Evaluation of the oral ¹³C-bicarbonate tracer technique for the estimation of CO₂ production and energy expenditure in dogs during rest and physical activity

TY - JOUR

T1 - Evaluation of the oral 13C-bicarbonate tracer technique for the estimation of CO2 production and energy expenditure in dogs during rest and physical activity

AU - Larsson, Caroline

AU - Junghans, Peter

AU - Tauson, Anne-Helene

PY - 2010/12

Y1 - 2010/12

N2 - For feeding of working dogs during their daily life, illness, routine jobs or sporting activities, an accurate determination of their nutritional requirements is essential to ensure their optimal health and performance. To predict the appropriate guidelines about how to feed dogs, it appears essential to determine the energy expenditure (EE) in a reliable and feasible way. In the present experiment, the non-invasive oral 13C-bicarbonate tracer technique (o13CT), i.e. collection of breath samples after oral administration of NaH13CO3, was used for the estimation of CO2 production and EE in dogs. Measurements were conducted during two days of rest, and during three days with 3 h of exercise per day.Average EE was 483 and 876 kJ kg-0.75 d-1 during rest and exercise, respectively. The o13CT seems appropriate to use as a minimal restrictive and non-invasive method to obtain reliable estimates of EE in dogs at different activity levels under near natural conditions.

AB - For feeding of working dogs during their daily life, illness, routine jobs or sporting activities, an accurate determination of their nutritional requirements is essential to ensure their optimal health and performance. To predict the appropriate guidelines about how to feed dogs, it appears essential to determine the energy expenditure (EE) in a reliable and feasible way. In the present experiment, the non-invasive oral 13C-bicarbonate tracer technique (o13CT), i.e. collection of breath samples after oral administration of NaH13CO3, was used for the estimation of CO2 production and EE in dogs. Measurements were conducted during two days of rest, and during three days with 3 h of exercise per day.Average EE was 483 and 876 kJ kg-0.75 d-1 during rest and exercise, respectively. The o13CT seems appropriate to use as a minimal restrictive and non-invasive method to obtain reliable estimates of EE in dogs at different activity levels under near natural conditions.

KW - Former LIFE faculty

KW - activity levels

KW - animals

KW - breath

KW - carbon-13

KW - dogs

KW - energy expenditure

KW - energy requirements

KW - isotope ecology

KW - non-invasive

KW - nutrition

KW - sodium bicarbonate

KW - stable isotope tracer techniques

M3 - Journal article

SN - 1025-6016

VL - 46

SP - 432

EP - 443

JO - Isotopes in Environmental and Health Studies

JF - Isotopes in Environmental and Health Studies

IS - 4

ER -