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Indonesian Journal of Agricultural Research
Indonesian Journal of Agricultural Research (InJAR) is a peer-reviewed quarterly journal published by TALENTA (Universitas Sumatera Utara's Journals Publisher) and managed by Faculty of Agriculture, Universitas Sumatera Utara. It is based on DIKTI accreditation standard and covers all aspects of agricultural researches including Animal Science and Fisheries, Agribusiness, Agrotechnology and Agricultural Technology. All manuscripts are double-blind refereed before acceptance. InJAR is published in March, July, and November.
Articles
22
Articles
Growth Response and Production of Broccoli (Brassica oleracea) With Application of Azolla Composting at Several Plant Spacing

Barus, Wan Arfiani, Khair, Hadriman, Irawan, Muhammad Fatrian

Indonesian Journal of Agricultural Research Vol 1 No 2 (2018): InJAR, Vol. 1, No. 2, July 2018
Publisher : Talenta Publisher

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Abstract

This study aims to determine the growth response and Plant Production of Broccoli (Brassica oleracea Var. Botrytis) with application of Azolla composting in some plant spacing. This research used a Factorial Randomized Block Design with two factors namely: Azolla Composting Factor (A) with 4 levels 0, 32, 64, 96 and A4 = 128 g/plant. Plant spacing factor with 3 levels 45 cm x 45 cm, 50 cm x 50 cm and 55 cm x 55. The results showed that the application of Azolla compost 128 g/plant had significant effect on the stem height, stem diameter and flower weight. Plant spacing in 55 cm x 55 cm only affected the flower weight. There was no interaction between Azolla compost and plant spacing for all parameter observed.

Marketing Analisys of Localchicken Egg (Gallus Domesticus) in Pematangsiantar, North Sumatera

Ginting, Rendell Herbert, Daulay, Armyn Hakim, Hanafi, Nevy Diana

Indonesian Journal of Agricultural Research Vol 1 No 2 (2018): InJAR, Vol. 1, No. 2, July 2018
Publisher : Talenta Publisher

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Abstract

Abstract. The purpose of this research was to analyze the marketing system and marketing channel of chicken eggs and to analyze marketing efficiency based on marketing margin, price share and profit ratio of chicken egg cost in Pematangsiantar Municipality of Simalungun District. This research was conducted for two months, from July to August 2017. The methods used in data collection were: sampling of breeders and other marketing institutions selected by snowballing sampling technique and data collection methods was done by interviewing techniques using questionnaire. Data analysis included: marketing costs, marketing margin,farmer share and profit cost ratio of each marketing channel. The results of this study indicated that there were four marketing channels. The marketing margin on the Channel II showed the smallest cost margin and the largest profit margin so that it showed the largest cost-benefit ratio. The largest farmer share was obtained on the Channel IV but this channel  used only the retailers as an intermediate channel (one level) and relatively few exchanged eggs. So it was concluded that the Channel II was the most efficient channel becauseof the smallest cost and that the  profits were spread evenly among all the marketing institutions that play a role. The need for chicken eggs in Pematangsiantar Municipality was supplied from outside the city (63.33%) and filled by breeders from within the city(36.66%). Keyword:localchicken egg, marketing channel, marketing efisiensi

Encapsulated Curcuma aeruginosa: Inhibition Method of Bitter Receptor Cells from The Perspective of Wall Formation

Sihombing, Monang, Ananingsih, Victoria Kristina

Indonesian Journal of Agricultural Research Vol 1 No 2 (2018): InJAR, Vol. 1, No. 2, July 2018
Publisher : Talenta Publisher

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Abstract

Curcuma aeruginosa is one of the herbs with health benefits and has been used in traditional medicine, has the characteristic bitter taste, so that limited use was. The formation of walls in the active component coating process can minimize direct contact of bitter receptor cells in the oral peripherals so the perception of bitterness can be reduced. This study used a variation of the WPI concentration as the coating wall materials 10%, 15% and 20%. Formation of coating walls was analyzed using SEM later in the sensory test for effectiveness decreased level of bitterness. The addition of 10% WPI results in the best wall formation was in Curcuma aeruginosa, which could decrease perception of significant bitterness. In contrast to the addition of WPI 15% and 20% were found in an oval shape, craters and ruptures form on coating wall, reducing the protection of the core component and contact with bitter receptor cells in the oral peripheral resulting in bitters taste perception increasing.

