Livestock marketing studies

Examines the need and methods for studying livestock markets and routinely collect time series data on prices of livestock at local, regional and terminal markets, outlining a method for setting up a systematic collection and analysis of livestock market information. Presents a simplifed livestock marketing systems model; illustrated suggestions for data analysis; and recommendations for a national organizational framework for collecting & analyzing livestock market data

Case studies of job access and reverse commute program: 2009-2010

This report presents perceptual, mobility and employment outcomes self-reported by 573 users of 26 transportation services funded by the Job Access and Reverse Commute (JARC) program. The respondents were predominantly low income with 42 percent reporting 2008 personal incomes less than $10,000 and two-thirds of the respondents earning$20,000 or less for the same year. Nearly half the respondents have no household vehicles. Nearly three in five respondents reported that their travel has become reliable and convenient after using the services. Workers using the services have benefitted from overall reductions in the cost of commuting to work. Close to 94 percent rated the service as being important or very important in keeping their jobs. Respondents also self-reported that the services allowed them to access a job with better pay or better working conditions, and to improve their skills. Both median hourly wages and median weekly earnings are reported to have increased since using the service for those workers who use the service to commute to work and were employed in the one-month period prior to starting use of the service. Alternative reasons may exist for these wage changes, including overall changes in the economic conditions of the locations where the services operate, as well as changes in the personal conditions of the workers that are unrelated to the JARC program in the period between starting use of the service and the time of the survey, such as graduation from job-training or school, residential relocation and so on. Because of the lack of a probability sample of services, the results cannot be generalized to the entire JARC program. Detailed case studies of the 26 services yield insights into the types of benefits that are being provided overall in these cases and the planning and programmatic environment within which they operate

Intensification of livestock feed production in Ethiopian highlands: Potential and experiences of the African Highlands Initiative

Livestock production is an essential part of subsistence systems in the Ethiopian highlands. In this paper we are reviewing the role of existing feed resources, and the potential for improving feed systems and intensification pathways in an integrated way

A bilobed Gallbladder (Vesica Fellea Divisa) in Cattle Slaughtered at Jimma Municipal Abattoir, West Oromiya, Ethiopia

Gallbladder abnormalities occur rarely. The recognized abnormalities recorded so far comprised duplication, septation, abnormal position and total absence of the gallbladder. The bilobed gallbladder of the cross bred oxen slaughtered at Jimma municipality abattoir constituted two lobes separated by a deep cleft. However, the two lobes were joined at the neck and drained by one duct. Both the lobes were of equal size and filled with bile.Key words: Bilobed, Cattle, gallbladder, Jimma, Muncipal abattoi

Mineral contents of barley grains and its processed foods (kolo, porridge, bread and injera) consumed in Ethiopia

ABSTRACT. Barley (Hordeum vulgare L.) is one of the most widely cultivated stable food crops in the world. Barley grain samples were collected from four selected areas (Bahir Dar, Bure, Finote Selam and Debre Markos) of Ethiopia and four types of processed food (kolo, porridge, bread and injera) were prepared from it. The levels of essential and non-essential metals in barley grains and its processed food were determined by microwave plasma-atomic emission spectrometry after wet digestion with a mixture of HNO3 and HClO4 (5:1, v/v). The concentration (mg/kg dry weight) in the barley grains were in the ranges K (5482-6516), Mg (546-643), Ca (445-684), Mn (7.31-9.80), Fe (127-439), Cu (0.88-1.86), Zn (42.8-56.8), Pb (0.39-2.73), Cd (3.01-4.66). The concentrations of all the metals in the four types of processed barley foods showed variation among each other. The results indicate that Ethiopian barley grains and its processed foods are good source of essential metals.                     KEY WORDS: Barley, Hordeum vulgare L., Processed foods, Macro-minerals, Micro-minerals, Toxic metals   Bull. Chem. Soc. Ethiop. 2021, 35(3), 471-484. DOI: https://dx.doi.org/10.4314/bcse.v35i3.

