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Agricultural sector accounts for about 1/3 of the Iranian GDP and 1/4 of the country workforce. More than 90% of the Iranian food requirements are produced in the country. Animal agriculture covers over 40% of the agricultural activities. More than 57% of the available animal units in the country are sheep and goats. Desertification, deforestation, water shortage, erosion, low efficiency and ou...

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introduction the common isoform of fatty acids in animal and herbal lipids are cis fatty acids, however in some sources such as milk and meat of ruminant, the trans fatty acids are more abundant as compared to the plant lipids. the trans fatty acids are very important because they increase the cardiovascular and heart attack. the heart disorders were increased by enhancing the concentration of ...

introduction shortage of feedstuff is one of the important problems of animal nutrition in iran. salinity is a global problem worldwide in particular in arid and semi-arid zones such as iran. salinity is an important factor in the growth of plants. its initial effect to plants is through its effect in the availability of water to plants. halophytes have good ability to draw water from soils of ...

introduction cultivated alfalfa (medicago sativa l.) is the main, most of the time the only, forage for ruminants in iran as well as many other parts of the world. harvesting high quality forage is critical for iranian dairy industry, because it affects the performance of animals and reduces amount of concentrates utilization in dairy diets. unfortunately the most parts of the concentrates ingr...