scholarly journals The Roles of Additive Effect between Swine Keeping Systems and Agro-Ecological Zones in Production and Socioeconomic Traits

2020 ◽  
Vol 15 (3) ◽  
pp. 242-250
Author(s):  
D. A. Iyai ◽  
M. Sagrim ◽  
S. Pakage ◽  
A. G. Murwanto
Keyword(s):  
Field Study ◽  
Farming System ◽  
Work Hours ◽  
Situation Analysis ◽  
Ecological Zones ◽  
Income Sources ◽  
Size Number ◽  
Body Weights ◽  
Middle Man ◽  
Agro Ecological Zones

The aim of this research was to characterize swine farming system performances tethered under different agro-ecological zones in Papua. The field study was done in Manokwari regency and involved six districts, i.e. Nothern Manokwari district, Eastern Manokari District, Western Manokwari district, Warmare district, Prafi district and Masni district. Respondents chosen were guided by local extensions, originated from 15 villages. Participatory situation analysis (PSA) was employed to approach swine farmers by using questionnaire. Swine body weights of swinelets and growers were weighed except for mature swine, body lengths and hearth girths were measured using tape. Herd number, number of swinelets, adult swine were recorded. A one-way analysis of variances was used. All data were entered in Excel and analyzed using SPPS version 10.0.. The findings shown that interaction between education and keeping systems occur on work hours and ages. Effect of education is significant on experience, location, and ethnic. In keeping systems, effect is real on experience, work hours, location, and ethnic. Interaction do not significant exist in number of swine including see middle man, visited consumer, litter size, number of farrowing and income sources.

scholarly journals Interaction effects of pig farming systems with educational level on performances of pig production systems in Manokwari District, West Papua-Indonesia

2021 ◽  
Vol 3 (1) ◽  
pp. 32-40
Author(s):  
Desni T.R. Saragih ◽  
Deny Anjelus Iyai ◽  
Hans Mamboai ◽  
Dwi Nurhayati ◽  
Maria Arim ◽  
...  
Keyword(s):  
Production Systems ◽  
Farming Systems ◽  
Farming System ◽  
Work Hours ◽  
Ecological Zones ◽  
Income Sources ◽  
Pig Farming ◽  
Size Number ◽  
Body Weights ◽  
Middle Man

The aim of this research was to characterize pig farming system performances tethered under different agro-ecological zones in Papua. The field study was done in Manokwari regency and involved six districts, i.e. Nothern Manokwari district, Eastern Manokari District, Western Manokwari district, Warmare district, Prafi district and Masni district. Respondents chosen were guided by local extensionists, originated from 15 villages. Participatory situation analysis (PSA) was employed to approach pig farmers by using questionnaire. Pig body weights of piglets and growers were weighed except for mature pigs, body lengths and hearth girths were measured using tape. Herd number, number of piglets, adult pigs were recorded. A one-way analysis of variances was used. All data were entered in Excel and analyzed using SPPS version 10.0.. The findings shown that interaction between education and keeping systems occur on work hours and ages. Effect of education is significant on experience, location, and ethnic. In keeping systems, effect is real on experience, work hours, location, and ethnic. Interaction do not significant exist in number of pigs including see middle man, visited consumer, litter size, number of farrowing and income sources.

scholarly journals Genetic diversity of aflatoxin-producing Aspergillus flavus isolated from groundnuts in selected agro-ecological zones of Uganda

2019 ◽  
Author(s):  
Amos Acur ◽  
Renée S. Arias ◽  
Steven Odongo ◽  
Samuel Tuhaise ◽  
Joseph Ssekandi ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Aspergillus Flavus ◽  
Lake Victoria ◽  
Farming System ◽  
Aspergillus Species ◽  
Lake Victoria Basin ◽  
West Nile ◽  
Ecological Zones ◽  
Post Harvest ◽  
Agro Ecological Zones

Abstract Background Aspergillus is the main fungal genus causing pre- and post-harvest contamination of groundnuts. Aspergillus flavus belongs to section Flavi, a group consisting of both the aflatoxigenic species (A. flavus, A. parasiticus and A. nomius) and non-aflatoxigenic species (A. oryzae, A. sojae and A. tamarii). Aflatoxins are food-borne toxic secondary metabolites produced by Aspergillus species, causing hepatic carcinoma and stunting in children and are the most toxic carcinogenic mycotoxins ever identified. Despite the well-known public health problems associated with aflatoxicosis in Uganda, information about the genetic diversity of the main aflatoxin causing fungus, Aspergillus flavus in this country is still limited. Results A cross-sectional survey was therefore carried out in three main groundnut-growing agro-ecological zones (AEZs) of Uganda; West Nile farming system, Lake Kyoga basin mixed farming system and Lake Victoria basin farming system. This was to assess the genetic diversity of A. flavus and to establish the contamination rates of groundnuts with Aspergillus species at pre- and post-harvest stages. Out of the 213 A. flavus isolates identified in this study, 96 representative isolates were fingerprinted using 16 insertion/deletion microsatellite markers. Data from fingerprinting were analyzed through Neighbor Joining while polymorphism was determined using Arlequin v 3.5. The pre- and post-harvest contamination rates were; 2.5% and 50.0% (West Nile farming system), 55.0% and 35.0% (Lake Kyoga basin mixed farming system) and 32.5% and 32.5% (Lake Victoria basin farming system) respectively. The Chi-square test showed no significant differences between pre- and post-harvest contamination rates among AEZs (p = 0.199). Only 67 out of 96 isolates produced suitable allele scores for genotypic analysis. Analysis of genetic diversity showed higher variation within populations than among populations. Two major clusters (aflatoxigenic and non-aflatoxigenic isolates) were identified as colonizing groundnuts at pre- and post-harvest stages. Conclusions These findings provide a first insight on the existence of non-aflatoxigenic strains of A. flavus in Uganda. These strains are potential candidates for developing local Aspergillus bio-control agent.