Effect of Ratio of Moringa Leaves Juice with Pineapple Juice and Arabic Gum on the Quality of Jelly Candy

Purba, Carly, Sinaga, Hotnida, Nurminah, Mimi

Indonesian Journal of Agricultural Research Vol 1 No 2 (2018): InJAR, Vol. 1, No. 2, July 2018
Publisher : Talenta Publisher

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Abstract

The purpose of this research was to determine the effect of ratio of moringa leaves juice with pineapple juice and the best percentage of arabic gum on the quality of jelly candy. This research was using completely randomized design with two factors, i.e. : ratio of moringa leaves juice with pineapple juice (K): (100%:0% ; 75%:25% ; 50%:50% ; 25%:75% ; 0%:100%) and arabic gum percentage (G): (1,0% ; 1,5% ; 2,0%). Parameters analyzed were moisture content, ash content, vitamin C content, total soluble solid, total acid, lightness value (L*), hedonic organoleptic values of colour, flavour, taste, texture and score organoleptic values of colour and texture. The results showed that the ratio of of moringa leaves juice with pineapple juice had highly significant effect on ash content, vitamin C content, total acid, lightness value, hedonic organoleptic test of colour, flavour, taste and score organoleptic value of colour. The ratio of  moringa leaves juice with pineapple juice (25%:75%) and 2,0% arabic gum percentage produces the best quality of jelly candy based on hedonic organoleptic values of colour, flavour, taste, texture and score organoleptic values of colour and texture.

Competitive Advantage of Broiler Production in District Mansehra

Khan, Fida Muhammad, Ali, Ghaffar, Sadozai, Khuram Nawaz, Khan, Noor P

Indonesian Journal of Agricultural Research Vol 1 No 2 (2018): InJAR, Vol. 1, No. 2, July 2018
Publisher : Talenta Publisher

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Abstract

Poultry is an important sub sector of livestock and is ahead of all other sub sectors in economic growth. Broilers production is a specialized branch of poultry farming. This research was conducted in Mansehra is the region where considerable amount of commercial broiler production takes place. The region of the study has a high concentration of commercial activities, infrastructural facilities like veterinary care as well as climate that favor the production and marketing of poultry meat products. This research was conducted in nine villages of district Mansehra namely Kotli Pain, KotliBala, Kheil, Tanda, Bafa, Chatar Plain, Ahl, Batal and Mongandawraha. The purpose of the research was to analyze the competitive advantage of broiler farming. There were 276 broiler farms in District Mansehra. Simple Random Sampling Technique was used for data collection from 70 respondents. Average total cost of production was found Rs. 738238.11 having average farm size of 3605 broilers. Feed and one day old chick costs constitute 90.01% of the total cost. Average expenditure on production per broiler was Rs. 220.20 having net profit per broiler of Rs. 24.11.Based on Porter study (1990), average variable cost (C) was used as a proxy for competitive advantage. Results of regression analysis show that the main factors that significantly affect competitive advantage of broiler farming in the study area was feed cost, day old chick cost, labor and medication cost while capacity utilization and extension service contacts negatively and significantly affect cost. It means that reducing the above mentioned costs and using installed capacity and extension service contacts will reduce production cost and will promote competitive advantage of broiler production. Broiler production should be encouraged through better feed management practices and also by feeding broilers with nutritious feed. Broiler farmers should be encouraged to fully use their installed capacity of their farm.

Growth Response of Peppermint (Mentha piperita L.) Stem Cuttings on Several Composition of Planting Media

Butar Butar, Rio Ramadhan, Sitepu, Ferry Ezra, Hasanah, Yaya

Indonesian Journal of Agricultural Research Vol 1 No 2 (2018): InJAR, Vol. 1, No. 2, July 2018
Publisher : Talenta Publisher

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Abstract

Planting media is one of the keys to success in cultivating peppermint to produce the optimal growth. The objective of the research is to determine the growth response of peppermint stem cutting on composition of planting media. The research was conducted at the research field of the Faculty of Agriculture, Universitas Sumatera Utara, Medan on August to October 2017 using non factorial randomized block design consisted of composition of planting media (top soil ; top soil + biochar (3:1); top soil + chicken manure (3:1); top soil + empty fruit bunches of palm oil compost (3:1); top soil + empty fruit bunches of palm oil compost + chicken manure (2:1:1); top soil + biochar + chicken manure (2:1:1); top soil + biochar + empty fruit bunches of palm oil compost (2:1:1). The results show that the composition of planting media was significantly effect of the percentage of cutting grows, number of shoots, length of shoots, root volume and number of leaves. Top soil: EFB of palm oil (3: 1) the best treatment because it increases the percentage of cutting growth, root volume, dry weight and root dry weight.

Trade Effect of Sanitary and Phytosanitary (SPS) and Technical Barriers to Trade (TBT) on Indonesias Shrimp Export

Khaliqi, Muhammad, Rifin, Amzul, Adhi, Andriyono Kilat

Indonesian Journal of Agricultural Research Vol 1 No 2 (2018): InJAR, Vol. 1, No. 2, July 2018
Publisher : Talenta Publisher

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Abstract

The development of the implementation of non-tariff measure policy, in the world market which has a trend, increased every year. There are seven (7) NTM policies mostly implemented in the international market. The most policy application is the implementation of Technical Barriers to Trade and Sanitary and Phytosanitary. Agricultural commodities both vegetables and live animal products are commodities mostly become subject to NTM policy in the form of SPS (Sanitary and Phytosanitary) and TBT (Technical Barriers on Trade) in the international market. Indonesia as an agricultural country that has advantages in agriculture and fisheries cannot avoid the implementation of SPS and TBT policies. This research was aimed to analyze the effect of SPS and TBT on Indonesia’s shrimp export using the gravity model. The results showed that the GDP of exporters and the exchange rate have negative influences on Indonesia’s shrimp exports. Meanwhile, the GDP of the importers and trade cost have positive influences on the export of shrimp Indonesia. while the SPS policy and TBT don’t affect Indonesias exports of shrimp in the international market. This indicates that Indonesian shrimp exporters are able to quickly adjust the SPS and TBT policies applied by importing countries.

