African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6559

Table of Content: July 2009; 4(7)

July 2009

Comparison of biogas productivity of cassava peels mixed in selected ratios with major livestock waste types

  Biogas productivity of cassava peels, mixed with poultry, piggery and cattle waste types in ratios 1:1, 2:1, 3:1 and 4:1 by mass, was investigated using 12 Nos. 220l batch type anaerobic digesters in a 3 x 4 factorial experiment using a retention period of 30 days and within the mesophilic temperature range. Biogas yield was significantly (P ≤ 0.05) influenced by the different mixing ratios of livestock...

Author(s):   B. A. Adelekan and A. I. Bamgboye        

July 2009

Effects of low input tillage and amaranth intercropping system on growth and yield of maize (Zea mays)

  Field experiments were conducted to find out the effects of tillage practices and intercropping on the growth and yield of maize at the teaching and research farm, university of Ado Ekiti, southwest Nigeria during the 2006 early and late growing seasons. The experiment was laid out in a randomized complete block design (RCBD) with 3 replication with tillage practices (CT, MT, NT) assigned to main plots and...

Author(s):   Awe, G. O. and Abegunrin, T. P.        

July 2009

Histopathological study and pulmonary classification of bovine lesions

  The partial or total seizures of carcasses or organs by veterinary services during inspection constitute a real constraint for butchers from the economical point of view. Results of a study carried within two years in Tiaret slaughterhouse (west of Algeria) and within three years in Batna slaughterhouse (east of Algeria) have shown a high frequency of pathological pulmonary lesions in 870 bovine lungs that...

Author(s):   M. Belkhiri, M. Tlidjane, Y. Benhathat and T. Meziane        

July 2009

The effect of autoclave processing and gamma irradiation on apparent ileal digestibility in broiler breeders of amino acids from canola meal

  The objective of this study was to investigate the effect of different doses of gamma irradiation and autoclaving on the apparent ileal digestibility in male broiler breeders of amino acids from canola meal. Samples were irradiated in a gamma cell at total doses of 15, 30 and 45 kGy. One package (control) was left at a room temperature: similar to the other treatments, evaporation decreased the moisture...

Author(s):   Mohammad Chamani, Mohammad Molaei, Farhad Foroudy, Hossein Janmohammadi and Gholamreza Raisali      

July 2009

Energy usage and benefit-cost analysis of cotton production in Turkey

  The aim of this research is to determine the energy input and output involved in cotton production in the Hatay province of Turkey. The average energy consumption of the farms investigated in this study is 19 558 MJha-1. Of the total energy, 2.87% is direct and 71.13% is indirect. Renewable energy accounts for 12.30% and energy usage efficiency is found to be 2.36. The total energy input into the production...

Author(s):   Erdal Dagistan, Handan Akcaoz, Bekir Demirtas and Yalcin Yilmaz        

July 2009

Genetic diversity of small yellow croaker Larimichthys polyactis revealed by AFLP markers

  The population genetic structure of small yellow croaker Larimichthys polyactis in the Yellow Sea and East China Sea was analyzed using amplified fragment length polymorphism (AFLP). A total of 304 loci were detected by four primer combinations among 53 individuals collected from four locations representing three stocks of small yellow croaker, 231 of which were polymorphic (75.99%)....

Author(s):   Zhi Qiang Han, Long Shan Lin, Bo Nian Shui and Tian Xiang Gao,        

July 2009

Influence of soil properties on landslide occurrences in Bududa district, Eastern Uganda

  The aim of this study was to carry out a detailed soil survey to determine soil types and their influence on landslide occurrence in Bududa District in eastern Uganda. Four transects were chosen following zones with and without landsides. Soil profile description and classification was done using FAO methods. Infiltration rates were measured as described by Landon in 1991. Results show that the soil types are...

