Pregnancy and Parturition Flashcards
1
Q
What are some maternal factors effecting the length of gestation?
A
age of dam
2
Q
What are some fetal factors effecting the length of gestation?
A
- twin
- sex of fetus
- pituitary and adrenal functions
3
Q
What are some genetic factors effecting the length of gestation?
A
- breed
- fetal genotype
4
Q
What are some environmental factors effecting the length of gestation?
A
- nutrition
- season
5
Q
which animal has the longest + shortest length of gestation?
A
longest: Horse
shortest: swine
6
Q
What is essential for the maternal recognition of pregnancy in all species?
A
- maintenance of CL function
- Block the effects of PGF2a
7
Q
once recognition is complete, what reproductive organ changes occur?
A
- Edema and mucous formation in vagina
- cervix dilation and formation of mucous plug
- uterus increases in size and muscle relaxation
- ovary ceases estrus cycle (not in mare)
- pelvic ligaments relax
