Effects of season and body condition on appetite, body mass and body composition in ad libitum fed pony mares

Effects of season and body condition on appetite, body mass and body composition in ad libitum... Changes in appetite, body mass (BM), body condition score (BCS), direct (ultrasonographic) and indirect (deuterium oxide dilution technique) measures of body fat were monitored in Welsh Mountain pony mares ( n = 11, 5–19 years of age) offered ad libitum access to a complete diet (gross energy 16.9 ± 0.07 MJ/kg dry matter) for 12 weeks during summer ( n = 6; 246 ± 20 kg) and winter ( n = 5; 219 ± 21 kg). At the outset, each group comprised two thin (BCS 1–3/9), moderate (BCS 4–6/9) and obese (BCS 7–9/9) animals. For ponies that were non-obese at the outset, BM was gained more rapidly ( P = 0.001) in summer (0.8 ± 0.1 kg/day) than winter (0.6 ± 0.0 kg/day). This was associated with a seasonal increase in dry matter intake (DMI) which became maximal (summer, 4.6 ± 0.3% BM as DMI/day; winter, 3.5 ± 0.1% BM as DMI/day) during the second month. The appetite of the obese ponies was half that reported for non-obese animals in the summer and BM remained constant irrespective of season. Body ‘fatness’ increased progressively for non-obese but not obese ponies. Body fat content was exponentially associated with increasing BCS but BCSs >6 were not useful indicators of actual body fat. Endogenous circannual mechanisms to suppress winter weight gain were insufficient to prevent the development of obesity in ad libitum fed ponies. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The Veterinary Journal Elsevier

Effects of season and body condition on appetite, body mass and body composition in ad libitum fed pony mares

Loading next page...
 
/lp/elsevier/effects-of-season-and-body-condition-on-appetite-body-mass-and-body-4S1K8quzh9
Publisher
Elsevier
Copyright
Copyright © 2010 Elsevier Ltd
ISSN
1090-0233
D.O.I.
10.1016/j.tvjl.2010.11.009
Publisher site
See Article on Publisher Site

Abstract

Changes in appetite, body mass (BM), body condition score (BCS), direct (ultrasonographic) and indirect (deuterium oxide dilution technique) measures of body fat were monitored in Welsh Mountain pony mares ( n = 11, 5–19 years of age) offered ad libitum access to a complete diet (gross energy 16.9 ± 0.07 MJ/kg dry matter) for 12 weeks during summer ( n = 6; 246 ± 20 kg) and winter ( n = 5; 219 ± 21 kg). At the outset, each group comprised two thin (BCS 1–3/9), moderate (BCS 4–6/9) and obese (BCS 7–9/9) animals. For ponies that were non-obese at the outset, BM was gained more rapidly ( P = 0.001) in summer (0.8 ± 0.1 kg/day) than winter (0.6 ± 0.0 kg/day). This was associated with a seasonal increase in dry matter intake (DMI) which became maximal (summer, 4.6 ± 0.3% BM as DMI/day; winter, 3.5 ± 0.1% BM as DMI/day) during the second month. The appetite of the obese ponies was half that reported for non-obese animals in the summer and BM remained constant irrespective of season. Body ‘fatness’ increased progressively for non-obese but not obese ponies. Body fat content was exponentially associated with increasing BCS but BCSs >6 were not useful indicators of actual body fat. Endogenous circannual mechanisms to suppress winter weight gain were insufficient to prevent the development of obesity in ad libitum fed ponies.

Journal

The Veterinary JournalElsevier

Published: Dec 1, 2011

References

  • Effect of dietary restriction on body condition, composition and welfare of overweight and obese pony mares
    Dugdale, A.H.A.; Curtis, G.C.; Cripps, P.J.; Harris, P.A.; Argo, McG.C.
  • The relationship between body condition score and ultrasonic fat measurements in mares of high versus low body condition
    Gentry, L.R.; Thompson, D.L.; Gentry, G.T.; Del Vecchio, R.P.; Davis, K.A.; Del Vecchio, P.M.
  • Metabolic predisposition to laminitis in horses and ponies: obesity, insulin resistance and metabolic syndromes
    Geor, R.J.
  • Relationship between condition score, physical measurements and body fat percentage in mares
    Henneke, D.R.; Potter, G.D.; Kreider, J.L.; Yeates, B.F.
  • Links between the appetite regulating systems and the neuroendocrine hypothalamus: lessons from the sheep
    Henry, B.A.
  • Body composition of the horse
    Webb, A.I.; Weaver, B.M.Q.
  • Prediction of horse carcass composition using linear measurements
    Znamirowska, A.

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create folders to
organize your research

Export folders, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off