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Seasonal Nutrient Enrichment Experiment in Homa Lagoon (İzmir Bay, Aegean Sea) Texto completo
2014
Banu Kutlu
In order to determine the effects of nutrient (P, Si, NH4, NO3) enrichment on the growth of phytoplankton in Homa Lagoon (İzmir Bay, Aegean Sea), experiments of enrichment with discontinuous cultures have been executed seasonally in 2007. In our study, the elements limiting the growth of phytoplankton were NO3, P and Si in spring season, N and P in summer season, and NH4 in autumn and winter seasons. So, it has been determined that the addition of nitrogen (N) and phosphor (P) has led significant change in biomass and growth of phytoplankton. It has also been observed that diatom and dinoflagellate species have grown under various concentrations of, especially, Silicate (Si) and nitrogen (N).
Mostrar más [+] Menos [-]Impacts of the Climate Change on Agricultural Food Security, Traditional Knowledge and Agroecology Texto completo
2014
Murat Türkeş
This paper focuses mainly on both impacts of the climate change on agriculture and food security, and multidisciplinary scientific assessment and recommendations for sustainable agro ecological solutions including traditional knowledge responding to these impacts. The climate change will very likely affect four key dimensions of the food security including availability, accessibility, utilization and sustainability of the food, due to close linkage between food and water security and climate change. In one of the most comprehensive model studies simulating impacts of global climate change on agriculture to date, it was estimated that by 2080, in a business-as-usual scenario, climate change will reduce the potential output of global agriculture by more than 3.2 per cent. Furthermore, developing countries will suffer the most with a potential 9.1 per cent decline in agricultural output, for example with a considerable decrease of 16.6 per cent in Africa. Some comprehensive studies pointed out also that all regions may experience significant decreases in crop yields as well as significant increases, depending on emission scenarios and the assumptions on effectiveness of carbon dioxide (CO2) fertilization. One of the tools that would ensure the food security by making use of local sources and traditional knowledge is agroecology. Agroecology would contribute to mitigation of the anthropogenic climate change and cooling down the Earth’s increasing surface and lower atmospheric air temperatures, because it is mainly labour-intensive and requires little uses of fossil fuels, energy and artificial fertilisers. It is also necessary to understand the ecological mechanisms underlying sustainability of traditional farming systems, and to translate them into ecological principles that make locally available and appropriate approaches and techniques applicable to a large number of farmers.
Mostrar más [+] Menos [-]The Effect of Choice Feeding Based on Threonine on Performance and Carcass Parameters of Male Broiler Chicks Texto completo
2014
Tugay Ayasan | Ferda Okan
The aim of this study was to evaluate the effect of choice feeding based on threonine on performance characteristics and carcass parameters of male broiler chicks. Day old, thirty Ross 308 male chicks were divided into two dietary treatment groups. In the experiment, choice feding did not affect on body weight gain, feed conversion ratio. Feed intake and carcass parameters significantly affected by experimental treatments.
Mostrar más [+] Menos [-]Effect of Nutrition on Biomechanical Properties of Bone in Laying Hens and Broilers Texto completo
2014
Osman Olgun
Leg problems have caused significant economic losses in poultry sector. Bone quality and strong is related to nutrition. In this review, effects of nutrition on bone strength are given to laying hens and broilers. For this, effects of some minerals and feed additives on bone quality were reviewed. Calcium, phosphorus, boron and some feed additives in feeding of hens and broilers are important to strong bone. In addition, the form of calcium resources must be considered in laying hens.
