کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
5536000 1402262 2017 3 صفحه PDF سفارش دهید دانلود کنید
عنوان انگلیسی مقاله
Effect of floor area allowance on behavior and performance of growing lambs
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم دامی و جانورشناسی
پیش نمایش صفحه اول مقاله
Effect of floor area allowance on behavior and performance of growing lambs
چکیده انگلیسی

Twenty-one lambs (35-day-old, 6.71 ± 0.15 kg) were used in a completely randomized design to study the effect of pen size on behavior and performance. Lambs were randomly allocated to 3 different pen sizes (small: 0.34 m2/lamb, medium: 0.48 m2/lamb, and large: 0.63 m2/lamb) located in a semiopen barn for 42 days after 35-day milk feeding. Daily dry matter intake and average daily gain were recorded. Maintenance behaviors were recorded based on the methods of scan sampling. The lambs kept in large pens showed an increase in dry matter intake compared to other groups (P < 0.05). However, there were no differences in average daily gain and feed conversion ratio among 3 groups. When pen size increased, lambs spent less time in the standing position and more time eating, ruminating, walking, playing, and resting (P ≤ 0.01). There were no significant differences between groups in term of drinking and other behavior parameters (defecation, urination, etc.). It was concluded that 0.34 m2/lamb may be an inadequate space allowance for weaned growing lambs, physiologically, but larger space provided for more varied and active behaviors.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Veterinary Behavior: Clinical Applications and Research - Volume 19, May–June 2017, Pages 102-104
نویسندگان
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