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Hormone status of heifers with different periods of intrauterine development


, : Hormone status of heifers with different periods of intrauterine development. Vestsi Akademii Agrarnykh Navuk Res iki Belarus' ( 3): 67-69

The plasma concentrations of thyroxine, progesterone, triiodothyronine, cortisol and oestradiol at 5, 7 and 9 months of age were determined in 45 Russian Black Pied heifer calves. Correlations among the concentrations of the hormones are tabulated. The multiple correlation of duration of intrauterine life of the calves with the hormone concentrations at 9 months of age was 0.973.

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Related references

Dermody, W.C.; Reel, J.R.; Beck, C.C.; Coppock, R.W., 1976: Serum luteinizing hormone concentrations in dairy heifers after intravenous and intrauterine administration of luteinizing hormone-releasing hormone. Veterinary Medicine, Small Animal Clinician 71(4): 419-422

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