Egg quality of quails fed low methionine diet supplemented with betaine

4th International Conference on Sustainable Agriculture and Environment

农业科学;生态环境科学

Ratriyanto, A.^1 ; Indreswari, R.^1 ; Dewanti, R.^1 ; Wahyuningsih, S.^1

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

关键词: Completely randomized designs;    Dietary treatments;    Egg quality;    Fat contents;    Orthogonal polynomial;    Protein contents;    Quail eggs;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/142/1/012002/pdf
DOI  :  10.1088/1755-1315/142/1/012002

来源: IOP

【 摘 要 】

This experiment investigated the effect of betaine supplementation to low methionine diet on egg quality of quails. A total of 340 laying quails (Coturnix coturnix japonica) was divided into 4 dietary treatments with 5 replicates of 17 quails each. The experiment was assigned in a completely randomized design. The four dietary treatments were the low methionine diet (0.3% methionine) without betaine supplementation and the low methionine diet supplemented with 0.07, 0.14, and 0.21% betaine. The experimental diets were applied for 8 weeks and the egg quality traits were measured at the age of 16 and 20 weeks. The data were subjected to analysis of variance, and when the treatment indicated significant effect, it was continued to orthogonal polynomial test to determine the optimum level of betaine. Increasing dietary levels of betaine increased the fat content of the egg with the linear regression of y = 11.0949 + 4.1914x (R2= 0.18). However, supplementation of betaine did not affect protein content, yolk, albumen, and eggshell percentage. It can be concluded that betaine supplementation up to 0.21% to low methionine diet only had little effect in improving the quality traits of quail eggs.