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A. A. Samsudin
Department of Animal Science, Faculty of Agriculture, Universiti Putra Malaysia
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Energy

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Nutritive and Anti-Nutritive Evaluation of Kleinhovia hospita, Leucaena leucocephala and Gliricidia sepium with Respect to Their Effects on in Vitro Rumen Fermentation and Gas Production M. A. Ahmed; S. Jusoh; A. R. Alimon; M. Ebrahimi; A. A. Samsudin
Tropical Animal Science Journal Vol. 41 No. 2 (2018): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (479.101 KB) | DOI: 10.5398/tasj.2018.41.2.128

Abstract

The nutritive and tannin content of tree forages (Kleinhovia hospita, Leucaena leucocephala, and Gliricidia sepium and their effects on in vitro rumen fermentation, digestibility and gas production were examined. Rumen fluid was obtained from three fistulated Boer goats with an average weight range of 31-32 kg fed forages. The fluid was incubated with 0.2 g of each forage at 39 °C for 48 h to determine the in vitro gas production, DM digestibility, metabolizable energy and volatile fatty acid. The proximate composition and the polyphenol composition of the forage were also evaluated. The experimental design was a completely randomized design and the treatments were K. hospita, L. leucocephala and G. sepium. The chemical composition, percentage of total polyphenol, non-tannin polyphenol, condensed tannin and hydrolysable tannin differed (P<0.05) among the forages. The K. hospita had higher (P<0.05) net gas production and in vitro dry matter digestibility compared with other forages. Similarly, K. hospita had higher (P<0.05) concentration of total volatile fatty acid and propionic acid followed by L. leucocephala and G. sepium. The molar proportion of acetic and butyric acid did not differ among the forages. The outcome of this study present K. hospita as a good potential forage to be used in ruminant diet as a result of better nutrient composition, moderate anti-nutritive value and best ivDMD in comparison with L. leucocephala and G. sepium.
Sugar, Acid Soluble Polysaccharide, and Total Phenolic Contents in Tropical Legumes and Their Relationships with In Vitro Nutrient Fermentability A. Ikhwanti; A. Jayanegara; I. G. Permana; W. W. Wardani; Y. Retnani; A. A. Samsudin
Tropical Animal Science Journal Vol. 43 No. 4 (2020): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5398/tasj.2020.43.4.331

Abstract

Tropical legume is a type of C4 plant that has been adaptive to hot environments. Therefore, tropical legumes require energy reserves in the form of sugar and starch. This study aimed to explain the relationship between sugar, starch, and tannin contents of tropical legumes and their in vitro fermentation profiles. Samples of Bauhinia purpurea, Pterocarpus indicus, Tamarindus indica, Calopogonium mucunoides, Macroptilium atropurpureum, and Stylosanthes guianensis were tested by proximate analysis, Van Soest, and in vitro nutrient fermentability. The in vitro fermentability consisted of dry matter degradability (DMD), organic matter degradability (OMD), volatile fatty acid (VFA), methane and ammonia concentrations, and gas production. The gas production kinetics were determined as gas production from soluble nutrient (a), maximum gas production (a+b), and rate of gas production (c). All samples were tested using the orthogonal contrast test to compare in vitro fermentability characteristics between the different types of legumes and their tannin contents. Results revealed that the average content of the legumes dry matter examined was 22% with CP content of 15% -28%. The legumes in this study had average content of 3.74% sugar, 21.86% ASP, and 0.3% total phenolics (dry matter basis). Acid soluble polysaccharides content in legumes had a positive correlation with degradability, ammonia concentration, and total gas production (p<0.05). However, sugar content did not have a correlation with the other in vitro fermentation characteristics. The exploration of sugar and acid soluble polysaccharides content in tropical legumes might be profitable as these nutrients could increase feeding efficiency. Sugar did not have a significant relationship to the characteristics of fermentation, on the contrary, acid soluble polysaccharides had a very close relationship to the characteristics of fermentation. The total phenolics had a close relationship with the production of VFA and ammonia. Tree legumes have better digestibility than shrub legumes.
Modulatory effects of Macaranga tanarius leaves on rumen fermentation and fatty acid biohydrogenation in sheep: an in vitro study S. Jotham; A. I. Muhammad; A. A. Samsudin
Journal of the Indonesian Tropical Animal Agriculture Vol 50, No 3 (2025): September
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.50.3.145-158

Abstract

This study investigated the in vitro rumen fermentation characteristics, metabolism, and apparent biohydrogenation of fatty acids in Macaranga tanarius leaves (MTL) as a potential feed for sheep, compared to Napier grass (NG). Rumen fluid from four cannulated Dorper sheep was used to assess the in vitro fermentation kinetics of 200 mg of each forage. The analysis included gas production, in vitro dry matter and organic matter digestibility (IVDMD and IVOMD), volatile fatty acid (VFA) pro-duction, metabolizable energy (ME), and fatty acid profiles, including biohydrogenation. Metaboliza-ble energy (ME), gas production, and the in vitro digestibility of dry matter (IVDMD) and organic mat-ter (IVOMD) were significantly higher (P < 0.05) for the MTL group than for the NG group. This was accompanied by higher crude protein (CP), ether extract (EE) and non-fibre carbohydrates (NFC) in the MTL group. Conversely, neutral detergent fibre (NDF) and acid detergent lignin (ADL) were nega-tively correlated with CP, IVDMD, and IVOMD (P < 0.001), while strong positive correlations were observed among CO, IVDMD, and IVOMD (P < 0.001). Overall, Macaranga tanarius leaves demon-strated superior in vitro rumen fermentation efficiency, evidenced by enhanced digestibility, energy yield, and biohydrogenation capacity relative to Napier grass. These findings suggest that M. tanarius leaves hold significant promise as a sustainable and nutritious feed resource for sheep, with implica-tions for optimizing ruminant nutrition and productivity.
Effects of rumen-protected fat on changes of metabolites and reproductive genes in testes of Malin rams A. Ismail; A. I. Muhammad; L. T. Kee; L. T. Chwen; A. A. Samsudin
Journal of the Indonesian Tropical Animal Agriculture Vol 48, No 2 (2023): June
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/vol%viss%ipp%p

Abstract

The effects of RPF on metabolites and reproductive genes in testes of Malin ram was investigated. Twenty Malin rams (36.6kg ± 5.57 kg of bodyweight), were subjected to four dietary treatments; A: basal diet without rumen-protected fat (RPF), B; basal diet with 2% prilled fat, C; basal diet with 2% calcium salt and D; basal diet with 2% canola oil. At the end of the experiment four out of five animals from each group were slaughtered. The testes were excised for metabolites and gene expression stud-ies. The genes tested were associated to testes development and spermatogenesis (ODF1, SERPINA10, CatSper4, AdipoR2 and DAZL). Feeding RPF with calcium salt (Treatment C) has resulted in the up-regulation more than two folds in all reproductive genes. There were metabolites changes occurred between the groups and identified 44 important putative metabolites present in the testes. In conclu-sion, feeding of RPF to the animals as a source of energy has up-regulated the genes and identified the metabolites involve in the male reproductive tissues and activities.
Co-Authors A. I. Muhammad A. I. Muhammad A. Ikhwanti A. Ismail A. R. Alimon Anuraga Jayanegara I. G. Permana L. T. Chwen L. T. Kee M. A. Ahmed M. Ebrahimi S. Jotham S. Jusoh W. W. Wardani Y. Retnani