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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 676 Documents
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THE EFFECT OF METHANOGENIC INHIBITOR FEED ON PROPIONIC ACID AND LAMB MEAT CHEMICAL QUALITY Sondakh, E.H.B.; Yusiati, I.M.; Hartadi, H.; Suryanto, E.
Journal of the Indonesian Tropical Animal Agriculture Vol 37, No 3 (2012): (September)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.37.3.183-188

Abstract

This study aimed to determine the effect of medium chain fatty acids (MCFA) on propionic acidsand lamb meat chemical quality. The treatment given was R1: feed without medium chain fatty acids(MCFA), while R2 dan R3 were the feed contained 1.0% and 1.5% of MCFA, respectively. The twelveheads of lambs yearling weight of 16-17 kg were used as materials. Biological trial was done for threemonths and then was slaughtered. Before being slaughtered, the animal was taken rumen fluid to beanalyzed for propionic acid. The carcass was sampled to be analyzed for chemical composition,cholesterol and fatty acids content. This study showed that methanogenic inhibitor feed with 1.0-1.5%MCFA could be used as sheep feed, and the results: the propionic acid content in rumen increased 29.59– 36.11%. The cholesterol content decreased 7.14-10.06%. For the meat fatty acids composition,unsaturated fatty acids increased 9.05 – 17.96%. while saturated fatty acid decreased 6.59 – 11.88%.
Nutritional comparison between dried and ensiled indigofera, papaya and moringa leaves Jayanegara, A.; Ardani, V.; Sukria, H. A.
Journal of the Indonesian Tropical Animal Agriculture Vol 44, No 1 (2019): March
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.44.1.77-83

Abstract

The objective of this experiment was to evaluate chemical composition, in vitro fermentation and digestibility of dried and ensiled indigofera, papaya and moringa leaves. The leaves were subjected to artificial drying in an oven at 60oC for 24 h and ensiling treatment for 30 d under room temperature. Dried and ensiled samples were determined for chemical composition, silage fermentation characteristics and in vitro rumen fermentation and digestibility. The experimental design was a factorial design 3 × 2 in which the first factor was different leaves (indigofera, papaya and moringa) and the second factor was conservation treatments (drying and ensiling). Determination of chemical composition was performed in duplicate whereas in vitro evaluation was conducted in three replicates. Results showed that ensiling treatment decreased CP contents of indigofera and moringa but not papaya leaves. Ensiling also decreased NDF and NDICP contents of all experimental leaves in comparison to drying treatment. The pH of all silages was high and they were characterized with high ammonia concentrations. Ensiled indigofera tended to have lower IVDMD and IVOMD as compared to dried indigofera (P<0.1). It can be concluded that ensiling of high protein forages leads to considerable extent of proteolysis.
THE EFFECT OF CALF STARTER RATION FOR PRE-WEANING ONGOLE GRADE (PO) CALVES ON BODY WEIGHT GAIN Winarti, E.; Widyastuti, A.
Journal of the Indonesian Tropical Animal Agriculture Vol 41, No 4 (2016): December
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.41.4.209-215

Abstract

The objective of study was to determine the effect of calf starter in the pre-weaning calves against the daily body weight gain. Twenty Ongole grade (PO) calves age of 1 month divided into 4 treatment groups of feed, 5 calves for each treatment. Treatment (P1) fed with extra soybean groats; (P2) soybean groats 50% + Gliricidia 50%; (P3) soybean groats 50%+ rice bran 50%; (P4) soybean groats 50%+ rejected bread 50%. Calf starter was given at age 1 month to 3 months. Observation was carried out on calves daily weight gain. This experiment was designed in Completely Randomized Design. Data was  analyzed by analysis of variance and continued Least Significant Difference Test. Statistical analysis showed that feed of (P <0.05) significantly affected the daily weight gain of the calves. Results of the study can be concluded that calf starter with soya groats provide the best daily weight gain of pre-weaning calf.
THE EFFICIENCY OF PROTEIN UTILIZATION IN DIFFERENT BROILER STRAINS Indarsih, B.; Pym, R.A.E.
Journal of the Indonesian Tropical Animal Agriculture Vol 34, No 3 (2009): (September)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.34.3.167-173

