The effects of group size/stocking density on weanling pig performance and behavior
Contributor(s):: Spicer, H. M., Aherne, F. X.
77 Yorkshire X Landrace pigs from 10 litters were weaned at 28 days of age and housed in group sizes of 1, 2 or 4 pigs per pen. For the 28-day experimental period, body weight gain and voluntary feed consumption were significantly lower for pigs housed in groups of 4 than for other pigs. The...
The influence of different social and physical environments on the incidence of lactational oestrus in sows
Contributor(s):: Stolba, A., Henderson, R., Wechsler, B.
The behaviour of sows and their litters housed in different environments of increasing social and physical complexity was observed. Lactational oestrus occurred only in the most complex housing system (4 sows grouped, full boar contact, four indoor pens with four connected outside yards). The...
The relationship between housing and social rank on cortisol, beta -endorphin and dynorphin (1-13) secretion in sows
Contributor(s):: Zanella, A. J., Brunner, P., Unshelm, J., Mendl, M. T., Broom, D. M.
Endogenous opioids and glucocorticoids may be useful welfare indicators in pigs. Measures of plasma cortisol were carried out in plasma samples collected hourly, from 8:00 to 17:00 h from High Ranking (HR) (n = 5) Middle Ranking (MR) (n = 7) and Low Ranking (LR) (n = 4) group housed sows and from...
The sexual motivation of boars housed adjacent to ovariectomised gilts did not affect the efficiency of detecting hormonally induced oestrus using the back pressure test
Contributor(s):: Turner, A. I., Hemsworth, P. H., Tilbrook, A. J.
This study tested the hypothesis that the efficiency of detecting oestrus in gilts using the back pressure test will be lower when gilts are housed adjacent to a boar of high sexual motivation than when they are housed adjacent to a boar of low sexual motivation. The experiment was a 2 x 2 Latin...
An examination of behavioral, immunological and productive traits in four management systems for sows and piglets
Contributor(s):: McGlone, J. J., Blecha, F.
Forty-one sows and litters were utilized in a multi-disciplinary evaluation of four common commercial housing systems for sows and piglets: (1) a standard crate (SC); (2) a modified or turnaround crate (TC); (3) a pen with an indoor and outdoor area (OP); (4) a straw-bedded hut on a lot (HL). HL...
Behaviour of groups of weaner pigs in three different housing systems
Contributor(s):: McKinnon, A. J., Edwards, S. A., Stephens, D. B.
Comparison of the behaviour of captive white-faced capuchin monkeys ( Cebus capucinus ) in the presence of four kinds of deep litter
Contributor(s):: Ludes, E., Anderson, J. R.
Captive white-faced capuchin monkeys (Cebus capucinus) were placed in a large indoor room without or with deep litter made of wood chips, dried ground maize cob, wood wool or garden peat. Feed was scattered on the bare floor or on the litter and the behaviour of the monkeys was observed. When...
Directing the teat-seeking behavior of newborn piglets: Use of sloped floors and curved corners in the design of farrowing units
Contributor(s):: Parfet, K. A. R., Gonyou, H. W.
The teat-seeking behaviour of newborn piglets was evaluated in farrowing crates modified to incorporate sloped floors and curved corners in a 2 x 2 factorial arrangement. Rear corners of the creep area were square or curved and floors were level or sloped. Floor slopes were designed to move pigs...
Early exposure to females affects interactions between male White Leghorn chickens
Contributor(s):: Leonard, M. L., Zanette, L., Fairfull, W.
To examine the effect of rearing condition on White Leghorn chickens interactions were observed between pairs comprising one male reared in an all-male group (single-sex) and one male reared with females (mixed-sex). Two males one from each treatment, were placed in a neutral arena with either a...
Effect of individual housing on the feeding behaviour of previously group housed growing pigs
Contributor(s):: Nielsen, B. L., Lawrence, A. B., Whittemore, C. T.
30 male crossbred pigs (body weight 29.3 kg) were housed in groups of 10 for 14 days (period 1) with ad libitum access to 1 computerized single-space feeder per group. Four pigs were chosen from each group; 2 pigs showing a high feeding frequency (H pigs: 18.9 visits/day) and 2 showing a low...
Effect of partitioning pens on aggressive behavior of pigs regrouped at weaning
Contributor(s):: Olesen, L. S., Nygaard, C. M., Friend, T. H., Bushong, D., Knabe, D. A., Vestergaard, K. S., Vaughan, R. K.
In 2 trials, pigs were weaned at 28.5 days of age, stratified by body weight and assigned to groups of 7 on the condition that no more than 2 pigs in any group were from the same litter. Each group was housed in nursery pens which contained or did not contain (control) a partition. The partition,...
Environmental design and its evaluation for intensively housed animals
Contributor(s):: McBride, G., Craig, J. V.
It is argued that applied ethology has emerged as an empirical science with a limited base of theory. Two models are presented and used to examine problems of evaluation of husbandry design. The first model, of the process of adaptation to environments, predicts that long-term strain, learned...
Environmentally enriched dog housing
Contributor(s):: Loveridge, G. G.
Factors affecting cubicle utilisation by dairy cattle using stall frame and bedding manipulation experiments
Contributor(s):: O'Connell, J. M., Giller, P. S., Meaney, W. J.
Earlier studies have shown that cattle preferentially utilised Dutch Comfort (DC) cubicles more frequently than Newton Rigg (NR) cubicles. Designs differ in position of barwork with the Dutch Comfort providing greater lateral space sharing than the older Newton Rigg cubicles. To further...
Influence of the presence of 3-day-old chickens on the behaviour of meat and egg-type posthatch counterparts
Contributor(s):: Mahagna, M., Nir, I., Nitsan, Z.
The effect of 3-day-old 'guides' of broiler or White Leghorn type chickens on posthatch behaviour (eating, drinking, standing and sitting), growth rate and livability was measured in broiler and Leghorn type chickens. Four trials were conducted. One trial was in cages and 3 were on a litter...
Interpreting the behaviour of calves in an open-field test: a factor analysis
Contributor(s):: Passille, A. M. de, Rushen, J., Martin, F.
16 female Holstein calves were removed from their pen, which allowed limited visual and tactile contact with other calves, and placed in an arena which allowed no visual contact with other calves for a period of 15 min (open-field test). The heart rate responses to the open-field test were...
Nest choice of laying hens: the effect of nest shape and quantity of straw
Contributor(s):: Norgaard-Nielsen, G.
Preference by sows for a partially enclosed farrowing crate
Contributor(s):: Phillips, P. A., Fraser, D., Thompson, B. K.
A preference testing apparatus was designed to give sows continuous access to 4 farrowing crates with different degrees of visual enclosure. A 'fully enclosed' crate had solid black panels on the sides and top of the crate, a 'solid-sided' crate had the side panels only and an 'open crate' had no...
Preference of turkey hens for nest-boxes of different levels of interior illumination
Contributor(s):: Millam, J. R.
Nicholas large, white turkey hens were provided with nest-boxes of different levels of interior illumination to determine whether box light intensity influenced where eggs were laid, egg production, frequency of nest-visits or time spent nesting. The results indicate that hens prefer a relatively...
Preferences of hens for shape and size of roosts
Contributor(s):: Muiruri, H. K., Harrison, P. C., Gonyou, H. W.
Two experiments were conducted to determine the shape and size of roost preferred by broiler breeder hens. The effect of roost position upon roosting frequency within the experimental chamber was also evaluated. Roosting behaviour was determined from time-lapse videotapes. In Experiment 1, hens...