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Consumer s Willingness to Pay for Organic Chicken Meat in Samsun Province of Turkey
Orhan Gunduz,Zeki Bayramoglu
Journal of Animal and Veterinary Advances , 2012, DOI: 10.3923/javaa.2011.334.340
Abstract: The study aimed to determine consumers willingness to pay extra money for organically raised chicken meat rather than conventionally raised chicken meat. Research data was collected from randomly selected 150 households in Samsun province by using contingent valuation survey method. We used an ordered probit approach for identifying consumer characteristics and attitudes that influence the WTP for organically raised chicken meat. Research results revealed that 81% of the respondents would be willing to pay a premium for organically raised chicken meat. The ordered probit model results showed that willingness to pay was mainly related to tree socio-economic factors which are monthly household income, education level of household head and monthly conventionally raised chicken meat consumption together with 2 attitude factors which are whether previously organic food consumption in the household and respondents opinion about risks of conventionally raised chicken meat to human health. These factors were statistically significant and had positive effect on the WTP.
Marek Bobko,Peter Ha??ík,Alica Bobková,Vladimíra Kňazovická
Journal of Microbiology, Biotechnology and Food Sciences , 2012, DOI: 13385178
Abstract: Within the experiment, three groups were created (one control and two experimental groups). We studied the influence of following supplements: alfalfa (Medicago sativa) meal (4% - experimental group I) and origanum (Origanum vulgare), thyme (Thymus vulgaris) and cinnamon (Cinnamomum sp.) oils together (0.05% - experimental group II) in mutual rate of 3:2:1, on technological and sensorial parameters of poultry meat in nutrition of chickens of Ross 308. Broilers were fattening for 36 days. Chickens were fed by the system ad libitum by the feed mixture HYD-01 from the 1st to the 18th day of age, by the feed mixture HYD-02 from the 19th to the 31st day of age and by the feed mixture HYD-03 from the 32nd day of age to the end of fattening (36th day of age) in loose form. By application of plant oils into the feed mixture, we recorded slightly positive influence on decrease of losses of cooling after 24 and 48 h, on decrease of losses of freezing and on shear force in mammary muscle and on overall sensorial evaluation of breast and thigh muscle (P≥0.05). Conversely, slightly negative influence was recorded on baking losses and on shear force in thigh muscle (P≥0.05) in compare with control group. In application of alfalfa meal, positive influence (P≥0.05) on losses of cooling (24 and 48 h), losses of freezing, baking losses, on shear force of breast muscle and on overall sensorial evaluation of thigh muscle was found. Conversely, shear force of thigh muscle and overall sensorial evaluation of breast muscle after application of alfalfa meal showed slightly negative values (P≥0.05) in compare with control group.
An Updated Review on Chicken Eggs: Production, Consumption, Management Aspects and Nutritional Benefits to Human Health  [PDF]
Khalid Zaheer
Food and Nutrition Sciences (FNS) , 2015, DOI: 10.4236/fns.2015.613127
Abstract: Ancestors of the modern chicken were domesticated from members of the Gallus genus probably 7 to 8 thousand years ago in southeastern Asia. Subsequently, they spread globally for meat and egg production. In the chicken egg, there is a balance of numerous, high-quality nutrients, many of which are highly bioavailable. The egg confers a multitude of health benefits to consumers emphasizing its classification as a functional food. Current global per capita egg consumption estimates approach 9 kg annually but vary greatly on a regional basis. This review deals with global production, consumption, and management aspects such as hygiene, feeding, and housing. Management aspects play key roles in the composition, quality, food safety, and visual (consumer) appeal of the egg. Also the manipulation of egg nutrients and value for human health is discussed.
