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ECBHM > Theriogenology > Flashcards

Theriogenology Flashcards

1
Q

Quirox -Castro - BoHV-1 virus detection in genital organs

2019

A

BoHV-1 detected in utrerus of all seroporitive cows. Virus not detected in seronegative cows.

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2
Q

FIlho- pregnancy associated glycoproteins for PD at 24d

2020

A

Serum conc of PAG at day 24 >0.33ng/ml and >0.54 in heifers was 95% accurate for PD status at day 30
Heifers that had late embryonic death had lower PAG levels at day 24 - didnt work for cows

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3
Q

Sefi-Jamadi - Seasonal differences on semen quality and embryos BB bulls

2019

A

Higher sperm conc at lower THI (volume,motility, total output not affected)
Freezethawed semen - motility affected, viability and velocity were lower in high THI

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4
Q

De Lima - Induction of puberty long acting P4 injection

2020

A

Induction with P4 hasten puberty and lead to preg success in prepubertal heifers like pubertal heifers

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5
Q

Schlegl - Post insemination cepharin IU

2020

A

Cepharin tx 6h post AI didnt alter preg rates

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6
Q

Dahl - MAstitis and parity effects on preg loss

2020

A

Impact of mastitis on pregancy loss is higher in older cows (parity >3)

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7
Q

Ryan - increased calcium inclusion in acidified pp diet = better uterine health and fertility

2020

A

Cows fed acidified, calcium supp diet = better uterine environment

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8
Q

Tuska - effect of elective c section on colostrum in BB cows

2021

A

Primiparous animals- neg impact on colostrum volume
Time in c section = significant effect on colostrum volume
Summer - negative impact on colostrum volume
No significant effects on colostrum quality

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9
Q

Besbaci - NSAID on PR embryo transfer

2021

A

NSAID = higher preg from ET (15%)
NSAID in hard to pass catheter cows = bigger effect (71%)

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10
Q

Silva - Progesterone profile and follicles using CIDR

2021

A

Greater circulating P4 with PRID>CIDR
No effect on DF diameter and follicular growth rate
Higher circulating P4 = slower DF growth rate

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11
Q

Romano - Effect of fasting pre EEJ

2021

A

Fasted group - higher % penis extrusion, erection and ejaculation
Reduction in bladder size

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12
Q

Oliviera - Lepto embryonic death in herds with repro disorders

2021

A

High seroactivity = more repro problems
Prominance of Sejroe = embryo death, ictohaemorrhagicum = abortion

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13
Q

Loureiro - repro syndrome with lepto?

2020

A

Poor conception rates

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14
Q

Loureiro - Where does lepto colonise in bovine genital leptospirosis

2020

A

Uterus

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15
Q

Ianuzzi - Sperm telomere length and association with semen quality

2020

A

Associated with increased motility and facilitates chomosonal alignment during meiosis

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16
Q

Reddy - how to detect BHoV-1 in bovine semen?

2020

A

PCR on semen sample for IBR DNA
***Not all infected bulls will shed IBR virus

17
Q

Menegassi - Evaluation of scrotal circumference

2019

A

Scrotal circumference predicts puberty (28cm - puberty)
Maximum scrotal circ in HEF and AA bulls at 600kg

18
Q

Ernstberger - Prediction of conception post endometritis

2019

A

Cows with vaginal discharge or truperella dx had lower CR at all DIM

19
Q

Yamanda - 3 methods of castration of Nalore bulls

April 21

A

Immunological castration is a viable alternative to surgical - less invasive, better welfare and less stress

20
Q

McCarthy - Age at first calving of contract reared vs home bred heifers

Jan 22

A

Rearing strategy did not significantly affect heifer AFC

21
Q

Viana - Immunisation against GnRH as a method for cystic ovarian dz

June 21

A

Anti GnRH vaccine effective at inducing the regression of follicular cysts as well as luteal

22
Q

El-Sherbiny - Platelet rish plasma to semen extender

Oct 22

A

PRP enhanced cryotolerence and fertilising potential

23
Q

Wilke Deniz - PGF2a at moment of AI using sexed semen or conventional semen

Aug 21

A

Administration of PGF2a at timed AI increased the fertility of cows that didnt display oestrus independant of semen type

24
Q

Ioannis - Age, gest and heat stress on ghrelin secretion

Sept 21

A

Ghrelin lower in summer cf winter
lactation induced altered metabolic status of animal governs ghrelin at gestational stages

25
Q

Ghai - Allogenic umbilical stem cells effectiveness at alleviating subclinical mastitis

May 22

A

IV and local route admin of stem cells safe and efficacious for alleviating subclinical mastitis in dairy cows

26
Q

Shahat - Amelioration of heat stress induced damage to testes and sperm

Sept 2020

A

ECBHM (13 decks)

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