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Estimating Time of Weed Emergence in Cucumber (Cucumis sativus L.) Full text
2015
Nihat Tursun | İrfan Ersin Akıncı | Mustafa Şahin | Ahmet Uludağ
Modelling is carried out for eleven major weeds in cucumber to develop estimated models for weed emergence time. Weed species were grouped according to their emergence patterns. Amaranthus retroflexus, Chenopodium album, Heliotropium europaeum, Polygonum aviculare and Solanum nigrum were early emerging, Convolvulus arvensis, Cyperus rotundus, Cynodon dactylon, Portulaca oleracea and Sorghum halepense were season long emerging Tribulus terrestris was the late emerging weed species. Different non-linear growth curves (Chapman-Richard, Weibull, logistic, Gompertz and cubic spline) fitted to the data of cumulative percent emergence for the different species and years. Cubic spline seemed the best model for many species.
Show more [+] Less [-]A Research on Red Meat Consumption and Preferences: A Case Study in Tekirdağ Province Full text
2015
Ebru Onurlubaş | Neslihan Yılmaz | Hasan Gökhan Doğan | Halil Kızılaslan
In this study, 384 persons have been subjected to questionnaire made in order to determine the red meat consumption and preferences of the people living in the central district of Tekirdağ province. In the study it was determined that all the consumers consumed red meat. According to the findings of the research, the annual red meat consumption per capita was determined to be 34.22 kg. Considering the red meat consumption of the people subjected to research, it was determined that beef meat was the most preferred kind among all the other kinds of red meat. In the study, it was determined that in red meat buying place preference consumers prefer traditional retailers such as butcher been specialized. Consumers prefer red meat due to be the most nutritious, respectively be healthy, delicious, habit and easy to access. It was determined that 47.5% of consumers participated in the study were ready to pay extra for red meat in the food safety. It was determined 75.6% people participated in the study consume more red meat if the price of red meat cheapens. A logit model was used for analyzing the factors that influence the red meat consumption of the families participating in this research. According to the logit model results, it was determined that the families’ red meat consumption amount is affected from statistical variables such as; number of family members, education level, spouse's employment status, income, cheapening of the price of red meat .
Show more [+] Less [-]Mycoflora and Aflatoxin levels of Left-over Harvest in some Farms, South West of Nigeria Full text
2015
Flora Oluwafemi | Aminat Omodolapo Badmos | Adelodun Lawrence Kolapo
More than ninety percent of the ruminant livestock in Nigeria lies in the hands of herders who keep them under extensive and semi-intensive management systems, whereby the animals rely only on natural pasture and crop residues for survival. In this work, the mycoflora and aflatoxin levels of ten farms were determined by sampling crop residues on farms grazed by cattle. Samples of the remains of farm harvest were surface-disinfected and cultured using standard microbiological techniques while aflatoxins in the left over harvest were determined using High Performance Liquid Chromatography (HPLC) with fluorescence detection. Fungal counts in leftover harvest ranged from 1.2 x 106 to 3.8 x106cfu/g. Aspergillus flavus, A. terreus, A.parasiticus, Rhizopus sp and a yeast, Candida sp were most prevalent on all the investigated crop residues. Aflatoxin B1 (AFB1) on the crop residues ranged between 3.0 and 13.30 μg/Kg, while the levels of AFG1 were between 2.30 and 4.50 μg/Kg. Results of the present study is indicative that the accumulation of these doses of AFB1 can lead to transfer of AFB1 into cattle and subsequently into milk. So there is an urgent need to control the feeding pattern of cattle in order to protect the health of the consuming public.
Show more [+] Less [-]Effect of Egg Shape Index on Hatching Characteristics in Hens Full text
2015
Erol Aşcı | İsmail Durmuş
In this study, the effects of egg shape index on hatching characteristics (fertility rate, embryo mortality, hatchability of fertile eggs and hatchability), egg weight loss, chick weight, sex ratio and quality of chicks were investigated. A total of 960 eggs of ATAK- S hybrid parents obtained from Ankara Poultry Research Station were divided into three different groups (SI≤71, 72≤SI≤76, SI≤77) based on shape index and were used. A significant relationship between fertility rate and late embryonic mortality was found in the shape index groups. On the other hand, no differences were found in the rate of weight loss at 18 day, early and middle embryonic mortality, malposition rate, hatchability, sex ratio and chick quality among the shape index groups. It was concluded that shape index affected the hatching results and also that eggs of abnormal shape index should not be used for hatching.
