[논문]Effect of Sauropus Androgynus (Katuk) Extract on Egg Production and Lipid Metabolism in Layers

Santoso, U.; Setianto, J.; Suteky, T.

doi:10.5713/ajas.2005.364

Effect of Sauropus Androgynus (Katuk) Extract on Egg Production and Lipid Metabolism in Layers 원문보기

Asian-Australasian journal of animal sciences, v.18 no.3, 2005년, pp.364 - 369

Santoso, U. (Department of Animal Science, Faculty of Agriculture, Bengkulu University) , Setianto, J. (Department of Animal Science, Faculty of Agriculture, Bengkulu University) , Suteky, T. (Department of Animal Science, Faculty of Agriculture, Bengkulu University)

Abstract ▼ AI-Helper

The present study was conducted to evaluate effect of Sauropus androgynus extract (SAE) on egg production and lipid metabolism in layer chickens. Forty-eight layers aged 42 weeks (strain RIR) were distributed to 6 treatment groups as follows. One group was fed diet without SAE as the control ($P_0$), and other five groups were fed diet plus hot water-extracted SAE at level of 9 g/kg diet ($W_9$), diet plus ethanol extracted SAE at level of 0.9 g/kg diet ($E_{0.9}$), diet plus ethanol extracted SAE at level of 1.8 g/kg ($E_{1.8}$), diet plus methanol extracted SAE at level of 0.9 g/kg ($M_{0.9}$), and diet plus methanol extracted SAE at level of 1.8 g/kg ($M_{1.8}$). It was shown that SAE inclusion significantly increased egg production (p<0.05). Methanol-extracted SAE groups had lower egg production than ethanol-extracted SAE group (p<0.05). SAE supplemented groups had better feed conversion efficiency than the unsupplemented group (p<0.05). It was shown that ethanol extracted SAE resulted in the lowest feed conversion efficiency among the SAE supplemented groups (p<0.05). SAE supplementation significantly reduced abdominal fat, gizzard surrounded fat, liver fat (p<0.05), serum triglyceride, total cholesterol, VLDL+LDL-c (p<0.01), atherogenic index (p<0.05), egg cholesterol and triglyceride (p<0.05), but it had no effect on mesenteric fat, sartorial fat and fatty liver score. In conclusion, SAE supplementation could increase egg production but reduced egg cholesterol.

주제어

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가설 설정

Ethanol-extracted SAE had the highest value. It was hypothesized that ethanol-extracted SAE might contain the highest value of benzoic acid and androstan-17-one, 3-ethyl-3-hydroxy-5 alpha (steroid).

제안 방법

No study of effect of SAE on egg production and fat metabolism in layers has been published elsewhere. Therefore, the present study was conducted to evaluate effect of SAE on egg production and fat metabolism in layers.

데이터처리

All data were analyzed using ANOVA, and orthogonal contrast was used if there was significantly different at p<0.05.

이론/모형

After collecting blood, layers were then slaughtered and four areas of adipose tissue (abdomen, gizzard, mesenteric and sartorial), liver, gizzard, spleen, heart, intestine and caecum were removed and weighed. Liver fat was measured by the method of AOAC (1980). Four eggs from each treatment groups were collected and egg yolk was then separated.

성능/효과

05). It was shown that ethanol extracted SAE resulted in the lowest feed conversion efficiency among the SAE supplemented groups (p<0.05).

후속연구

This was confirmed by lower atherogenic index in the present study. Further study is needed to elucidate the effect of SAE on atherosclerosis. It was unknown why ethanol extracted SAE caused higher serum cholesterol and VLDL+LDL-cholesterol concentrations with lower egg cholesterol.
It means that certain compounds in SAE improved egg production, whereas others reduced egg cholesterol without any negative effects on egg production. It is needed further study to elucidate active compounds that influence cholesterol metabolism, and the mechanisms. Shim et al.

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원문 URL 링크

DOI : 10.5713/ajas.2005.364 [무료]
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