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Articles by Kasiyati
Total Records ( 2 ) for Kasiyati
  Kasiyati , Sumiati , Damiana Rita Ekastuti and Wasmen Manalu
  Backgroud: The biosynthesis of vitellogenin as an egg-yolk precursor in oviparous animals is occurred in the liver cells. The vitellogenin synthetic capacity of hepatocyte is under the control of estrogen that its secretion increase when the oviparous animals reach sexual maturity. This experiment was designed to study the uses of curcumin and artificial monochromatic light on liver performance to improve vitellogenin synthesis to support egg production during laying period. Materials and Methods: One hundred and ninety two female magelang ducks were assigned into a completely randomized design with a 4×4 factorial arrangement. The first factor was dose of curcumin supplementation consisted of 4 levels i.e., 0, 9, 18 and 36 mg. The second factor was the color of monochromatic light consisted of 4 levels i.e., white, red, green and blue. Results: The results showed the interaction effects between curcumin and monochromatic light on the liver weight, hepatocytes diameter, DNA and RNA concentrations in the liver cells (p<0.05). Serum estradiol and vitellogenin concentrations in female magelang ducks during sexual maturity prior to laying period ranged from 0.06-0.19 and 0.36-3.46 mg mL–1, respectively. Curcumin supplementation at doses of 18 and 36 mg duck–1 day–1 increased the diameters of F1 follicles by 21.62 and 17.91%, respectively. Conclusion: It is concluded that curcumin supplementation at a dose of 18 mg duck–1 day–1 combined with the use of red or greenlight can improve the biosynthesis capacity of egg yolk protein precursors by liver cells without increasing liver cells proliferation. Moreover, the increased estradiol during vitellogenesis is also necessary in the recruitment of ovarian follicles in establishing the F1 hierarchical follicles.
  Kasiyati , Muhammad Anwar Djaelani and Sunarno
  Background and Objective: Moringa oleifera is one of the local food ingredients with adequate nutrient content to act as an antioxidant, hypocholesterolemia and cardiac stimulant. This research was designed to study the effect of supplementation of moringa leaf powder, on reproductive performance and ovarian morphometry of Pengging ducks. Materials and Methods: The study used a complete randomized design, with a total of eighty female Pengging ducks, 24 weeks old divided into five treatment groups and four replicates of each. The first group (control) was fed basal diet, without the supplement of moringa leaf powder, while the second to the fifth group was fed a basal diet with 2.5, 5, 7.5 and 10% Moringa leaf supplementation. Results: Age of sexual maturity was 2-3 days faster in the duck fed diet supplemented with 2.5-10% Moringa leaf powder. Concentrations of serum glucose, cholesterol and LDL were lower (p<0.05) in the group fed with moringa leaf supplement, although serum HDL and protein concentrations increased (p<0.05). MDA level of the liver ducks were significantly influenced (p<0.05) by moringa leaf supplement, as the diameter of F1 and F2 follicles, increased (p<0.05) in the groups fed diet supplemented with moringa leaf powder. Conclusion: The moringa leaf powder supplementation of 2.5-10%, improved the reproductive profile of the Pengging ducks which was supported by an increased in diameter of F1 and F2 follicles, without an increase in the serum cholesterol and MDA of the liver and ovary concentrations. Hence, moringa leaf powder was significant as a hepatoprotector and oviprotector, in sexually mature Pengging ducks.
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