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Impacts of Macronutrients on Gene Expression: Recent Evidence to Understand Productive and Reproductive Performance of Livestock Texto completo
2018
Md. Mahmodul Hasan Sohel | Yusuf Konca | Mehmet Ulas Cinar
In order to identify the effects of nutrients on gene expression and to assess the interactions between genes and nutrition by means of various cutting-edge technologies, the interdisciplinary branch ‘Nutrigenomics’ was created. Therefore, nutrigenomics corresponds to the use of knowledge and techniques of nutrition, genomics, transcriptomics, proteomics, epigenomics, and metabolomics to seek and explain the cross-talk between nutrition and genes in molecular level. Macronutrients are important dietary signals that control metabolic programming of cells and have important roles in maintaining cellular homeostasis by influencing specific gene expression. Recent advancements in molecular genetics studies, for instance, use of next-generation sequencing, microarray and qPCR array to investigate the expression of transcripts, genes, and miRNAs, has a crucial impact on understanding and quantitative measurement of the impact of dietary macronutrients on gene function. This review will shade a light on the interactions and mechanisms how the dietary source of macronutrients changes the expression of specific mRNA and miRNA. Furthermore, it will highlight the exciting recent findings in relation to animal performance characteristics which eventually help us to identify a dietary target to improve animal production.
Mostrar más [+] Menos [-]Extent of Microbial Contamination of Refined and Unrefined Vegetable oils sold in South-west Nigeria Texto completo
2018
Oluwafemi Flora | Oni Eniola Oluyemisi | Kareem Sarafadeen Olateju | Omemu Adebukunola Mobolaji | Kolapo Lawrence Adelodun
Oils constitute a major source of plant-based protein. A major limitation to optimal oil consumption in sub-tropical region is fungal infestation and consequent mycotoxin contamination. Ten refined and eight unrefined vegetable oils were randomly purchase from open markets and screened for microbial contamination using standard microbial procedures. Twenty six fungi isolates were obtained from the vegetable oil samples, the isolates were identified as Aspergillus fumigatus (43.0%), Mucor (17.9%), Saccharomyces cerevisiae (10.7%), Aspergillus niger (7.1%), Aspergillus flavus (7.1%), Penicillium spp (7.1%), Aspergillus oryzae (3.6%), Mucor (17.9%) and Rhizopus spp (3.6%). Five out of the ten refined vegetable oil samples had no fungal contamination. A. flavus and A. oryzae were absent in all the refined oil samples while A. niger was absent in all the unrefined oil samples. Isolation of mycotoxigenic fungi such as Aspergillus spp. is of vital importance in the food industry. Education and training of processors and consumers is recommended.
Mostrar más [+] Menos [-]F1 ve F2 Düzeylerindeki Melez Bezelye Varyetelerinin Fenolojik Özellikleri Arasındaki İlişkilerin Korelasyon Katsayısı Analizi ile Belirlenmesi Texto completo
2018
Ümit Girgel | Alihan Çokkızgın | Mustafa Çölkesen | Hatice Çokkızgın
Bu çalışma yabani ve ticari bezelye çeşitlerinin (Utrillo ve Bolero) çaprazlaması sonucu elde edilen melez bitkiler üzerinde yapılmıştır. F1 ve F2 generasyonu 2016 yılında Bayburt Üniversitesi, Gıda Tarım ve Hayvancılık Uygulama ve Araştırma Merkezi arazisinde yetiştirilmiştir. Araştırmada bakla boyu, ilk bakla yüksekliği, dal sayısı, gövde çapı, bakla uzunluğu, bakla genişliği, bitkideki bakla sayısı ve bakladaki tane sayısı özellikleri üzerine korelasyon katsayısı analizi uygulanmıştır. F1 ve F2 melez bezelye materyaline ait sonuçlar birlikte değerlendirilerek korelasyon analizi göz önüne alındığında, bitki boyu ile dal sayısı (0,4779*), bitki boyu ile ilk bakla yüksekliği (0,4188*) arasında, gövde kalınlığı ile bakla boyu (0,4397*) ve gövde kalınlığı ile bitki başına bakla sayısı arasında (0,6185**) olumlu ve önemli bulunmuştur. Ayrıca dal sayısı ile bitki başına bakla sayısı arasında (0,5774**), bakla boyu ile bakla eni arasında (0,4691*) ve bitki başına bakla sayısı ile baklada tane sayısı arasında (0,4662*) olumlu ve önemli ilişkiler bulunmuştur.