scholarly journals Towards Understanding Variability in Droughts in Response to Extreme Climate Conditions over the Different Agro-Ecological Zones of Pakistan

2021 ◽  
Vol 13 (12) ◽  
pp. 6910
Author(s):  
Adil Dilawar ◽  
Baozhang Chen ◽  
Arfan Arshad ◽  
Lifeng Guo ◽  
Muhammad Irfan Ehsan ◽  
...  
Keyword(s):  
Pearson Correlation ◽  
Principal Component ◽  
Mitigation Strategies ◽  
Precipitation Extremes ◽  
Climate Mitigation ◽  
Mean Annual Temperature ◽  
Climate Extreme ◽  
Ecological Zones ◽  
The Mean ◽  
Agro Ecological Zones

Here, we provided a comprehensive analysis of long-term drought and climate extreme patterns in the agro ecological zones (AEZs) of Pakistan during 1980–2019. Drought trends were investigated using the standardized precipitation evapotranspiration index (SPEI) at various timescales (SPEI-1, SPEI-3, SPEI-6, and SPEI-12). The results showed that droughts (seasonal and annual) were more persistent and severe in the southern, southwestern, southeastern, and central parts of the region. Drought exacerbated with slopes of −0.02, −0.07, −0.08, −0.01, and −0.02 per year. Drought prevailed in all AEZs in the spring season. The majority of AEZs in Pakistan’s southern, middle, and southwestern regions had experienced substantial warming. The mean annual temperature minimum (Tmin) increased faster than the mean annual temperature maximum (Tmax) in all zones. Precipitation decreased in the southern, northern, central, and southwestern parts of the region. Principal component analysis (PCA) revealed a robust increase in temperature extremes with a variance of 76% and a decrease in precipitation extremes with a variance of 91% in the region. Temperature and precipitation extremes indices had a strong Pearson correlation with drought events. Higher temperatures resulted in extreme drought (dry conditions), while higher precipitation levels resulted in wetting conditions (no drought) in different AEZs. In most AEZs, drought occurrences were more responsive to precipitation. The current findings are helpful for climate mitigation strategies and specific zonal efforts are needed to alleviate the environmental and societal impacts of drought.

Stock and stability of organic carbon in soils under major agro-ecological zones and cropping systems of sub-tropical India

2021 ◽  
Vol 312 ◽  
pp. 107317
Author(s):  
Nirmalendu Basak ◽  
Biswapati Mandal ◽  
Ashim Datta ◽  
Manik Chandra Kundu ◽  
Arvind Kumar Rai ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Cropping Systems ◽  
Ecological Zones ◽  
Agro Ecological Zones

scholarly journals Comparative Experimental Effects of Intercropping and Cypermethrin on Insect Pest Infestation and Yield of Maize, Cowpea and Okra in Two Cameroonian Agro-Ecological Zones

2021 ◽  
Vol 3 (2) ◽  
pp. 383-393
Author(s):  
Patient Farsia Djidjonri ◽  
Nukenine Elias Nchiwan ◽  
Hartmut Koehler
Keyword(s):  
Field Experiments ◽  
Insect Pests ◽  
Cropping Systems ◽  
Insect Pest ◽  
Maize Yield ◽  
Ecological Zones ◽  
Pest Infestation ◽  
Final Yield ◽  
Cropping Seasons ◽  
Agro Ecological Zones

The present study investigates the effect of intercropping (maize-cowpea, maize-okra, maize-okra-cowpea, okra-cowpea) compared to insecticide application on the level of infestation of insect pests and the final yield of maize, cowpea and okra. Field experiments were conducted during the 2016 and 2017 cropping seasons in the Guinean Savannah (Dang-Ngaoundere) and Sudano Sahelian (Gouna-Garoua) agro-ecological zones in Cameroon. Our experimental design was a split plot arrangement in a randomized complete block with four replications. The main factor was assigned to the use of insecticide (Cypermethrin) and sub plots were devoted for cropping systems. We compared the efficiency of intercropping to that of Cypermethrin application on the Yield of maize, cowpea and okra as influenced by insect pest damages. The comparison of monocropped sprayed by Cypermethrin to unsprayed showed that, in Dang, insect pests reduced maize yield by 37% and 24% in 2016 and 2017, respectively, whereas in Gouna, it was lower than 8% during the both years. Reduction in seed yield by insect pests on cowpea in Dang represented 47% and 50% in 2016 and 2017, respectively, whereas in Gouna, it was 55% and 63% in 2016 and 2017, respectively. For okra, insect pests reduced okra fruit yield by 25% and 44% in Dang and 23% and 28% in Gouna, respectively, in 2016 and 2017. Crop yield was lower in intercropping compared to monoculture due to competition of plants in association on different resources. Considering the total yields obtained from each intercropping, intercropping trials resulted generally in higher yields compared to mono-culture (LER > 1) in both sites and years but the respective yields were quite different. On the basis of the results obtained, we recommend maize-cowpea intercropping as a sustainable solution to reduce the infestation level of their pest insects.

Evaluation of potential crop productivity based on remote sensing and agro-ecological zones around the world

2017 ◽  
Vol 33 (7) ◽  
pp. 713-722
Author(s):  
Hongyan Wang ◽  
Qiangzi Li ◽  
Xin Du ◽  
Longcai Zhao ◽  
Na Wang
Keyword(s):  
Remote Sensing ◽  
Crop Productivity ◽  
Ecological Zones ◽  
The World ◽  
Agro Ecological Zones
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