Abstract

The objective of this work was to study the protein utilization and protein turnover of different broilerstrains and was carried out in completely randomized design. One hundred and forty four sexed doc fromeach strain (Cobb =A, Ingham = B and Steggels = C) were divided into a factorial arrangement (threedietary protein, two sexes and three strains). Two regimens of composite mixes of a summit and dilution dietand a free choice between these two diets. Diets were changed weekly, with notional crude protein levelsat one day-old of 240g/kg for all chickens, and at 42 days of age of 120 or 180 g/kg in the low and highprotein. Protein utilization efficiency (PRE) was measured from 39-42 d of age. PRE increased with theincreasing of dietary protein in strains A and C and had much higher response than in strain B. The moisture:protein ratios were 2.51, 2.65 and 2.58 in strains A, B and C, indicating strain B contained higher moistureand body fat and less protein. Involvement of genetic controls as the selection effect seems to increase thecapacity of chickens in improving nutrient utilization
PROFITABILITY OF SMALLHOLDER DAIRY FARMS BASED ON THE PERFORMANCE OF LACTATING COWS AND FRESH MILK MARKET PRICES AT LOWLAND AREAS OF YOGYAKARTA Widiati, R.; Adiarto, A.; Hertanto, B.S.
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.37.2.132-138

Abstract

This study was aimed to determine the profitability of smallholder dairy farmers at the lowlandareas of Yogyakarta related to dairy cow performance (milk production) to be achieved at various freshmilk market prices. Thirty lactating Holstein cows belonging to the 16 farmers at the lowland areas ofYogyakarta Province selling milk directly to the consumers were drawn as the samples. Profitability wasdetermined by enterprise budgeting (accounting profit and economic profit) and break even point. Inputand output data were obtained from interview with the farmer samples along with direct observations onthe cows performance. The results indicated that under the observed condition of 9.28 liter/day averagemilk production at IDR 4,700 market price, the accounting profit was found to be IDR7,758,862/lactating cow/year. The farmers were able to make an economic profit of IDR 1,839,875 withprofit margin index of 0.12. If the farmers have to sell the fresh milk to the Cooperatives at the price ofIDR 2.800 or IDR 3.200/liter, in order to gain a positive economic profit, milk production must be atleast 13.5 or 12.0 liters/day, respectively.
Competitiveness of Indonesian beef trading in Asean Sutawi, S.; Hendraningsih, L.; Wahyudi, A.
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.44.2.213-219

Abstract

This research was aimed to analyze Indonesian beef trading competitive position and specialization in ASEAN countries. This research was conducted in Indonesia with nine other ASEAN members (Brunei, Cambodia, Laos PDR, Malaysia, Myanmar, Philippines, Singapore, Thailand, and Vietnam) as the comparison. The research used secondary data of beef export and import values, and export commodities from Indonesia and nine other ASEAN countries in 2013 to 2017. Beef competitive position was measured by using Revealed Comparative Advantage (RCA) method, while the development of beef commodity in international trading was measured by using Trading Specialization Index (TSI) method. RCA calculation result in 2013-2017 showed the lowest comparative advantage of Indonesian beef trading in ASEAN (RCA = 0.000). TSI calculation result in 2013-2017 showed that Indonesian beef trading commodity was in introduction stage in international trading (TSI=-1.000).
The pathogenecity of H5N1 highly pathogenic Avian Influenza (HPAI) virus clade 2.3.2. in Indonesian indigenous chicken by contact tranmission with infected duck Damayanti, R.; Wiyono, A.; Nuradji, H.; Cahyono, M. I.
Journal of the Indonesian Tropical Animal Agriculture Vol 42, No 2 (2017): June
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.42.2.72-80

