套算法评定中速型黄羽肉鸡 发酵菌渣代谢能及营养物质代谢率.

The experiment aims to evaluate the nutritional value of fermented pleurotus eryngii residue in yellow-feather broilers. 45 healthy male yellow-feather broilers (Tuhuang No.6) weighing (2.04±0.14) kg at 60 days old were randomly divided into 3 groups. Control group was fed with basal diet, groups A and B with basal diets + 20% and 30% fermented pleurotus eryngii residue, respectively. At the end of the experiment, the average daily feed intake (ADFI), energy metabolism and nutrient metabolism were measured. The experiment lasted for 13 days. The results showed as follows: the ADFI was significantly increased in groups A and B (P<0.05). The groups A and B with different substitution ratios of fermented fungus residue had a significant difference in the metabolic rates of calcium, phosphorus, and crude fiber calculated by the substitution method (P<0.05), while no significant differences were found in the metabolizable energy and nutrient metabolizable rates (P>0.05). The AME (TME) and AMEN (TMEN) of fermented fungus residue in groups A and B were 4.87, 5.21 MJ/kg (5.01, 5.39 MJ/kg) and 4.77, 5.14 MJ/kg (4.92, 5.32 MJ/kg), respectively. The total energy metabolism rate and nitrogen metabolism rate were 32.88%, 33.77% and 22.86%, 18.31%, respectively. The apparent (true) metabolic rates of DM, CP, EE, NDF, and ADF were 24.24%, 22.67% (26.37%, 24.55%), 22.86%, 18.31% (31.91%, 27.45%), 58.39%, 48.92% (59.02%, 49.58%), 19.20%, 25.44% (18.99%, 25.44%), and 62.67%, 58.51% (62.38%, 58.48%), respectively. It is concluded that the substitution ratio of untested raw materials may affect the metabolic rate of calcium, phosphorus, and crude fiber calculated by the substitution method, while metabolizable energy and other nutrient metabolizable rates can be used as a data reference for the application of fermented pleurotus eryngii residue in yellow-feather broilers. [ABSTRACT FROM AUTHOR]