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INDONESIA
Journal of the Indonesian Tropical Animal Agriculture
Published by Universitas Diponegoro
ISSN : 20878273     EISSN : 24606278     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences
Journal of the Indonesian Tropical Animal Agriculture (JITAA) is a double blind peer-reviewed publication devoted to disseminate all information contributing to the understanding and development of animal agriculture in the tropics by publication of original research papers
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 599 Documents
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Back-Matter (June 2014) Kurnianto, Edy
Journal of the Indonesian Tropical Animal Agriculture Vol 39, No 2 (2014)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.39.2.%p

Abstract

PRODUCTION AND CHARACTERIZATION OF CRUDE INTRACELLULER PHYTASE FROM RECOMBINANT BACTERIA pEAS1AMP Nuhriawangsa, A.M.P.; Bachruddin, Z.; Sajidan, S.; Wibowo, A.
Journal of the Indonesian Tropical Animal Agriculture Vol 34, No 4 (2009): (December)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.34.4.265-271

Abstract

This research was aimed at producing a crude intracellular phytase characterized from recombinantbacteria. The recombinant bacteria (pEAS1AMP) was produced by way of transforming pET-22b(+)+pEAS1 into competent E. coli BL21 and E. coli BL21(DE3) cells. Crude intracellular phytaseproduction was induced using 1,5 mM Isopropyl-β-D-thiogalactopyranosid (IPTG). Recombinantbacteria product and enzyme activity test followed the Sajidan method. E. coli BL21(+)pEAS1 and E.coli BL21 (DE3)(+)pEAS1 recombinant bacteria showed growth after 20 hours and 10 hours oftransformation. Phytase activity of E. coli BL21 (DE3)(+)+pEAS1 showed higher than those of E. coliBL21(+)+pEAS1. Crude intracellular phytase of pEAS1AMP recombinant bacteria has an optimumactivity at pH 5, 40oC, incubation period of 60 minutes, substrate concentration of 2%, molecular weight(MW) of 47.3 kDa, Km = 15.91 υM and Vm = 2.41 υM/second. Mg2+ acts as a cofactor but Fe3+ (10-4M) acts as an inhibitor.
ANTIMICROBIAL ACTIVITY OF BACTERIOCIN FROM INDIGENOUS Lactobacillus plantarum 2C12 AND ITS APPLICATION ON BEEF MEATBALL AS BIOPRESERVATIVE Arief, I.I.; Jenie, B.S.L.; Suryati, T.; Ayuningtyas, G.; Fuziawan, A.
Journal of the Indonesian Tropical Animal Agriculture Vol 37, No 2 (2012): (June)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.37.2.90-96

Abstract

One purpose of food preservation is to extend the shelf life of foods. Biological preservations canbe conducted by adding antimicrobial substances, such as bacteriocin produced by lactic acid bacteriaand has been characterized as biopreservatives. The aims of this research were to evaluate antimicrobialactivity of bacteriocin produced by indigenous lactic acid bacteria Lactobacillus plantarum 2C12isolated from local beef and to study the quality of beef meatball with 0.3% bacteriocin asbiopreservative at different storage times (0, 3, and 6 days) in cold temperature (4oC), compared to 0.3%nitrite and control (without preservative). The results showed that bacteriocin from L. plantarum 2C12could inhibit pathogenic bacteria such as Escherichia coli, Staphylococcus aureus and SalmonellaTyphimurium. Bacteriocin was effective as well as nitrite as biopreservatives of meatballs by inhibitingthe growth of total microbes and E. coli. The addition of bacteriocin did not lead the physical andnutritional changes in the meatballs. The quality of meatball with bacteriocin treatment conformed withIndonesia National Standard of meatball.
Transformation of ram sperm nuclei in oocytes cytoplasm during in vitro fertilization Dzulfiqor, Y.; Setiadi, M. A.; Karja, N. W. K.
Journal of the Indonesian Tropical Animal Agriculture Vol 44, No 2 (2019): June
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.44.2.146-154

