Observations on the sucking behaviour of newborn Suffolk lambs
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概要
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Some aspects of the sucking behaviour of Suffolk lambs were recorded during their first hours of life. Observations were made at parturition on 8 single-and 14 twin-bearing ewes, all of which took place in indoor lambing pens.<BR>The median times for first to attempt to stand, first to stand and first to attempt to suck were 10, 17-18 and 17-19 min after birth for all lambs respectively. The median time for first to suck successfully was 56-60 min for singles and second-born twins compared with 82 min after birth for first-born twins. The median time interval between the birth of the first and second lambs of a twin pair was 20 min, but this interval varied between 1 to 60 min. In the twins for which this interval was long, the attempt to suck by the first-born twin was sometimes interrupted by the ewe giving birth to another lamb.<BR>It appeared that the first-born twin was not necessarily the first lamb to suck successfully.
- 日本緬羊研究会の論文
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