AMA, Agricultural Mechanization in Asia, Africa and Latin America
AMA, Agricultural Mechanization in Asia, Africa and Latin America (AMA) (issn: 00845841) is a peer reviewed journal first published online after indexing scopus in 1982. AMA is published by Farm Machinery Industrial Research Corp and Shin-Norinsha Co. AMA publishes every subjects of general engineering and agricultural engineering.
WOS Indexed (2026)
30 Jun 2026 (Vol - 57 , Issue- 07 )
31 Jul 2026 (Vol - 57 , Issue 07 )
Aim and Scope :
AMA, Agricultural Mechanization in Asia, Africa and Latin America
AMA, Agricultural Mechanization in Asia, Africa and Latin America (ISSN: 00845841) is a peer-reviewed journal. The journal covers Agricultural and Biological Sciences and all sort of engineering topic. the journal's scopes are in the following fields but not limited to:
Agricultural and Biological Sciences
Electrical Engineering and Telecommunication
Electronic Engineering
Computer Science & Engineering
Civil and architectural engineering
Mechanical and Materials Engineering
Transportation Engineering
Industrial Engineering
Industrial and Commercial Design
Information Engineering
Chemical Engineering
Food Engineering
Influence of Rearing systems on Carcass characteristics of F3 crossbred chicken at 12 and 40 weeks of Age
The newly developed synthetic chicken variety has been evolved through the crosses of Native, PB2 and Dahlem Red (F3) chicken. This cross was developed at the Poultry Demonstration and Experimental Unit (PDEU) of the College of Veterinary Science and Animal Husbandry, Anjora, Dau Shri Vasudev Chandrakar Kamdhenu Vishwavidyalaya, Durg, Chhattisgarh, India. An experimental investigation was carried out to evaluate the carcass characteristics of this crossbred population at two physiological stages, namely 12 and 40 weeks of age, under three distinct management systems: intensive, semi-intensive, and backyard rearing conditions. For carcass trait assessment, a total of six birds from each rearing system were randomly selected, comprising an equal sex ratio of three males and three females. At 12 weeks of age, birds reared under the intensive system exhibited significantly (p<0.01) higher pre-slaughter live weight and defeathered weight compared to semi-intensive and extensive systems. Among carcass cut-up parts, back, breast, wing, thigh, drumstick, and neck weights were significantly higher in intensively reared birds, followed by semi-intensive birds, while the lowest values were recorded under the extensive system. Edible organ weights such as liver and heart were also significantly higher in intensive birds; however, gizzard weight was significantly higher in birds reared under the extensive system. At 40 weeks of age, a similar trend was observed, with intensive and semi-intensive systems recording significantly higher pre-slaughter live weight, defeathered weight, and carcass cut-up part yields compared to the extensive system. Thigh, drumstick, and neck weights were significantly influenced by rearing systems, showing higher values under intensive management. Among edible organs, liver weight did not differ significantly among systems, whereas heart and gizzard weights were significantly higher in intensive birds. Overall, the study indicated that intensive rearing significantly improved carcass yield and cut-up part weights at both ages, while extensive rearing promoted greater gizzard development. These findings suggest that rearing system plays a crucial role in determining carcass quality of crossbred chickens and should be carefully considered to optimize meat production efficiency.
Therapeutic Evaluation of Buparvaquone and Oxytetracycline with Antioxidant Adjunct Therapy in Small Ruminant Theileriosis
The study evaluated the therapeutic efficacy of buparvaquone and oxytetracycline with and without antioxidant adjunctive therapy in small ruminants affected with theileriosis. The investigation was conducted at the Veterinary Clinical Complex, Veterinary College and Research Institute, Tirunelveli, from August 2024 to September 2025. Theileriosis-positive animals were randomly allocated into five groups (n = 6 each): Group I (buparvaquone alone), Group II (buparvaquone with vitamin E and selenium), Group III (oxytetracycline alone), Group IV (oxytetracycline with vitamin E and selenium), and Group V (healthy control). Clinical parameters were recorded on days 0, 3, and 9. Haematological indices, serum biochemical profiles, and oxidative stress markers were analysed. Data were subjected to one-way ANOVA, with P ≤ 0.05 considered statistically significant. All treated groups showed progressive clinical improvement from day 3 to day 9, with Group II demonstrating the most rapid and consistent recovery. Rectal temperature, heart rate, and respiratory rate declined significantly in all treated groups (P ≤ 0.05), and superficial lymph node enlargement resolved by day 9. Anaemia evident on day 0, characterized by reduced haemoglobin, packed cell volume, and total erythrocyte count, improved significantly by day 9, with Group II attaining values closest to normal. Differential leukocyte counts also normalized following treatment. Biochemical analysis indicated hepatic involvement on day 0, with elevated aspartate transaminase, alkaline phosphatase, and bilirubin concentrations, which declined significantly after therapy (P ≤ 0.05). Hypoproteinaemia and hypoalbuminaemia showed marked improvement, particularly in Group II, and blood urea nitrogen levels decreased significantly. Malondialdehyde levels were significantly elevated initially, while superoxide dismutase and glutathione peroxidase activities increased significantly by day 9, with maximum improvement in Group II. The study concludes that both buparvaquone and oxytetracycline are effective for treating small ruminant theileriosis, and adjunctive antioxidant supplementation significantly enhances therapeutic response, with buparvaquone plus antioxidants showing superior overall recovery.
