Abstract：
:Two studies were carried out to test the ability of Préalpes du Sud x Lacaune (Study 1) and Rambouillet ewes (Study 2) to recognize their lambs during the first 24 h postpartum. Ewes were given the choice between their own and an alien lamb of approximately the same age, in a triangular pen of 10 m×10 m×10 m. A lamb was placed in each of the two corners while the mother was released from the third corner. Direct access to the lambs was prevented by an open barrier located at 1 m from the pens in which the lambs were kept. Ewes were studied at 8 h (n=10, 12), 12 h (n=20, 10) and 24 h postpartum (n=29, 9; Study 1 and Study 2 respectively). Tests lasted 3 and 5 min in Study 1 and 2, respectively. Although the first choice of the ewes did not differ from random, in both studies mothers spent significantly more time near their own lamb than near the alien. In both breeds a significant preference for the own lamb was already present at 8 h (P<0.05). We conclude that ewes are very likely to recognize their lamb without the aid of olfactory cues as early as 8 h postpartum, which is much sooner than thought from previous studies.
journal_name
Behav Processesjournal_title
Behavioural processesauthors
Terrazas A,Ferreira G,Lévy F,Nowak R,Serafin N,Orgeur P,Soto R,Poindron Pdoi
10.1016/s0376-6357(99)00045-5subject
Has Abstractpub_date
1999-08-01 00:00:00pages
19-29issue
1eissn
0376-6357issn
1872-8308pii
S0376-6357(99)00045-5journal_volume
47pub_type
杂志文章abstract：:Rats were trained to discriminate short or long durations of houselight illumination using a choice procedure. During the test phase of each trial, the left and right levers were presented with an auditory cue above one of them on (cued lever) while the other was off (uncued lever). The auditory cue was presented imme...
journal_title：Behavioural processes
pub_type： 杂志文章
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journal_title：Behavioural processes
pub_type： 杂志文章,评审
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journal_title：Behavioural processes
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journal_title：Behavioural processes
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journal_title：Behavioural processes
pub_type： 杂志文章
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journal_title：Behavioural processes
pub_type： 杂志文章,评审
doi：10.1016/j.beproc.2014.02.008
更新日期：2014-05-01 00:00:00
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journal_title：Behavioural processes
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journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/S0376-6357(99)00020-0
更新日期：1999-05-03 00:00:00
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journal_title：Behavioural processes
pub_type： 杂志文章
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journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/j.beproc.2009.07.012
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journal_title：Behavioural processes
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更新日期：2004-07-30 00:00:00
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pub_type： 杂志文章
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更新日期：2019-11-01 00:00:00
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journal_title：Behavioural processes
pub_type： 杂志文章,评审
doi：10.1016/j.beproc.2008.12.005
更新日期：2009-03-01 00:00:00
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journal_title：Behavioural processes
pub_type： 杂志文章
doi：10.1016/s0376-6357(97)00040-5
更新日期：1997-11-01 00:00:00
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journal_title：Behavioural processes
pub_type： 杂志文章
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journal_title：Behavioural processes
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更新日期：2013-11-01 00:00:00
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journal_title：Behavioural processes
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journal_title：Behavioural processes
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journal_title：Behavioural processes
pub_type： 杂志文章
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journal_title：Behavioural processes
pub_type： 杂志文章
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