Departments of Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences, Uppsala, Sweden.
Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden.
J Vet Diagn Invest. 2022 Mar;34(2):237-245. doi: 10.1177/10406387211071078. Epub 2022 Jan 10.
Determination of the nutritional condition, including estimation of amounts of total body fat (tBF), at routine postmortem examination of cats is typically based on subjective visual assessment. Subjective assessment may result in uncertainties regarding degree of overweight, and objective methods that provide a numerical value reflecting the tBF could be valuable to accurately judge excess body fat. We investigated if the falciform fat pad weight (FFPW) was correlated to tBF and could be used to detect overweight and obesity in cats. The FFPW and the femur length (FL) were recorded at postmortem examination in 54 cats and the FFPW:FL ratio (FFR) calculated. Each cat was additionally assigned to a fat category (FC) according to subjective assessment. Computed tomography was used to determine tBF as the body fat percentage (%BF), the body fat volume (BFV), and BFV normalized to animal size (nBFV) in 39 cats. There was strong correlation between the FFPW and the BFV ( = 0.888) and between the FFR and the nBFV ( = 0.897). The correlation between the nBFV and %BF was very strong ( = 0.974). Using a lower FFR cutoff value of 3.5 for obesity and 1.6 for overweight, there was a discrepancy in FC between using the FFR and subjective assessment in 6 of 54 cats (11%). We conclude that the FFPW increases proportionally with tBF and that the FFR provides a method for objective tBF estimation. We suggest introducing the FFR to feline postmortem examination protocols as an objective estimate of tBF.
在猫的常规死后检查中，通常基于主观视觉评估来确定营养状况，包括估计总体脂肪量（tBF）。主观评估可能会导致对超重程度的不确定，而提供反映 tBF 的数值的客观方法可能有助于准确判断体脂肪过多。我们研究了镰状脂肪垫重量（FFPW）是否与 tBF 相关，以及是否可以用于检测猫的超重和肥胖。在 54 只猫的死后检查中记录了 FFPW 和股骨长度（FL），并计算了 FFPW:FL 比值（FFR）。根据主观评估，每只猫还被分配到一个脂肪类别（FC）。在 39 只猫中，使用计算机断层扫描来确定 tBF 作为体脂肪百分比（%BF）、体脂肪体积（BFV）和体脂肪体积标准化到动物大小（nBFV）。FFPW 与 BFV 之间存在很强的相关性（r=0.888），FFR 与 nBFV 之间存在很强的相关性（r=0.897）。nBFV 与 %BF 之间的相关性非常强（r=0.974）。使用较低的 FFR 截断值 3.5 用于肥胖和 1.6 用于超重，在 54 只猫中有 6 只（11%）使用 FFR 和主观评估的 FC 存在差异。我们得出结论，FFPW 与 tBF 成比例增加，FFR 提供了一种客观估计 tBF 的方法。我们建议在猫的死后检查方案中引入 FFR，作为 tBF 的客观估计。
