خيارات البحث
النتائج 201 - 210 من 450
Virtual Analysis on Proximate Body Composition of Labeo rohita and Cirrhinus mrigala
2020
Muhammad Atif Sikandar | Zaigham Hassan | Abdul Basit | Raees Khan | Fethi Ahmet Ozdemir
Labeo rohita and Cirrhinus mrigala are the two Indian major carps and chief components of polyculture system in the local population. Proximate body composition is the analysis of water, fat, protein and ash contents of fish. Values are vary considerably within and between species, size, sexual condition, feeding season and physical activity. The percentage of water is a good indicator of its relative contents of energy, proteins and lipids. Determination of some proximate profiles such as protein content, lipid, ash and other nutrients is often necessary to ensure that they are within the range of dietary requirement and commercial specifications. Based on this background the present study was aimed to evaluate the nutritional value of some major craps (Labeo rohita and Cirrhinus mrigala) fishes of Peshawar Carp Hatchery and training centre Sherabad. The proximate composition of Labeo rohita and Cirrhinus mrigala samples were determined and data was evaluated statistically by performing t-test through Sigma Plot and graphs were made by using Graph Pad Prism. The average value of crude protein for Cirrhinus mrigala was found higher than Labeo rohita (51.7% and 39.04%) similarly the water contents were also found higher in Cirrhinus mrigala than Labeo rohita (75.88% and 73.95%). The average value of dry matter and muscle fats contents were lowered in Cirrhinus mrigala than Labeo rohita (24.11% and 26.04%) and (13.00% and 13.45%) respectively. However, the ash contents were similar in both of experimental species (23.91% and 23.93%). From these results, it is concluded that both Cirrhinus mrigala than Labeo rohita are very proteineous and have low fats contents so it is very good for the health of consumers. Further research is recommended on the other parameters and miss rays of this work.
اظهر المزيد [+] اقل [-]Adaptation and Some Quality Parameters of Cool Season Turfgrass Species in Samsun Conditions
2020
İlknur Ayan | Sedat Arslan | Zeki Acar
The aim of this study is to determine adaptation and quality parameters of some cool season turfgrass cultivars and species, In the scope of this study, leaf form, variation of leaf colour according to the seasons, tiller number, thinning ratio, weed ratio and general appearance of the species were determined. The experiment was established according to confounding design with four replications in Samsun Conditions at November, 2010. According to 1000 seed weight and characteristics of the plants seeding ratios were determined as pure and viable seed as follows; Lolium perenne 40 g m-2, Festuca rubra var. rubra and Festuca rubra var. commutata 30 g m-2, Festuca arundinacea 40 g m-2, Poa pratensis 20 g m-2, Festuca rubra trichophylla 30 g m-2, Agrostis stolonifera and Agrostis tenuis 5 g m-2, Festuca ovina 25 g m-2. According to the results obtained from this study it was determined that species/cultivars have some superiority to each other because of their different morphological and physiological characteristics. When we consider weed competition, Lolium perenne and Festuca arundinaceae cultivars have to be added to the mixture in order to decrease weed competition. There was colour variation distinctively depending on the seasons for all species. But, compare to the others, cultivars of Agrostis sp. and Poa pratensis cultivars have the potential to keep leaf colour in different seasons. Leaf form and appearance of Festuca rubra, Poa trivialis and Festuca ovina are better than the others. In order to keep good conditions of turfgrass areas, especially after cutting in summer period, Poa pratensis and Poa trivialis should added in mixtures to get benefit their higher regenerating power.
اظهر المزيد [+] اقل [-]Near Infrared Reflectance Spectroscopy and Multivariate Analyses for Fast and Non-Destructive Prediction of Corn Seed Germination
2020
Nafiz Çeliktaş | Ömer Konuşkan
The application of near-infrared reflectance spectroscopy (NIRS) and multivariate analysis for determining the seed germination rate of corn genotypes was assessed. Seed samples about 90 gr belong to commercial and local corn varieties at various ages were scanned with FT-NIRS on the reflectance mode from 1000 to 2500 nm wavelength. Filter paper technique showed the seed germination rates varied between 18-100% depending on the genotypes after 7 days at ±25°C. Partial least squares regression (PLSR) was applied to the reference values corresponding to the spectra. The best statistical results obtained from the pre-treatment combinations of Smooth Savitzky-Golay 9 Points (sg9), MSC full and normalization to unit length (nle). The regression coefficient of calibration (R2C) and prediction (R2P) of the created NIRS calibration via chemometric software NIRCal are realized 0.97 and 0.98 respectively for the property of corn germination rate. The standard error of both calibration (SEC) and prediction (SEP) were almost overlapping (4.17%, 4.61% respectively). The prediction accuracy of the final NIRS model was quite reasonable with the acceptable root mean standard error of prediction (RMSEP) as 8.88%. According to the residual predictive deviation (RPD) index (4.18), the accuracy of the NIRS model regarded as in the best category. Therefore, the NIRS model developed here is sufficient to predict the corn seed germination rate very fast and non-destructively without using any regents.
