|
Records |
Links |
|
Author |
Krebs, J.R.; Clayton, N.S.; Hampton, R.R.; Shettleworth, S.J. |
|
|
Title |
Effects of photoperiod on food-storing and the hippocampus in birds |
Type |
Journal Article |
|
Year |
1995 |
Publication |
Neuroreport |
Abbreviated Journal |
Neuroreport |
|
|
Volume |
6 |
Issue |
12 |
Pages |
1701-1704 |
|
|
Keywords |
Animals; Birds; Eating/*physiology; Female; Hippocampus/*physiology; Light; Male; *Photoperiod; Seasons; Telencephalon/physiology; Time Factors |
|
|
Abstract |
Birds that store food have a relatively large hippocampus compared to non-storing species. The hippocampus shows seasonal differences in neurogenesis and volume in black-capped chikadees (Parus atricapillus) taken from the wild at different times of year. We compared hippocampal volumes in black-capped chickadees captured at the same time but differing in food-storing behaviour because of manipulations of photoperiod in the laboratory. Differences in food-storing behaviour were not accompanied by differences in the volume of the hippocampus. Hippocampal volumes also did not differ between two groups of a non-food-storing control species, house sparrows (Passer domesticus), exposed to the same conditions as the chickadees. |
|
|
Address |
Edward Grey Institute of Field Ornithology, Department of Zoology, Oxford, UK |
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
English |
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
0959-4965 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
PMID:8527745 |
Approved |
no |
|
|
Call Number |
refbase @ user @ |
Serial |
378 |
|
Permanent link to this record |
|
|
|
|
Author |
Houpt, K.A. |
|
|
Title |
Ingestive behavior |
Type |
Journal Article |
|
Year |
1990 |
Publication |
The Veterinary clinics of North America. Equine practice |
Abbreviated Journal |
Vet Clin North Am Equine Pract |
|
|
Volume |
6 |
Issue |
2 |
Pages |
319-337 |
|
|
Keywords |
Animals; Eating/*physiology; Feeding Behavior/*physiology; Horses/*physiology |
|
|
Abstract |
In summary, horses spend 60% or more of their time eating when grazing or when feed is available free choice. Grasses are their preferred food, but they supplement the grass with herbs and woody plants. Sweetened mixtures of oats and corn are the most preferred concentrate. Horses can increase or decrease the time spent eating and amount eaten to maintain caloric intake. Their intake is stimulated by drugs such as diazepam and by the presence of other horses. Horses stop eating when gastric osmolality increases; increases in plasma osmolality, protein, and glucose accompany digestion. Foals eat several times an hour and begin sampling solid food at the same time that their dam is eating. Several areas of particular importance to the equine industry have not been investigated. These areas include the effect of exercise on short- and long-term food intake and the influence of reproductive state on the feeding of mares. |
|
|
Address |
Department of Physiology, New York State College of Veterinary Medicine, Cornell University, Ithaca |
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
English |
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
0749-0739 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
PMID:2202495 |
Approved |
no |
|
|
Call Number |
refbase @ user @ |
Serial |
42 |
|
Permanent link to this record |
|
|
|
|
Author |
Shaw, E.B.; Houpt, K.A.; Holmes, D.F. |
|
|
Title |
Body temperature and behaviour of mares during the last two weeks of pregnancy |
Type |
Journal Article |
|
Year |
1988 |
Publication |
Equine veterinary journal |
Abbreviated Journal |
Equine Vet J |
|
|
Volume |
20 |
Issue |
3 |
Pages |
199-202 |
|
|
Keywords |
Animals; *Behavior, Animal; *Body Temperature; Circadian Rhythm; Eating; Female; Horses/*physiology; Labor, Obstetric/*physiology; Motor Activity; Pregnancy; Pregnancy, Animal/*physiology |
|
|
Abstract |
