Open AccessTHE EFFECT OF DIETARY VITAMIN E AND ZINC LEVELS ON PERFORMANCE AND LIPID OXIDATION IN FRESH AND STORED EGGS OF LAYING DUCKS
Author(s) -
Arif Darmawan,
Sumiati Sumiati,
Widya Hermana
Publication year - 2017
Publication title -
buletin fakultas peternakan universitas gadjah mada/buletin peternakan
Language(s) - English
Resource type - Journals
eISSN - 2407-876X
pISSN - 0126-4400
DOI - 10.21059/buletinpeternak.v41i2.15675
Subject(s) - tbars , zinc , vitamin e , thiobarbituric acid , vitamin c , chemistry , vitamin , food science , antioxidant , completely randomized design , lipid peroxidation , feed conversion ratio , zoology , lipid oxidation , ascorbic acid , biochemistry , biology , endocrinology , body weight , organic chemistry
Vitamin E and zinc are necessary for preventing free radical damage to phospholipid membranes, enzymes and other important molecules. The objective of this study was to evaluate the effect of dietary vitamin E and zinc levels on performance and lipid oxidation in fresh and stored eggs of laying duck. A total of 90 of 22 weeks old ducks were randomly divided into 15 experimental units by assigning a completely randomized design with 5 treatments and 3 replications. The treatment diets were R1 (control diet), R2 (R1+40 IU vitamin E), R3 (R1+80 IU vitamin E), R4 (R1+100 ppm organic zinc), and R5 (R1+200 ppm organic zinc).The experiment was carried out for 8 wk. Parameters observed were feed intake, egg production, egg weight, feed conversion ratio, and Thiobarbituric Acid Reactive Substances (TBARS) value. The results showed that increasing of vitamin E from 40 IU to 80 IU and zinc from 100 ppm to 200 ppm did not affect feed intake and egg weight. Otherwise, the dietary Vitamin E and organic zinc significantly decreased (P<0.05) feed conversion ratio and significantly increased (P<0.05) egg production and decreased (P<0.01) TBARS values. It is concluded that dietary 40 IU vitamin E or 100 ppm organic zinc could increase the performance of laying ducks and dietary 200 ppm organic zinc was more efective to be antioxidant than 40 and 80 IU vitamin E.