Isolation and Identification of Cellulolytic and Lignolytic Bacteria from the Gut Oryctes rhinoceros L. Larvae Decomposition of Oil Palm Empty Fruit Bunches

Dini, Isna Rahma, Wawan, Wawan, Hapsoh, Hapsoh, Sriwahyuni, Sriwahyuni

Indonesian Journal of Agricultural Research Vol 1 No 2 (2018): InJAR, Vol. 1, No. 2, July 2018
Publisher : Talenta Publisher

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Abstract

One of the organisms that helps in decomposition of oil palm empty fruit bunches is Oryctes rhinoceros L. larvae. This is because of in the gut of the larvae there are many cellulolytic bacteria and lignoliytic. The process of accelerating the decomposition of oil palm empty fruit bunches into compost can be done by optimizing the work of the bacteria. The aim of this research is to obtain cellulolytic and lignolytic bacteria from larvae O. rhinoceros L.. The research succeeded to isolate 24 isolates of cellulolytic bacteria and lignolytic bacterial isolates from the gut of O. rhinoceros larvae. Based on qualitative test, 9 isolate bacteria produced cellulolytic index above 2. The highest cellulolytic index was generated by ORL19 isolate, while the lignolytic index obtained ORL6 isolate. Based on macroscopic and microscopic identification of bacteria, biochemical and physiological tests,  it was found ORL 6 belongs to the genus Bacillus sp. while the ORL 19 belongs to the genus Citrobacter sp..

Effect of Partial Replacement of Wheat Flour with Various Mangrove Fruit Flours and Different Emulsifiers on Physicochemical Properties of Biscuits

Jariyah, Jariyah, Yektiningsih, Endang, Sarofa, Ulya, Sopadeo, Peter Adeye

Indonesian Journal of Agricultural Research Vol 1 No 2 (2018): InJAR, Vol. 1, No. 2, July 2018
Publisher : Talenta Publisher

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Abstract

Biscuit formulation was produced from the partial substitution of wheat flour using mangrove fruit flour (MFF) with the addition of an emulsifier. In this study, Pedada (Sonneratia caseolaris) and Lindur (Bruguiera ghymnorhiza) were used as two varieties of MFF. Lecithin and sodium stearoyl lactylate (SSL) was used to enhance the physical properties of the biscuits. An experiment was conducted by replacing wheat flour with MFF at different levels (0%, 20%, and 30%). Margarine, sugars, eggs, glucose syrups, and emulsifiers were added after mixing wheat flour with MFF, baking powder, and milk powder uniformly. Dough sheets were formed and baked on a greased tray at 1500C for 10 to 15 min. The biscuits produced were analyzed for spread ratio, breaking strength, and color (L*, a*, and b*), ranging from 4.13–5.07; 54.07–89.77 N; and 34.70–50.90 L*, 15.17–18.80 a*, and 12.00–28.07 b*, respectively. The analysis of chemical composition showed that the carbohydrate ranged from 90.99–93.60%, protein 4.26–7.12%, fat 0.22–0.59%, ash 0.93–1.75%, and moisture 0.88–1.36%, and the energy value spanned over 391.10–395.33 cal/100 g. Sensory evaluation rating, substitution of 20% with MFF, and SSL addition had the highest acceptability compared to other formulations.

Performance of Broilers and Native Chickens Fed with Unfermented and Fermented Arenga Waste

Nurmi, Aisyah, Harahap, Nurainun, Santi, Melia Afnida

Indonesian Journal of Agricultural Research Vol 1 No 2 (2018): InJAR, Vol. 1, No. 2, July 2018
Publisher : Talenta Publisher

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Abstract

The objectives of this research were to study the performances of broilers and native chicken given arenga waste (APAF) fermentation by Saccaromyces cerevisiae and arenga waste unfermentation (APA) in the ration. Sixty day-old chicks of broiler Arbor Acres strain and sixty native chicken were divided into four dietary treatments and three replications (10 birds/replicate). Design of this experiment was completely randomized design factorial 2x2, with factor A was feeding (A1 = arenga waste unfermentation, A2 = arenga waste fermentation), and factor B was chickens type (B1=native chicken, B2=broilers). The variables observed were: daily weight gain, feed consumption, and feed conversion. The results showed that the performances of the broiler given fed with unfermented and fermented arenga waste showing no significant differences between all treatments.  The results showed that there is an interaction between feeding and chicken type was no significant differences (P>0.05). Conclusion from this research of using fermented and unfermented arenga waste until level of 2.5% in ration showed no significant differences in the performance.