jbas
Abstract : Assessment of Floristic, Microbial Composition and Growth of Sphenostylis stenocarpa (Hochst Ex A. Rich) in Soil from Two Dumpsites in Benin City, Nigeria
|
|
|
Abstract: Survey of dumpsite plant composition, assessment of rhizosphere microorganisms and growth performance of Sphenostylis stenocarpa grown on two dumpsite (CAPITOL and NITEL ROAD) soils in Benin City was investigated. Control treatment was top soil. A total of 9 and 30 flora were observed at the CAPITOL and NITEL ROAD dumpsites respectively. Analysis of the rhizosphere soils of the plants grown in dumpsite soils at different amendments showed a total heterotrophic bacterial count ranging from 1.57 x 104 to 4.18 x 104cfu/g and a total heterotrophic fungal count in the various rhizosphere soils ranged from 5.05 x 103 to 1.68 x 104cfu/g. The bacterial isolates from the rhizosphere soil samples were Arthrobacter sp., Bacillus sp, Pseudomonas sp., Escherichia coli, Enterobacter sp., Klebsiella sp., Micrococcus sp. and Staphylococcus sp. The fungal isolates were Aspergillus sp, Mucor sp, Fusarium sp, Penicillium sp, Trichoderma sp. and Saccharomyces sp. Bacillus sp., Pseudomonas sp., Penicillium sp. and Aspergillus sp. Aspergillus sp. 100 % (present in all dumpsite soils analyzed) had the highest frequency of occurrence amongst the isolates.Percentage seedling emergence was significantly reduced from 86.67± 13.33 % - 100.00 ± 0.00 % in control (top) soil to 60.00 ± 0.00 % to 93.33 ± 6.67 % in CAPITOL dumpsite soil. Shoot height at 6 weeks after planting (WAP) was significantly (p < 0.05) increased from 78.33± 18.53 cm in the control soil through 131.50 ± 18.79 cm in the CAPITOL dumpsite soil to 186.33 ± 13.68 cm in NITEL road dumpsite soil, all without amendment. Number of leaves at 6 WAP increased on addition of FYM in both soil types. Chlorophyll content was not significantly different (p > 0.05) from control plants. Leaf area in both dumpsite soils was found to be significantly different (p < 0.05) from the control soil but leaf area increased on addition and increase in amendment in both soil types. In all parameters observed, it was noted that the control treatment did better than the plants grown in the dumpsite soils with increased amendment.. Keywords: amendment, dumpsite soil, growth, Rhizosphere microorganisms, S. stenocarpa.Download Full Article |
Abstract : Seasonal and Spatial Growth Patterns of Shrimps Collected from Some Selected Creeks of Sindh, Pakistan
|
|
|
Abstract: Shrimps are very important part of the export economy of Pakistan. They share about 60 % the total exports of the sea food. For the studies of shrimp health, the length-weight studies are critical for the evaluation of the shrimp stocks. In this paper an attempt has been made to explore the Length-weight relationships of the shrimps at the creeks zone of Sindh coast (the study area). Furthermore, the impacts of seasonal change on the growth of shrimps (length and weight treated as parameter) have been evaluated. The main objective of this study is to analyze the seasonal and spatial pattern of growth and condition of the selected shrimp species. For this purpose, three most abundant shrimp species Penaeus indicus, Metapenaeus affinis and Exopalaemon styliferus have been selected out of 30 found at the coastal creeks areas of Sindh, Pakistan from April 2013 to January 2014. Pre and Post-Monsoon seasonal changes were analyzed through Geographic Information Science (GIS) and universally accepted equation for LWRs logW = alogLb were applied on three species selected. It has been found that post-monsoon is the ideal period for shrimp catch for three species. LWRs (growth pattern) found stable in Penaeus indicus and Metapenaeus affinis while predicting an alarming deteriorated situation for Exopalaemon styliferus at creeks zone. Keywords: GIS, Length-Weight Relationships, Stock Assessment, Prawn Trawl, Creek environment, coefficient of correlation and coefficient of determination.Download Full Article |
Abstract : A Spatio-Temporal Assessment of Green Turtle Habitat at Hawkes Bay, Karachi through Geo-Informatics Techniques
|
|
|