اظهر المزيد [+] اقل [-]Klasik Homojenizasyona Kıyasla Yüksek Enerjili Ultrason Uygulamasının Sütün Homojenizasyon Etkinliğine ve Süt Yağ Globül Boyutuna Etkisi
2020
Vildan Akdeniz | A. Sibel Akalın
Sütün yağ globül boyutu, süt ürünlerinin kalitesini özellikle duyusal ve reolojik özelliklerini önemli ölçüde etkilemektedir. Bu sebeple pek çok süt ürününün üretiminde yağ globüllerini küçültmek amacıyla homojenizasyon işlemi uygulanmaktadır. Bu çalışmada, 4 farklı güçte (90W, 180W, 300W ve 400W) 15 dakika süreyle süte uygulanan ultrasonik homojenizasyon işleminin 150 bar basınçta tek kademeli klasik homojenizasyona ve 150/50 bar basınçta çift kademeli klasik homojenizasyona kıyasla yağ globül boyutuna ve homojenizasyon etkinliği üzerine etkisi incelenmiştir. Farklı metotlarla homojenize edilen süt örneklerinin homojenizasyon etkinlik değeri % olarak, lazer kırınımı prensibiyle çalışan cihazlarla Dv 0,99, Dv 0,90, Dv 0,50 hacimsel çap değerleri mikrometre (µm) olarak ve süt yağ globül boyutları nanometre (nm) olarak belirlenmiştir. Ayrıca tüm süt örneklerinde yağ globüllerinin mikroskobik görüntülenmesi gerçekleştirilmiştir. Ultrason işleminin hem tek kademe hem de çift kademe klasik homojenizasyon işlemine göre süt yağ globül çaplarını küçültmede daha etkili olduğu belirlenmiştir. Uygulanan ultrason işleminin gücü arttıkça süt yağ globül çaplarını küçültme etkinliği de artmış ve yağ globül boyutundaki en fazla küçülme 400W 15 dakika ultrason uygulamasında saptanmıştır.
اظهر المزيد [+] اقل [-]The Effect of Feeding on Environmental Pollutant Emissions in Broiler Production
2020
Özgün Işık | Figen Kırkpınar
Environmental pollution is defined as the disruption of normal ecological balance with emmision of various substances and energy residues as a result of human activities. Animal production is one of the major human activity that enables this emission to increase significantly. Although ruminants play an important role in the effects of animal production on environmental pollutant emissions, the effects of poultry production and broiler production are also worth considering. As in all livestock types, the main factor that has a direct impact on environmental pollutant emissions is feeding for this animal types too. High nutrient needs of broilers and production processes of feed containing these nutrients; greenhouse gas causes increased nitrogen and phosphorus emissions; consequently, they cause air, soil and water pollution to multiply. Changes in protein and amino acid levels or the use of certain feed additives in feeds affect the emission value of broiler production. In addition, the feeding methods also has an effect on these emission values. When these effects are taken into consideration, it is possible to reduce the emission values in broiler production. In this review, environmental effects of broiler nutrition examined in terms of feed production, nutrient emission by manure, presentation of feed and feed form.
اظهر المزيد [+] اقل [-]Genetic Diversity and Some Fruit Characteristics of Quince Genotypes Collected from Kayseri Region
2020
Aydin Uzun | Ayşe Çil | Mehmet Yaman | Ömer Faruk Coşkun
Turkey with diverse ecologies harbours several plant and fruit species. Several species grow naturally are grown commercially. Kayseri and surroundings constitute natural spread zone of some fruit species. This study was conducted to determine genetic diversity and some pomological characteristics of 31 seed-propagated quince (Cydonia oblanga Mill.) genotypes. For pomological characteristics, fruit length, fruit width, water soluble dry matter (WSDM) and total acidity analyses were performed. Molecular analyses were conducted with the aid of 15 SRAP primer combinations. Genetic diversity in investigated genotypes varied between 0.53- 0.92 and genotypes were gathered under two main groups. Primer base lengths varied between 400- 1700 bp. A total of 97 clear bands were obtained and 91 of them were polymorphic (polymorphism ratio = 87.7%). Present findings revealed that existing quince populations of the region should be preserved and be used in further genetic studies.