Average daily core body temperature and behavioural patterns of pregnant mares were studied, in search of definitive signs of parturition within 24 h of the event. Nineteen pony mares were sampled twice daily for core body temperature. A significant temperature drop, averaging 0.1 degrees C (0.2 degrees F) was observed during the day prior to parturition. Between 18.00 h and 06.00 h, during the two weeks before parturition, Thoroughbred and Standardbred mares (n = 52) spent an average 66.8 per cent of their time standing, 27.0 per cent eating, 4.9 per cent lying in sternal recumbency, 1.0 per cent lying in lateral recumbency, and 0.3 per cent walking. On the night before parturition, mares spent significantly less time lying in sternal recumbency than on previous nights and on the night of parturition all behaviour patterns except eating were significantly different from the nights of the two weeks before parturition. There was an increase in walking (5.3 per cent), lying in sternal recumbency (8 per cent) and lying in lateral recumbency (5.3 per cent) whereas standing (53.3 per cent) was decreased. In 58 observed pregnancies, 54 mares (97 per cent) foaled in a recumbent position and 50 mares (86 per cent) foaled between 18.00 h and 06.00 h. |
|
|
Address |
Department of Physiology, New York State College of Veterinary Medicine, Cornell University, Ithaca 14853 |
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
English |
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
0425-1644 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
PMID:3402416 |
Approved |
no |
|
|
Call Number |
refbase @ user @ |
Serial |
46 |
|
Permanent link to this record |
|
|
|
|
Author |
Houpt, K.A.; Perry, P.J.; Hintz, H.F.; Houpt, T.R. |
|
|
Title |
Effect of meal frequency on fluid balance and behavior of ponies |
Type |
Journal Article |
|
Year |
1988 |
Publication |
Physiology & behavior |
Abbreviated Journal |
Physiol. Behav. |
|
|
Volume |
42 |
Issue |
5 |
Pages |
401-407 |
|
|
Keywords |
Animals; Behavior, Animal/*physiology; Blood Proteins/analysis; *Eating; Female; Hematocrit; Horses/blood/*physiology; Osmolar Concentration; *Water-Electrolyte Balance |
|
|
Abstract |
Twelve ponies were fed their total daily ration either as one large meal or divided into six small meals. Pre- and post-feeding behavior was recorded six times a day. Blood samples were taken for 30 min before and two hr after the meal. Plasma protein increased from 7.0 to a peak of 7.3 g/dl with small meals and from 7.3 to 8.1 g/dl with large meals, and returned to pre-feeding levels by 90 min post-feeding. Hematocrit rose from 33.3 to 34.1% with small meals and from 33.0 to 36.0% with large meals. These rapid and short-lived increases indicate a decrease in plasma volume. Plasma osmolality rose with feeding from 283 to 285 mosmoles/kg with small meals and from 281 to 288 mosmoles/kg with large meals. Water availability had no significant effect on blood changes. Digestibility and rate of passage were measured with chromic oxide, but there were no differences. Vocalizing (neighing) and walking occurred more often before than after feeding, while eating bedding and engaging in other oral behaviors were more frequent after feeding. |
|
|
Address |
Department of Physiology, New York State College of Veterinary Medicine, Cornell University, Ithaca 14853 |
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
English |
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
0031-9384 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
PMID:3393599 |
Approved |
no |
|
|
Call Number |
refbase @ user @ |
Serial |
47 |
|
Permanent link to this record |
|
|
|
|
Author |
Youket, R.J.; Carnevale, J.M.; Houpt, K.A.; Houpt, T.R. |
|
|
Title |
Humoral, hormonal and behavioral correlates of feeding in ponies: the effects of meal frequency |
Type |
Journal Article |
|
Year |
1985 |
Publication |
