Calf-directed affiliative behaviour of dairy cows in two types of cow-calf contact systems
نویسندگان
چکیده
There is an interest in alternative rearing systems that allow for prolonged cow-calf contact (CCC). Yet, a better understanding of cows’ affiliative behaviour those needed. We evaluated the effect type CCC on calf-directed dairy cows. Cows were permitted to have either: i) partial (PC) with their calf; calves housed pen adjacent cow area allowing limited physical initiative dam but no suckling (n = 18), or ii) full (FC) calf including suckling; together dams free stall barn 20). Proximity and between her own recorded 0 48 h postpartum individual maternity pen, from 1 5 weeks barn. Data analysed generalized linear models, except excess zero-valued data where Kruskal Wallis test was used. Principal component analysis (PCA) carried out identify consistency After parturition, latency onset allogrooming did not differ among treatments (mean±SE, 8 ± 3 min, P 0.39). Throughout first postpartum, treatment differences found percentage observed time spent (PC: 7.7 1.3%, FC: 9.5 1.5%), standing proximity (?1 m radius) 22.9 2.1%, 21.2 2.1%), lying 30.5 4.3%, 32.5 3.2%) (P > 0.10). However, following weeks, relative PC cows, FC cows more average close (10.9 0.1% versus 3.1 0.4%, < 0.001), (2.1 0.2% 0.5 0.1%, 0.001). PCA revealed four components (explaining 76% variance). Lying far loaded (positive, negative, respectively) onto 1, whereas negatively 2. Standing 3, 1–2 near 4. Our results indicate that, comparison FC, decreases expression behaviours parturition. The set-up calf’s accessibility, could initiate as well. Nonetheless, large inter-individual lacked consistency. • Type (CCC) affects dams. Full increased compared CCC. Large present. Behaviour predict
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ژورنال
عنوان ژورنال: Applied Animal Behaviour Science
سال: 2021
ISSN: ['0168-1591', '1872-9045']
DOI: https://doi.org/10.1016/j.applanim.2021.105461