Variation in soil physical properties of a Vertisol by land use practices and soil depths
Field study was conducted at Borlaug Institute for South Asia (BISA) Research Farm, Lakhanwada, Jabalpur (Madhya Pradesh) to evaluate the changes in soil physical properties of a Vertisol by different land use practices and soil depths after harvest of Kharif and Rabi seasons of 2015-16 and 2016-17. In this study, we investigated the variation in soil physical properties across seven land use practices i.e. L1: Uncultivated, L2: rice-wheat system with conventional agriculture (CT), L3: rice-wheat system with conservation agriculture (CA), L4: soybean-wheat system with CT, L5: soybean-wheat system with CA, L6: maize-wheat system with CT and L7: maize-wheat system with CA. Soil samples were collected from seven land use practices and three soil depths (0-5 cm, 5-15 cm and 15-30 cm) for analysed the soil physical properties. For statistical analysis of data in split plot design, land use practices were considered as main plot and depth (0-5 cm, 5-15 cm and 15-30 cm) as sub-plot treatments with three replications. The results showed significant differences between the land uses in soil physical properties. It was found that bulk density of soil after harvest of kharif crops varied from 1.32 to 1.51 Mg m-3 and 1.32 to 1.49 Mg m-3, and after harvest of rabi crops 1.33 to 1.49 Mg m-3 and 1.30 to 1.48 Mg m-3 during 2015-16 and 2016-17, respectively with highest bulk density in L1 (uncultivated land) treatment. It was also found that infiltration rate under rice-wheat (R-W) system with CT in kharif season during both the years was much lower than that under R-W system with CA, while in rabi season the IR was comparable under different cropping systems but higher under CA as compared to CT. Variation in fractions of largest water stable aggregates (>5 mm) with soil depth during 2015-16 ranged from 5.2 to 6.8% (kharif) and 5.8 to 7.6% (rabi), while in 2016-17 the values varied from 6.4 to 8.5% (kharif) and 7.8 to 9.1% with highest value for 0-5 cm and lowest in 15-30 cm depth. Data clearly indicated that maximum (1.26, 1.34, 1.40, and 1.42 mm) and minimum (1.06, 1.14, 1.17 and 1.23 mm) mean weight diameters of soil aggregates after harvest of four crop cycles, respectively were obtained under L1 (uncultivated) and L6 (maize-wheat with CT) treatments, respectively.
CONSTRAINT ANALYSIS AND STRATEGIES FOR IMPROVEMENT OF TURMERIC ACREAGE IN MAHABUBABAD DISTRICT OF TELANGANA, INDIA
India leads the world in terms of turmeric production, consumption and exports. Turmeric farming is a key agricultural activity in certain parts of Mahabubabad district of Telangana, India. However, farmers in this area face constraints that hinder their productivity and economic stability. The present study aims to enhance the sustainability and profitability of turmeric farming in Mahabubabad district, ensuring a stable livelihood for the farmers. In the present study, specific challenges encountered by the turmeric farmers of Kesamudram and Nellikuduru mandals of Mahabubabad district were investigated, focusing on technical, economic, marketing, storage, and general constraints. Ex-post facto research design was employed where a proportionate random sampling technique was used to select 120 respondents from six villages i.e., three villages from each of the above selected mandals. An interview schedule was added as a data collection tool to strengthen the study, as it allows for a structured approach to gather information directly from the respondents, ensuring the reliability and validity of the findings. The data gathered were compiled and subjected to statistical analysis procedures like cumulative frequency method, percentage analysis and ranking method. The findings revealed that high fluctuations in market prices, pest and disease outbreaks, inadequate storage facilities and lack of technical guidance were the most critical issues. Economic challenges such as high input costs, difficulty in securing loans and insufficient subsidies further exacerbated the situation. Marketing constraints including poor infrastructure, transportation and absence of regulated markets often made farmers to resort to distress sales. Labour shortage further increased their burden. To address these challenges, strategies like promotion of integrated pest management (IPM) programmes, establishment of community based storage facilities and strengthening of farmer producing organizations (FPOs) and cooperatives were proposed to enhance farmers’ bargaining power. Additionally, introducing government-backed procurement systems with minimum support prices (MSP) and improving access to financial services are recommended as the solutions.
Integrated effect of sowing dates, planting methods and irrigation on growth, water use and productivity of wheat
A field experiment with three sowing dates (D1-November 5th, D2-November 15th and D3-November 25th) in the main plot and ten treatments in sub plots (control (flat planting (FP) with 100 per cent irrigation (I1)) along with combination of three bed widths (37.5 (BP1), 75 (BP2) and 112.5 cm (BP3)) and three irrigation levels (80 (I2), 60 (I3) and 40 (I4) per cent of I1) was conducted during the rabi 2019-20 and 2020-21 in split plot design with three replications. During both seasons, D1 recorded significantly higher plant height, leaf area index, dry matter accumulation, grain yield, straw yield and water productivity of wheat compared to D2 and D3. Wheat evapotranspiration (ET) of was at par in D1 and D2 but significantly higher than D3. Evapotranspiration was at par in FPI1, BP1I2, BP2I2 and BP3I2 but significantly higher than BP1I3, BP1I4, BP2I3, BP2I4, BP3I3 and BP3I4. Plant growth parameters, grain and straw yield was at par in FPI1, BP2I2 and BP1I2 but significantly higher than BP3I3 indicating 20 per cent water saving. At all irrigation levels, BP2 showed maximum yield followed by BP1 and BP3. Crop water productivity was at par in BP2I2, FPI1, BP1I2 and BP3I2 but significantly higher than BP1I4, BP2I4 and BP3I4. Harvest index was significantly higher in early sowing and in deficit irrigation regimes.