Journal of animal science |
Abbreviated Journal |
J. Anim Sci. |
|
|
Volume |
61 |
Issue |
5 |
Pages |
1103-1110 |
|
|
Keywords |
Animals; Behavior, Animal/physiology; Blood Glucose/*analysis; Blood Proteins/*analysis; Blood Volume; *Eating; Feeding Behavior/physiology; Female; Heart Rate; Horses/blood/*physiology; Male; Osmolar Concentration; Osmotic Pressure; Triiodothyronine/*blood |
|
|
Abstract |
The effect of meal frequency on body fluid, glucose, triiodothyronine (T3), heart rate and behavior was measured in 10 ponies. A simple reversal design was used in which each pony received one meal/day (1X) for 2 wk and six meals/day (6X) for 2 wk. The total intake/day was held constant. Feeding was followed by a rise in plasma levels of glucose, T3, protein and osmolality. One large meal was followed by significantly greater changes in all of the variables than was a meal one-sixth the size. Plasma T3 rose from 41 +/- 5 (SE) ng/liter before feeding to 43 +/- 5 ng/liter following a small meal, but rose significantly higher, from 39 +/- 4 to 60 +/- 10 ng/liter, following a large meal. Glucose rose from 84 +/- 3 to 109 +/- 7 mg/dl following a small meal and rose significantly higher, from 83 +/- 3 to 154 +/- 11 mg/dl, after a large meal. Plasma protein rose from 6.55 +/- .14 to 6.62 +/- .16 g/dl following a small meal and from 6.45 +/- .14 to 6.99 +/- .11 g/dl following a large meal. Osmolality rose from 227 +/- 1 mosmol/liter before to 279 +/- 1 mosmol/liter following a small meal and significantly higher from 278 +/- 2 to 285 +/- 1 mosnol/liter following a large meal. Heart rate rose from 42 beats/min in the absence of feed to 50 beats/min when food was visible to the ponies and did not rise higher when eating began. There were no significant differences in the cardiac response to one large meal and that to a small meal.(ABSTRACT TRUNCATED AT 250 WORDS) |
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
English |
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
0021-8812 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
PMID:4077755 |
Approved |
no |
|
|
Call Number |
refbase @ user @ |
Serial |
51 |
|
Permanent link to this record |
|
|
|
|
Author |
Houpt, T.R. |
|
|
Title |
The physiological determination of meal size in pigs |
Type |
Journal Article |
|
Year |
1985 |
Publication |
The Proceedings of the Nutrition Society |
Abbreviated Journal |
Proc Nutr Soc |
|
|
Volume |
44 |
Issue |
2 |
Pages |
323-330 |
|
|
Keywords |
Animals; Appetite/physiology; Drinking; Duodenum/physiology; *Eating; Energy Intake; Food; Horses/physiology; Milk; Osmolar Concentration; Receptors, Cell Surface/physiology; Receptors, Cholecystokinin; Swine/*physiology; Time Factors |
|
|
Abstract |
|
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
English |
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
0029-6651 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
PMID:2996010 |
Approved |
no |
|
|
Call Number |
refbase @ user @ |
Serial |
53 |
|
Permanent link to this record |
|
|
|
|
Author |
Francis-Smith, K.; Wood-Gush, D.G.M. |
|
|
Title |
Copropgagia as seen in thoroughbred foals |
Type |
Journal Article |
|
Year |
1977 |
Publication |
Equine veterinary journal |
Abbreviated Journal |
Equine Vet J |
|
|
Volume |
9 |
Issue |
3 |
Pages |
155-157 |
|
|
Keywords |
animal; article; coprophagy; defecation; eating; female; horse; horse disease; human; mastication |
|
|
Abstract |
Four Thoroughbred foals were seen to quickly eat part of the faeces deposited by their own dams on some 40 per cent of the mare-defaecating occasions observed between the second and fifth week after birth. They did not do it before or after this period. This behaviour was thought to be a feeding pattern which formed a normal part of the foal's development. |
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
no |
|
|
Call Number |
|
Serial |
1090 |
|
Permanent link to this record |