Edi Soetrisno
Department of Animal Science, Faculty of Agriculture, University of Bengkulu

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The Effect of Soaking Layer Eggs into Boiled Water of Melinjo (Ggnetum gnemon l.) Leaves against Oxidation, Foaming, and Internal Quality of Eggs Diky Kurniawan; Edi Soetrisno; Suharyanto Suharyanto
JURNAL ILMIAH PETERNAKAN TERPADU Vol 9, No 3 (2021)
Publisher : DEPARTMENT OF ANIMAL HUSBANDRY, FACULTY OF AGRICULTURE, UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jipt.v9i3.p311-327

Abstract

This study aimed to evaluate the effect of soaking layer eggs into boiled water of melinjo leaves on oxidation, foaming, and internal quality of eggs. The experimental design was a Completely Randomized Design with 4 treatments namely without any soaked (P0), soaked for 24 h into boiled water of melinjo leaves 15% (P1), 30% (P2), and 45% (P4) with 4 replications. The measurements were on the 14th and 21st days. The data were analyzed using ANOVA and DMRT multiple comparisons by significance of 0.05. The observed variables included peroxide value, moisture content, foam, albumen and yolk (weight, volume, and index), air sac, and haugh unit. The results showed that the immersion into the boiled water of melinjo leaves had an effect on water content, oxidation rate, foam stability and internal quality of eggs with the best concentration was 30% (P2) and 45% (P3), but had no effect on foam formation. It was concluded that the immersion of chicken eggs at concentrations of 30% (P2) and 45% (P3) was able to prevent the acceleration of the changes in moisture content, suppress oxidation, improve the foam stability, and maintain the internal quality of eggs until the 21st day.
Recognition of seasonal effect on captive Sumatran Sambar deer reproductive cyclicity and sexual behaviors HERI DWI PUTRANTO; EDI SOETRISNO; NURMEILIASARI NURMEILIASARI; AHMAD ZUENI; BERRY GIBSON
Biodiversitas Journal of Biological Diversity Vol. 11 No. 4 (2010)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d110406

Abstract

Putranto HD, Soetrisno E, Nurmeiliasari, Zueni A, Gibson B (2010) Recognition of seasonal effect on captive Sumatran Sambar deer reproductive cyclicity and sexual behaviors. Biodiversitas 11: 200-203. The objective of this study was to identify seasonal effect on reproductive cyclicity of a captive female Sumatran sambar deer by monitoring its visual estrus manifestations and visual sexual behaviors in buck during female natural estrus in ex situ habitat. A pair of six years of age Sumatran sambar deer was used in this study.Daily observation of visual estrus manifestations of doe and visual sexual behaviors of buck was conducted using focal-animal sampling by two animal keepers during 0800 to 1700 h from June-July 2009 (dry season) to August-September 2009 (rainy season). Doe visual estrus manifestations include apparent reddening and swelling of the external genitalia, loss of appetite and a natural tendency of the doe to approach the buck. There was no significant effect of season on doe visual estrus manifestations and buck sexual behaviors (p > 0.05),except for loss of appetite and fighting behavior, respectively. Estrus was observed monthly and result of the cycle was 25.00 ± 5.22 days. It is possible to assess non-invasively estrous cycle of Sumatran sambar deer by the observation of visual estrus manifestations and there was less of seasonal effect on doe-buck sexual behaviors during female natural estrus in ex situ habitat.Key words: estrous cycle, sambar deer, seasonal effect, sexual behavior.