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Synchronisation of oestrus in heifers by means of progesterone-releasing vaginal coils

Synchronisation of oestrus in heifers by means of progesterone-releasing vaginal coils

Svensk Veterinartidning 30(24): 887-888

Progesterone-releasing vaginal coils were inserted into 54 heifers, and were removed after 12 days. All females exhibited oestrus 2-3 days after coil removal. Of heifers inseminated 2, 3 or 4 days after coil removal, 33.3, 48.5 and 40.7% conceived; there were highly significant differences between herds.

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Accession: 000762244

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