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K.G Wiryawan
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The use of formaldehyde protected palm kernel meal and its effects on animal performance, nitrogen utilization and unsaturated fatty acid composition in Priangan sheep Wiryawan, K.G; Parakkasi, A; Priyanto, R; Nanda, I.P
Indonesian Journal of Animal and Veterinary Sciences Vol 12, No 4 (2007)
Publisher : Indonesian Animal Sciences Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (65.036 KB) | DOI: 10.14334/jitv.v12i4.491

Abstract

An experiment was conducted to investigate the effect of formaldehyde-treated Palm Kernel Cake (BIS) in male Priangan sheep diet and its effect on animal performance, N utilization, and unsaturated fatty acids composition of musculus longisimus dorsal. The experiment was designed based on completly randomized design with four treatments and nine replications. The treatments consisted of four levels of formaldehyde treated BIS: R1 (0%), R2 (15%), R3 (30%) and R4 (45%). Results indicated that formaldehyde treated BIS up to 45% in diet did not negatively affect consumption, dry matter digestibility and daily live weight gain. Formaldehyde protection especially in R4 could significantly reduce ruminal N-NH3 concentration, increased protein digestibility and nitrogen retention, but did not influence allantoin urine concentration. Unsaturated fatty acid composition of musculus longisimus dorsal was not affected by formaldehyde treated BIS in diet. It is concluded that the inclusion of 45% formaldehyde treated BIS in diet did not negatively affect animal performance, and R4 is the most effective in improving nitrogen utilization in male Priangan sheep, but unable to alter the unsaturated fatty acids composition of musculus longisimus dorsal. Key Words: Palm Kernel Cake, Formaldehyde, Performance, Nitrogen, Unsaturated Fatty Acids
In vitro slow-release urea contained in rice straw-based diets to increase efficiency of rumen microbial protein synthesis Kardaya, Dede; Wiryawan, K.G; Parakkasi, A; Winugroho, H.M
Indonesian Journal of Animal and Veterinary Sciences Vol 15, No 2 (2010)
Publisher : Indonesian Animal Sciences Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (204.683 KB) | DOI: 10.14334/jitv.v15i2.648

Abstract

Effect of slow-release urea on efficiency of rumen microbial protein synthesis (EMPS) was examined using an in vitro technique. The objective of this experiment was to reveal the in vitro slow-release urea characteristics of zinc-urea, zeolites-urea, and zeolites-zinc-urea in relation to EMPS observed in different incubation time. The experimental design employed was randomized block design with 4 x 3 factorial plus a control treatment, and conducted in two replications. Factors were various urea sources (urea, zinc-urea, zeolites-urea, and zeolites-zinc-urea) and molasses concentrations (0%, 6%, and 12%) in rice straw-based diets. The control treatment was the rice straw-based diets containing neither urea nor molasses. Diets consisting of 45% rice straw and 55% concentrates (DM basis) were formulated to have similar N and TDN levels. Responses of parameters measured were subjected to MANOVA using the GLM procedure of SPSS 16.00 and differences among mean values, if applicable, were examined using HSD-test. Orthogonal comparisons were used to determine the effects of the control treatment vs. various urea sources. Results indicated that treatment of UZ combined with 6% of molasses showed the highest microbial biomass production (2.71 mg/l) at 24 hours fermentation period with its peak production estimation (3.2 mg/l) reached at 33.5 hours of fermentation period. Moreover, UZ treatment resulted in the highest microbial protein synthesis (1,381.45 ± 77.1 mg/l) at 24 hours fermentation period with its peak microbial protein synthesis estimation (1,756.04 mg/l) reached at 33.7 hours of fermentation period. The highest EMPS (25.98 ± 1.21 mg/100 mg OMD) was achieved when ration contained 6% of molasses. Key words: Slow-Release Urea, Microbial Protein Synthesis, Microbial Biomass, In vitro
The use of formaldehyde protected palm kernel meal and its effects on animal performance, nitrogen utilization and unsaturated fatty acid composition in Priangan sheep K.G Wiryawan; A Parakkasi; R Priyanto; I.P Nanda
Jurnal Ilmu Ternak dan Veteriner Vol 12, No 4 (2007): DECEMBER 2007
Publisher : Indonesian Center for Animal Research and Development (ICARD)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (65.036 KB) | DOI: 10.14334/jitv.v12i4.491

