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)
18 Jan 2026 (Vol - 57 , Issue- 01 )
31 Jan 2026 (Vol - 57 , Issue 01 )
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
Transitional Cell Carcinoma(TCC) in dogs: Incidence and Cytological diagnosis of 45 cases in Chennai
Transitional cell carcinoma (TCC) was diagnosed in 45 dogs based on cytological examination of urine samples. Breed-wise, the highest incidence was observed in non-descript and Labrador Retriever breeds. Males and dogs aged between 5 to 10 years were most frequently affected, as revealed by sex and age-wise analysis. Cytologically, neoplastic transitional cells were observed both as individual cells and in multifocal clusters. The neoplastic cells exhibited marked anisocytosis and anisokaryosis. The nuclei were predominantly round to ovoid in shape, often containing multiple prominent nucleoli. Additional nuclear abnormalities including binucleation, multinucleation, and nuclear moulding were also observed. The cytoplasm of neoplastic cells appeared deeply basophilic, with varying numbers and sizes of cytoplasmic vacuoles. Urinary tract infection (UTI) was concurrently diagnosed in 11 cases (78.57%). Bacterial culture of urine samples from dogs diagnosed with TCC revealed the presence of Staphylococcus spp., Escherichia coli, and Pseudomonas spp.
Mesothelioma in dogs: Cytological findings and Incidence profile of 33 cases in Chennai
Mesothelioma was diagnosed in 33 dogs based on cytological examination of clinical samples which accounted to an incidence of 0.59% of the total tumours diagnosed during the period. The highest incidence of mesothelioma was recorded in Labrador and non-descript breeds, males, and dogs of age group 5-10 years in breed, sex and age wise analysis of tumour incidence. 22(66.67%) cases of mesothelioma were diagnosed in pleural effusions and 11(33.33%) cases were diagnosed from pericardial effusion. Cytologically clusters of hyperchromic round to polygonal neoplastic cells containing round to oval nuclei, prominent nucleoli along with marked anisocytosis, anisokaryosis, increased nuclear-to-cytoplasmic (N:C) ratio, basophilic cytoplasm, binucleation and multinucleation were observed which was diagnostic of mesothelioma.
Effects of Inorganic Fertilizers on the growth parameters, yield, bulb quality parameters, and identifying optimal fertilizer rates in onion (Allium cepa L.) cultivation in the Mid-Hills of Himachal Pradesh
This study evaluated the effects of inorganic fertilizers on growth, yield, bulb quality, and optimal fertilizer rates in onion (Allium cepa L.) cultivation in the Mid-Hills of Himachal Pradesh. A field trial in 2021 tested nine treatments with varying recommended doses (RD) of nitrogen (N), phosphorus (P), potassium (K), and sulphur (S). Significant differences were observed in plant height, fresh bulb weight, marketable yield, bulb diameter, nutrient content, and total soluble solids (TSS) across treatments. The T₂ treatment [100% RD (P, K, S) + 125% N] produced the highest plant height (51.9 cm), fresh bulb weight (88.2 g), yield (310 q/ha), and TSS (12.53°B), closely followed by T₈ [100% RD (N, P, K) + 125% S]. Yield improvements of 13.88% (T₂) and 10.17% (T₈) were recorded over the control. The highest plant nitrogen (2.67%), phosphorus (0.37%), and sulphur (0.45%) contents were observed in T₃, T₄, and T₈, respectively. Results highlight the critical roles of nitrogen and sulphur in enhancing productivity and the risks of nutrient imbalance. For sustainable production, applying 100% RD of P, K, and S with 125% N (T₂), or 100% RD of N, P, and K with 125% S (T₈) is recommended. Future research should integrate these findings with precision farming to improve nutrient-use efficiency and minimize environmental impact.
Multivariate Analysis between Indian and Exotic Gladiolus (Gladiolus grandiflorus L.) Genotypes Based on Qualitative Traits
A study was conducted in the Department of Floriculture, Medicinal and Aromatic Plants, Uttar Banga Krishi Viswavidyalaya, Cooch Behar, West Bengal, India in the year 2022 and 2023 to evaluate thirty gladiolus genotypes and classifying them into clusters as a pre-breeding exercise to select genotypes with maximum dissimilarity. The genotypes included both Indian and exotic varieties which were collected from different parts of India. Considering sixteen qualitative traits, as described in DUS testing guidelines, Shannon’s and Simpson’s diversity analyses were performed to indicate the characters that are primarily responsible for the dissimilarity between the genotypes and also to identify the qualitative traits worthy to be considered while selection of parents for breeding programmes. Shannon’s and Simpson’s indices, deducted for all the sixteen qualitative characters, were found to be maximum in Flower main colour (H) and Inner tepal: colour of stripe (D) – the characters primarily used to identify genotypes phenotypically. The germplasm was further classified following UPGMA cluster analysis and five major clusters were formed. The genetic distance between the thirty genotypes ranged from 29% to 75% where cv. Arka Kesar, cv. Arka Gold, cv. Pusa Dhanvantri and cv.Punjab Lemon Delight were found to have maximum genetic distance with most other genotypes under study.
Characterization and In vitro Cytotoxicity Study of Nano Copper, Nano Cobalt and Nano Zinc Synthesized by Physical Method
Nanotechnology, a rapidly advancing field, enables the reduction of particle size to below 100 nm, thereby significantly increasing surface area and enhancing mineral bioavailability. In animal nutrition, this technology is primarily applied to the development of nanominerals - particularly trace minerals with inherently low absorption efficiency. Nanominerals not only improve bioavailability but also minimize intestinal mineral antagonism, leading to reduced excretion and lower environmental contamination. In this context, copper, cobalt, and zinc nanominerals were synthesized using a physical method involving a planetary ball mill. The synthesized nanominerals were characterized for particle size, morphology, surface charge (zeta potential), crystalline structure, and functional groups. The average particle sizes of the synthesized Nano Cu, Nano Co, and Nano Zn, as determined by particle size analysis, were 51.33 nm, 74.07 nm, and 77.40 nm, respectively. The corresponding zeta potentials were -24.73 mV (Nano Cu), -18.50 mV (Nano Co), and -22.10 mV (Nano Zn), indicating good colloidal stability. Transmission Electron Microscopy (TEM) revealed that Nano Cu and Nano Co exhibited a spherical morphology, while Nano Zn displayed a hexagonal shape. The yield of nanominerals was approximately 95% for all the three minerals. The XRD analysis verified that the synthesized nanominerals were pure, as no additional characteristic peaks were observed apart from those corresponding to their respective elements. FT-IR findings confirm the successful formation of metal nanoparticles with distinct surface properties. Furthermore, an in vitro cytotoxicity assessment revealed that the viability of Vero cells in MTT assay was more than 70 % for all the three nanominerals at concentrations varying from 6.25 – 100 μg/ml. Hence, Nano Cu, Nano Co and Nano Zn can safely be incorporated in the livestock feed up to the concentration of 100ppm.