Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 327507
Title Individual differences in aggression and physiology in peri-pubertal breeding gilts
Author(s) Geverink, N.A.; Schouten, W.G.P.; Gort, G.; Wiegant, V.M.
Source Applied Animal Behaviour Science 77 (2002)1. - ISSN 0168-1591 - p. 43 - 52.
Department(s) Chair Ethology
Institute of Agricultural and Environmental Engineering
Biometris (WU MAT)
Human and Animal Physiology
Publication type Refereed Article in a scientific journal
Publication year 2002
Keyword(s) behavioral strategies - coping styles - plasma-catecholamine - tonic immobility - manual restraint - laying hens - pigs - stress - responses - piglets
Abstract Several recent studies on pigs have demonstrated a relationship between the degree of resistance displayed in a so-called ''backtest'' and a variety of behavioural and physiological responses in piglets and young fattening pigs. However, the discussion about the predictive power of the backtest is still going on. This study aimed at investigating the relationship between the backtest response and behaviour and physiology in peri-pubertal, i.e. nulliparous breeding gilts. During the suckling period gilts were subjected to the backtest. Piglets classified as low resisting (LR, n=36) and high resisting (HR, n=36) were selected. At 20 weeks of age they were housed in groups of six (three HR, three LR). Between 23 and 29 weeks of age, behaviour and physiology under undisturbed conditions were measured. At 26 weeks of age, LR pigs showed higher baseline salivary cortisol levels during the light period than HR pigs. However, HR and LR gilts did not differ in weight gain, aggression and heart rate response to afternoon feeding. This study indicates that when breeding gilts are kept in groups containing both HR and LR animals, aggression and heart rate reactivity under undisturbed conditions do not relate to the backtest response
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