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)
07 May 2026 (Vol - 57 , Issue- 05 )
31 May 2026 (Vol - 57 , Issue 05 )
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 Moisture Content on the Engineering and Thermal Characteristics of Charota (Cassia tora) Seeds
Moisture-dependent physical and thermal properties of charota (Cassia tora L.) seeds were evaluated at six moisture levels ranging from 5.13% to 28.55% (db) to generate engineering data relevant to seed handling and processing. Seed dimensions, including length, width and thickness, increased significantly with increasing moisture content, resulting in corresponding increases in arithmetic mean diameter, geometric mean diameter and test weight. Sphericity, surface area, volume and aspect ratio also showed statistically significant variation (p ≤ 0.05) across moisture levels. Bulk density and true density decreased progressively as moisture content increased, whereas porosity exhibited a non-linear trend, initially increasing and subsequently decreasing at higher moisture levels. The angle of repose increased consistently with increasing moisture, indicating reduced flowability of the seeds. The coefficient of friction varied with contact surface and was highest on rubber, followed by mild steel and plywood, and lowest on glass. Thermal conductivity increased with increasing moisture content, while thermal resistivity decreased correspondingly. The observed changes in physical and thermal properties highlight the strong influence of seed moisture on handling, storage and processing behaviour. These findings provide fundamental engineering parameters for the design and optimization of equipment for cleaning, grading, drying and storage of charota seeds.
Clamp Rod Internal Fixation (Vet Fix) for the management of diaphyseal femoral fractures in dogs – a review of six cases
The study was conducted on six clinical cases of diaphyseal femur fractures in dogs of both sex and age ranging from 6 months to 4 years. A Vet Fix system was developed for the present study. This system was used for management of unstable diaphyeseal fractures of long bones. Vet Fix provided axial stability and the clamp and screw controlled shortening and torsional forces. Cases presenting with the history and radiography suggestive of femur fracture were selected for this study. Based on the fracture plan made from preoperative radiographs the implants were selected. The Vet Fix system was applied on the lateral aspect of the femur. The rod was contoured to the shape of the bone during the time of surgery and the clamps were arranged depending upon the fracture configuration intraoperatively. Four dogs started normal weight bearing at rest but favoured affected limb while walking on the second post operative day. Two dogs started partial weight bearing at rest and did not bear weight on affected limb while walking. Primary healing was observed in four dogs. Two dogs showed uneven periosteal reaction with periosteal and intercortical callus indicating secondary healing in progress. The post operative complications encountered was loosening of distal clamp was noticed in one dog and migration of rod through the skin in one dog. Vet Fix system provided adequate stability in combination with ancillary implants such as intramedullary pin and cerclage wire.
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.