Agriculture

Research Papers/Topics Agriculture

COMPARATIVE EVALUATION OF DEEP-LITTER AND CAGE HOUSING SYSTEMS ON EGG PRODUCTION AND QUALITY, HEMATOLOGICAL PARAMETERS, AND SERUM METABOLITES OF WHITE LEGHORN LAYERS

Abstract: This study was conducted to evaluate the effects of deep-litter and cage housing systems on laying performance, egg quality, hematological parameters, and serum metabolites of White Leghorn layers at Haramaya University. A total of 120 White Leghorn layers at an age of 26 weeks and an average initial body weight of 1246.25± 5.65g were randomly assigned to the two housing systems in completely randomized design with three replications for study period of 90 days. The chickens were ...

Effects of Blended NPSB Fertilizer Rates on Yield and Yield Related Traits of Potato (Solanum tuberosum L.) Varieties in Oda Bultum District, Eastern Ethiopia

Abstract: Potato is an important food and cash crop in eastern Ethiopia including Oda Bultum District of West Hararghe Zone. However, there is no information on the role of blended NPSB fertilizer required to produce tuber yield and tuber quality traits of potato varieties in Oda Bultum District. A field experiment was conducted in Oda Bultum District, under rainfed during 2018 cropping season, with the objectives of assessing the effects of blended NPSB fertilizer rates on yield-related tra...

Effect of Nitrogen and Phosphorus Fertilizer Rates on Yield Components and Yield of Hybrid Maize (Zea mays L.) at Haramaya, Eastern Ethiopia

Abstract: Nitrogen and phosphorus deficiency are the most important production constraint of maize next to moisture deficiency. Therefore, a field experiment was conducted at Haramaya University main campus research station (Rare), eastern Ethiopia, using a maize hybrid xv variety (BH 661) as a test crop in the 2015 cropping season. The objectives of the study were to investigate the effects of nitrogen and phosphorus fertilizer application on growth, yield components and yield of the maize ...

Assessment of Calf Husbandry Practices in the Urban Dairy Production System and Evaluation of Milk Replacers on Performance of crossbred calf

Abstract: Calves are the foundation of the future dairy herd which signifies the importance of their proper rearing practices and needs to be performed at the herd and individual animal. This study was therefore conducted to assess calf husbandry practices in the urban dairy production system and to evaluate the effect of milk replacers on crossbred calf’s performance. The assessment was conducted in Dire Dawa city which was purposively selected based on its potential for dairy production....

Response of Bread Wheat (Triticum aestivum L.) to Nitrogen Fertilizer Management on Vertisols of Central Highlands of Ethiopia

Abstract: Nitrogen fertilizer is a major input required for cereal crop production in Ethiopia and its efficient use is important for the economic sustainability of cropping systems. Furthermore, the dynamic nature of N and its susceptibility for loss from soil-plant systems creates a unique and challenging environment for its efficient management especially on Vertisols. Developing suitable nitrogen fertilizer management practices is important strategy to improve productivity, quality and n...

Effect of Dietary Inclusion of Mango Seed Kernel Meal on Growth Feed intake, Growth Performances and Carcass Characteristics of Broilers

Abstract: A study was conducted to evaluate the effect of dietary inclusion of mango seed kernel on growth performances (feed intake, body weight gain), feed conversion ratio, carcass characteristics, mortality percentages and partial budget analysis of broiler chicks at various levels of Mango Seed Kernel (MSK) as energy supplement at Haramaya University poultry farm.168 broiler chicks with average body weight 45.17±1.08g/b/d (mean ±SD) were randomly distributed to four treatments each wi...

RESPONSE OF FABA BEAN (Vicia faba L.) TO RHIZOBIUM INOCULATION AND APPLICATION OF MINERAL PHOSPHORUS FERTILIZER IN BORE HIGHLANDS, GUJI ZONE, SOUTHERN ETHIOPIA

Abstract: Faba bean (Vicia faba L.) is an important legume grown in the highlands of Ethiopia. However, the yield of the crop is limited by a number of edaphic constraints out of which low soil fertility, low pH and reduced N2 fixation due to various biological and environmental factors are the major problem. Therefore, a field experiment was conducted at Bore Agricultural Research Center under rain-fed condition during the 2015 main cropping season to evaluate effects of Rhizobium inoculati...

EFFECT OF MIXTURES OF RUTA GRAVEOLEN (Ruta chalepensis L.), CORIANDER (Coriandrum sativum L.) AND BASIL (Ocimum basilicum) SEED EXTRACTS IN DRINKING WATER ON PRODUCTIVE PERFORMANCE

Abstract: The study was conducted to investigate the effect of mixtures of Ruta Graveolen (Ruta chalepensis L.), coriander (Coriandrum sativum L.), and basil (Ocimum basilicum) seed extracts in drinking water on productive performance, some blood profiles, egg quality, egg chemical composition, and economic benefit of white leghorn at Haramaya University poultry farm for 8 weeks. One hundred eighty White Leghorns (WL) layer at twenty- six weeks of age were randomly distributed to four treatm...