Mostrar más [+] Menos [-]Comparison of Antioxidant Properties of Wild Blueberries (Vaccinium arctostaphylos L. and Vaccinium myrtillus L.) with Cultivated Blueberry Varieties (Vaccinium corymbosum L.) in Artvin Region of Turkey Texto completo
2014
Özlem Saral | Zafer Ölmez | Hüseyin Şahin
Vaccinium arctostaphylos L. and Vaccinium myrtillus L. which are found naturally in most part of Blacksea Region, and Artvin are generally called bear grape, Trabzon tea, and likapa. In addition, different varieties of blueberry (Vaccinium corymbosum L.) have been cultivated in Artvin region for 5 or 6 years. Blueberries contain appreciable levels of phenolic compounds, including anthocyanins and flavonols that have high biological activity. V. arctostaphylos and V. myrtillus show that natural distrubition with received V. corymbosum of different cultured species in Artvin region will be determined antioxidant activity in this study. In this study showed that wild species had a higher antioxidant effect than cultivated species. V. myrtillus had high total polyphenols (11.539-20.742 mg GAE/g dry sample), flavonoids (1.182-2.676 mg QE/g dry sample) and anthocyanins (3.305-11.473 mg Cyn/g dry sample) than V. corymbosum species. In addition, wild species had high CUPRAC, FRAP and DPPH values. The antioxidant activities found with CUPRAC, expressed as trolox equivalent antioxidant capacity ranged from 0.143 to 0.297 mmol TEAC/g dry sample. Those determined with DPPH expressed as IC50 ranged from 0.229 to 1.178 mg/ml. Those determined with FRAP expressed as FeSO4.7H2O equivalent were in 130.719–346.115 µmol Fe/g dry sample range.
Mostrar más [+] Menos [-]Investigations of Pet Animal Breeding Trends in Sivas Texto completo
2014
Yusuf Ziya Oğrak | Abdulkadir Türkmen | Cumhur Yılmaz
The aim of the study was to determine the present situation and future trends of pet which a member of our home in central Anatolian city of Sivas. For this purpose, 100 people (73 male, 27 female) used with face to face interviews in the questionnaire aged 18-72 (mean 32.25), monthly income changed 400-5000 Turkish Liras (average 1841) and, 16 questions except for personal information were asked to participants. Participants, 51% graduated the university, 46% married, 82% lived in apartments, and 64% of the occupied own houses or belonging to their family have been identified. According to the findings, any breeders of pet in the house in Sivas rate were 31%. and, the people's income level , gender , age , marital status , educational level , having a child and the seat of the house with a garden and the lack of this on the ratio statistically not significant was observed. Highest percentage pet in species of breeding animals was the bird and, 48.4% of those pet owners did not go to the veterinarian at all and, 24.6% of non-animal’s previously had a bad incident with animals that have been identified. As a result, in terms of veterinary importance will increase day by day with pet animal breeding priorities for the further dissemination of the determination of the current situation and problems are seen to be important and, larger-scale research to be done will be helpful.
Mostrar más [+] Menos [-]Isolation of Rhizobium Spp. Bacteria which as Used Microbial Fertilizer from Wild Leguminosarum Plants Texto completo
2014
Hatice Öğütcü | Ömer Faruk Algur
In our study used wild leguminous plants (Medicago sativa, M. lupulina and M. varia ) Erzurum belongs to the high altitude (2000 - 2500m ) regions ( Palandöken mountain, Alibaba mountain, Turnagöl mountain, Hasanbaba mountain, Eğerli mountain, Yıldırım mountain, Çubuklu mountain, Deveboynu locality, Kayakyolu locality, Telsizler and Dumlu hill ) were collected during the months of June and July. Nodules were obtained from this plant were sterilized, YMA (Yeast Mannitol Agar) plates were streaked and petri dishes 28+1ºC were incubated for 3-5 days. Colonies appear after incubation typically constitute (white, clear or slightly opaque, mucosity, round, raised) 39 isolates were selected and transferred to tubes and refrigerated YMA were stored at +4ºC. In the next stage, cytological and biochemical analyzes of these isolates were studied to determine. For this purpose isolates; YMA containing bromothymol blue and congo red reproduction, gram stain reaction, movement and subjected to catalase and oxidase tests were evaluated. The cytological and biochemical analysis of results showed that 28 of 39 strains belonged to Rhizobium spp.
