Lice infestation in village chicken and management practices of keepers in Ilorin, North Central Nigeria

Regional prevalence of soybean Sclerotinia stem rot (SSR), caused by Sclerotinia sclerotiorum, was modeled using management practices (tillage, herbicide, manure and fertilizer application, and seed treatment with fungicide) and summer weather variables (mean monthly air temperature and precipitation for the months of June, July, August, and September) as inputs. Logistic regression analysis was used to estimate the probability of stem rot prevalence with disease data from four states in the north-central region of the United States (Illinois, Iowa, Minnesota, and Ohio). Goodness-of-fit criteria indicated that the resulting model explained well the observed frequency of occurrence. The relationship of management practices and weather variables with soybean yield was examined using multiple linear regression (R 2 = 0.27). Variables significant to SSR prevalence, including average air temperature during July and August, precipitation during July, tillage, seed treatment, liquid manure, fertilizer, and herbicide applications, were also associated with high attainable yield. The results suggested that SSR occurrence in the north-central region of the United States was associated with environments of high potential yield. Farmers' decisions about SSR management, when the effect of management practices on disease prevalence and expected attainable yield was taken into account, were examined. Bayesian decision procedures were used to combine information from our model (prediction) with farmers' subjective estimation of SSR incidence (personal estimate, based on farmers' previous experience with SSR incidence). MAXIMIN and MAXIMAX criteria were used to incorporate farmers' site-specific past experience with SSR incidence, and optimum actions were derived using the criterion of profit maximization. Our results suggest that management practices should be applied to increase attainable yield despite their association with high disease risk.

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An Evaluation of Village Chicken Management Practices in Bauchi State, Nigeria

Nigerian Veterinary Journal ◽

10.4314/nvj.v40i1.5 ◽

2019 ◽

Vol 40 (1) ◽

pp. 56

Author(s):

A.G. Sule ◽

J.U. Umoh ◽

P.A. Abdu ◽

J. Kabir ◽

G.S.N. Kia

Keyword(s):

Management Practices ◽

Village Chicken

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Management Practices, Constraints, Opportunities and Marketing Systems of Village Chicken Production in Central Ethiopia

10.7176/fsqm/98-05 ◽

2020 ◽

Keyword(s):

Management Practices ◽

Village Chicken ◽

Central Ethiopia ◽

Marketing Systems

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Key management practices that explain soybean yield gaps across the North Central US

10.31274/icm-180809-233 ◽

2017 ◽

Author(s):

Shawn Conley

Keyword(s):

Key Management ◽

Management Practices ◽

North Central ◽

Soybean Yield ◽

The North ◽

Yield Gaps

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Benthic communities under anthropogenic pressure show resilience across the Quaternary

Royal Society Open Science ◽

10.1098/rsos.170796 ◽

2017 ◽

Vol 4 (9) ◽

pp. 170796 ◽

Cited By ~ 10

Author(s):

Julieta C. Martinelli ◽

Luis P. Soto ◽

Jorge González ◽

Marcelo M. Rivadeneira

Keyword(s):

Management Practices ◽

Benthic Communities ◽

Anthropogenic Factors ◽

Anthropogenic Pressure ◽

North Central ◽

Central Chile ◽

Species Abundances ◽

Mollusc Species ◽

Evenness Indices ◽

Benthic Resources

The Southeast Pacific is characterized by rich upwelling systems that have sustained and been impacted by human groups for at least 12 ka. Recent fishing and aquaculture practices have put a strain on productive coastal ecosystems from Tongoy Bay, in north-central Chile. We use a temporal baseline to determine whether potential changes to community structure and composition over time are due to anthropogenic factors, natural climatic variations or both. We compiled a database ( n = 33 194) with mollusc species abundances from the Mid-Pleistocene, Late Pleistocene, Holocene, dead shell assemblages and live-sampled communities. Species richness was not significantly different, neither were diversity and evenness indices nor rank abundance distributions. There is, however, an increase in relative abundance for the cultured scallop Argopecten , while the previously dominant clam Mulinia is locally very rare. Results suggest that impacts from both natural and anthropogenic stressors need to be better understood if benthic resources are to be preserved. These findings provide the first Pleistocene temporal baseline for the south Pacific that shows that this highly productive system has had the ability to recover from past alterations, suggesting that if monitoring and management practices continue to be implemented, moderately exploited communities from today have hopes for recovery.

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