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T. Wardhani
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Veterinary

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Bioactive substances of some herbals and their effectiveness as antioxidant, antibacteria and antifungi Arnold P. Sinurat; Elizabeth Wina; Susana I.W. Rakhmani; T. Wardhani; Tuti Haryati; T. Purwadaria
Jurnal Ilmu Ternak dan Veteriner Vol 23, No 1 (2018): MARCH 2018
Publisher : Indonesian Center for Animal Research and Development (ICARD)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (398.936 KB) | DOI: 10.14334/jitv.v23i1.1660

Abstract

A study was conducted to explore the bioactive substances of some local plants in order to find their effectiveness as antioxidant, antibacteria and antifungi to be used as feed additives. Twelve plants material were used in this study. The total phenol, tannin and saponin contents in the plant extract were assayed. The extracts were also assayed on their antioxidant activities and on their ability to depress in vitro gas production of microbes obtained from chicken’s guts, their ability to inhibit growth of bacteria (E. coli and Salmonella enteridis) and fungi (A. niger). The results showed that the highest total phenol and total tannin contents were found in clove leaf extract, while the highest saponin content was found in Sapindus rarak fruit pericarp. The highest antioxidant activity was found in the leaffruit extract. Gas produced by microorganims was reduced to the level similar to antibiotic addition were found with addition of hexane- extract of leaffruit, kapok seed or methanol- extract of mangosteen fruit rind pulp or clove leaves. The best inhibitory effect on E. coli growth (measured by clearing zone) was found in methanol extract of S. rarak fruit. However, the most effective growth inhibitor for both E. coli and Salmonella was the liquid smoke of cashew nut shell. The best growth inhibitor for fungal growth was found in extract of clove leaves. Therefore, clove leaves extract (anti fungi), liquid smoke of cashew nut shell (antibacteria) and leaffruit (antioxidant) may have potential to produce feed additives to substitute antibiotic growth promoters.
Growth response of improved native breeds of chicken to diets differed in energy and protein content Cecep Hidayat; Sofjan Iskandar; Tike Sartika; T. Wardhani
Jurnal Ilmu Ternak dan Veteriner Vol 21, No 3 (2016): SEPTEMBER 2016
Publisher : Indonesian Center for Animal Research and Development (ICARD)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (250.384 KB) | DOI: 10.14334/jitv.v21i3.1397

Abstract

The aim of doing this experiment was to observe the growth response of improved native breeds of chicken under diets differed in energy and protein content. Three groups of improved native breeds, obtained from mating of ♂KUB to ♀KUB (Line 1), of ♂SenSi to ♀KUB (Line 2) and of ♂Gaok x ♀KUB (Line 3), were subjected to three experimental diets, differed in metabolizable energy (ME) and crude protein (CP) content. The experimental diets consisted of Diet 1 (2,800 kcal ME/ kg with 17,81% CP), Diet 2 (2,950 kcal ME/ kg with 18,61% CP) and  Diet 3 (3,100 kcal ME/ kg with 19,25% CP). The experiment was designed as factorial 3 x 3 with 7 replications of each treatment combination, consisted of 5 birds per treatment combination. The chickens were raised up to 10 weeks of age. Results of the experiment showed that Line 2 (♂SenSi mated to ♀KUB) had highest body weight at 10 weeks of age (P<0.05), lowest feed conversion ratio (FCR) and highest European Production Efficiency Factor (EPEF), compared to other two lines. The appropriate diet for Line 2 was Diet 2. It could be concluded the crossbred line that was resulted from crossing of ♂SenSi to ♀KUB (Line 2), had potential to be used as improved native chicken for the industry in Indonesia supported by appropriate diet containing 2,950 kcal ME/kg with 18.61% crude protein.
Co-Authors Arnold P. Sinurat Cecep Hidayat Elizabeth Wina Sofjan Iskandar Susana I.W. Rakhmani T. Purwadaria Tike Sartika Tuti Haryati