The Influence of Weather on Food Intake, Insect Prey Selection and Feeding Behaviour in Willow Grouse Chicks in Northern Norway

1982 ◽  
Vol 13 (3) ◽  
pp. 176 ◽  
Author(s):  
Kjell Einar Erikstad ◽  
Tor K. Spidso
Keyword(s):  
Food Intake ◽  
Feeding Behaviour ◽  
Prey Selection ◽  
Northern Norway ◽  
Insect Prey ◽  
Willow Grouse

Enhanced food intake after stimulation of hypothalamic P2Y1receptors in rats: modulation of feeding behaviour by extracellular nucleotides

2006 ◽  
Vol 24 (7) ◽  
pp. 2049-2056 ◽  
Author(s):  
Holger Kittner ◽  
Heike Franke ◽  
Julia I. Harsch ◽  
Ibrahim M. El-Ashmawy ◽  
Bertholt Seidel ◽  
...  
Keyword(s):  
Food Intake ◽  
Feeding Behaviour ◽  
Extracellular Nucleotides ◽  
Stimulation Of

Effect of season and dietary fibre on feeding behaviour of lactating sows in a tropical climate

2003 ◽  
Vol 77 (3) ◽  
pp. 429-437 ◽  
Author(s):  
D. Renaudeau ◽  
J.-L. Weisbecker ◽  
J. Noblet
Keyword(s):  
Food Intake ◽  
Dietary Fibre ◽  
Feeding Behaviour ◽  
Control Diet ◽  
Warm Season ◽  
Tropical Climate ◽  
Large White ◽  
Significant Difference ◽  
Lactating Sows ◽  
Hot Season

AbstractTwenty-seven multiparous Large White sows were used to determine the effect of season in a tropical climate and dietary fibre on their feeding behaviour during lactation. The experiment was conducted in Guadeloupe (French West Indies, latitude 16°N, longitude 61°W) between October 1999 and January 2001; climatic conditions in the farrowing room were equivalent to outdoor conditions. Two seasons were determined a posteriori from climatic criteria recorded continuously in the farrowing room. During the warm season, ambient temperature and relative humidity averaged 25°C and 0·868, respectively. The corresponding values for the hot season were 27·5°C and 0·835. Experimental diets offered during lactation were a control diet (C; 140 g neutral-detergent fibre (NDF) per kg) and a high fibre diet (HF; 200 g NDF per kg). Sows were offered food ad libitum between the 6th and the 27th day of lactation. Daily food intake between day 6 and day 27 decreased during the hot season (P < 0·001; 3226 v. 5571 g/d during the warm season). This was achieved by a reduction of both meal size (P < 0·05; 460 v. 718 g per meal) and ingestion and consumption time (P < 0·01; -11·1 and -15·3 min/day, respectively) whereas the number of meals remained constant (8·4 meals per day on average). During warm season, hourly food intake peaked twice daily near sunrise and sunset. During the hot season, peaks were attenuated and food intake was reduced during the hotter periods of the day and increased during the fresher period of the day, especially in early morning. As a result the diurnal partition of food intake was significantly affected by season; proportionately 0·62 and 0·47 of total food intake occurred during the day in warm and in hot seasons, respectively. Standing duration averaged 138 min/ day with no significant difference between seasons. Feeding behaviour criteria were not influenced by diet composition. In conclusion, the season in a humid tropical climate significantly affects the feeding behaviour of lactating sows.

A comparison of the effects of body condition and short-term food restriction on the feeding behaviour of sheep

1996 ◽  
Vol 1996 ◽  
pp. 174-174
Author(s):  
A.M. Sibbald
Keyword(s):  
Food Intake ◽  
Body Condition ◽  
Feeding Behaviour ◽  
Food Restriction ◽  
Term Effect ◽  
Short Term ◽  
Daily Food ◽  
Long Term Effect ◽  
Single Meal

Voluntary food intake is generally inversely related to body condition or fatness in mature sheep (Foot, 1972). Since the intake of pelleted diets by housed sheep consists of a number of discrete feeding bouts or 'meals' (e.g. Bermudez et al., 1989), the relatively long-term effect of body condition on intake will be achieved through changes in feeding behaviour at the level of a single meal. The aim of this experiment was to compare the effects of body condition and short-term food restriction on meal patterns in sheep, to investigate the mechanism by which body condition influences daily food intake.