B. Jannat,M. R. Oveisi,N. Sadeghi,M. Hajimahmoodi
Iranian Journal of Environmental Health Science & Engineering , 2007,
Abstract: In recent years, hormones and hormone-like compounds have been frequently used in vegetable and livestock production to obtain a high yield performance in a shorter period of time, but depending on the use of anabolics in animal feed, anabolic residues that may occur in meat and meat products would present the risks to the human health. The present study was undertaken to detect and quantify the levels of trenbolone residues (a potent synthetic analog of testosterone) in the market meat in Iran. Cattle meat samples were collected from the markets in Tehran. A total of 120 samples of cattle meat were analyzed for level of trenbolone by Enzyme-Linked Immunosorbant Assay method. The average experimental values of trenbolone in cattle meat were 3.76 5.26ng/kg. This value gave no evidence for the illegal use of hormones in Tehran, but these results do not exclude the possibility of misuse of these potentially harmful chemicals in future. There is, therefore, need to routinely monitor these chemicals as a food quality and health control measure.
Role of Boron in Plant Nutrition and Human Health  [PDF]
Mahmoud M. Shaaban
American Journal of Plant Physiology , 2010,
Abstract: Boron is an essential micronutrient for plants. Because of the lake of boron isotope marker shows its physiological and biochemical behavior within the plant tissues, its role in plant cell reactions still unclear. This study reviews boron minerals and distribution in nature, its uptake by plants, its postulated functions in the plants and some of the recent hypotheses concerning the role of boron in plant nutrition. Boron deficiency and toxicity symptoms and their effects on the elemental status, growth and yield of some plants are also reviewed. Since, boron proved to be important for human body, the study reviewed also some of the physiological effects of boron on human health.
Occurrence of Listeria species in meat, chicken products and human stools in Assiut city, Egypt with PCR use for rapid identification of Listeria monocytogenes
Ashraf Mohamed Abd El-Malek,Sohaila Fathi Hassan Ali,Raafat Hassanein,Moemen, Abdelazeem
Veterinary World , 2010,
Abstract: The present research was conducted to check the presence of Listeria spp. in some meat and chicken products purchased from retail supermarkets in Assiut (Egypt). A total of 100 samples including 25 samples each of minced frozen beef, luncheon, frozen chicken legs and frozen chicken breast fillets were collected over a 7-month period between January and July 2009 and analyzed for the presence of Listeria spp. In addition, 28 stool cultures examined for Listeria spp. from hospitalized children resident in Assiut Pediatric University Hospital with diarrhea or fever. Out of the total 100 meat samples examined, Listeria spp. were detected in 8 (32%) of minced frozen beef, 8 (32%) of luncheon, 13 (52%) of frozen chicken leg and 14 (56%) of frozen chicken fillet samples analyzed, respectively. Regarding the examined 28 stool cultures from hospitalized children with underlying disease in Assiut Univ. hospital, 2 (7.14%) were found positive for Listeria spp. For identification of L. monocytogenes using polymerase chain reaction (PCR), two primers were selected to detect 217-pb fragment ofthe prfA (transcriptional activator of the virulence factor) gene for L. monocytogenes. 13 selected Listeria isolates displayed beta-haemolysis on sheep blood agar and positive CAMP test were further identified using PCR. PCR results showed that L. monocytogenes were confirmed in one of minced imported frozen meat examined, two of luncheon samples and two of frozen chicken legs with the total incidence of 5 isolates (5%) from the total 100 examined food samples. This suggests the presence of a significant public health hazard linked to the consumption of these meat and chicken products sold in Assiut city contaminated with L. monocytogenes. The public health significance of these pathogens as well as recommended sanitary measures was discussed. [Veterinary World 2010; 3(8.000): 353-359]
Karl Salobir
Poljoprivreda (Osijek) , 2000,
Abstract: Meat is a rich source of nutrients which human nutrition often lacks. It is a rich and important source of essential amino acids, vitamins, minerals and also long chain polyunsaturated fatty acids. Moderate intake of lean meat enables easier composition of balanced diet. On the other hand, excessive meat intake supersedes from the diet foodstuffs which supply dietary fibers, vitamins, and also non-vitamin antioxidant active substances and minerals. Not meat itself but imbalanced nutrition with too much fat and saturated fatty acids and deficient intake of ω-3 fatty acids, antioxidant vitamins and phytochemicals, minerals and dietary fiber present a risk for the development of cardiovascular disease and cancer. Because of its distinct and high nutritional value meat preserves its role in a rational human nutrition.
