کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5763271 1625312 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Aggressiveness in group-housed rabbit does: Influence of group size and pen characteristics
ترجمه فارسی عنوان
تداخل در خرگوش های گروهی: تاثیر اندازه گروه و ویژگی قلم
کلمات کلیدی
بازسازی خرگوش، مسکن جمعی، رفتار - اخلاق، استنتاج بیزی،
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم دامی و جانورشناسی
چکیده انگلیسی
The aim of this work was to study how the group size and the number of doorways in a pen may influence the aggressive interactions throughout the reproductive cycle among does kept in a part-time group housing system. Thirty-two crossbred multiparous pregnant rabbit does were housed in individual modules (0.5 m2) that were connected to form collective pens with two (P2) or four (P4) does (8 and 4 replications, respectively) by using one (D1) or two (D2) doorways. The females were maintained in stable groups from the start of the trial, 8 d before kindling (−8 d), until 2 d before kindling and from 18 d after kindling (+18 d) until weaning (31 d). The aggressive interactions were video recorded through 24 consecutive hours at −8 d and +18 d and at 21 d and 30 d after kindling. Aggressive behaviour at 21 d and 30 d after kindling was not analysed due to its scarce (total interactions per doe in 24 h: 0.02 events) and null occurrences, respectively. Then, data of the first hour after grouping at −8 d and +18 d were analysed by Bayesian inference, and the posterior distributions of the differences between group size, number of doorways and observation day were estimated. Does in P4 pens showed a higher frequency of boxing (1.63 vs. 0.50 events per doe) and chasing (1.00 vs. 0.28) than those in P2 pens (probability of relevance, ProbR = 0.87). Does in D2 pens showed a higher frequency of attacking (2.00 vs. 0.46 events per doe), chasing (0.83 vs. 0.21), and mount attempts (0.38 vs. 0.08) than those in D1 pens (ProbR 0.80-0.83). Aggressive interactions were higher at the first group formation (−8 d) than at regrouping (at +18 d) (10.5 vs. 6.25 events per doe; ProbR = 0.69). In conclusion, aggression among does was affected by group size and pen characteristics and decreased throughout the reproductive cycle. Nevertheless, studies of more reproductive cycles and collective pens will be necessary to confirm the present results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Animal Behaviour Science - Volume 194, September 2017, Pages 79-85
نویسندگان
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