the present study evaluated the effects of diets enriched in saturated and polyunsaturated fatty acids (n-3and n-6) on reproductive indices, metabolic hormones and metabolites prior to ram introduction in oestrussynchronized ewes. zel ewes (n=188) were assigned to 4 groups. ewes in the control group (con) did notreceive fat. ewes in the 3 other groups received 3% oil/dm/day of palmolein oil (pl...

chicken has been used as a suitable model for lipid metabolism studies, because dietary modifications especially dietary fat type can change chicken body composition. fats act as a condense source of energy and certain fatty acids such as polyunsaturated fatty acids (pufas) are required for both animal and human health. the n-3 pufas, especially, eicosapentaenoic acid (epa) and docosahexaenoic ...

the objectives of this study were to determine the effects of feeding rapeseed (27%, dm basis) and sunflower biodiesel by-products as protein supplements on fatty acid composition (fa), profile (ratios and indices),enzyme activitiesfrom thecarcassin lambs fed cereal-based diets. simultaneously, itwas examined the relationship between ingested fa and carcass fa. samples were obtaine dfrommal efa...

there is a great interest in developing rapid analytical methods and provide appropriate parametersfor quantitative analysis of compounds derived from refractory pollutants. such methods are important forroutine quality control analysis of an effluent before being discharged into the environment. therefore, a rapid methodology for identification and quantification of some aliphatic acids is pro...

background: fatty acids are the main compounds in edible oils. oil thermal stability depends on the composition of fatty acids. so, this study was conducted to investigate the effect of fatty acid composition on the oxidative stability of extra virgin olive oil during heating process.  methods: totally, eight virgin olive oil samples, including five imported oils from market place of mahabad an...

Background: Sumac (Rhus coriaria L.) belongs to Anacardiaceae family. The dried and powdered fruits are used as a food flavoring and medicinal plant. Objective: In this study, variability of fatty acid composition in some wild sumac fruits were investigated. Method: The samples were collected from their natural origins in central parts of Iran; Isfahan and Markazi province in the September to...

In order to study the effects of various levels of protein in diet based on total and digestible amino acids on performance and carcass traits of broilers, an experiment was conducted as a completely randomized design with 288 broiler chicks from Cobb 500 strain in 6 treatments, each treatment consist of 3 replicates with 16 chicks per replicate. Treatments were the diets as follow: 1) diet for...

the aim of this work was to analyze the fatty acid profile in persian gulf shrimp, metapenaeus affinis that is one of the edible and well-known shrimps and has suitable amount of fatty acids specific polyunsaturated fatty acids (pufa). it has been reported that, a high dietary consumption of marine n-3 fatty acids may prevent the development of atherosclerosis and thrombosis. the fatty acids pr...

Background & Aim:Armenian cucumber (Cucumis melo var. flexuosus) is one of the varieties of Cucurbitaceae family that is freshly consumed in Iran, while due to the presence of useful fatty acids and minerals, it can play a special role in the health diet. The aim of this study was to evaluate the quantitative and qualitative of fatty acids in the seeds of Armenian cucu...

Amino acids (AA) are important in poultry nutrition not only for protein deposition, but also for other metabolic functions; such as improving immune and gut functions. Although, some table values are available on amino acids requirement, AA requirements may vary due to changes in dietary composition and breeding selection. Thus amino acids requirements have remained an ongoing research topic. ...