Abstract

An experimental transmission study was conducted using nine healthy Indonesian indigenous chickens placed together with two 30 days old ducks which were experimentally infected with H5N1 HPAI clade 2.3.2 virus in the Biosafety Laboratory Level 3 (BSL-3) facilities. The aim of the study was to find out the pathogenicity of H5N1 HPAI virus clade 2.3.2 in Indonesian indigenous chickens. The study showed that within twenty four hours rearing, the chickens were exhibited mild clinical signs and by 48 hours, all of the chickens died, whereas the ducks survived but with severe clinical signs. The H5N1 HPAI virus has been successfully isolated from chickens and ducks swabs, confirming that those animals were infected by the virus. Histologically, the infected chicken encountered with severe inflammation reaction namely non suppuratives encephalitis, tracheitis, myocarditis, interstitial pneumonia, hepatitis, proventriculitis, enteritis, pancreatitis, nephritis and bursitis. Necrotizing spleen and pancreas were also prominent. Viral antigen was detected by immunohistochemistry staining in various affected visceral organs. This suggests that Indonesian indigenous chickens were susceptible to H5N1 HPAI virus clade 2.3.2 and it can be transmitted easily to Indonesian indigenous chickens by contact transmission with infected ducks.
THE ANALYSIS OF SEMI INTENSIVE NATIVE CHICKEN FARMING IN RURAL COMMUNITIES Wantasen, E.; Elly, F.H.; Santa, N.M.
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.39.2.126-133

Abstract

The study was aimed to determine the income for semi intensive native chicken farming and todetermine the factors influence it. The study was conducted by survey method and direct interview usingquestionnaire to 35 members of farmers group “Poyuyanan” in Poyowa Besar Village, SouthKotamobagu Dstrict North Sulawesi Province. Data were analyzed by using descriptive and quantitativeanalysis using multiple regression analysis of Cobb-Douglass model. The result showed that farmer withan average ownership of 8 hens could obtain income equivalent to 37.9 kg of rice per month. Theregression analysis showed that altogether the dependent variables had effect to income as much 81.2%(R2 = 0.821). Partially variables that could increase farmers’ income were hatching rate, number ofproductive hen, cost of production and number of eggs hatched. Mortality was the only variable thatdecreased farmers’ income. Cost of production in semi intensive native chicken farming which mainlyfor buying feed could increase the production and income for farmers that in turn would support foodavailability of rural communities in Poyowa Besar Villages
CHOICE FEEDING AND AMINO ACID REQUIREMENTS FOR BROILERS Indarsih, B.; Pym, R.A.E.
Journal of the Indonesian Tropical Animal Agriculture Vol 36, No 4 (2011): (December)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.36.4.243-251

Abstract

The study was conducted as a completely randomized design, with a factorial arrangement todetermine the response of commercial broilers to choice feeding and limiting amino acids on growth andcarcass performance. A total of 432 male birds were weighed at one-d-old and randomly distributed to48 wire-floored brooder cage each 1.0 m2. There were 2 sexes and 4 dietary treatments with 6 replicateseach of 9 birds. Birds were given one of three dietary regimens with dietary change every 7 days. Allgroups were fed free choice of summit and dilution diets. The estimated dietary level of crude protein atday-old was 240 g/kg and the level at 42 d was either 120, 150 or 180 g/kg for females or 130, 160 and190 g/kg for males. At 43 d of age, all birds from each dietary treatment were slaughtered formeasurement of body composition. Results reveal that lysine requirement for maximum gain in thisstudy was higher than NRC recommendation. The free choice-fed bird was significantly higher, in termsof growth and body composition than that obtained on the low dietary protein regimen.
Back-matter (Sept 2019) Kurnianto, Edy
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.App.1-App.9

Abstract

Page 17 of 68 | Total Record : 676

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