EFFECT OF GARLIC, GINGER AND THEIR COMBINATION AS FEED ADDITIVES ON FEED INTAKE, PRODUCTIVE PERFORMANCE, HEMATOLOGY, SERUM AND ECONOMICS OF BROILERS

Abstract: The present investigation was conducted to determine the impact of the dietary addition of garlic and ginger as natural feed additives on feed intake, productive performance, carcass characteristics, hematology and serum biochemistry, economic efficiency, and mortality of broilers. A total of one hundred and ninety-two day old, unsexed (cobb-500) broiler were randomly divided into four experimental groups with three replication per treatment which consisted 16 birds. The birds were...

EVALUATION OF COFFEE (Coffea arabica L.) PRODUCTION AND SELECTED SOIL PHYSICOCHEMICAL PROPERTIES UNDER CORDIA AFRICANA AND ERYTHRINA ABYSSINICA TREES IN ARSI GOLELCHA DISTRICT, ETHIOPIA

Abstract: Coffee plantation with shade trees is important to improve soil health, increase coffee production, sustain and restore agroecology and nature based agroforestry practices. The study was conducted on farmers’ fields in Golelcha District of East Arsi Zone, Ethiopia. The study was intended to evaluate the influence of coffee shade trees on growth performance, yield and quality of coffee (Coffea arabica L.), to characterize selected soil physicochemical ix properties under the canop...

EFFECT OF MULCHING MATERIALS AND FURROW IRRIGATION TECHNIQUES ON MAIZE (Zea mays L.) YIELD AND WATER PRODUCTIVITY AT WERER, MIDDLE AWASH VALLEY, ETHIOPIA

Abstract: The climate change, water shortage and increasing evapotranspiration highlights the need to introduce water saving technologies for agricultural sustainability and crop production with a minimum input of water, mainly in semi-arid region. This experiment was conducted at Werer, Middle Awash Valley during the dry season of 2017/2018 to investigate the effects of mulching materials and furrow irrigation techniques on maize yield and water productivity under semiarid conditions. Split...

INTAKE, DIGESTIBILITY, GROWTH PERFORMANCE AND CARCASS CHARACTERISTICS OF HORRO SHEEP FED ELEPHANT GRASS (Pennisetum purpureum) ENSILED WITH DIFFERENT PROPORTION OF DOLICHOS LABLAB

Abstract: The study was conducted at Bako Agricultural Research Center with the aim to evaluate the effects of Elephant grass ensiled with different proportion of Dolichos lablab on intake, digestibility, body weight gain and carcass parameters. Elephant grass was harvested after eight weeks of regrowth during rainy season and Dolichos lablab harvested at 50% blooming stage and both forages were chopped and weighed separately, mixed, added with 3% molasses and ensiled in pit. A total of twen...

RESPONSES OF SOYBEAN [Glycine max. (L.) Merrill] VARIETIES TO NPS FERTILIZER RATES AT BAKO, WESTERN ETHIOPIA

Abstract: Soybean [Glycine max (L) Merrill] is among the most important legume crops produced in western Ethiopia. However, declining soil fertility as well as poor soil fertility management practices has limited its yields. A field experiment was conducted in Bako Agricultural Research center during 2018 main cropping season to investigate the effect of NPS rates on yield and yield components of soybean varieties and to identify economically feasible rates of blended NPS rate that increase ...

EFFECTS OF TIME AND RATE OF NITROGEN FERTILIZER APPLICATION ON GROWTH, YIELD COMPONENTS AND YIELD OF MAIZE (Zea mays L.) AT NEDJO, WESTERN ETHIOPIA

Abstract: Maize is the major food crop in western Ethiopia and is produced in a number of agro- ecologies. However, its productivity is constrained by low rates and inappropriate timing of N fertilizer applications. Therefore, a field experiment was conducted during the 2018 main cropping season in Nedjo district of western Ethiopia on a farmer’s field. The objectives of the study were to determine the effects of time and rate of nitrogen fertilizer application on growth, yield components ...

EFFECTS OF NPS FERTILIZER RATES AND INTER ROW SPACING ON GROWTH, YIELD COMPONENTS AND YIELD OF COMMON BEAN (Phaseolus vulgaris L.) AT YABELO, SOUTHERN ETHIOPIA

Abstract: Common bean is one of the most important food and export pulse crop in Ethiopia. However, its yield is limited by a number of constraints, which include poor agronomic practices such as low soil fertility management, inappropriate plant spacing, low and erratic rainfall and diseases. Hence, a field experiment was conducted at Yabelo during the 2018-2019 main cropping seasons to assess effect of rates of NPS fertilizer and inter row spacing on growth, yield components and yield of c...


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