Abstract

An experiment was conducted to investigate the effect of formaldehyde-treated Palm Kernel Cake (BIS) in male Priangan sheep diet and its effect on animal performance, N utilization, and unsaturated fatty acids composition of musculus longisimus dorsal. The experiment was designed based on completly randomized design with four treatments and nine replications. The treatments consisted of four levels of formaldehyde treated BIS: R1 (0%), R2 (15%), R3 (30%) and R4 (45%). Results indicated that formaldehyde treated BIS up to 45% in diet did not negatively affect consumption, dry matter digestibility and daily live weight gain. Formaldehyde protection especially in R4 could significantly reduce ruminal N-NH3 concentration, increased protein digestibility and nitrogen retention, but did not influence allantoin urine concentration. Unsaturated fatty acid composition of musculus longisimus dorsal was not affected by formaldehyde treated BIS in diet. It is concluded that the inclusion of 45% formaldehyde treated BIS in diet did not negatively affect animal performance, and R4 is the most effective in improving nitrogen utilization in male Priangan sheep, but unable to alter the unsaturated fatty acids composition of musculus longisimus dorsal. Key Words: Palm Kernel Cake, Formaldehyde, Performance, Nitrogen, Unsaturated Fatty Acids
In vitro slow-release urea contained in rice straw-based diets to increase efficiency of rumen microbial protein synthesis Dede Kardaya; K.G Wiryawan; A Parakkasi; H.M Winugroho
Jurnal Ilmu Ternak dan Veteriner Vol 15, No 2 (2010): JUNE 2010
Publisher : Indonesian Center for Animal Research and Development (ICARD)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (204.683 KB) | DOI: 10.14334/jitv.v15i2.648

Abstract

Effect of slow-release urea on efficiency of rumen microbial protein synthesis (EMPS) was examined using an in vitro technique. The objective of this experiment was to reveal the in vitro slow-release urea characteristics of zinc-urea, zeolites-urea, and zeolites-zinc-urea in relation to EMPS observed in different incubation time. The experimental design employed was randomized block design with 4 x 3 factorial plus a control treatment, and conducted in two replications. Factors were various urea sources (urea, zinc-urea, zeolites-urea, and zeolites-zinc-urea) and molasses concentrations (0%, 6%, and 12%) in rice straw-based diets. The control treatment was the rice straw-based diets containing neither urea nor molasses. Diets consisting of 45% rice straw and 55% concentrates (DM basis) were formulated to have similar N and TDN levels. Responses of parameters measured were subjected to MANOVA using the GLM procedure of SPSS 16.00 and differences among mean values, if applicable, were examined using HSD-test. Orthogonal comparisons were used to determine the effects of the control treatment vs. various urea sources. Results indicated that treatment of UZ combined with 6% of molasses showed the highest microbial biomass production (2.71 mg/l) at 24 hours fermentation period with its peak production estimation (3.2 mg/l) reached at 33.5 hours of fermentation period. Moreover, UZ treatment resulted in the highest microbial protein synthesis (1,381.45 ± 77.1 mg/l) at 24 hours fermentation period with its peak microbial protein synthesis estimation (1,756.04 mg/l) reached at 33.7 hours of fermentation period. The highest EMPS (25.98 ± 1.21 mg/100 mg OMD) was achieved when ration contained 6% of molasses. Key words: Slow-Release Urea, Microbial Protein Synthesis, Microbial Biomass, In vitro
Co-Authors A Parakkasi Dede Kardaya H.M Winugroho I.P Nanda R Priyanto R Priyanto