کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5535817 1551594 2017 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
ResearchBehavior of lambs at different ages during brief periods of increased sensorial isolation from their mothers
ترجمه فارسی عنوان
تحقیقات رفتار جواهرات در سنین مختلف در طول دوره های کوتاهی از انزوای حس گرایانه از مادرانشان افزایش یافته است
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم دامی و جانورشناسی
چکیده انگلیسی

To determine the behavior of different-aged lambs during short periods of increased sensorial isolation from their mothers, 6S0 ewe-lamb pairs were randomly assigned to one of the following groups: “C,” intact lambs that remained with their mothers; “A,” lambs with restricted auditory capacity; “A+V,” lambs with restricted auditory and visual capacities; “A+V+W,” lambs with restricted auditory and visual capacities plus separation from their mothers by an open wire mesh; and “A+V+S,” lambs with restricted auditory and visual capacities plus separation from their mothers by a solid wall. These treatments were repeated in the same animals when lambs were 3 (G3), 10 (G10), and 20 (G20) days old. The behavior of lambs was recorded during each 15-minute separation period, and data were examined using covariance analysis to determine differences for repeated measures over time. In general, after the physical separation from the ewes (A+V+W and A+V+S groups), lambs emitted more vocalizations (3, 10, and 20 days old) and displayed more frequent urination (3 days old), exploration of objects (20 days old) and conspecifics (3 and 20 days old), escape attempts (A+V+W at 10 and 20 days of age; A+V+S at 20 days old), or walking (A+V+W at 10 and 20 days of age; A+V+S at 3, 10 and 20 days old) and lying down (10 and 20 days old for A+V+W and 3 days old for A+V+S) in comparison to the other treatments. G10 and G20 lambs of the A+V, A+V+W, and A+V+S groups also displayed greater values for walking activity (P < 0.05) in comparison with G3 lambs. In general, it is concluded that the exhibition of the examined behavioral parameters was increased with the degree of sensorial isolation, and particularly when the physical contact between the lambs and their dams was restricted. As lambs became older, they showed an increased behavioral reactivity in response to the increased sensorial isolation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Veterinary Behavior: Clinical Applications and Research - Volume 22, November–December 2017, Pages 29-34
نویسندگان
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