خيارات البحث
النتائج 71 - 80 من 188
Morphology of the Testis and Epididymis of Large White Boars
2016
Samuel Gbadebo Olukole | Bankole Olusiji Oke
The testis and epididymis of twenty five adult Large White boars were used to investigate the biometric and histomorphometric parameters of the testis and epididymis of the boars. The aim of the study was to provide information which could be useful in the comparative regional anatomy of the male reproductive organs of domestic animals and thus an improved assessment of breeding soundness and fertility potential in boars. The average weight of the animals was 71.3 ± 10.7 kg. The average weights of the right and left testes were 170 ± 0.7.60 g and 179±6.48g, respectively with no significant dif¬ference. The average weights of the right and left epididymis were 40.9 ± 6.81 g and 43.7 ± 8.55 g, respectively, with no significant difference. The relative testicular and epididymal weights were 0.49% and 0.12%, respectively. This study shows that the testis is about four times the size of the epididymis. The ductal diameter of the head, body and tail of the epididymis were 418 ± 22.6 µm, 432 ± 20.3 µm and 939 ± 50.6 µm, respectively. The mean relative volume of the germinal epithelium, interstitium and lumen of the seminiferous tubules of the boars rats were 68.4 ± 3.46%, 5.5 ± 0.66% and 78.0 ± 4.81%, respectively. It can be concluded that the morphology of the testis and epididymis of the Large White boar are similar to those of most mammals. This work provides information the testis and epididymis of the Large White boar which could be useful in the comparative regional anatomy of the male reproductive organs of domestic animals and thus an improved assessment of breeding soundness and fertility potential in boars.
اظهر المزيد [+] اقل [-]Evaluation of Medium and Large-Scale Mushroom Companies in Turkey
2016
Erkan Eren | Gölgen Bahar Öztekin | Yüksel Tüzel
The commercial production of cultivated-mushroom, which has a forty years of past in Turkey, was started after 1980s. Until the recent decade, most of the total amount of production in Turkey was performed by family members while the cultivation of the product has gained an upward trend since the beginning of 2000s, though the amount and development rate were not enough. During that time, a number of large (>2000 m2) and medium (500-2000 m2) scale mushroom production facilities were established and Turkey has gained an important place in mushroom production in the world. In this study, we aimed to reveal the common production methods of ten medium and large scale mushroom companies whose daily production capacities are above 1 ton in six regions. In this respect, all companies have been visited and communicated directly with company representatives and a survey comprising 65 questions about company, production facility, compost and casing soil, production systems, diseases and pests and packaging was made. The findings have suggested us that such companies have mostly a history of 15 years of time and have a land size of 10-50 thousand m2, while their mushroom production areas vary between in size and that they make use of technology in production and automation in their plants and they have quality management systems (ITU, ISO 9001, ISO 22000 and Global Gap ) and they employ generally qualified and experienced technicians or agriculture engineers and also that 40% of them receive consultancy and also that they use their own productions or standard ready mycelium planted compost and that they use domestic peat as casing material and that they package the mushrooms with their brands and sell to markets mostly and lastly that they conduct pre-sale quality sorting and grading. It was also seen that there is lack of food engineers employed and most of the companies do not receive consultancy, and that the waste compost is not evaluated correctly and that the covering material is not in the required standards and that there are even companies not doing any water analysis and that coal for heating and chemicals for disinfection are used and that diseases and pests are inevitable and last that they lack in processing different products.
اظهر المزيد [+] اقل [-]Assessment of Çinarli Stream (Hafik -Sivas)'S Water Quality via Physico-Chemical Methods
2016
Ekrem Mutlu | Banu Kutlu | Tuğba Demir
Çınarlı Stream within the borders of Hafik district of Sivas city is famous for its natural beauties and rich water resource. By passing through a steep valley, Çınarlı stream reaches at forages exhibiting gypsum characteristic of Çınarlı Village. It supplies the irrigation water needs of Koşutdere and near villages where it merges with Koç Stream, and then mixes into Kızılırmak within the borders of Hafik district. Çınarlı Stream satisfies table and usage water requirements of Çınarlı, Bahçecik and Koşutdere villages, besides supplying the irrigation water for fertile agricultural lands near them. In this study, by observing the water quality of Çınarlı Stream via physico-chemical methods by taking samples from 6 stations on stream and analyzing these samples between October 2011 and September 2013, it has been aimed to determine and record the monthly and seasonal changes in water quality, to determine the quality criteria in accordance with Water Pollution and Control Regulation (WPCR), and to create a data base for further studies in Çınarlı Stream, where no other study has been carried out.