Show more [+] Less [-]Physicochemical Evaluation of Seeds and Oil of Nontraditional Oil Seeds Full text
2015
Adam Ismail Ahmed | Awad Mohammed Babeker | Ahmed Mohammed Ahmed Elamin | Elshiekh Awadelkarim Ibrahim
The present work was conducted in the Laboratory of Biochemistry and Food science department, Faculty of Natural Resources and Environmental Studies, University of Kordofan, in order to evaluate some nontraditional oil seeds these are i.e. Marula (Sclerocarya birrea), Roselle (Hibiscus sabdariffa L.) seeds and Christ’s thorn (Zizyphus spina-christi) seeds. The seeds of the roselle and Christ’s thorn fruits were procured from Elobeid local market, North Kordofan State, while marula fruits were obtained from Elnuhod, West Kordofan State. The proximate composition of the seeds, cake and christ’s thorn pulp was done. Some chemical and physical properties were performed for the extracted oil. The results revealed that proximate composition of the seeds and cake differ statistically among the studied materials. Significant differences were observed among the oil extracted from these species; moreover, these oils differ significantly in color and viscosity only.
Show more [+] Less [-]The Structure, Problems and Solutions of Fruit Sapling Producing Enterprises in Hatay Province Full text
2015
Nuran Tapkı | Faruk Emeksiz | Erdal Dağıstan
In this study, examined the structure and problems of fruit sapling producing enterprises and offers solutions in The Hatay Province. The data were obtained from 92 enterprises by the method of full count and face to face with producers. Of the 51.15% population in creating family business primary school graduates, the proportion of university graduates remained at 8.62%. The rate of agricultural engineer employment in the businesses is 2.18%. While 64.05% of the enterprisers the father's profession, this profession began taking 3.37's% of nursery education. Average potential family labour is the 4.22 male labour forces in enterprises. The family labour utilization rate was calculated as 50.71%. Of the 88.48% in fruit sapling businesses, 5.32's% in other agricultural productions and 5.22's% in non-agricultural jobs of total used men workforce. The businesses have average total land size of 25.74 acres which it has established 12 acres of fruit sapling production land. While 74.58% of the total fruit sapling land is property, 25.42's% is for rent situation. The operating capital is calculated as the average of 229.308 TL. The most common species of fruit sapling production were citrus (46.20%) and olive trees (35.29%). The problems faced by most of the farms in the region were high input prices, excessive bureaucratic procedures preventing memberships into the union, an inadequate amount of support provided by the state, production-threatening diseases of plants and difficulties in finding qualified staff in the region. The results show that enterprises need to increase their production capacity, to unite under one organization to facilitate the resolution of problems.
Show more [+] Less [-]L-Tryptophan, Melatonin, Serotonin Profiles in the Foods and their Effects on Health Full text
2015
Seda Kurtulmuş | Tuğba Kök Taş
Nowadays, depending on the progress of science and technology, our eating habits have changed. The shape and quality of nutrition is important for human health. Especially, some food components have various effect on central nervous system such as depression, anxiety, sleep, appetite. Food constituents are transported into the central nervous system via the neutral amino acids such as phenylalanine, leucine, isoleucine, tyrosine and valine. Amino acids have an important role in human nutrition. It cannot be synthesized in the body and one of the essential amino acids that must be taken outside, trytophan, is indispensable in human nutrition because of it has the many functions. In recent years, scientific community concentrated on the various functions of L-Trytophan (L-Trp) as pioneer in the secretion of the hormones serotonin and melatoninin in the human body. The hormones serotonin and melatonin is responsible for activities such as psychology, sleep, body temperature, blood pressure balance, antioxidant effect, cancer inhibitor, sexuality, autism and circadian rhythms in human body that they are available in various foods such as milk, kefir, yogurt, orange, strawberry, grape, olive oil, walnut, prune, nut, pomegranate, coffee, kiwi and banana. In this study, L-Trp, serotonin and melatonin biosynthesis and metabolism, food profiles and in terms of their physiological and biological effects on human health has been compiled.
