Knowledge about energy requirements (ER) of dogs is important in order to provide dogs with an appropriate energy supply. In this study, the oral ¹³C-bicarbonate technique (o¹³CBT) 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 BW^0.75/day) was significantly lower (p < 0.001) than of Beagles (530 kJ (127 kcal)/kg BW^0.75/day) and DSF (497 kJ (119 kcal)/kg BW^0.75/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 BW^0.75/day and 513 kJ (123 kcal)/kg BW^0.75/day respectively. Analysed within breeds, EE of senior Labrador Retrievers (370 kJ (88 kcal)/kg BW^0.75/day)) was significantly lower (p < 0.01) than adults (439 kJ (105 kcal)/kg BW^0.75/day), as well as in DSF (453 kJ (108 kcal)/kg BW^0.75/day and 541 kJ (129 kcal)/kg BW^0.75/day for senior and adult dogs respectively). However, the EE was not significantly different (p > 0.05) between adult (548 kJ (131 kcal)/kg BW^0.75/day) and senior (499 kJ (119 kcal)/kg BW^0.75/day) Beagles. This study suggests that when measured under standardized resting conditions, the o¹³CBT 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.

中文翻译：

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使用口服 13C-碳酸氢盐技术估计三种不同体型的私人成年犬和老年犬的能量消耗

了解狗的能量需求 (ER) 对于为狗提供适当的能量供应非常重要。在这项研究中，口服¹³ C-碳酸氢盐技术 (o ¹³ CBT) 用于估计 50 只不同体型的私人拥有的狗的能量消耗 (EE)（小型：丹麦-瑞典农场犬 (DSF，n  = 16)，中：比格犬（n  = 15），大型：拉布拉多犬（n  = 19），不同年龄（成人：2-7岁（n  = 33），高级：≥8岁（n = 17))。目的是评估该方法在该领域的可行性，并获得有关狗 ER 的更多信息。在标准化的休息条件下，在两个不同的日子里对所有的狗进行两次测量。在测量前将狗禁食过夜，测量是在家庭环境中进行的。统计分析中仅包括对安静休息的狗的测量。在测量天数之间未发现 EE 的显着差异 ( p  > 0.05)。拉布拉多猎犬的 EE (405 kJ (97 kcal)/kg BW ^0.75 /day) 显着低于 ( p  < 0.001) 比格犬 (530 kJ (127 kcal)/kg BW ^0.75 /day) 和 DSF (497 kJ (119 大卡)/公斤体重^0.75/day)，Beagles 和 DSF 之间的差异不显着。老年犬的 EE 值显着低于成年犬 ( p  < 0.001)，最小二乘平均值 (LSM) 分别为 441 kJ (105 kcal)/kg BW ^0.75 /day 和 513 kJ (123 kcal)/kg BW ^0.75 /day。在品种内分析，高级拉布拉多猎犬的 EE (370 kJ (88 kcal)/kg BW ^0.75 /day) 显着低于 ( p  < 0.01) 成年犬 (439 kJ (105 kcal)/kg BW ^0.75 /day)，如以及 DSF（老年犬和成年犬分别为 453 kJ（108 kcal）/kg BW ^0.75 /day 和 541 kJ（129 kcal）/kg BW ^0.75 /day）。然而，EE 没有显着差异（p > 0.05) 在成年 (548 kJ (131 kcal)/kg BW ^0.75 /day) 和老年 (499 kJ (119 kcal)/kg BW ^0.75 /day) 比格犬之间。这项研究表明，在标准化静息条件下测量时，o ¹³ CBT 可以提供可靠的 EE 结果，并且是获得更多关于不同大小、品种和年龄的狗的 ER 知识的有用工具。