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Last updated 10:20 AM on 8/9/26
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10 Terms

1
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what is the gestattion length of a mare

330-340 days

2
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what is the gestation length of a cow

270-280 days

3
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gestation length of a ewe

147-150 dats

4
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gestation length of a sow

115

5
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gestation length of a bitch

63-65 days

6
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gestation length of a guinea pig

60 days

7
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luteolysis in gthe cow and ewe

  • uterine pulsatile secretion of PGF2a

  • diffuses from uterine vein to ovarian artery via the utero ovarian plexus in cows

  • in sheep to utero ovarian vein to ovarian artery

  • travels to CL

8
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luteolysis in sows

  • pusatile PGF2a release

  • diffuses from uterus onto adjacent ovry luteal cells

9
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luteolysis in the mare

  • pulsatile PGF2a release from the uterus

  • travel to ovary and destroy CL

10
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luteolysis in the bitch

  • relies on withdrawal of pituitary luteotrophic support (prolactin) in late diestrus

  • dropping of prgesterone leads to the end of diestrus

  • CL regression