Show more [+] Less [-]Effect of Formic Acid on In Vitro Ruminal Fermentation and Methane Emission Full text
2015
Kanber Kara | Eray Aktuğ | Alper Çağrı | Berrin Kocaoğlu Güçlü | Erol Baytok
In this study, it was aimed to investigate the effects of formic acid on the in vitro methane production and in vitro ruminal fermentation of alfalfa hay. Effect of 0.0 (control group: YF0), 0.1, 0.2, 0.3, 0.4 and 0.5 ml/L (experimental groups: YF1, YF2, YF3, YF4, and YF5 respectively) formic acid (Amasil85-liquid) addition to rumen fluid on ruminal fermentation parameters of alfalfa hay were determined by using in vitro gas production techniques. Methane production of in vitro incubation increased (to about 20%) with addition of linearly increased formic acid. Linearly increased levels of formic acid addition to rumen fluid has significantly changed the production of in vitro total gas production, metabolic energy (ME) and organic matter digestibility (OMD) at linear, quadratic and cubic. The addition of 0.1 ml/L and 0.2 ml/L formic acid to rumen fluid significantly decreased in vitro total gas production, ME and OMD however addition of 0.3 ml/L and 0.4 ml/L formic acid was not changed in vitro gas production, ME and OMD levels and 0.5 ml/L formic acid was significantly increased all these parameters. Ruminal pH was not changed by addition of formic acid. Formic acid is a safe feed additive because of its properties antibacterial and flavorings and also is used as a fermentation promoter in silage. In this study it has been observed that all doses of formic acid increased in vitro enteric methane production and low doses decreased in vitro total gas production, ME and OMD and high doses have increased all these parameters. High doses have a positive effect on ME and OMD; however formic acid should be used at limited levels in diets due to the negative effect of increasing greenhouse gases. The effect of formic acid addition to the feed raw matter and rations of all livestock would be beneficial to investigate in terms of digestive system parameters and global warming, further in vitro and in vivo studies.
Show more [+] Less [-]Biopreservative in Foods: Nisin (E234) Full text
2015
Başar Uymaz | Pınar Şanlıbaba
Fermentation is the oldest traditional method in order to protect against spoilage and pathogenic microorganisms. Thermal treatment, pH and water activity lowering and preservative addition other food preservation techniques that are commonly used. Although, as preservatives, many improved antibiotic and chemical agents have been gained, there are some other factors such as rapid resistance to antibiotics used in bacteria, in order to limit their use in food, to be found dimensions of threatening human health of the chemical protection and to cause allergic reactions. Recently, studies on bacteriocins that are produced by the safe bacteria, such as lactic acid bacteria, contain no toxic and adverse effects for human consumption have gained sudden intensity in accordance with the request against consumers in developing microbiologically safe and minimal processed food. There are some important effects using of bacteriocins accepted the new generation of antimicrobial agents as food preservatives such as extension of shelf life, reducing of the use of chemical preservatives and the economic loss caused degradation by microorganisms. Nisin, defined as GRAS (Generally Recognized as Safe) by FDA and named the E234 code 'Nisin-protective' or 'natural protective' located in the food additives list, first used in 1988 as a natural preservative by prohibiting of antibiotics using in food in the US. Nowadays in more than 50 countries, there have been more successful implementation of the nisin protected up the food from milk and dairy products to canned foods many food products
Show more [+] Less [-]Effect of Follicle Size and Follicle Stimulating Hormone Concentration on Nuclear Maturation of Bovine Oocytes In Vitro Full text
2015
Uğur Şen | Emre Şirin | Ercan Soyadan
The aim of the study was to investigate the effect of follicle size and follicle stimulating hormone (FSH) concentration on nuclear maturation of bovine oocytes in vitro. Follicles on bovine ovary were classified into 3 groups according to the diameter; small (
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