POPM 4230 Lecture Notes - Lecture 19: Endometritis, Trichomonas, Campylobacter
7 Dec 2018
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Birth breeding age calving lactation dry off dry period calving. Making sure the cow calve and become pregnant again very efficiently. Peak at 60 d in milk (dim) Want the herd to as close to the peak production as possible. First lactation = persistency over time but lower peak. It is difficult to get cows to stay healthy. Endometritis (inflammation of the internal lining of the uterus) Failure to detect heat / inseminate (this is the biggest reason) Before examining the infectious agents, we need to ask if they have. 10-15% of pregnancies diagnosed at 28 days gestation are lost by 60 d. Lack of progesterone to maintain pregnancy (produced by corpus luteum) Bovine viral diarrhea virus, infectious bovine rhinotracheitis virus, leptospirosis, neospora. Heifer is born co-twin to a male. Blood supply shared via placenta between the twin, xy and xx chromosome shared between the two offspring. Short vulva, if insert a rod, it would not go very far.