Short-term feeding behaviour of dairy cows relative to food composition and stage of lactation

1998 ◽  
Vol 1998 ◽  
pp. 25-25
Author(s):  
B.L. Nielsen ◽  
N.C. Friggens ◽  
I. Kyriazakis ◽  
B.J. Tolkamp ◽  
G.C. Emmans
Keyword(s):  
Food Intake ◽  
Dairy Cows ◽  
Feeding Behaviour ◽  
Food Composition ◽  
Short Term ◽  
Physiological Mechanisms ◽  
Stage Of Lactation ◽  
Behavioural Characteristics ◽  
Major Factors ◽  
Voluntary Food Intake

Short-term feeding behaviour (STFB) has been used to elucidate the physiological mechanisms which control eating. It has been proposed as a means by which to predict voluntary food intake, and could be used to quantify behavioural characteristics of the cow. The first step in assessing the usefulness of STFB for these purposes is to identify the major factors which influence STFB. The aim of the study reported here was to evaluate, in dairy cows, the differences in STFB resulting from two different foods, the effect of stage of lactation on STFB, and the effect on STFB of changing from one food to another.

Consequences of variation in feeding behaviour for the probability of cows starting a meal as estimated from pooled data

2003 ◽  
Vol 2003 ◽  
pp. 7-7
Author(s):  
M. P. Yeates ◽  
B. J. Tolkamp ◽  
I. Kyriazakis
Keyword(s):  
Food Intake ◽  
Recent Work ◽  
Feeding Behaviour ◽  
Biological Significance ◽  
Simulation Models ◽  
Farm Animals ◽  
Short Term ◽  
Pooled Data ◽  
Intake Regulation ◽  
Insight Into

The analysis of short-term feeding behaviour may give insights into how food intake is regulated in farm animals. Food intake is often recorded in terms of feeding events, e.g. visits to feeders, which can be clustered into meals. This enables calculation of the probability of cows starting a meal in relation to time since the last meal, which is thought to give insight into intake regulation. Starting probabilities are often calculated after data have been pooled, e.g. across day and night or across individuals. Recent work suggested that such pooling might have strongly affected previously published conclusions. We therefore constructed simulation models to investigate how such pooling affects interpretation of feeding behaviour and consequently the biological significance attached to results.

The short term feeding behaviour of pigs given access to foods differing in bulk content

2002 ◽  
Vol 2002 ◽  
pp. 27-27
Author(s):  
E. C. Whittemore ◽  
I. Kyriazakis ◽  
G.C. Emmans ◽  
B.J. Tolkamp ◽  
C. A. Morgan ◽  
...  
Keyword(s):  
Food Intake ◽  
Feeding Behaviour ◽  
Daily Intake ◽  
Growing Pigs ◽  
Feeding Time ◽  
Short Term ◽  
Control Food ◽  
Bulk Content ◽  
High Bulk ◽  
Different Levels

We need to improve our understanding of the factors that are important for the control of food intake on high bulk foods. The study of short term feeding behaviour (STFB) may help to do this. The objective of this experiment was to study the effects of giving foods differing in bulk content on the STFB of growing pigs. It was expected that the foods would result in different levels of daily intake and that this would be reflected as differences in STFB between the foods. Two hypotheses were developed based on ideas about the way in which a physical constraint to intake could arise. H1; there would be less diurnal variation in feeding on high bulk foods that limit intake. H2; feeding patterns on bulky foods would be less flexible than those on a control food when feeding time is limited by reducing time of access to the feeder.

Effect of diurnally fluctuating high ambient temperatures on performance and feeding behaviour of multiparous lactating sows

2000 ◽  
Vol 71 (3) ◽  
pp. 571-575 ◽  
Author(s):  
N. Quiniou ◽  
D. Renaudeau ◽  
S. Dubois ◽  
J. Noblet
Keyword(s):  
Food Intake ◽  
Milk Production ◽  
Feeding Behaviour ◽  
Post Partum ◽  
Lactation Performance ◽  
Large White ◽  
Ambient Temperatures ◽  
Total Food Intake ◽  
Daily Food ◽  
Ad Libitum