Food and Feeding Habits of the Common Carp (Cyprinus carpio L. 1758) (Pisces: Cyprinidae) in Lake Koka, Ethiopia

Feeding habits of Cyprinus carpio was studied in Lake Koka, Ethiopia, in April and May (dry months) and July and August (wet months), 2011. The objective of the study was to identify the diet composition, seasonal variation in diet and ontogenetic dietary shift. Gut contents of435 fish were analyzed using frequency of occurrence and volumetric analysis. In frequency of occurrence method the number of gut samples was expressed as a percentage of all non-empty stomachs examined while in volumetric method the volume of each food category was expressed as a percentage of the total volume of the gut contents. Detritus, insects and macrophytes were the dominant food categories occurring in 97.0%, 85.2% and 53.3% of the guts and comprising 39.8%, 36.4% and 12.4% of the total volume of food items, respectively. The remaining food categories were of low importance in the diet. The frequency of occurrence and volumetric contributions of the different food categories of C. carpio significantly varied (U-test, p<0.05) during the dry and wet seasons. During the dry season, insects and detritus were important food categories, occurring in 94.4% and 98.6 of the guts and comprising 42.3% and 36.1% of the total volume of food, respectively. During the wet season, detritus was the most important food category. It occurred in 93.9% of the guts and accounted for 48.8% of the total volume of food. Insects and macrophytes were also important during the wet season, occurring in 68.2% and 74.3% of the guts and comprising 23.6% and 22.6% of the total volume of food, respectively. The contributions of animal origin food categories were important in the diet of juveniles whereas food of plant origin were more important in the diet of adults. However, there were no significant variations in the diet of individuals in the different size classes. Based on the results, it was concluded that C. carpio was omnivorous in its feeding habits in Lake Koka with considerable seasonal variation but insignificant onto genetic change in its diet.Keywords: Cyprinuscarpio, Lake Koka, Seasonal and Ontogenetic Variation in Diet, Ethiopia

A Quantum Theory of Cold Bosonic Atoms in Optical Lattices

Ultracold atoms in optical lattices undergo a quantum phase transition from a superfluid to a Mott insulator as the lattice potential depth is increased. We describe an approximate theory of interacting bosons in optical lattices which provides a qualitative description of both superfluid and insulator states. The theory is based on a change of variables in which the boson coherent state amplitude is replaced by an effective potential which promotes phase coherence between different number states on each lattice site. It is illustrated here by applying it to uniform and fully frustrated lattice cases, but is simple enough that it can easily be applied to spatially inhomogeneous lattice systems

On the Greenlees-May Duality and the Matlis-Greenlees-May Equivalence

Let A be a commutative unital ring and a an ideal in it. We define and study a-reduced complexes and a-coreduced complexes in both the category of chain complexes of A-modules as well as in the derived category of A-modules. We show that these two types of complexes give rise to variants of the well known Greenlees-May duality and the Matlis-Greenlees-May equivalence in the aforementioned categories.Comment: 23 page

Modeling the probability of giving birth at health institutions among pregnant women attending antenatal care in West Shewa Zone, Oromia, Ethiopia: A cross sectional study

Background: Although ante natal care and institutional delivery is effective means for reducing maternal morbidity and mortality, the probability of giving birth at health institutions among ante natal care attendants has not been modeled in Ethiopia. Therefore, the objective of this study was to model predictors of giving birth at health institutions among expectant mothers following antenatal care.Methods: Facility based cross sectional study design was conducted among 322 consecutively selected mothers who were following ante natal care in two districts of West Shewa Zone, Oromia Regional State, Ethiopia. Participants were proportionally recruited from six health institutions. The data were analyzed using SPSS version 17.0. Multivariable logistic  regression was employed to develop the prediction model.Results: The final regression model had good discrimination power (89.2%), optimum sensitivity (89.0%) and specificity (80.0%) to predict the probability of giving birth at health institutions. Accordingly, self efficacy (beta=0.41), perceived barrier (beta=-0.31) and perceived susceptibility (beta=0.29) were significantly predicted the probability of giving birth at health institutions.Conclusion: The present study showed that logistic regression model has predicted the probability of giving birth at health institutions and identified significant predictors which health care providers should take into account in promotion of institutional delivery.Key word: Institutional delivery, intention, ANC, probabilit

Pós-colheita de frutos de macaúba em ambiente com temperatura controlada: efeito sobre a água na polpa.

Este trabalho objetivou avaliar a perda de massa, a atividade de água e a estabilidade oxidativa em frutos de macaúba armazenados a 20 ºC