Author(s):   M. G. Kitutu, A. Muwanga , J. Poesen and J. A. Deckers        

July 2009

Short-term studies on use of organic amendments for amelioration of a sandy soil

  The increase in world population has posed more pressure in existing arable lands. The nutrients poor sandy soils could be productive if their content of organic matter can be increased. Agricultural and animal wastes instead of being dumped, could offer a cheap alternative source of organic matter to increase soil fertility. Three glasshouse short-term experiments were carried out to evaluate the effects of...

Author(s):   A. R. Mubarak, Omaima E. Ragab , Amal A. Ali and Nemat E. Hamed        

July 2009

Effects of some external treated plant growth regulators on stomata aperture of cucumber (Cucumis sativus L.)

In this study, cucumber (Cucumis sativus L.) seedlings grown singly in standard pots contain compost were exposed to two different concentrations (10-4 and 10-6M) of BA (6-benzyladenine), NAA (α-naphthaleneacetic acid) and GA3 (Gibberellic acid). Plant growth regulators were used as spraying (2 ml) on the lower surfaces of leaves for seven days. Beith alpha and Çengelköy, which...

Author(s):   I. I. ÖzyiÄŸit and S. Can        

July 2009

Yields and qualities of some red clover (Trifolium pratense L.) genotypes in crop improvement systems as livestock feed

  The objective of this study was to compare twenty-five genotypes of red clover (Trifolium pratense L.) in terms of yield (in 2000 - 2004) and quality performance (in 2000 - 2001) for animal feeding. The genotypes were evaluated for dry matter yield (DMY), crude protein (CP), acid detergent fiber (ADF), neutral detergent fiber (NDF), digestible dry matter (DDM), dry matter intake (DMI), relative feed...

Author(s):   Ayten Tavlas, Halil Yolcu, Mustafa Tan

July 2009

Effects of feed restriction on production and reproductive performance of Rhode Island red pullets

  The study examined the effect of skip a-day feed restriction on Rhode Island Red chicken and evaluated the effect in relation to age, body weight, egg quality, weight of reproductive tract and liver at the onset of egg laying. Two hundred 40 day-old chicks with mean body weight of 48.92 ± 1.53 g were randomly distributed to 12 pens each with 20 chicks, representing 4 feeding regimen of T1...

Author(s):   Etalem Tesfaye, Berhan Tamir, Aynalem Haile and Tadelle Dessie        

July 2009

Determination of fruit and oil characteristics of olive (Olea europaea L. cv. ‘Gemlik’) in different irrigation and fertilization regimes

  We evaluated plant growth, fruit and oil characteristics of olive (Olea europaea L. cv. ‘Gemlik’) grown on different fertilization and irrigation treatments. Irrigation regimes included rainfed-control (T0), two treatments with 50% (T50) of the full irrigation treatment (T100) which received 100% class-A pan evaporation. Four fertilization treatments included unfertilized-control (F0),...

Author(s):   Celil Toplu, Derya Önder, Sermet Önder and Ercan Yıldız        

July 2009

Genetic characteristics of hybrid populations derived by crossing Chinese and Indian pearl oysters, Pinctada fucata, based on AFLP markers

  In selective breeding, hybrid populations of pearl oysters Pinctada fucata were made by crossing Indian pearl oysters with Chinese ones. Genetic characteristics of 2 hybrid populations, Indian(♀) × Sanya(♂) and Sanya(♀) × Indian(♂) and 2 pure populations, Indian × Indian and Sanya × Sanya, were investigated using AFLP markers. A total of 230 loci were generated by 3...

Author(s):   Da Hui Yu, Gui-ju Huang, Yi-hui Guo, Xiao-yu Wang and Ai-min Wang        

July 2009

The effects of land-use changes on soil properties: The conversion of alder coppice to tea plantations in the Humid Northern Blacksea Region

  Over the last century, the conversion of natural ecosystems to agricultural production is one of the primary factors in environmental degradation. As in most parts of the world, forest soils in the north-east of Turkey are being seriously degraded and destroyed due to extensive agricultural activities. This study investigated the effects of changes in land-use on some soil properties in Rize,...

Author(s):   Turan Yüksek, Ceyhun Göl, Filiz Yüksek and Esin ErdoÄŸan Yüksel