دانلود فایل تحقیق رشته دامداری زبان انگلیسی 19صفحه/Dry Cow and Transition Cow Nutrition
Fresh cows need to calve in with few metabolic problems. Fresh cows also need to eat aggressively as soon as possible and have few sub-clinical metabolic problems. Goals of the far-off dry period include maintaining body condition, maintaining protein and muscle reserves, rejuvenation of the rumen wall, and provision of needed minerals and vitamins. During the pre-fresh period, nutrient requirements increase while dry matter intake decreases. Ration nutrient concentration must increase. The mineral balance of the ration is critical. The rumen microbes and rumen papillae also need to be adjusted to higher levels of concentrates. Ration palatability is important at this time. A fresh cow’s energy needs usually exceed energy supply. Any steps taken to reduce the degree of sub-clinical ketosis will result in increased dry matter intake, increased milk production, and better reproduction. Special fresh cow groups help producers to target time, high quality forages, and feed additives to those cows who will respond the most. Fresh-cow feed additives include calcium propionate, choline, niacin, and yeast culture. Updated with information from the 2001 NRC
مقاله به زبان انگلیسی در خصوص انواع شبکه های کامپیوتری
دانلود مقاله به زبان انگلیسی در خصوص انواع شبکه های کامپیوتری با فرمت ورد و قابل ویرایش در 35 صفحه
درس زبان انگلیسی عمومی کامپیوتر پودمان کاربری کامپیوتر
Computer Network Types Generally, networks are distinguished based on their geographical span. A network can be as small as distance between your mobile phone and its Bluetooth headphone and as large as the internet itself, covering the whole geographical world, Personal Area Network A Personal Area Network (PAN) is smallest network which is very personal to a user. This may include Bluetooth enabled devices or infra-red enabled devices. PAN has connectivity range up to 10 meters. PAN may include wireless computer keyboard and mouse, Bluetooth enabled headphones, wireless printers and TV remotes. For example, Piconet is Bluetooth-enabled Personal Area Network which may contain up to 8 devices connected together in a master-slave fashion. Local Area Network A computer network spanned inside a building and operated under single administrative system is generally termed as Local Area Network (LAN). Usually,LAN covers an organization’ offices, schools, colleges or universities. Number of systems connected in LAN may vary from as least as two to as much as 16 million. LAN provides a useful way of sharing the resources between end users.The resources such as printers, file servers, scanners, and internet are easily sharable among computers. LANs are composed of inexpensive networking and routing equipment. It may contains local servers serving file storage and other locally shared applications. It mostly operates on private IP addresses and does not involve heavy routing. LAN works under its own local domain and controlled centrally. LAN uses either Ethernet or Token-ring technology. Ethernet is most widely employed LAN technology and uses Star topology, while Token-ring is rarely seen.
کتاب آموزش کامل گرامر زبان انگلیسی
مسلما نمی توان اهمیت دستور زبان را در یادگیری هر زبانی نادیده گرفت . شاید یادگیری مکالمه زبان انگلیسی روشی مهم و کارآمد در یادگیری هر زبانی باشد ولی در واقع وقتی شما اولین جمله را ، به زبان تازه آموخته ، به زبان می آورید ، آن چیزی که مهارت شما در زبان را نشان می دهد ، رعایت قواعد دستوری و گرامر است که متاسفانه بسیاری از زبان آموزان از آن غفلت می کنند . در این مجموعه هر آن چیزی که در گرامر زبان انگلیسی وجود دارد به صورت درس به درس آموزش داده می شود .
80 صفحه
