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The Journal of Agriculture and Development
●The Journal of Agriculture and Development (JAD) is an international and peer reviewed journal publishing novel and significant research in a wide range of topics such as Agribusiness and Economics, Agricultural Mechanics, Agronomy and Forestry Sciences, Animal Sciences, Aquaculture and Fisheries, Biotechnology, Enviromental and Natural Resources, Food Science and Technology, and Veterinary Medicine. The JAD is an open access journal that includes primary research, review articles, short communications, and special invited papers. We also publish special issues which focus on the current emerging topics in agricultural sciences.
●The JAD (the formerly named Journal of Agricultural Science and Technology) is published in 6 issues per year (4 issues in Vietnamese with English abstracts and 2 issues in English). The journal has published over 19 volumes since 2002.
●Period of publication: Issue 1 (FEB), Issue 2 (APR), Issue 3 (JUN), Issue 4 (AUG), Issue 5 (OCT), Issue 6 (DEC)
●Publisher: Nong Lam University, HCMC (NLU)
Effects of nitrogen and potassium rates on growth and yield of red turmeric (Curcuma longa L.) on the gray soil in Ho Chi Minh City

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Effects of post-hatch feeding time and pre-starter feeds on growth performance and relative weight of visceral organs in slow-growing chickens

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Effects of dietary seaweed supplementation on milk productivity, milk quality and health of dairy cows

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Experimental Toxocara canis infection in chickens

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Survey of ornamental plants with medicinal values at The Saigon Zoo and Botanical Garden in Ho Chi Minh City

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Electronic version: 28 Jun 2018 | DOI: 10.52997/jad.1.03.2018Abstract |
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Abstract
Vietnamese pangasius prices have become more volatile over the past decade exposing the business to risk and uncertainty. This study explored Vietnamese pangasius farmers’ perceptions about the sources of price risk and the effectiveness of price risk management strategies through Likert scales. The relationships between farm and farmer socioeconomic characteristics and their perceptions were also examined by using Chi-square analysis. Data were obtained through a structured survey with 110 farmers in three provinces of An Giang, Can Tho, and Dong Thap. Results suggested that pangasius farmers mostly concerned the instability of input prices, the volume of input supply, the instability of output prices, and the legislation of sales contracts between farmers and processors. We further found that price risk management strategies were not perceived as less effective measures to mitigate the price risk. Gender, farmers’ experience, farm size, crop period, farm types, and access to credit are positively related to the farmers’ perceptions. Findings on the price risk perceptions and management strategies are useful to support public and private of price risk management decision towards increasing the sustainability of pangasius production. -
Electronic version: 28 Jun 2018 | DOI: 10.52997/jad.10.03.2018Abstract |
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Acerola fruit is known to have a high vitamin C concentration. Polyphenolics are also natural oxidants occurring in plants. Understanding changes of these components during storage conditions and processing steps become important. Results of this research showed that there was significant difference in vitamin C and total polyphenolic concentration and three popular varieties of acerola fruits from Tien Giang province. Concentrations of both vitamin C and polyphenolics reduced rapidly during storage at room temperature. After three days, vitamin C reduced about 40% whereas total polyphenolics reduced about 70%. The losses at refrigerated temperature after 3 days were less than 15% and less than 30%, for vitamin C and total polyphenolics, respectively. Frozen storage of the fruit maintained quite well vitamin C and polyphenolics. Acerola pomace juice was concentrated before spray drying and, at the same vacuum pressure, temperatures influenced significantly the retention of vitamin C and total polyphenolics. Optimization of spray drying conditioners including inlet hot air temperatures and added ratio of maltodextrin (drying carrier) was also carried out to obtain high recovery of dry matter, total polyphenolics and vitamin C. -
Electronic version: 30 Jun 2020 | DOI: 10.52997/jad.1.03.2020Abstract |
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In today’s increasing competitive global market, large and successful manufacturing enterprises have implemented the system of key performance indicators (KPIs) which drives the performance toward the business objectives; however, this is not the case for small-medium sized enterprises (SMEs) which have been increasingly important for any national economy, especially in manufacturing sector. Although the KPIs can ideally be constructed in accordance with the concept of SMART (Specific, Measureable, Attainable, Realistic, Time-related) or balanced scorecard, but SMEs that are lack of limited resources and expertise could rarely afford to build such systems with the appropriate definition and measurement of KPIs. Therefore, the paper aimed to provide systematically the system of KPIs adaptable to SMEs, to prioritize the importance of each proposed KPI with the application of a fuzzy analytic hierarchy process (FAHP), and to instruct the comprehensive deployment of the SMEs’ manufacturing performance system. -
Electronic version: 30 Jun 2020 | DOI: 10.52997/jad.3.03.2020Abstract |
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The use of antimicrobials for feeding and treatment is crucial to animal health. However, continuous use of antibiotics is contributing to emergence and widespread of antibiotic resistance. This study aimed to investigate the antimicrobial resistance of five major respiratory pathogens in pigs of Hubei province, China, from October to December, 2019. Antibiotic susceptibility testing for Streptococcus suis, Haemophilus parasuis, Pasteurella multocida, Bordetella bronchiseptica and Actinobacillus pleuropneumoniae was determined to representatives of relevant antibiotic classes. Streptococcus suis isolates were mostly sensitive to beta-lactams, whereas high levels of resistance were observed to quinolones, gentamycin, doxycycline, trimethoprime and lincomycin. For H. parasuis, P. multocida and A. pleuropneumoniae of Pasteurellaceae family, the susceptibility to beta-lactams and quinolones was displayed. Most \textit{B. bronchiseptica} isolates were sensitive to doxycycline, azithomycin, polymycin whereas high resistance levels to beta-lactams, aminoglycosides and quinolones were recorded.This study obtained practical data for later studies and usage to combat infections due to respiratory bacteria. -
Electronic version: 27 Dec 2019 | DOI: 10.52997/jad.6.06.2019Abstract |
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Abstract
Phenolic compounds are secondary metabolites mainly responsible for different pharmacological activities of the plant extracts. In this study, microwave-assisted extraction (MAE) variables were optimized for the extraction of the phenolic compounds from Chromolaena odorata (C. odorata) by using a central composite design (CCD) of response surface methodology (RSM). The optimized conditions were at 62oC for 3 min with solvent to feed ratio of 14:1 (mL/g) and ethanol concentration of 50% (v/v). The highest yield of total phenolic compounds was 75.76 mgGAE/g. Ethanol extract clearly showed antifungal activity through antifungal index. The antifungal effect Phytophthora capsici, Fusarium oxysporum and Colletotrichum siamese were 79.07%, 78.66% and 78.42%, in 0.5% of ethanol extract, respectively.