Establishment of the reproductive performance diagnosis technology in dairy cow: Relationship between reopening heat and sex hormone and blood biochemical profile results in postpartum dairy cows
2009
Takeuchi, T.(Fukui-ken. Animal Experiment Station, Mikuni (Japan)) | Tanaka, K. | Sasaki, K.
We carried out the image analysis of the ovary with the somascope, the progesterone density measurement, a blood biochemical profile from postpartum to reopening estrus excitement regularly. We assumed the cow which in heat after childbirth within 60 days, and recurred early recurrence cow group. We assumed a cow and the non heat cow that heat recurred after 61st recurrence delay cow group. And I weighed the test result of both crowds. As a result, GOT of the first week was high, and the recurrence delay cow group showed the value that blood urea nitrogen (BUN) of postpartum the second week, total cholesterol (TCHO) were low after postpartum, and a difference was recognized between recurrence cow group for the early stage (p 0.05). It was guessed that the fall of the nourishment state at the early stage, a liver function fall influenced heat recurrence of the next after postpartum, and the possibility that the blood biochemical profile of eyes was effective as sexual excitement recurrence diagnostic criteria was suggested after postpartum for one or two weeks.
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