-Secondary sex characteristics at time of puberty
-Relaxes cervix and increased uterine motility during estrus
-Elevates secretory activity of entire repro tract
Check-off Fund - ANS-Given $1/head of cattle each time a cow is sold. This money is
used for research and advertisement for beef
Chryptorchid - ANS-Testes don't descent (Can be bilateral or unilateral)
Colic - ANS-Digestive upset (Common in horses)
, Cow/Calf - ANS--Cows and heifers are mated to bulls by natural service or AI to
produce calf crop
-Two types: commercial and purebred
-Commercial: raise steers and heifers that are sold at weaning and destined to become
slaughter animals
-Purebred: specialize in seedstock production
Delutition - ANS-Reswallowing
Disadvantages of AI - ANS-Time required for estrous detection
Percent of cows in estrus during breeding season
Trained personnel required (service and semen supplier/AI tech)
Overuse of inferior sires
EPD - ANS-Expected progeny difference - the difference in performance of future
offspring of a parent as compared to progeny from other parents, when each are bred to
mates of equal value
Eructation - ANS-Belching of gas
Fermentation creates a large amount of CO2 and Methane
If this gas isn't released the animal will bloat to death
Estrous cycle length - ANS-21 days
Estrus Length - ANS-18 hours
Feedlot - ANS-Place where beef cattle are placed in confinement, fed harvested feeds,
and fattened for slaughter.
Feedlot Production - ANS-Feeding high concentrate rations in a large confinement
facility specifically to finish cattle
Freestall Barn - ANS-Has individual stalls bedded with sand
Allows for each cow to be comfortable and prevents udders from being stepped on
Cool, shady bedding place in summer
Cows tend to stay in same freestall each day
Freshen - ANS-Calving and starting milk production
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