Prevalence of Listeria monocytogenes in Poultry Meat, Poultry Meat Products and Other Related Inanimates at Faisalabad  [PDF]
Mahmood M.S.,A.N. Ahmed,I. Hussain
Pakistan Journal of Nutrition , 2003,
Abstract: Present study was performed on three hundred and twenty samples of poultry meat and poultry meat products, 40 samples each from fresh poultry meat, fresh chicken boneless, frozen poultry meat, frozen chicken nuggets, frozen chicken burgers, chopping boards, mincing machines and cleaning cloths collected from different poultry meat sale centers, supermarkets and shops at Faisalabad. Listeria species could be isolated from all the examined samples at different percentages ranging from 10 to 37.5%. Listeria monocytogenes (L. monocytogenes) was differentially identified from other Listeria species by colony characteristics, `beta haemolysis`, `cold enrichment procedure`, `Anton test`, `aesculin test`, characteristic `tumbling motility`, sugar fermentation tests and serotyping. L. monocytogenes could be isolated at variable percentages ranging from 2.5 to 17.5% of the examined samples from poultry meat and poultry meat products. From the 31 isolates of L. monocytogenes isolated from examined samples, 23 strains belonged to type 1 and 8 strains belonged to type 4. Study revealed that the incidence of L. monocytogenes was much higher in frozen poultry meat products and other related inanimates as compared to fresh poultry meat samples. The public health hazards as well as suggestive measures to reduce human Listeriosis have been discussed.
Fat Replacers in Meat Products  [PDF]
Ozlem Tokusoglu,M. Kemal Unal
Pakistan Journal of Nutrition , 2003,
Abstract: There is a great interest regarding demand for foods with health enhancing properties as low-fat meat products due to the human health and nutrition correlation. Various aspects of interest relating to product design and fat reducing strategy has been reported. These aspects concerning nutritional, sensory, technological, safety, appreciation, legal and cost procedures are important to a improved new product design. Due to their different texture properties, processing conditions and different quality evaluations used in the reformulated meat derivatives, the feasibility of low-fat meat products manufacturing has been investigated. In previous review paper, various factors such as consumer acceptability, technological, emerging strategies for the modification of meat fat level, fatty acid (FA) composition, and non-meat ingredients or fat-replacers for the production were monitored for low-fat meat products and fat reduction concept.
Gordana Kralik,Jasmina Havranek-Luka?,Antun Petri?evi?,I. Juri?
Poljoprivreda (Osijek) , 2000,
Abstract: In this paper, the significance of animal food (meat and milk) in human nutrition and satisfaction of life needs with special look on health is reviewed. Meat is excelent source of proteins with high biological value.The proteins from meat are of high quality because they contain high share of essencial amino acids which are necessary for human organism. Polyunsaturated fatty acids, esspecialy those from ω3 group, became very importat to human nutritionists because they have significant role in prevention of stress induced deseases and of those induced by improper diets. New findings from western industrial countries point out the fact that longer intake of LA (ω-6) with relative “deficiency” of ω-3 is the main risk factor in occurence of cancer, coronary deseases (CHD), cerebrovascular deseases (CVD) and alergic hyperactivity; not cholesterol as was considered till now. Therefore it is important to reduce the ω-6 / ω-3 acids ratio in meat and milk using some feedstufs in diets of animals. Dairy products contribute to health throughout life. Epidemiological researches as well as studies in animals and humans indicate that dairy food and/or their components have a protective effect against cancer. The potential anticancer agents identified so far in dairy foods include conjugated linoleic acid (CLA), calcium, vitamin D, sphingomyelin, butyric acid, ether lipids, protein and lactic acid bacteria. Milk is exclusive source of nutrients for the young and it also represents a high grade source of dietary nitrogen and indispensable amino acids for adults. Consumers are increasing looking for animal products, which could prevent disease or illness.
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