Zhang Qiaoru, Sun Haoran, Gao Zuer, Zhao Hui, Peng Zhangrong, Zhang Tietao
Institute of Special Animal and Plant Sciences, Chinese Academy of Agriculture Sciences, Changchun 130112, China.
Animals (Basel). 2024 May 29;14(11):1599. doi: 10.3390/ani14111599.
This study evaluated the nutrition composition, the nutrient digestibility, and the energy value of six protein ingredients used in pet food by the difference method in six beagles within a 7 × 6 incomplete Latin square design. The results showed that the apparent total tract digestibility of gross energy (GE) and organic matter (OM) in beagles fed the fish meal (FM) and corn gluten meal (CGM) diets was higher than for those fed the meat and bone meal (MBM), soybean meal (SBM), mealworm meal (MM), and yeast extract (YE) diets ( < 0.05). The digestible energy (DE), metabolizable energy (ME), and net energy (NE) of the MM diet were greater than the other diets, and MBM was the lowest ( < 0.05). The ME of protein ingredients was positively correlated with organic matter and negatively correlated with the ash content. The NE of protein ingredients was positively correlated with the crude protein content and negatively correlated with the ash content. The study resulted in predictive energy equations for protein ingredients that were more accurate than the NRC's predictive equation of ME when the ash content of the ingredient was more than 30% DM. In conclusion, the nutrient digestibility and energy value of corn gluten meal were similar to those of fish meal and those of soybean meal were similar to yeast extract. All predictive energy equations for six protein feedstuffs had slight differences with measured energy values.
本研究采用7×6不完全拉丁方设计，通过差异法对6只比格犬食用的宠物食品中使用的六种蛋白质成分的营养成分、养分消化率和能量值进行了评估。结果表明，饲喂鱼粉（FM）和玉米蛋白粉（CGM）日粮的比格犬对总能（GE）和有机物（OM）的表观全肠道消化率高于饲喂肉骨粉（MBM）、豆粕（SBM）、黄粉虫粉（MM）和酵母提取物（YE）日粮的比格犬（P<0.05）。MM日粮的消化能（DE）、代谢能（ME）和净能（NE）高于其他日粮，MBM最低（P<0.05）。蛋白质成分的ME与有机物呈正相关，与灰分含量呈负相关。蛋白质成分的NE与粗蛋白含量呈正相关，与灰分含量呈负相关。当成分的灰分含量超过30%干物质时，该研究得出的蛋白质成分预测能量方程比NRC的ME预测方程更准确。总之，玉米蛋白粉的养分消化率和能量值与鱼粉相似，豆粕的养分消化率和能量值与酵母提取物相似。六种蛋白质饲料的所有预测能量方程与实测能量值均有细微差异。
