Midterm Flashcards
(353 cards)
- What is responsible for the induction of PGF2α synthesis by the endometrium at the beginning of the luteolysis in the cow?
a) Bovine IFN-tau produced by the embryo.
b) Relaxin produced by the placenta.
c) Progesterone produced by the luteal cells. d) Oxytocin produced by the luteal cells.
d) Oxytocin produced by the luteal cells.
- Indicate the incorrect statement
a) Different group of neurons are responsible for the tonic and pre-ovulatory-like GnRH release from the hypothalamus.
b) GnRH transported to the adenohypophysis via the portal plexus.
c) GnRH is produced in the anterior pituitary.
d) Oxytocin is produced by the paraventricular nuclei of the hypothalamus.
c) GnRH is produced in the anterior pituitary.
- What does puberty mean in domestic animals?
a) Age for first breeding.
b) Maturation of genital organs and start of cyclic sexual activity. c) Reaching the full body size and conformation.
d) Time of the first conception.
b) Maturation of genital organs and start of cyclic sexual activity.
- What is typical for the equine estrous cycle?
a) Polyoestrous species with 21-day-long cycles throughout the year. b) Polyoestrous species with 17-day-long cycles throughout the year. c) Seasonally polyoestrous long day breeder species.
d) Seasonally polyoestrous short day breeder species.
c) Seasonally polyoestrous long day breeder species.
- What is the optimum time for insemination in cattle?
a) By the first clinical signs of heat.
b) At peak of the clinical heat symptoms.
c) Second half/last third of the heat.
d) 12-18 hours after the end of clinical signs of the estrous.
b) At peak of the clinical heat symptoms.
- In the sow, the maternal recognition of pregnancy is based on the production of:
a) Progesterone
b) Pregnancy specific hormone B
c) Estradiol
d) Pregnancy associated glycoprotein
c) Estradiol
- What is the time of ovulation in cattle?
a) At the first clinical sign of heat.
b) At the peak of clinical heat symptoms.
c) Second half/last third of the heat.
d) 12-18 hours after the end of clinical estrous signs.
c) Second half/last third of the heat.
- Which statement is true regarding the hormonal background of cattle ovulation?
a) Ovulation takes place at maximal E2 level.
b) Ovulation takes place when the P4 level exceed 2ng/ml.
c) Ovulation is triggered by luteolysis levels of PGF2α.
d) Ovulation takes place 24-30 hours after the LH peak.
a) Ovulation takes place at maximal E2 level.
- Which hormone elevation in the fetus is the very first signal inducing the parturition in bovine?
a) ACTH + Cortisol
b) PGF2α + Oxytocin
c) Estradiol + Progesterone d) Relaxin
a) ACTH + Cortisol
- How many stages does the parturition have in the cow?
a) 2
b) 3
c) 4
d) 5
b) 3
- One of the below statements concerning the induction of parturition in the cow is incorrect. Parturition can be induced with:
a) Relaxin
b) Corticosteroids
c) PGF2α and analogues
d) PGF2α and corticosteroid
a) Relaxin
- How does a PGF2α treatment with therapeutic dose at the day after parturition act on the uterine contractility?
a) Enhances
b) Inhibits
c) Does not act on it
d) Enhances on the frequency of contractions but does not influence their intensity
c) Does not act on it
- What characterizes uterine contractility of normo-calemic cows with retinal foetal membranes as related to healthy controls within 2 days post-partum?
a) Weaker
b) Same magnitude
c) Stronger
d) Total inactivity
a) Weaker
- What would you use as first choice to treat puerperal paresis?
a) IM vitamin D
b) Diet rich in cations
c) PO calcium chloride
d) IV calcium gluconicum
d) IV calcium gluconicum
- Indicate the correct statement:
a) Involution in dairy cow is always completely finished before the first ovulation.
b) Lochia in physiological conditions is a watery, brownish, foul smelling liquid.
c) Blood progesterone (P4) level is high during early involution
d) Size of the uterus is decreased to approx. its half within 10 days post-partum.
e) Following physiological calving, the uterus can be considered sterile.
d) Size of the uterus is decreased to approx. its half within 10 days post-partum.
- Please choose the one of the bacterial species given below, which presence in the uterus on days 28-35 post-partum is linearly correlated with impaired reproduction performance later:
a) Escherichia coli
b) Streptococcus uberis
c) Prevotella bivia
d) Trueperella (Araconobacteriu,) pyogenes
e) Histophilus somni
d) Trueperella (Araconobacteriu,) pyogenes
- Please evaluate the below statements about clinical examination of different forms of metritis. Indicate the correct statement:
a) One clinical examination upon transfer from calving unit to production group (i.1. 4-6 days post-partum) is enough.
b) General clinical examination, taking rectal temperature and observation of genitals provide good enough information for the diagnosis.
c) To establish the diagnosis of sub-clinical endometritis, ultrasonography is necessary.
d) If no spontaneous shedding of discharge takes place, collection from the carnival orifice either manually or using appropriate tool is strongly advised.
d) If no spontaneous shedding of discharge takes place, collection from the carnival orifice either manually or using appropriate tool is strongly advised.
- How can the post-partial negative energy balance be prevented or decreased?
a) With maximal energy intake during the dry period.
b) By restricted feeding during the dry period, followed by ad libitum feeding with maximal energy content during lactation.
c) Maximal energy intake during the dry period and restricted feeding after calving.
d) Feeding only with energy-rich concentrate after calving.
b) By restricted feeding during the dry period, followed by ad libitum feeding with maximal energy content during lactation.
- When does the estrous cycle reinitiate after parturition in dairy cows?
a) 23+/- 7 days
b) 42+/- 7 days
c) 70+/- 7 days
b) 42+/- 7 days
- The order of hormonal treatments at the Co-Synch protocol?
a) GnRH + PGF2α + GnRH + AI
b) Progesterone + PGF2α
c) PGF2α + PGF2α
a) GnRH + PGF2α + GnRH + AI
- For how many days the developing corpus luteum is not able to respond to prostaglandin treatment?
a) 6 days
b) 2 days
c) 10 days
d) It is able to respond immediately.
a) 6 days
- What does silent heat mean?
a) No clinical signs of heat.
b) No corpus luteum develops.
c) No follicle develops.
d) No sound is given by the animal.
a) No clinical signs of heat.
- How can you diagnose an internal uterine torsion in cow?
a) Vaginal palpation
b) Vaginoscopy
c) Rectal palpation
d) Laparotomy
c) Rectal palpation
- Which species is not polyoestrous?
a) Cat
b) Horse
c) Ruminant
d) Dog
e) Swine
d) Dog