The green revolution fulfilled the food demand of crowded millions. From the time of green revolution to till date high yielding and fertilizer responsive varieties have evolved to increase the production per unit area. To improve the productivity only major nutrients a More
The green revolution fulfilled the food demand of crowded millions. From the time of green revolution to till date high yielding and fertilizer responsive varieties have evolved to increase the production per unit area. To improve the productivity only major nutrients are concentrated almost in all crops. Though the importance of micronutrient realized during past decades in most of the crops but it is not effectively materialized in general crop cultivation practices. The micronutrient deficiencies in soil are not only hamper crop productivity but also deteriorating the produce quality. World health organization (WHO) has estimated that over 3 billion people in the globe suffer from the micronutrient malnutrition and about 2 billion people of these have iron deficiency. Iron is one of the 16 essential elements needed for plant growth. Iron is used for the synthesis of chlorophyll and is essential for the function of chloroplasts. Zinc is involved in membrane integrity, enzyme activation, and gene expression. Rice, sorghum and corn are Zn sensitive and sorghum, sugarcane, groundnut, soyabean, beans, grapes, vegetables and citrus are highly Fe sensitive crops. To overcome these problems foliar spray is being recommended but it is not crop specific or soil specific recommendation. Keeping these problems in the view, recently development of micronutrient efficient genotypes, creating awareness of micronutrient dose, crop specific micronutrient uptake and accumulation are vital to improve productivity and to address human health problems. In this paper we discussed the importance of iron and zinc in agriculture and their role in crop plants and ways to improve the crop productivity as well as human health.
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کمبود اولیه روی در نشخوارکنندگان شایع نیست، اما وقوع آن در گزارش ها ثبت شده است. علائم آلوپسی، شوره، ناباروری، تاخیر رشد، ضعف، بی اشتهایی، خارش، پنومونی، التهاب ملتحمه، افزایش ریسک ابتلا به عفونت در 4 راس گوسفند که مشکوک به کمبود روی بودند از بهمن ماه سال 1400 لغایت خرد More
کمبود اولیه روی در نشخوارکنندگان شایع نیست، اما وقوع آن در گزارش ها ثبت شده است. علائم آلوپسی، شوره، ناباروری، تاخیر رشد، ضعف، بی اشتهایی، خارش، پنومونی، التهاب ملتحمه، افزایش ریسک ابتلا به عفونت در 4 راس گوسفند که مشکوک به کمبود روی بودند از بهمن ماه سال 1400 لغایت خرداد سال 1401 مورد مطالعه قرار گرفت. ضربان قلب، تعداد تنفس و دمای بدن ثبت گردید و آزمایش خون شامل PCV، شمارش تفریقی گلبول­های سفید و گلبول­های قرمز اندازه­گیری شد. نتایج هماتولوژی در گوسفندان مبتلا افزایش معنی داری در گلبول های سفید را نشان داد. همچنین نمونه های بافتی حاصل از بایوپپسی پوست گوسفندان مبتلا، به روش هماتوکسیلین و ائوزین تهیه گردید و از نظر آسیب شناسی، پاراکراتوزیس به همراه شاخی شدن اپیتلیوم سنگفرشی مشاهده گردید که تایید کننده کمبود روی می­باشد. استراتژی درمانی شامل قرص خوراکی سولفات روی با دوز 250 میلی گرم در روز به مدت 4 هفته و استفاده از آجرهای معدنی برای ادامه روند درمان بود. متعاقب 10 هفته، علائم بهبود ظاهر شد.
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Zinc ion is the second essential element in living organisms and is necessary for lots of enzymes activity e.g. alkaline phosphatase and lactate dehydrogenase. This ion also takes part in biological processes as human growth, immune response, and nerve function. Zinc de More
Zinc ion is the second essential element in living organisms and is necessary for lots of enzymes activity e.g. alkaline phosphatase and lactate dehydrogenase. This ion also takes part in biological processes as human growth, immune response, and nerve function. Zinc deficiency causes significant decrease in serum alkaline phosphatase or increase in aspartate aminotransferase and alanine aminotransferase activity. Increase in these two later enzymes, in turn, is an indicator of tissue damage even though there are controversies among researchers. Accordingly, we decided to study the effect of 0.6 gm/L of zinc sulfate in drinking water in a period of 3 months treatment on serum activities of hepatic enzymes in adult rats. Twenty female rats were selected in two equal groups as control and treated groups. For a period of three months, zinc sulfate dissolved in tap water was used to drink by the treated group while the control group drank tap water. Both groups had full access to pellet food during this study. Serum activities of aspartate aminotransferase, alanine aminotransferase, alkaline phosphates and lactate dehydrogenase were measured finally. Zinc sulfate significantly decreased alanine aminotransferase while it showed no effects on the three other enzymes. Dietary zinc sulfate not only exerts no damage to liver but also as food supplement seems to have protective effect on this organ.
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