Abstract

The aim of present study was to understand the transformation of ram sperm nuclei within oocyte cytoplasm during in vitro fertilization. The oocytes were collected from slaughterhouse ovaries. Before fertilization, the oocytes were maturated in vitro for 24 hours in the incubator with 5% CO2 at 38.5°C. Then the oocytes (n= 635) was fertilized by incubating the oocytes with sperm (5x106 spermatozoa/ ml) for 3, 6, 9, 12, and 15 hours. At the end of incubating period, the oocytes were fixed and stained with aceto-orcein 2% before evaluated under phase contrast microscope. Sperm nuclear transformation was evaluated according to sperm nuclear status of sperm, such as condensation, decondensation, and formation of prepronuclei and pronuclei. Sperm condensation and decondensation were seen at 3 hours after incubation. Prepronuclei and pronuclei were found at 6 hours of incubation. Pronuclei formation was significantly increased in the 9 hours after incubation (P<0.05). The incidence of polyspermia was significantly increased at 12-15 hours after incubation (P<0.05). In conclusion penetration of sperm into oocytes has been occurred at 3 hour of fertilization period. The formation of pronuclei was found at 6 hours after incubation and the incidence of polyspermia was increased when the fertilization period prolonged.
Consumer's characteristics of yogurt in Manado, North Sulawesi - Indonesia Wantasen, E.; Elly, F. H.; Santa, N. M.
Journal of the Indonesian Tropical Animal Agriculture Vol 42, No 1 (2017): March
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.42.1.23-32

Abstract

The objective of this study was to analyze consumer’s characteristics of yogurt as one of fermented dairy product, consumers satisfaction and factors influencing consumers purchase decision on yogurt in Manado city. The primary data were collected using structured questionnaire from a total sample of 400 consumers in Manado City. Samples were selected using the accidental sampling method with schedule (using alternating date/ day and place, respectively). Collecting data were done from July to September 2015. The result indicated that most consumers were teenagers, female students, and single persons. Consumers of yogurt in Manado City are were categorized quite satisfied with yogurt product. The product availability had to be considered by producer in order to increase consumer satisfaction. Partially, factors that significantly influencing consumer’s purchase decision in Manado were preservative content, product availability, variant flavor, product volume and additional nutritive value.
THE GENETIC DIVERSITY OF KEJOBONG GOAT BASED ON CYTOCHROME B GENE J. Jiyanto; S. Sutopo; E. Kurnianto
Journal of the Indonesian Tropical Animal Agriculture Vol 39, No 2 (2014)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.39.2.75-82

Abstract

The purpose of this research was to identify Kejobong goat based on Cytochrome b gene variationby Polymerase Chain Reaction (PCR)-Sequencing technique and to analyze the genetic relationship byusing phylogenetic tree. Materials used were blood sample of 12 heads of Kejobong goat fromKaligondang, Pengadegan, Kejobong, and Bukateja Districts. The steps of this research included DNAextraction, PCR, electrophoresis and DNA sequencing. Forward primer 5'-tggaatctaaccatgaccaatg-3 'andreverse 3'-ggctattctccttttctggttt-5' were used in PCR process. The results of sequences were thenanalyzed by ClustalW in the MEGA 5. The result of this study showed that DNA could be extractedwell. The good results obtained from sequenced for about 779 bp at the nucleotide of 238 to 1016 inCytochrome b. A total of 7 codons diverse sites were detected (sites of 103; 122; 165; 167; 198; 215 and284) at Kejobong goats. There was change in amino acid at 2 sites, those were at 165 sites (*) replacedby (W) in K1 and K2 samples, and at 215 sites (T) replaced by (A) in all samples of Kejobong goats.Kejobong goats at 4 Districts had low genetic distance (0.000-0.001). The analysis of Cytochrome bgene of Kejobong goats originated from different area showed the high similarity and a close geneticrelationship.
PERFORMANCE OF INTEGRATED CONTRACT AND INDEPENDENT BROILER PRODUCTION IN EAST LOMBOK, WEST NUSA TENGGARA Indarsih, B.; Suryatman, W.
Journal of the Indonesian Tropical Animal Agriculture Vol 37, No 1 (2012): (March)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.37.1.50-58

Abstract

This study was undertaken to evaluate the performance of vertical integration and independentpoultry producers in East Lombok, West Nusa Tenggara, during the period July to September 2011.Data was collected from a primary field survey of integrated contract and independent producers. Thesample producers were interviewed to collect the required data using a questioner. Supporting data wereobtained from the relevant institution, and poultry association. Thirty integrated contract and fourteenindependent growers were involved to measure farm’s performance with references on numericalperformance (NP) and farmer’ returns. This study indicates that the NP of integrated contract andindependent farms were 315.7 and 317.1, respectively, both was higher than the standard that is 200.Returns for integrated contract farmers were lower than the independent when calculated based on theproduction cycle when this study was undertaken. Integrated contract farmers were attractive to varioustypes of professions, the graduated people of university or college (43.3%) was the most, whilstindependent farmers were dominated by senior high school (50%) with higher experience which wasmore than 20 years.
Effects of zeolite inclusion in aflatoxin B1-contaminated diet on the performance of laying duck Sumantri, I.; Herliani, H.; Rajibi, A. N.; Edriantina, R.
Journal of the Indonesian Tropical Animal Agriculture Vol 44, No 3 (2019): September
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.44.3.277-285

