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Hormone status of heifers with different periods of intrauterine development

Vestsi Akademii Agrarnykh Navuk Res iki Belarus' ( 3): 67-69

Hormone status of heifers with different periods of intrauterine development

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.

Accession: 003161757

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