Hajati Hosna, Alizadeh-Ghamsari Amir Hossein, Hoseeini Seied Abdoluah, Lotfollahian Houshang
Department of Animal Science, Animal Science Research Institute of Iran (ASRI), Agricultural Research Education and Extension Organization (AREEO), Karaj, Iran.
Vet Med Sci. 2025 Jul;11(4):e70478. doi: 10.1002/vms3.70478.
Feathers constitute about 5-7 percent of broilers live body weight, and they are bulky waste in poultry slaughterhouses. These wastes are a serious issue that can cause environmental pollution. On the other hand, poultry feathers can be considered as a dietary ingredient to decrease the competition between humans and poultry in consuming corn and soybeans.
The aim of this study was to determine the best level of hydrolysed feather powder inclusion in broilers diet by using TOPSIS.
A total of five hundred Arian broiler chicks were used in a completely randomised design with 4 treatments, 5 replicates, and 25 chicks per replicate. Experimental treatments included four levels of hydrolysed feather powder as 0, 3, 6, or 9 % of the diet. The experiment lasted for 42 days. After recording parameters relating to the birds growth performance, carcass characteristics, production index, humoral immunity, heterophil to lymphocyte ratio, multiple attribute decision making (MADM), and the technique for order of preference by similarity to ideal solution (TOPSIS) were used.
Considering the closeness coefficient, hydrolysed feather at the level of 3 % had the highest coefficient (0.8038); however, hydrolysed feather at the level of 9 % had the lowest coefficient (0.7364).
Hydrolysed feather can be considered as a protein source in broilers diet that is not used as food for humans, and it will help the circular feed economy. With regard to the multi-attribute decision-making (MADM) method, it is recommended to use 3 % hydrolysed feather in the broilers diet.
羽毛约占肉鸡活体体重的5%-7%，是家禽屠宰场中的大量废弃物。这些废弃物是一个严重的问题，会造成环境污染。另一方面，家禽羽毛可被视为一种饲料成分，以减少人类与家禽在消耗玉米和大豆方面的竞争。
本研究的目的是通过采用理想解法排序法（TOPSIS）确定肉鸡日粮中水解羽毛粉的最佳添加水平。
总共500只艾维茵肉鸡雏鸡采用完全随机设计，有4种处理，5个重复，每个重复25只雏鸡。实验处理包括日粮中水解羽毛粉的四个添加水平，分别为0%、3%、6%或9%。实验持续42天。记录与鸡的生长性能、胴体特征、生产指标、体液免疫、异嗜性粒细胞与淋巴细胞比例相关的参数后，使用多属性决策（MADM）和理想解法排序法（TOPSIS）。
考虑贴近度系数，3%水平的水解羽毛粉具有最高系数（0.8038）；然而，9%水平的水解羽毛粉系数最低（0.7364）。
水解羽毛可被视为肉鸡日粮中的一种蛋白质来源，且该蛋白质并非供人类食用，这将有助于循环饲料经济。关于多属性决策（MADM）方法，建议在肉鸡日粮中使用3%的水解羽毛粉。
