Estimation of energy expenditure using the oral 13C‐bicarbonate technique in privately owned adult and senior dogs of three different body sizes

小猎犬 动物科学 能源消耗 显著性差异 医学 化学 内科学 生物
作者
Caroline Marcussen,Ea Meng Jørgensen,Nickie Lemire‐Dilling,Anne‐Helene Tauson
出处
期刊:Journal of Animal Physiology and Animal Nutrition [Wiley]
卷期号:106 (2): 335-344 被引量:2
标识
DOI:10.1111/jpn.13572
摘要

Knowledge about energy requirements (ER) of dogs is important in order to provide dogs with an appropriate energy supply. In this study, the oral 13 C-bicarbonate technique (o13 CBT) was used to estimate energy expenditure (EE) in 50 privately owned dogs of different body sizes (small: Danish-Swedish Farmdog (DSF, n = 16), medium: Beagle (n = 15), large: Labrador Retriever (n = 19)), of different ages (adult: 2-7 years (n = 33), senior: ≥8 years (n = 17)). The aim was to evaluate the feasibility of the method in the field and to get more information about ER of dogs. All dogs were measured twice, on two separate days under standardized, resting conditions. The dogs were fasted overnight prior to measurements, which were carried out in home environment. Only measurements of dogs resting calmly were included in the statistical analyses. No significant difference (p > 0.05) in EE was found between days of measurements. The EE measured in Labrador Retrievers (405 kJ (97 kcal)/kg BW0.75 /day) was significantly lower (p < 0.001) than of Beagles (530 kJ (127 kcal)/kg BW0.75 /day) and DSF (497 kJ (119 kcal)/kg BW0.75 /day), the difference between Beagles and DSF being non-significant. Senior dogs had significantly lower (p < 0.001) EE values than adult dogs with least square means (LSM) of 441 kJ (105 kcal)/kg BW0.75 /day and 513 kJ (123 kcal)/kg BW0.75 /day respectively. Analysed within breeds, EE of senior Labrador Retrievers (370 kJ (88 kcal)/kg BW0.75 /day)) was significantly lower (p < 0.01) than adults (439 kJ (105 kcal)/kg BW0.75 /day), as well as in DSF (453 kJ (108 kcal)/kg BW0.75 /day and 541 kJ (129 kcal)/kg BW0.75 /day for senior and adult dogs respectively). However, the EE was not significantly different (p > 0.05) between adult (548 kJ (131 kcal)/kg BW0.75 /day) and senior (499 kJ (119 kcal)/kg BW0.75 /day) Beagles. This study suggests that when measured under standardized resting conditions, the o13 CBT can provide reliable results of EE and be a helpful tool to get more knowledge about ER of dogs of different sizes, breeds and ages.
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