کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4524278 1625448 2006 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Socio-spatial criteria are important for the establishment of maternal preference in lambs
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم دامی و جانورشناسی
پیش نمایش صفحه اول مقاله
Socio-spatial criteria are important for the establishment of maternal preference in lambs
چکیده انگلیسی
At lambing, ewes (Ovis aries) tend to isolate themselves from the flock and this is believed to be beneficial to the early relationship with their young. Later, they return to the flock and lambs progressively interact with other conspecifics. This study focused on the importance of isolation and socio-spatial factors on maternal recognition in lambs. All the ewes gave birth in individual 2 m2 pens and lambs were able to interact freely with their mothers. A first experiment investigated the role of isolation: INT1 lambs could progressively interact with other mothers and young in a pen which was increased in surface area from birth to 24 h (0-6 h: 1 ewe, 1 litter, 2 m2; 6-12 h: 2 ewes, 2 litters, 4 m2; 12-24 h: 4 ewes, 4 litters, 8 m2); ISO lambs remained in small pens (2 m2) and only with their mothers for 24 h. The lambs were submitted to a 5 min choice test between their own mothers and an alien ewe. At 12 h INT1 lambs, unlike ISO lambs, showed a clear preference for their mothers. ISO lambs still did not show any maternal preference at 24 h. The second experiment investigated the relative importance of social interactions while keeping the same space allowance for the two groups: INT2 lambs as described for INT1 in Experiment 1, and SPA lambs that remained isolated from the flock with their mothers but had the same increase in pen surface area as INT2 lambs. Both INT2 and SPA lambs displayed a preference for their own mothers at 12 h but INT2 lambs did so more rapidly. Our data also suggest that INT1 and INT2 lambs chose their own mothers at a distance. These results demonstrate that progressively increasing social interactions with flock members other than the mother facilitates the establishment of a preference for the mother in lambs. Increasing space allowance only also seems to have facilitating effects. This suggests that a rich socio-spatial environment from birth has beneficial effects on the development of filial bonding.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Animal Behaviour Science - Volume 96, Issues 3–4, February 2006, Pages 269-280
نویسندگان
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