4th Exam (T or F) Flashcards
The fetal cotyledons and cotyledons are palpable in a COW at 95 days of pregnancy
TRUE
Radiography is beneficial to do during the LAST trimester of pregnancy in bitch to determine the number of fetus & size of pelvic canal
TRUE
Parturition is initiated with secretion of estrogen, oxytocin & PGF2 alpha that wagers cervical dissolution and uterine contraction
FALSE — Initiated by prolactin
Estrogen is needed during parturition because it increases the number of oxytocin and PGF 2 alpha receptors in the myometrium
FALSE — Oxytocin receptors only
Estrogen is needed during parturition because it increases the number of oxytocin in the myometrium
Relaxin,
estrogen &
PGF 2 alpha
causes relaxation of the cervix
—> to facilitate the explulsion of the fetus
TRUE
The normal interval of delivery of kittens/pup is 20 minutes
TRUE
Cervical dilation occurs in pregnant mares in 1-3 hours
TRUE
Primary uterine intertia in MARES occur due to exhaustion of uterine muscles
FALSE — Secondary (in mares)
SECONDARY uterine intertia in MARES occur due —> to exhaustion of uterine muscles
Cases of small pelvic canal in a pregnant CAT is best managed with cesarean section
TRUE
Uterine prolapse commonly occur in sheep due to primary uterine intertia
FALSE —> VAGINAL prolapse
Vaginal prolapse commonly occur in SHEEP due to primary uterine intertia
Estrogen,
progesterone &
prolactin
promote duct development & alveolar cell proliferation of mammary gland in pregnant females
FALSE — no prolactin
Estrogen & Progesterone
—> promote duct development & alveolar cell proliferation of mammary gland in pregnant females
Colostrum have a higher fat, carbohydrates, protein, vitamin A compared with the milk secreted by the mammary gland
FALSE —> lower in LACTOSE (a carb)
Prolactin, parathormone, insulin, cortisol and progesterone are hormones needed for lactogenesis during nursing
FALSE — No progesterone
(2) that inhibits lactogenesis
1. Progesterone
2. Estrogen
Female fetuses of domestic mammals and avian would have a homozygous chromosomes
FALSE — Heterozygous (in avians)
Free-martinism occurs due to the chromosomal aberration MOSAIC
TRUE
FSH secretion occur in PULLETS to stimulate growth and maturation of ovarian follicles starting at 18 weeks of age
TRUE
Egg stays the longest in the uterus due to formation of shell membranes and shell
FALSE — Shell only in uterus
Shell membrane is formed in Isthmus
Cats have litter size range of 3-6
TRUE
Engagement of fetus in the cervical canal initiates Ferguson reflex to facilitate OXYTOCIN secretion and release
TRUE
Domestic rooster, geese have vestigial penis, thus mating very rapid through cloacal kiss
FALSE
except in (2)
1. Geese
2. Ratites (flightless birds)
• Ostrich
• Emu
• Kiwi
• Cassowary
• Rhea
• other large birds
Orange and green stimulates oviposition in layers
FALSE —> green & blue INHIBITS
Orange or RED light stimulates
Crop weight increases during hatching to post-hatching in pigeons due to crop milk production controlled by PROLACTIN
TRUE
Testicular hypoplasia in stallions/bull occur due to the presence of XYX
FALSE — 65XXY
Estrogen secreted during puberty in female animals leads to myotropism, sexual behavior, libido & pheromone secretion
TRUE
The fetal testes secrete testosterone and MIH to ensure the development of the Wolffian duct
TRUE
Suckling, and use of milk machine can stimulate milk ejection in farm domestic animals
TRUE
Secretion of immunoglobulin rich colostrum occurs a few days or weeks in DAMS to provide protection to the fetus.
TRUE
Administration of doxapram orally & oxygenation are beneficial for puppies or kittens delivered by vasaroon section
FALSE — Sublingual or under the tongue
Flexed forelimb of a calf can be manually corrected for delivery through mutation
TRUE
Stage 3 of parturition is characterized by increased intensity of uterine contraction for placental expulsion
FALSE — Amplitude (not intensity)
Estrogen, oxytocin and PGF-2 alpha are critical maternal hormones of parturition to cause uterine contraction
TRUE
Ultrasound is advantageous in MARES to detect pregnancy as early as 7 days after mating.
FALSE — 9 to 16 days
The fremitus is detectable upon rectal palpation in a cow at 80 days of pregnancy
TRUE
Prolactin is the primary hormone for maternal behavior in avians.
FALSE — paternal
Jacana mallee and cuckoos practice paternal behavior.
FALSE — Cuckoos not mentioned
Increasing lighting >12 hours in a layer farm increases productivity
TRUE
Hawk, falcon possesses functional left and right ovary
TRUE
(+ Kiwi)
Infundibulum secretes the shell membrane during egg formation in domestic chickens
FALSE —> Isthmus
Magnum is the site of fertilization for layers
FALSE — Infundibulum
Estrogen and FSH promote mammary gland development and milk synthesis during the lactation
FALSE —> Estrogen & Progesterone
During the first stage of lactation, colostrum is formed for maternal transfer of immunity
TRUE
During the first few hours of nursing, the immunoglobulins heavily absorbed are IgG, IGE, M and A.
FALSE — no IGE
IgA, IgG, IgM
Prolactin is the primary initiator of lactogenesis
TRUE
Underdeveloped ovaries can occur with polyploid
FALSE — Aneuploid
Chimera in bulls leads to hermaphroditism.
FALSE — in Heifers
The normal chromosome number in dogs is 28.
FALSE — 39
Colostrum is best suckled in piglets during the first 12 hours for maximum absorption
TRUE
Prestimulation of the mammary gland increasing oxytocin secretion to maximize milk ejection for a short duration of time.
TRUE
Testosterone secreted by the Leydig cells accounts for the secondary sexual changes during puberty.
TRUE
Both estrogen and progesterone promotes mammary gland development and milk synthesis during the lactation
FALSE —> No estrogen
