不同类型犬粮营养品质的调查分析

Investigation and analysis of nutritional quality of different types of dog food

研究旨在评估4种不同类型犬粮的营养品质。试验选取市售的膨化粮(M)、鲜肉粮(F)、烘焙粮(B)和益生菌粮(P)等4种类型的犬粮各10份,检测其中重要营养成分蛋白质、氨基酸、钙、磷、维生素及塑化剂主要成分双酚A (BPA)的含量。结果显示:各组样品蛋白质含量为21.1%~40.4%,M组、F组、B组和P组的粗蛋白含量平均值分别为30.5%、30.5%、26.5%、30.7%,其中B组样品实测值与标定值存在较大差距。不同样品的氨基酸组成存在差异,个别样品中组氨酸和蛋氨酸+胱氨酸的含量未达到最低需求量。部分样品的VE含量未达标,尤其是P组VE含量未达标的样品较多。各组样品钙磷比在1.2~1.7范围内,符合犬类需求。所有样品中均检出了BPA,以B组含量较低。研究表明,大部分犬粮样品能够满足犬类营养需求,但个别样品在必需氨基酸和维生素方面仍存在提升空间。因此,未来强化监管和标准化管理犬粮至关重要,以确保犬营养需求。

The aim of this study was to evaluate the nutritional quality of four different types of dog food.Four types of dog food,including expanded food(M),fresh meat food(F),baked food(B)and probiotic food(P),were selected and 10 pieces of each were used to detect the content of important nutrients protein,amino acid,calcium,phosphorus,vitamin and the main component of plasticizer bisphenol A(BPA).The results showed that the protein content of each group ranged from 21.1%to 40.4%,and the average crude protein content of groups M,F,B and P were 30.5%,30.5%,26.5%,and 30.7%,respectively.There was a large gap between the measured value and the calibration value of group B.The amino acid composition of different samples is different,and the content of histidine and methionine+cystine in individual samples does not reach the minimum requirement.The VE content of some samples is not up to standard,especially the VE content of group P is not up to standard.The calcium-phosphorus ratio of each group of products was in the range of 1.2~1.7,which met the needs of dogs.BPA was detected in all samples,and the content of group B was low.Studies have shown that most of the samples can meet the nutritional needs of dogs,but there is still room for improvement in the essential amino acids and vitamins of individual samples.Therefore,it is essential to strengthen the supervision and standardized management of dog food in the future to ensure the nutritional needs of dogs.