اظهر المزيد [+] اقل [-]Romanov Kuzularının Vücut Özelliklerinin Tanımlanmasında Doğrusal ve Doğrusal Olmayan Modellerin Karşılaştırılması
2020
Yalçın Tahtalı | Ahmet Tahsin Yaldızbaş
Bu araştırmada Romanov kuzularının vücut özelliklerinin gelişiminin tanımlanması amacı ile 50 Romanov kuzusunun doğumdan itibaren 180. yaş gününe kadar olan büyüme döneminde her 15 günde bir canlı ağırlık, vücut uzunluğu, cidago yüksekliği özelliklerine ilişkin kayıtlar alınmış ve elde edilen veriler ile doğrusal modellerden Linear, Kuadratik ve Kübik model, doğrusal olmayan modellerden Gompertz ve Lojistik modelleri kullanılarak büyüme eğrilerine ait parametreler hesaplanmıştır. Büyüme eğrileri içinde en iyi uyumu gösteren modelin belirlenmesinde belirtme katsayısı (R2), hata kareler ortalaması (HKO) ve ortalama mutlak sapma (OMS) değerlerinden yararlanılmıştır. Elde edilen sonuçlara göre en yüksek R2 değeri ile en düşük HKO değerleri sırası ile canlı ağırlıkta 0,992-0,591, cidago yüksekliğinde 0,993-0,441, vücut uzunluğunda 0,986-1,164 olarak tespit edilmiştir. Ele alınan bütün vücut özelliklerinde en yüksek R2 değeri kübik modelden elde edilmiştir. Büyüme eğrisi modellerine ait parametrelerin belirlenebilmesi için SPSS istatistik programı kullanılmıştır. Bu sonuçlara göre Romanov kuzularının vücut özelliklerinin gelişimini en iyi açıklayan ayrıca büyüme eğrilerine en uyumlu modelin Kübik model olduğu tespit edilmiştir.
اظهر المزيد [+] اقل [-]Use of Forest Products Who Lives in Mountain Areas of Mersin Province
2020
Sedef Akıncı | Dilek Bostan Budak
In the study, which is conducted in mountain villages of Mersin province, 99 people selected by simple random sampling method. The data were collected by face to face interviewed. 64.6% of the individuals were male, 35.4% female and 35.4% had a primary school diploma. The average household width was 2.38 and the average age was 50.32. Small ruminant and beekeeping activities are the main source of livelihood for individuals who lives in mountain villages, but also they are benefiting from forest products. As forest products, medicinal aromatic plants such as centaury, thyme, rosehip, mushrooms, blackberries, carob, and straw are used. Men work more intensively in jobs such as wood, timber and resin, which require heavy labour, while products such as centaurs, blackberries and rosehips are collected by women. Individuals' perceptions of forest and forest products do not change according to gender, age and education level. This is because they need the forest and its’ products to maintain their lives. In general, it is determined that the population living in the mountain villages live a life based on forest and forest products. In this context, protection of forest areas in the region is very important both for the prevention of environmental damage and for the people of the region. In addition to individual awareness, support should be provided by the relevant ministries on the use and protection of forests and products. The aim of this study was to identify the use of forest products and opinion about forest who lives in mountain villages of Mersin.
اظهر المزيد [+] اقل [-]Review and Meta-Analysis of PPR in Goat and Sheep of Bangladesh from 2000 to 2019
2020
F. M. Yasir Hasib | Sharmin Chowdhury
Peste des petits ruminant (PPR), considered as goat plague is the most fatal infectious viral disease for small ruminants. This disease is endemic in many parts of the world including Bangladesh causes extensive loss on livestock and economy. This study was conducted to estimate the prevalence of PPR and this is the first meta-analysis on PPR as per authors knowledge in Bangladesh. Articles published during the years 2000 to 2019 on the topic PPR within three electronic databases were used for prevalence estimation by random effect meta-analysis model. A total of 39 articles were finally included in the model for prevalence estimation of goat and sheep. 1589784 goat and 142036 sheep were included in the study for analysis. Analysis showed prevalence of PPR was 15.17% (95% CI: 15.11-15.22) and 9.17% (95% CI: 9.02-9.32), respectively for goat and sheep. As PPR is affecting small ruminants in variable percentage in different districts of Bangladesh, this study estimates the cumulative prevalence of Bangladesh. This study may act as a baseline for taking effective control strategy of PPR in Bangladesh through proper allocation of resources on a priority basis.
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