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
In- vitro efficacy of essential oils, Cinnamon and Tea tree oil against E. coli, S. aureus, and Klebsiella sp. isolated from Buffaloes Suffering from Subclinical Mastitis
Cinnamon and Tea tree oil (TTO), an essential oils and plays an important role in antibacterial activity and anti-inflammatory properties. Present study was designed for the in-vitro efficacy of essential oils, Cinnamon and Tea tree oil, against common mastitis causing organisms namely S. aureus E. coli. and Klebsiella sp. A total 360 buffaloes were screened and in- vitro efficacy of essential oils were studied by disc diffusion sensitivity test. It was observed that the antibiogram revealed that E.coli. were 100% sensitive to Cinnamon and TTO. The average zone of inhibition for cinnamon and tea tree oil was 20.50 mm±0.83, and 13.25 mm± 1.10. The zone of inhibition obtained by enrofloxacin was 22.00 mm ± 1.60. Staphylococcus aureus isolates were sensitive to Cinnamon and Tea tree oil showing zone of inhibition to the extent of 16.50 mm ± 0.56, 12.50 mm ± 0.86 respectively in comparison to 21.50 mm± 0.56 for enrofloxacin zone. The zone of inhibition against Klebsiella sp. were maximum for Enrofloxacin 20.00 mm ± 1.72 followed by Cinnamon oil 17.83mm ± 0.48 and Tea tree oil 14.17 mm ± 0.73.
Physiological Stage-Specific Liver Enzyme Variations in Jersey Crossbred Cows
A comparative study on Physiological Stage-Specific Liver Enzyme Variations in Jersey Crossbred Cows was done. A total of 72 healthy Jersey crossbred cattle (n=72), including 12 female calves and adult cows aged 3-6 years with a good body condition score (5-6 out of 10) were selected. They were divided into six groups, each group comprised of twelve (n=12) animals, Group 1: female calves, Group 2: heifers, Group 3: pregnant lactating, Group 4: non-pregnant lactating, Group 5: pregnant dry and Group 6: non-pregnant dry Jersey crossbred cows. Serum AST, ALT and LDH were higher in heifers than female calves whereas ALP, GGT and CK were higher in female calves than heifers. Due to increased liver activity and metabolic demands in heifers associated with growth and development. In growing calves, higher ALP levels observed due to active bone formation and skeletal growth. Calves have higher levels of GGT due to liver growth and developing state and increased metabolic activity during growth. High CK levels in calves due to rapid muscle growth and development. The pregnant lactating group had higher AST, ALT ALP and GGT followed by non-pregnant lactating group. This might be due to higher metabolic activity and liver function to support milk production and fetal growth during pregnancy and lactation. However, in nonpregnant lactating cows, without the additional demands of pregnancy, the levels might be slightly lower than in pregnant lactating cows. As compared to heifers, nonpregnant dry group had lower serum AST, ALT, ALP and GGT. During the dry period, cows are not producing milk, but pregnancy still requires significant liver function for supporting fetal development, contributing to elevated AST levels. Serum LDH was higher in pregnant dry G 5 followed by non-pregnant dry G 6. Pregnancy requires significant metabolic support for fetal development, contributing to elevated LDH levels in G 5 than G 6. However, in G 3 and G 4, the demands of both lactation and pregnancy increase LDH levels due to higher metabolic activity and tissue turnover to support milk production and fetal growth. Among all the groups, serum CK was highest in the nonpregnant dry group followed non-pregnant lactating group.
Farmers’ satisfaction with climate-resilient agriculture technologies in the coastal low-lying region of Kerala
The present study was intended to measure farmers’ satisfaction with climate-resilient agriculture (CRA) technologies demonstrated by Krishi Vigyan Kendra-Alappuzha in the coastal low-lying region of Kerala. A total of six technologies and 100 beneficiary farmers were selected randomly for the purpose of this study. Farmers’ satisfaction with each CRA technology was analyzed on the basis of its capacity to address climate-related issues. Primary data were collected from the beneficiary farmers using a schedule on a five-point continuum with a score ranging from 4 to 0. The CRA technologies were then ranked using a satisfaction index, and the most satisfied CRA technology was identified with the help of Duncan’s Multiple Range Test (DMRT). Furthermore, the Mann-Whitney U test was employed for the comparative analysis of the CRA technologies related to both crop production and livestock rearing as per the perceived farmers’ satisfaction. The results revealed that the farming community was highly satisfied with all of the CRA technologies, except two, i.e., intercropping short-duration cassava, related to crop production, and EnerFAT, related to livestock rearing. The comparative analysis of the CRA technologies revealed that there was no significant difference between the perceived levels of farmers’ satisfaction with crop-related technologies and livestock-related technologies.
Effect of soil salinity on germination and survival of tomato (Solanum lycopersicum L.)
The study was conducted at the Vegetable Research Farm, Department of Vegetable Science, Punjab Agricultural University, Ludhiana to study the effect of soil salinity on germination and survival of tomato. The 2 dS/m, 4 dS/m, and 6 dS/m levels of salinity were induced by using sodium chloride, magnesium sulphate and calcium chloride in ratio 2:1:1. Seeds from 155 tomato genotypes were sown in plug trays, with each genotype having two sets of trays. For one set, normal water (tab) was used initially, and then saline water was applied after the seedlings reached the two-leaf stage (10-12 days after sowing). For the second set, saline water was applied immediately after sowing to evaluate germination under salt stress. The results categorized the genotypes into 18 tolerant, 92 semi-tolerant, and 45 susceptible to salinity based on nursery and morphological screening trials. Among the 18 tolerant genotypes, PTNI-203, PTNI-202, and PTNI-8 were suggested for further research in salt-affected areas.
SPECTROPHOTOMETRIC ANALYSIS OF NECTAR SUGAR COMPOSITION BY DIFFERENT BEE PLANT SPECIES
The investigations entitled “Spectrophotometric analysis of nectar sugar composition by different bee plant species” were carried out at G.B. Pant University of Agriculture and Technology, Pantnagar during the year 2020-21. Among the three species of mustard, highest total sugar content (0.384±0.018 mg/flower) was recorded at 24 hours of flower opening in B. rapa var. yellow sarson, while minimum total sugar content was recorded just after opening of flowers (0 hours). Mean sugar concentration per flower was highest (33.34 per cent) in B. rapa var. toria, whereas least (27.26 per cent) in B. juncea. The total energy present per flower per day was highest in B. rapa var. yellow sarson with 0.37; 6.43; 8.63 and 4.58 J/flower/day at 0; 24; 48 and 72 hours respectively, and least in B. rapa var. toria with 0.25; 4.84; 3.88 and 2.75 J/flower/day at 0; 24; 48 and 72 hours. Furthermore, highest mean nectar sugar composition of glucose (51.33±0.41) was recorded in B. rapa var. toria, fructose in B. rapa var. yellow sarson (44.27±0.35) and highest sucrose concentration was found in B. juncea (0.605±0.047). Among the other eight bee forage plant species, berseem flowers were found to be richest floral nectar resource with highest total sugar content (0.672±0.009 mg/flower), total nectar sugar concentration (38 per cent), energy per flower per day (11.24 J at 72 hours) and carbohydrate composition with glucose (53.12±0.015), fructose (36.21±0.179) and sucrose concentration (4.29±0.006).