Article Text

Induction of twin-calving by non-surgical embryo transfer: a field trial
  1. JM Sreenan,
  2. MG Diskin and
  3. T McDonagh

Abstract

Non-surgical embryo transfers were carried out on nine farms to 84 previously inseminated recipient cows. Insemination and transfers were at a fixed time after synchronisation. Forty-nine (58 pr cent) of the 84 cows calved to the fixed insemination and transfer, producing a total of 69 calves or 1.4 calves per cow calving. The twinning rate was 41 per cent in cows calving. Transferred embryo survival was high (59 per cent) in pregnant cows. Data on calf and calving performance are given.

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