Mostrar más [+] Menos [-]Multivariate Analysis for Umbel per plant in Land races of Coriander (Coriandrum sativum L.) Texto completo
2014
Hari Shankar Yadava
Twenty five land races from Madhya Pradesh and ten germplasm of coriander were evaluated in four environments to assess umbel per plant using multivariate analysis. Mean sum of squares due to genotypes, environments and GEI were highly significant for umbels per plant. Variation in GEI was mainly due to heterogeneity. ). PCA 1 and PCA 2 captures the 99.42% of interaction sum of squares hence, these two principal component axes were the best predictive. The potential environment the potential environments E3 (high fertility, 2009-10) bearing lowest interaction effect while, least potential environments E2 (low fertility, 2008-09) exhibited high PCA scores. The biplot of genotype, environment and IPCA 1 showed three groups. One group exhibited the similar main effects (mean umbels per plant) to the grand mean. The second group showed high interaction effect varied in direction while third group bear the low interaction effect. AMMI Stability Values (ASV), ranging from from 7.444 to 31.099 was lowest in RVC 8 followed by RVC 4, RVC 11, RVC 21, RVC 9 and RVC 3 whereas, it was noted maximum in RVC 19 followed by Moroccan, CS 193, Simpo S 33 and G 5363. The genotypes exhibiting low IPCA scores and ASV namely, RVC 8, RVC 4, RVC 11, RVC 21, RVC 19 and RVC 25 showed wider adaptability for umbels per plant while, RVC 19, Moroccan, CS 193, Simpo S 33 and G 5363 exhibiting specific adaptability towards environmental conditions. These genotypes can be utilized in breeding programmes to transfer the adaptability genes for umbel per plant into high yielding genetic back ground in coriander.
Mostrar más [+] Menos [-]Comparison of Saanen x Hair Goat Crossbred (F1, G1) and Hair Goat Raised at The Farm Conditions in Terms of Milk Yield Characteristics Texto completo
2014
Hilal Tozlu Çelik | Mustafa Olfaz
This study was conducted to determine milk yield characteristics and its effect on genotypes, years and ages Hair goat x Saanen crossbred and Hair goat breed between 2011-2012 years in private enterprise which is located in Amasya province Sarılar village. In this study, the effect of genotypes was found significant on average daily milk yield, lactation length and lactation milk yield in 2011 and 2012 years. In 2011, the effect of goat ages were determined on average daily milk yield (ADMY) and lactation milk yield (LMY) for all goat genotypes. In 2012, the effect of goat ages was determined on average daily milk yield and lactation length (LL) for all goat genotypes. The effect of year F1 and Hair goat were found significant on ADMY, LMY, and LL. The effect of year was found significant on only LL for G1 genotype. As a result it can be say that Saanen goat x Hair goat crossbred F1 and G1 genotype milk yield was higher than Hair goat reared in farmer conditions.
Mostrar más [+] Menos [-]Effect of Heat Treatment and Salt Concentration on Free Amino Acids Composition of Sudanese Braided (Muddaffara) Cheese during Storage Texto completo
2014
Mohamed O. E. Altahir | Elgasim A. Elgasim | Isam A. Mohamed Ahmed
The aim of this study was to assess the effect of heat treatment and salt concentrations (0, 5, and 10%) on the free amino acids (FAA) composition of Sudanese braided cheese (BC) ripened for up to 3 months at 5±2°C. Heat and salt concentration significantly affected the FAA of braided cheese. The free amino acids concentrations of BC ripened in 0%, 5%, and 10% salted whey (SW) were significantly fluctuated. Under ripening conditions tested (salt level + time), braided cheese made from pasteurized milk (BCPM) had consistently lower values of FAA than braided cheese made from raw milk (BCRM). In fresh cheese, the major FAA in BCRM were Glu (36.12 nmol/ml), Leu (26.77nmol/ml) and Lys (14.51 nmol/ml) while the major ones in BCPM were Lys (2.94 nmol/ml) and Ala (2.45 nmol/ml). BCPM stored in 10% SW had shorter quality life compared to that stored in 5% salted whey.
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