Three different coping styles in police dogs exposed to a short-term challenge
Contributor(s):: Horvath, Z., Igyarto, B. Z., Magyar, A., Miklosi, A.
Timing and presence of an attachment person affect sensitivity of aggression tests in shelter dogs
Contributor(s):: Kis, A., Klausz, B., Persa, E., Miklosi, A., Gacsi, M.
Evidence of a limited role for prolactin in the preparturient activity of confined gilts
Contributor(s):: Rushen, J., Robert, S., Farmer, C.
To investigate the role of peripheral prolactin in stimulating the preparturient activity of pigs, 12 cross-bred gilts housed in standard farrowing crates either received orally 10 mg of bromocriptine three times per day from day 110 of gestation or served as controls. Jugular blood samples were...
Perception of time duration by domestic hens
Contributor(s):: Taylor, P. E., Haskell, M., Appleby, M. C., Waran, N. K.
This experiment investigated the ability of the domestic hen to predict a time interval of several minutes when given a reliable signal. This was achieved using the peak procedure method, an extension of a fixed interval (FI) schedule that gives partial reinforcement to identify temporal...
Stereotyped pecking after feeding by restricted-fed fowls is influenced by meal size
Contributor(s):: Savory, C. J., Mann, J. S.
Growing broiler breeder chickens, fed routinely according to a programme of chronic food restriction, typically show increased pacing before feeding time and increased drinking and pecking at non-food objects afterwards. Expression of this behaviour is often stereotyped in form. In 2 experiments...
The behaviour of dairy cows in an automatic milking system where selection for milking takes place in the milking stalls
Contributor(s):: Stefanowska, J., Ipema, A. H., Hendriks, M. M. W. B.
To reduce the cost and simplify the operation of an automatic milking system (AMS) for dairy farmers, the selection stall was removed and the selection process transferred to the milking stalls. The behaviour of 18 cows in study 1 and 24 in study 2 was investigated. In study 1, 18 cows had free...
The effect of training schedule on learned tasks in yearling horses
Contributor(s):: Kusunose, R., Yamanobe, A.
12 yearlings (20-22-months-old) were divided into 2 groups and subjected to 2 different training schedules: (a) 30 min of training daily (the daily trained group); and (b) 30 min of training for 4 days, followed by a 3-day rest (the intermittently trained group), in order to compare the effect of...
Day-time time budgets of pregnant mares housed in tie stalls: a comparison of draft versus light mares
Contributor(s):: Flannigan, G., Stookey, J. M.
Day-time (08.30-05.30 h) time budgets were generated from 55 light and 55 draft late pregnancy mares housed in tie stalls from 10 pregnant mares' urine (PMU) farms using continuous video recording. Equal numbers of light and draft mares were filmed on each farm during the months of February and...
Reintroduction of takhi, Equus ferus przewalskii , to Hustai National Park, Mongolia: time budget and synchrony of activity pre- and post-release
Contributor(s):: Boyd, L., Bandi, N.
A harem of takhi (Equus ferus przewalskii) was observed during introduction to the Hustain Nuruu Steppe Reserve of Mongolia between 1992 and 1996. The goals were to examine whether the harem exhibited significant behavioural synchrony, whether release had an effect on time budget, and what the...
The effect of irregular feeding times on the behaviour and growth of dairy calves
Contributor(s):: Johannesson, T., Ladewig, J.
The objective of this study was to examine the effects of predictable vs. unpredictable management routines on the behaviour, production and health of dairy calves. Three different feeding schedules for milk-fed dairy calves (Holstein-Friesian) were compared. All calves received milk twice a day,...
Effects of dog-appeasing pheromones on anxiety and fear in puppies during training and on long-term socialization
Contributor(s):: Denenberg, S., Landsberg, G. M.
Discrimination between shepherds by lambs reared under artificial conditions
Contributor(s):: Boivin, X., Nowak, R., Despres, G., Tournadre, H., Le Neindre, P.
Effects of imprint training procedure at birth on the reactions of foals at age six months
Contributor(s):: Williams, J. L., Friend, T. H., Collins, M. N., Toscano, M. J., Sisto-Burt, A., Nevill, C. H.
A note on changes in ingestive behaviour of sheep following shearing
Contributor(s):: Arnold, G. W.
The grazing behaviour and herbage intake of sheep grazing at 4 stocking rates were recorded before and after shearing in winter. Following shearing, grazing time was reduced but intake of OM/h increased at all stocking rates even though the amount of feed available was very low at the highest...
Factors which influence parturition in the mare and development of the foal
Contributor(s):: Campitelli, S., Carenzi, C., Verga, M.
127 foals born to 127 mares were studied. Mares aged 5, 6-11 and 12 yr gave birth to foals with birth weights of 42.65+or-6.175, 51.07+or-7.031 and 46.05+or-8.816 kg resp. and foetal membrane weights of 5.45+or-1.000, 6.27+or-1.191 and 6.37+or-1.104 kg; differences between age groups were...
Behavior associated with parturition in the domestic goat
Contributor(s):: Lickliter, R. E.
The behaviour of does during labour, birth and the post-partum period and the behaviour of kids during and after birth are described in goats under confined but undisturbed conditions. Most females (76
Time budget and 24-h temporal rest-activity patterns of captive red deer hinds
Contributor(s):: Pepin, D., Renaud, P. C., Dumont, B., Decuq, F.
The time budget and rest-activity patterns of three radio-collared red deer hinds were studied in a 1-ha enclosure for 5 consecutive days in winter, spring and summer 2001. Activity counts recorded over 5-min intervals by the storage-telemetry-system ETHOSYSReg. were used to separate active from...
The influence of conditions at the time of mating on the sexual behaviour of male and female pigs
Contributor(s):: Jongman, E. C., Hemsworth, P. H., Galloway, D. B.
The sexual behaviour of 6-month-old boars and gilts mating in the boar's accommodation pen was compared with that of boars and gilts mating in a mating system called the Detection Mating Area (DMA), in which the boars are housed in individual stalls around a large central arena which is used for...
The influence of social hierarchy on the time budget of cows and their visits to an automatic milking system
Contributor(s):: Ketelaar-de Lauwere, C. C., Devir, S., Metz, J. H. M.
The effects of social dominance on dairy cows' (crossbred Holstein-Friesian; n = 30) visits to an automatic milking system (AMS) and their daily activity pattern was studied. Cows were fed on concentrate and milked in the AMS, which consisted of 2 selection units (sending cows for milking or back...
A note on the relationship between time spent in turnout and behaviour during turnout in horses ( Equus caballus )
Contributor(s):: Chaya, L., Cowan, E., McGuire, B.
We examined if time spent in turnout influenced behaviour during turnout for horses maintained in stalls and given either 2 h/week (n=7) or 12 h/week (n=7) of turnout. Horses turned out for 2 h/week were more likely than those turned out for 12 h/week to trot, canter, and buck. Frequency of...