Abstract

The researchwas objected to study the effect of zeolite inclusion in aflatoxin B1 (AFB1) contaminated diet on the performance of laying duck. A completely randomized design was adopted in the in vivo experiment that consisted of 4 treatments, namely: (1) commercial feed (Control); (2) AFB1-contaminated feed 70 ppb (AFC); (3) Control + 2% zeolite; and (4) AFC + 2% zeolite. Each treatment had 4 replications with 4 ducks in each replication. A total of 64 eight months-female Alabio duck (Anas platyrinchos Borneo) were used in 28 days of the feeding experiment. Data were analyzed according to the general linear model of SPSS 21.0 statistical software. Results indicated that AFB1 exposure significantly (P<0.05) decreased the body weight of laying duck by 1.12%. Zeolite inclusion could prevent the adverse effect of AFB1 on body weight that increased by 2.95% in AFC+2% zeolite. Treatments had no significant effect on egg production and egg weight (P>0.05). Zeolite inclusion resulted in the highest final body weight whilst AFB1 diet without zeolite resulted in the lowest final body weight (P<0.05). Relative liver weight of duck fedAFC diet was 16.62% and to be 15.4% by zeolite addition in the diet. In conclusion, 2% of zeolite inclusion could reduce the adverse effects of AFB1 exposure on the performance of laying duck.
Amino acid diversity on the basis of cytochrome b gene in Kacang and Ettawa Grade goats D. A. Lestari; S. Sutopo; E. Kurnianto
Journal of the Indonesian Tropical Animal Agriculture Vol 42, No 3 (2017): September
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.42.3.135-146

Abstract

The objectives of study were to identify and assess the amino acid diversity of Cytochrome b (Cyt b) gene, genetic marker and characteristic of specific amino acid in Kacang and Ettawa Grade goat. Nineteen heads of Kacang goat (KG) and twelve heads of Ettawa Grade goat (EG) were purposively sampled. The genomic DNA was isolated by Genomic DNA Mini Kit (Geneaid) and amplified Cyt b using PCR method with CytbCapF and CytbCapR primers and was sequenced. The results showed that there were two specific amino acids that distinguish KG and EG goat with C. hircus and C. aegagrus and four specific amino acids that distinguish KG and EG goat with C. falconeri, but there were no specific amino acids can be used as a genetic marker to distinguish between Kacang and EG goat. In conclusion, specific amino acids in Cyt b gene can be used as a genetic marker among KG and EG goat with 3 goat others comparator.
EFFECT OF FSH β-SUB UNIT AND FSHR GENES POLYMORPHISMS ON SUPEROVULATORY RESPONSE TRAITS Andreas, E.; Arifiantini, I.; Saputra, F.; Ishak, A. B. L.; Imron, M.; Sumantri, C.
Journal of the Indonesian Tropical Animal Agriculture Vol 39, No 4 (2014): December
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.39.4.197-203

Abstract

Follicle stimulating hormone (FSH) is a pituitary expressed glycoprotein hormone that regulatesreproduction in mammals which composed of α and β-sub unit. The β-sub unit dictates its bindingspecificity with their receptor (FSHR). This study aimed to identify polymorphism of FSH β-sub unitand FSHR genes, and its effect to superovulatory response traits on superovulated cows. Study was doneon 32 cows including Angus, Friesian Holstein (FH), Limousin, Simmental and Brahman in CipelangLivestock Embryo Center. Cows used have been treated superovulation and mated by artificialinsemination. Superovulation response (SR), ovulation rate (OR), fertilization percentage (FP) andviable transfer embryo percentage (VP) were analyzed to investigate the effect of FSH β-sub unit andFSHR polymorphism. Allele frequency of FSH β-sub unit|PstI and FSH|AluI were opposite withinspecies. Mostly B allele and C allele for FSH β-sub unit and FSHR respectively have a high number inBos taurus species while those were in contrast in Bos indicus species. The highest heterozygosity wasfound in FH cattle (0.250) for FSH β-sub unit and Brahman (0.333) for FSHR. Significant effect was found between FSHR gene polymorphism with ovulation rate where CC genotype was higher (P<0.05)than CG and GG genotypes.

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