Mostrar más [+] Menos [-]Changes in Some Soil Chemical and Biological Properties on the Growing Season of Sesame in Çukurova Region Texto completo
2018
Şahin Cenkseven | Burak Koçak | Nacide Kızıldağ | Hüsniye Aka Sağlıker | Cengiz Darıcı
In present study, some soil characteristics of Sesamum indicum L. (Sesame) and its adjacent blank field (control) were compared in a growing season as pre (PreC and PreS) and post (PostC and PostS) harvest in Adana, Turkey. Soil macro (C, N, P and K) and micronutrients (Cu, Zn, Mn and Fe), carbon (Cmin) and nitrogen mineralizations and soil aerobic bacteria and fungi counts were determined in before and after harvest soils. Soils were humidified at 80% of their field capacity and then monitored for 45 days at 28 °C to determine soil carbon (Cmin) and nitrogen (Nmin) mineralization. Generally, macro and micronutrients (Cu, Zn, Mn and Fe) were higher in control than sesame field except phosphorus (P2O5) and there were found significant differences between them before and after harvest. Aerobic bacteria and fungi populations were decreased after harvest while fungi populations were increased in sesame soils compared to control. Soil CO2-C evolution was higher in sesame field than control. Rates of carbon mineralization was in order as following PostC < PreC < PostS< PreS. Rate of Nmin was significantly higher in sesame soils before harvest but it was lower after harvest compared to control. Carbon mineralization rates in sesame grown soils were significantly decreased and it was in order as following PostC < PreC < PostS < PreS. Decrease in soil carbon mineralization after harvest can be explained with decrease in soil microbial populations in short term.
Mostrar más [+] Menos [-]Analysis of Consumer’s WTP for Cowpea Varieties in Osun State, Nigeria: the Hedonic Pricing Approach Texto completo
2018
Rabirou Kassali | Abayomi Yusuf Oyewale | Olufemi Adedotun Yesufu
Analysis of consumer preferences for cowpea varieties in Osun State was carried out with a view to identifying attributes that determine price variation among cowpea varieties and the effect on consumer’s willingness to pay for those varieties. A multistage sampling technique was used to randomly select 240 respondents for the study, comprising 180 cowpea consumers and 60 retailers. Primary data were collected on cowpea varieties, their attributes and the consumer’s willingness to pay for cowpea varieties using well structured questionnaire. Data collected were analysed using both descriptive and inferential statistics. The results showed that out of thirteen varieties found in the area, only nine varieties of cowpea were common in the market. The quality of each variety differs which explained variation in their price. In terms of preference the Oloyin variety is preferred most by 78% of consumers. Weevil resistance had the highest rank among the cowpea attributes. Oloyin had the highest WTP followed by Milk and Drum with ₦303, ₦237 and ₦213 per kg, respectively. Hedonic pricing methods provide a statistical estimate of premiums and discounts for cowpea attributes. Results indicated that weevil resistance was the most important attribute to consumer. Cowpeas with weevil damage tolerance, brown colour, large grain size and short cooking time commanded price premium for almost all the varieties. The consumer discounted prices for insect damage, small size, white colour, smooth skin and grain colour mixed together. The study concludes on the need for breeders and research institutes to incorporate these cowpea attributes that attracted price premium into their cowpea breeding programmes.
Mostrar más [+] Menos [-]An Investigation on Cd, Cu, Zn, Pb, Cr, Fe Levels in Diopatra neapolitana (Delle Chiaje, 1841) and Sediments That Inhabit Texto completo
2018
Elif Çağrı Taş | Zeki Ergen | Uğur Sunlu
This study was carried out to determine the concentrations of some heavy metals (Cd, Cu, Pb, Zn, Cr and Fe) in Diopatra neapolitana (Delle Chiaje, 1841) and sediments in the middle region of İzmir Bay. In the two-year period between autumn 2002 and summer 2004, it has been determined that metal concentrations in D. neapolitana vary over time. The order of accumulation of metal concentrates in D. neapolitana was determined as Cd
Mostrar más [+] Menos [-]The Relationships Between Egg Production, Age and The Hatching Traits of Pheasants Texto completo
2018
Ahmet Uçar | Musa Sarıca
Pheasant rearing is rated in three main categories: show and hobby, public interest, and stocking for game birds and edible purposes. The goal of this pheasant breeding station is to put stocking for game birds in their natural habitat, mainly in the Karadeniz region. Contribution to the issues related to incubation in this station and determination of effective reproduction age by setting production period. The aim of this study is to determine how significant performance criteria like egg production, fertility, hatchability and embryonic mortality are, depending on age and on seasonal changes. Our research has been carried out at the Gelemen Pheasant Breeding Station in Samsun. The pheasant breeds that are used on the farm are made up of 114 male and 800 female pheasants (1♂:7♀), of Hungarian and Caucasian genotypes. During the egg-laying period, which lasts for 16 weeks from the end of March (at the age of 45 weeks) to the middle of July (at the age of 60 weeks), egg production was recorded daily and evaluated once a week, and incubation yield was recorded nine times in total. Differences between weeks of age, in terms of egg production, egg and chick weights, fertility rate, incubation yield and embryonic mortality, have been found to be statistically significant. However, hatchability has been found to be statistically insignificant.
