Feed efficiency of diets with different energy and protein concentrations supplemented with methionine in laying quails

4th International Conference on Sustainable Agriculture and Environment

农业科学;生态环境科学

Ratriyanto, A.^1 ; Indreswari, R.^1 ; Nuhriawangsa, A.M.P.^1 ; Purwanti, E.^1

Department of Animal Science, Faculty of Agriculture, Universitas Sebelas Maret, Surakarta, Indonesia^1

关键词: Constant ratio;    Dietary treatments;    Energy efficiency ratio;    Feed consumption;    Feed efficiencies;    Metabolizable energies;    Protein concentrations;    Protein efficiency ratio;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/142/1/012001/pdf
DOI  :  10.1088/1755-1315/142/1/012001

来源: IOP

【 摘 要 】

The study was conducted to evaluate the feed efficiency of quail diets containing different concentrations of metabolizable energy (ME) and crude protein (CP) with constant ratio and supplemented with methionine. Four hundred laying quails (Coturnix coturnix japonica) were randomly assigned to four experimental diets in a 2×2 factorial arrangement. Each dietary treatment used 5 replicates of 20 quails. Two basal diets were formulated to contain 2,800 kcal kg-1ME and 18.7% CP (High ME-CP) and 2,600 kcal kg-1ME and 17.3% CP (Low ME-CP). Each basal diet was supplemented with 0 and 0.12% methionine. The High ME-CP diets generated lower feed consumption but higher egg mass and feed efficiency (P