AbstractForty-two multiparous Large White sows were used to investigate the effect of diurnally fluctuating temperature (T) on lactation performance and feeding behaviour. The animals were allocated to one of the four thermic treatments: constant T at 25°C (25C) and 29°C (29C) or equal-mean diurnal cyclic T varying from 21 to 29°C (25V) and from 25 to 33°C (29V). Photoperiod was fixed to 14 h of light. The sows were given food ad libitum between the 7th and the 19th day post partům. Lactation performance was measured for all sows whereas the feeding behaviour was recorded only on 28 sows. The ad libitum food intake was comparable at 25C and 25V (6•31 kg/day) as were milk production and body reserves mobilization. In contrast, food intake at 29V was higher than at 29C (4•53 v. 3•48 kg/day) with no difference in milk production between the two treatments. The increased daily food intake at 29V resulted from higher intakes over the coolest periods of the day and especially during the dark period. Neither meal size nor daily number of meals were significantly affected by T. Feeding behaviour was mainly diurnal but with differences between treatments: 0•90 of total food intake at 29C v. 0•78 at the other three T It appears that the effects of diurnally fluctuating T on lactation performance of sows depend on the mean level of T

The flexibility of feeding patterns in individually housed pigs

2000 ◽  
Vol 70 (3) ◽  
pp. 457-469 ◽  
Author(s):  
H. L. I. Bornett ◽  
C. A. Morgan ◽  
A. B. Lawrence ◽  
J. Mann
Keyword(s):  
Food Intake ◽  
Feeding Behaviour ◽  
Live Weight ◽  
Feeding Pattern ◽  
Time Budgets ◽  
Feeding Patterns ◽  
Large White ◽  
Period 2 ◽  
Access To Food ◽  
The Impact

AbstractGroup-housed pigs may be prevented from expressing their desired feeding pattern by more dominant individuals in the group. Indeed, when compared with individually housed pigs, group housed pigs eat less frequent, but larger meals. Therefore, it would be advantageous for pigs to have flexible feeding patterns in order to decrease the impact of group housing. The aim of this study was to assess the flexibility of feeding patterns by restricting the time of access to food of pigs previously given food ad libitum and then returning them to 24-h access. Thirty-two Large White x Landrace pigs were used in an experiment of two blocks (16 pigs per block) each comprising three, 2-week periods. In each block; during period 1, all pigs were allowed 24-h access to food after which, in period 2, eight of the pigs had access to the feeder restricted between 11:00 and 13:00 h of each day. The remaining eight pigs continued on 24-h access to food and acted as controls. In period 3, all pigs were again returned to 24-h access to food. Daily feeding pattern and food intake were recorded throughout. Behavioural observations in the form of scan samples were made and pigs were weighed twice a week. In period 2 the restricted pigs had fewer visits to the feeder per day, 34·0 v. 70·1 (P < 0·001); of a longer duration, 98·3 v. 64·5 s (P < 0·01); with a higher food intake per visit, 64·9 v. 33·3 g (P < 0·001) than the control pigs. Daily food intake and live-weight gain were lower (P < 0·001) for the restricted pigs in period 2 than for the control pigs. Restricted pigs spent more time rooting (P < 0·05), and less time sleeping (P < 0·05) than the control pigs in period 2. In addition, there was a trend for pigs to spend more time alert in the observation session prior to access to food in the second period when they were restricted and they made attempts to gain access to the feeders in this session. An indication of flexibility was gained by comparing feeding behaviour and time budgets between periods 1 and 3. The pigs that experienced a period of restricted feeding either resumed their previous behaviour or showed the same trend as the controls. In periods 1 and 3 daily feeder visits were 66·2 and 68·1 for control pigs, and 65·6 and 67·1 for restricted pigs. Mean durations of visits were 79·3 and 47·5 s, and 74·4 and 61·7 s respectively. It was concluded that feeding behaviour was flexible and time budgets were resilient across periods.

The effect of beak trimming on food intake, feeding behaviour and body weight in adult hens

1982 ◽  
Vol 8 (1-2) ◽  
pp. 147-159 ◽  
Author(s):  
M.J. Gentle ◽  
B.O. Hughes ◽  
R.C. Hubrecht
Keyword(s):  
Body Weight ◽  
Food Intake ◽  
Feeding Behaviour ◽  
Beak Trimming
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