اظهر المزيد [+] اقل [-]Physicochemical Analysis of Water Quality of Brook Kuruçay
2016
Ekrem Mutlu | Arzu Aydın Uncumusaoğlu
In this study, through the analyses of water samples taken from 9 stations on the brook between July 2012 and June 2013, we aimed to determine the monthly and seasonal changes in water quality parameters of Brook Kuruçay, to determine the water quality properties, to reveal the pollution problems, to determine the suitability level in terms of aquatic life and to classify the quality of water in accordance with Surface Water Quality Management Regulation’s Inland Surface Water Classes criteria. The study area is located southeast of the Hafik District of Sivas city and the altitude is 2608 m. The water samples were collected from 9 stations established on the brook, and some physicochemical parameters and heavy metal concentrations were analyzed in water samples. The cleaning and maintenance of all of the equipment, land-type measurement tools, and glass sampling containers to be used in sampling were made 1 day before sampling. Sampling tubes were immersed into 15 cm below the water surface for taking water samples. Heavy metal concentrations were determined in the Sivas Provincial Control Laboratory in the same day with sampling (within 5 hours). The total alkalinity, total hardness, ammonium nitrogen, nitrite, nitrate, ammonium azote, phosphate, sulfite, sulfate, chloride, sodium, potassium, suspended solid matter (SSM), chemical oxygen demand (COD), biological oxygen demand (BOD), calcium, magnesium, ferrous, lead, copper, zinc, nickel, mercury and cadmium analyses of water samples were performed.As a result of the analyses, it was determined that, since Brook Kuruçay falls into the water resource class, which is the most sensitive to pollution, the water quality of the brook should be monitored regularly.
اظهر المزيد [+] اقل [-]Agricultural Geography Analysis of Carob Tree (Ceratonia siliqua L.) from Turkey
2016
Güven Şahin | Nuran Taşlıgil
Carob tree (Ceratonia siliqua L.) is one of the oldest trees in the world and has been cultivated from civilization of Ancient Persia, especially on the Mediterranean coasts, till nowadays. The fruit of the carob tree (carob bean) are attracting attention in recent years due among others to tits rich nutritional value and use as a substitute and/or alternative for cocoa. Although it has higher sugar content than sugar beet and sugar cane, it is a food that also lowers cholesterol. In addition to its fruit, the plant has interesting morphological qualities. Deep root system of carob tree allows high productivity even in draught conditions; it is an ideal plant in the fight against erosion and one of the most preferred plants while establishing fire-resistant forests. Additionally, because 2016 was declared the International Year of Pulses, it is necessary to draw attention to the carob tree since it is a typical pulse plant. The status of Turkey, as the 5th carob producer in the world, was analysed in this context, in terms of Agricultural Geography. The existing and necessary practices in carob production are discussed based on the data from the studies conducted in Antalya and Mersin in 2015 and previous ones.
اظهر المزيد [+] اقل [-]Vernonia amygdalina: An Underutilized Vegetable with Nutraceutical Potentials – A Review
2016
Oseni Kadiri | Babatunde Olawoye
In recent years, studies have been focus not only on the nutritional properties of Vernonia amygdalina, but its pharmacological, medicinal and antioxidant values. The antioxidant, antidiabetic, hepatoprotective, haematological, antiplasmodial, antimicrobial, anticancer, anti-inflammatory, pharmacological and medicinal value of Vernonia amygdalina is no longer in doubt and is comprehensively documented in this study. Some studies attribute its medicinal properties to its phytochemical compounds while other studies link its health benefits to its bioactive components. It is expected that this review will be useful to researchers, agriculturists and herbal medical practitioners and improve interest in the study and utilization of this plant in other part of the globe where it is not presently cultivated or utilize. Relevant information was obtained from online resources such as Google Search, Google Scholar, PubMed and Medline. Only literature highlighting the nutritional, medicinal, pharmacological, and antioxidant activities of the plant were selected for this review.