Mostrar más [+] Menos [-]Deficit Irrigation Effects on Cabbage (Brassicaceae Oleracea var. capitata L. Grandslam F1) Yield in Unheated Greenhouse Condition Texto completo
2018
Hakan Büyükcangaz
The aim of this study was to determine the effect of deficit irrigation on yield for cabbage grown under unheated greenhouse condition. The research was carried out at the Agricultural Research Station of Yenişehir High School of Uludağ University in Bursa, Turkey, in 2008. In the study, water was applied to cabbage as 1.00, 0.75, 0.50, 0.25 and 0.00% (as control) of evaporation from a Class A Pan corresponding to 2 day irrigation frequency. Irrigation water applied ranged from 70 to 520 mm and water consumption ranged from 90 to 548 mm. The effect of irrigation water level on the yield, head height, head diameter, head weight and dry matter were found to be significant. The highest yield was 72.8 t ha-1. Crop yield response factor for cabbage (ky) was found as 1.036. The highest values of water use efficiency (WUE) and irrigation water use efficiency (IWUE) for 2008 year of K2cp treatment was calculated to be 0.143 kg m-3 and 0.137 kg m-3, respectively. K2cp application (75%) can be recommended as the most effective irrigation level for the cabbage to which drip irrigation is applied under scarce and unheated greenhouse conditions.
Mostrar más [+] Menos [-]Niğde Bölgesinde Bulunan Ökse Otunun Yem Değerinin In Vitro Gaz Üretim Yöntemi İle Belirlenmesi Texto completo
2018
Mustafa Boga | Sema Yaman | Sibel Canoğlu Doğan | Aykut Burğut
Bu çalışma, ökse otu (ÖO) olarak bilinen (Viscum album L.)’nin yem değerinin ortaya konulması amacı ile yürütülmüştür. Bu nedenle, kayısı (Purunus cinsi) ve badem (Amygdalus communis L.) ağaçlarından alınan ÖO numuneleri; bütün bitki, sap, yaprak ve meyveler olmak üzere dört alt gruba ayrılmıştır. Kesimhaneden alınan rumen sıvısı ve içeriği kullanılarak In vitro gaz üretim tekniği ile ÖO örnekleri 3, 6, 9, 12, 24, 48, 72 ve 96 saat süre ile inkübe edilmiştir. Örneklerin In vitro organik madde sindirilebilirliliği (OMS), metabolize olabilir enerji (ME) ve net enerji laktasyon (NEL) değerleri 24 saatlik gaz çıkışına bağlı olarak hesaplanmıştır. Kayısı ağacından toplanan ÖO bitkisinin farklı kısımlarındaki (bütün bitki, sap, yaprak ve meyveler) ham protein, ham yağ, ADF ve NDF içerikleri, 90,25 ile 120,82, 80,05 ile100,13, 190,29 ile 330,17, 280,85 ile 500,86 g kg-1 KM aralığında bulunurken badem ağaçlarından toplanan ÖO bitkilerinin aynı ham besin madde içerikleri sırasıyla 100,37 ile 140,67, 80,42 ile 100,35, 200,45 ile 360,87, 340,29 ile 530,10 g kg-1 KM olarak bulunmuştur. Kayısı ağaçlarından toplanan ÖO’nun OMS, ME ve NEL değerleri, 0,60 ile 0,74, 9,0 ile 11,17 ME kg-1 KM ve 6,08 ile 7,71 NEL kg-1 KM iken badem ağaçlarından toplanan ÖO In vitro gaz testinden hesaplanan aynı parametreleri sırasıyla 0,63 ile 0,76, 9,40 ile 11,26 ME kg-1 KM ve 6,39 ile 7,98 NEL kg-1 KM arasında değişmiştir. Ökse otunun farklı bölümlerinin OMS, ME ve NEL değerlerinde istatistiksel olarak farklılıklar elde edilmiştir. Genel olarak, ÖO protein ve lif açısından uygun, kaba yemlerle karşılaştırıldığında ham yağ içeri bakımından yüksek ve ME ve NEL içeriğin bakımından ise hayvan beslemede hammadde olarak kullanılacak kadar iyi olduğu belirlenmiştir. Sonuç olarak, sağlık ve performans üzerindeki zararlı etkileri beslenme denemelerinde gösterilmedikçe ökse otu, geviş getirenlerin rasyonlarında kullanılabilecek iyi bir potansiyel yem maddesidir.
Mostrar más [+] Menos [-]Examination of Relationships Between Some Biochemical and Oxidative Stress Traits by Canonical Correlation Analysis in Broiler Chickens Texto completo
2018
Sıddık Keskin | Emine Berberoğlu | Şenay Sarıca
Canonical correlation analysis is a multivariate method to examine the relationships between two (X and Y) sets of variables when all measurements are obtained from same broilers. Canonical correlation analysis aims to obtain new variables called as canonical variates formed by linear combinations of the original variables for each set and by maximizing the relationships between two set. The purpose of this study is to examine the relationships between 8 biochemical traits (Aspartate Aminotransferase (AST), Albumin, Triglyceride, Total Cholesterol, Low Density Lipoprotein (LDL) cholesterol, Glucose, Total Protein and Alanine Aminotransferase (ALT)) and 4 oxidative stress traits (total antioxidant status (TAS), total oxidant status (TOS), oxidative stress index (OSI), lipid peroxide (LPO)) in broiler chickens. As a result, the correlation between the first canonical variable pair was found 0.594.
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