Abstract: Hawkes Bay site is one of the major favorable nesting sites for green turtles (Chelonia mydas) in Pakistan. Many environmental factors influence the nesting patterns of green turtles at this beach. The main objective of this study is to evaluate the importance of monitoring habitat of wildlife with the help of GIS and remote sensing. Seasonal influence on nesting pit density is quite noticeable on high resolution imageries. Pearson’s correlation coefficient analysis was used to highlight the strong relation of temperature and nesting pits. As a result of this research monitoring of spatio-temporal variation and impacts of temperature rise on nesting grounds observed. Keywords: Green turtle, Temperature, GIS Techniques, Satellite Imageries, Geographical Factors, Temporal Change and Risk Factors.Download Full Article |
Abstract : Effect of Age on Production Performance, Egg Geometry and Quality Traits of Lakha Variety of Aseel Chicken in Pakistan
|
|
|
Abstract: Aseel chicken is indigenous to Asian subcontinent famous for its vigor, body characteristics and fighting behavior. Moreover, these birds are also able to withstand harsh climatic conditions of tropical and sub-tropical areas but its rearing is getting less importance due to its poor egg production. The present study was conducted to evaluate the effect of age on production performance, egg geometry and egg quality traits of Lakha variety of Aseel maintained under standard managemental conditions at Indigenous Chicken Genetic Resource Center (ICGRC), University of Veterinary and Animal Sciences, Lahore, Pakistan. For this purpose, a total of 42 birds, 14 birds in each of the following age group (30, 70 and 110 week), were kept up to four months. Collected data were analyzed under Completely Randomized Design (CRD) with comparison of means using Fisher’s LSD test. Statistical analyses revealed significantly higher egg production and egg mass in first age group (30 week), higher egg weight in third age group (110 week) and better FCR/ dozen eggs and FCR/ kg egg mass in second (70 week) and third age (110 week) groups with non-significant differences in feed intake. Regarding egg geometry, all parameters were significantly higher in third age group than that of second and first age groups. In egg quality, Haugh unit score was significantly higher in third age group while yolk index and shell thickness showed non-significant differences among all age groups. So it can be concluded that with increasing age, egg production and egg mass decreases with increase in egg geometry traits. Keywords: Aseel, Age, Production Performance, Egg Geometry, Egg Quality.Download Full Article |
Abstract : Effect of Cellulytic Enzyme Supplementation (Extracted from Chatomium thermophyle) on Production Performance and Economic Appraisal in Aged Layers Using High Fiber Diets
|
|
|
Abstract: One hundred and twenty white leghorn layers of 80 weeks having uniform body weight were randomly divided into 15 experimental units of 8 birds each and reared under standard managemental conditions. Five treatments (each having three replicates) i.e. control T1 (commercial layer mash), T2 (layer mash having 6% fiber + 1X enzyme), T3 (layer mash having 8% fiber + 1X enzyme), T4 (layer mash having 6% fiber + 2X enzyme) and T5 (layer mash having 8% fiber + 2X enzyme) were randomly allotted to experimental units. Egg production, egg weight and feed consumption were recorded for eight weeks. Egg mass, feed conversion ratio/dozen egg and feed conversion ration/kg egg mass was also calculated. Data was analyzed statistically using analysis of variance technique under completely randomized design. Treatment means were compared using least significant test. It was found that egg production increased significantly by the T2 but was non-significant with the control group. The different treatments showed significant decrease in feed consumption as compared with control group. Significant improvement in egg mass was found in control group and was non-significant with T2 and T4. There was significant effect of enzyme supplementation on feed conversion ration/dozen egg and feed conversion ratio/kg egg mass. T2 and T4 showed best feed conversion ratios per dozen and per kg egg mass. Maximum profit/bird was observed in T2 followed by T4, T5, T3 and T1, respectively Keywords: Fiber degrading enzyme, Layers, production performance, Economical appraisal.Download Full Article |