اظهر المزيد [+] اقل [-]PGPR Potentially Improve Growth of Tomato Plants in Salt-Stressed Environment
2016
Mariam Zameer | Hina Zahid | Bushra Tabassum | Qurban Ali | Idress Ahmad Nasir | Muhammad Saleem | Shahid Javed Butt
Plant growth promoting rhizobacteria are colonized bacterial species that has the capability to improve plant growth by certain direct and indirect means. Environmental factors including both biotic and abiotic stresses are among the major constraints to crop production. In the current study, the effectiveness of microbial inoculation (Bacillus megaterium) for enhancing growth of tomato plants under salt stress conditions has been investigated. Significant improvement in shoot length, root length, leaf surface area, number of leaves, total weight of the shoot and root was observed in tomato plants inoculated with zm7 strain post 15 and 30 days of its application. Zm3, Zm4 and Zm6 strains improved the morphological parameters as compared to the control. Chlorophyll content a, chlorophyll content b, anthocyanin and carotenoid content was increased in tomato plants subjected to Zm7, Zm6 and Zm4 strains. Stress responsive genes; metallothionein and glutothion gene were found highly expressed in Zm7 treated tomato plants as compared to control, untreated plants. Significant correlation of anthocyanin was reported for carotenoids, chlorophyll-b, shoot weight and total weight of seedling while carotenoids were significantly correlated with leaf surface area, root length, chlorophyll-b and anthocyanin. Overall, Zm7 strain proved best for improvement in salt stressed plant’s morphological parameters and biochemical parameters as compared to control, untreated plants.
اظهر المزيد [+] اقل [-]Effects of Whole Wheat Scattered the Litter on Performance, Carcass Characteristics, Excreta pH and Viscosity in Broilers
2016
Figen Kırkpınar | Zümrüt Açıkgöz | Özer Hakan Bayraktar | Özge Altan
The aim of this study was investigate the effects of whole wheat scattered the litter on performance, carcass characteristics and viscosity and pH of excreta in male broilers. A total 336 male chicks (Ross-308) were randomly distributed into two dietary treatments of four replicates each. Same starter (0 to 21 d) and finisher diets (22 to 45 d) were used in both groups. All birds were given ad libitum access to feed and water throughout experimental period. From 8 to 21 days, whole wheat (10 g/bird/day) was randomly thrown on the litter in one of the experimental groups twice a day (at 0800 and 1200 h). Scattering whole wheat in the litter decreased body weight of male broilers at 21 d of age while increased at 45 d of age. Feed intake was not affected by whole wheat scatter treatment. From 22 to 45 and 0 to 45 d of age, feed conversion ratio significantly improved in group scattered whole wheat in the litter than control group. No significant differences were occurred among groups for mortality, carcass characteristics and excreta viscosity. However, pH value of excreta in group scattered whole wheat the litter showed significant reduction as compared control group. According to these results, scattering whole wheat the litter at an early stage affected the performance of male broilers positively.
اظهر المزيد [+] اقل [-]Current Status, Problems and Solution Proposals of Small Ruminant Husbandry in Ordu
2016
Hilal Tozlu Çelik
The Black Sea Region has a convenient structure for small ruminants in livestock activities thanks to its mountainous, rugged terrain, climate and socio-economic structure. Ordu is the third largest city of the Black Sea Region. The purpose of this research is to determine the current status of small ruminant in Ordu province and offer solutions by defining the problems.
اظهر المزيد [+] اقل [-]Importance of Clover (Trifolium sp.) Genus for Black Sea Region
2016
Özlem Önal Aşcı
There is a high level of forage deficit in Turkey. It is necessary that cultivation and productivity of forage plant should be increase to close forage deficit in a short time, further, pastures should also be improved. Clover genus involves both annual and perennial species, it has some species are grown different soil conditions. Clover species are grown in cool temperate and humid regions have thin stem and abundant leaf, thus, their hay is very nutritive feed for animals. They can use both increasing forage cultivation and pasture improvement in Black Sea Region.
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