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All Journal Buletin Peternakan Jurnal Ilmu Ternak dan Veteriner Jurnal Riset Agribisnis dan Peternakan
T. Haryati
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Veterinary Other

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The correlation between mannanase and cellulase activities towards fibre content of palm oil sludge fermented with Aspergillus niger Purwadaria, T.; Sinurat, A.P.; Haryati, T.; Sutikno, I.; ., Supriyati; Dharma, J.
Indonesian Journal of Animal and Veterinary Sciences Vol 3, No 4 (1998)
Publisher : Indonesian Animal Sciences Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (769.186 KB) | DOI: 10.14334/jitv.v3i4.122

Abstract

Enzyme (mannanase and cellulase) activities and fibre (hemicellulose, cellulose and lignin) contents were determined during the fermentation course of palm oil sludge with Aspergillus niger TL (wild type) and A. niger ES I (an asporogenous mutant). The analyses were carried out at the incubation time of 3 and 4 days of aerobic fennentation and at 2 days of anaerobic fermentation afterward. The correlations between mamlanase activity with hemicellulose content and cellulose activity with cellulose content were calculated by linear regression . The activities of matutanase and cellulase are increasing during the aerobic fennentation, while in the anaerobic fennentation the enzyme activities are decreasing due to instability of the enzymes. The enzyme activities of ESI are higher than the TL. The regression coefficient is highly significant for correlation between mamlanase and hemicellulose content of fermented product by ESI (r = 0.83; P<0.01) . While other correlations are not statistically significant (P>0 .05) . Marutanase and cellulase activities were also detected after the fermented product dried at 60°C which indicated the enzymes are quite stable . Key words: Palm oil sludge, fermentation, cellulase, mamlanase, cellulose, hemicellulose, Aspergillus niger
PENGARUH KAWIN SODOR (FORCE MATING) TERHADAP PERSENTASE KEBUNTINGAN KELINCI NEW ZEALAND WHITE Soewandi, Bayu Dewantoro P.; Kostaman, T; Sopiyana, S; Haryati, T.
JURNAL RISET AGRIBISNIS & PETERNAKAN Vol 5, No 1 (2020): JURNAL RISET Agribisnis & Peternakan
Publisher : JURNAL RISET AGRIBISNIS & PETERNAKAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (435.733 KB)

Abstract

Rabbits have the potential to produce meat for the animal protein consumption. At present, rabbit farming has developed in Indonesia.The development of rabbit farming is also accompanied by problems in the rabbit productivity. The problem that occurs in rabbit breeders is the low productivity of rabbits. The aim of this research was to identify the effect of force mating to the percentage of pregnancy in New Zealand White (NZW) rabbits at Indonesia Research Institute of Animal Production (IRIAP). The material used in this research were 99 heads New Zealand White (NZW) rabbits in the rabbit station at the IRIAP. The treatment in this study is that the dam of NZW is mated in natural mating and force mating. Pregnancy percentage data were analyzed using T test. The results showed that the percentage of pregnancy between natural and force mating was significantly different (P <.05). The percentage of pregnancy with natural mating in rabbits is higher when compared to force mating, but force mating can to increase the high percentage of pregnancy. The conclusion of the study is that the pregnancy percentage for force mating is lower when compared to natural mating. However, force mating can increase the percentage of pregnancy to reach 74%.
The correlation between mannanase and cellulase activities towards fibre content of palm oil sludge fermented with Aspergillus niger T. Purwadaria; A.P. Sinurat; T. Haryati; I. Sutikno; Supriyati .; J. Dharma
Jurnal Ilmu Ternak dan Veteriner Vol 3, No 4 (1998)
Publisher : Indonesian Center for Animal Research and Development (ICARD)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (769.186 KB) | DOI: 10.14334/jitv.v3i4.122

Abstract

Enzyme (mannanase and cellulase) activities and fibre (hemicellulose, cellulose and lignin) contents were determined during the fermentation course of palm oil sludge with Aspergillus niger TL (wild type) and A. niger ES I (an asporogenous mutant). The analyses were carried out at the incubation time of 3 and 4 days of aerobic fennentation and at 2 days of anaerobic fermentation afterward. The correlations between mamlanase activity with hemicellulose content and cellulose activity with cellulose content were calculated by linear regression . The activities of matutanase and cellulase are increasing during the aerobic fennentation, while in the anaerobic fennentation the enzyme activities are decreasing due to instability of the enzymes. The enzyme activities of ESI are higher than the TL. The regression coefficient is highly significant for correlation between mamlanase and hemicellulose content of fermented product by ESI (r = 0.83; P<0.01) . While other correlations are not statistically significant (P>0 .05) . Marutanase and cellulase activities were also detected after the fermented product dried at 60°C which indicated the enzymes are quite stable . Key words: Palm oil sludge, fermentation, cellulase, mamlanase, cellulose, hemicellulose, Aspergillus niger
In Vitro Digestibility Evaluation of Fermented Coconut Meal Using Aspergillus Niger NRRL 337 T. Purwadaria; T. Haryati; J. Darma; O. I. Munazat
Buletin Peternakan 1995: BULETIN PETERNAKAN SPECIAL EDITION 1995
Publisher : Faculty of Animal Science, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21059/buletinpeternak.v0i-.5108

Abstract

Abstrak dalam bentuk hard copy
Co-Authors A.A. Ketut Agung Cahyawan W A.P. Sinurat I. Sutikno J. Darma J. Dharma O. I. Munazat S Sopiyana, S Soewandi, Bayu Dewantoro P. Supriyati . T Kostaman T. Purwadaria T. Purwadaria