نتایج جستجو برای: number of dairy cattle animal unit equivalent

تعداد نتایج: 21223976  

2016
Donna M. Amaral-Phillips

Forages are the foundation for building diets for beef and dairy cattle, horses, sheep and goats. The quality of these forages directly impacts forage intake, animal performance, and, ultimately, the profitability to their owners. As the quality of forages decline, consumption of that forage decreases and the amount of grain or byproducts which must be fed increases. The cost for a unit of perf...

Journal: :Journal of animal science 2013
R Khiaosa-ard Q Zebeli

The present study aimed at investigating the effects of essential oils and their bioactive compounds (EOBC) on rumen fermentation in vivo as well as animal performance and feed efficiency in different ruminant species, using a meta-analysis approach. Ruminant species were classified into 3 classes consisting of beef cattle, dairy cattle, and small ruminants. Two datasets (i.e., rumen fermentati...

Abdolhamid Meimandi Parizi Mina Tadjalli Mostafa Nurbakhsh Seifollah Dehghani Nazhvani

Objective: Laminitis is one of the main causes of lameness in dairy cattle. In this situation the corium blood circulation is disrupted and the production of healthy horny hoof wall is reduced. The purpose of this study was to evaluate the arteriographic pattern of the digital arterial branches in the laminitic digits and to compare them with the normal digits. Design: Original study. Animals...

Journal: :Journal of environmental management 2012
J W De Vries C M Groenestein I J M De Boer

Liquid animal manure and its management contributes to environmental problems such as, global warming, acidification, and eutrophication. To address these environmental issues and their related costs manure processing technologies were developed. The objective here was to assess the environmental consequences of a new manure processing technology that separates manure into a solid and liquid fr...

Background and Aims: Sistan is a major pole in dairy production and genetic resource for the unique sistanian breed in the southeast of Iran. This region has a wide border with Afghanistan and cattle imports are done through this border.  The   main aim of this study was to compare the seroprevalence of Bovine Viral Diarrhea Virus (BVDV) infection rate using direct Enzyme-linked ...

Journal: :علوم دامی ایران 0
حیدر قلی زاده استادیار اقتصاد کشاورزی، دانشگاه زنجان اسماعیل اخبار دانش آموختۀ کارشناسی ارشد توسعۀ روستایی، دانشگاه زنجان علی شمس استادیار ترویج و آموزش کشاورزی، دانشگاه زنجان

in iran, more than 96.4 percent of dairy farms (including more than 68.7 percent of cattle and calf) have a less than 20 heads of animals, and they produce more than two-thirds of milk and most of animal protein. also, large shares of water, land and labor force resources are used by this production section. less scientific studies have been focused on this production system despite it's m...

2013
Lenny Hogerwerf Aurélie Courcoul Don Klinkenberg François Beaudeau Elisabeta Vergu Mirjam Nielen

Between 2007 and 2009, the largest human Q fever epidemic ever described occurred in the Netherlands. The source was traced back to dairy goat farms, where abortion storms had been observed since 2005. Since one putative cause of these abortion storms is the intensive husbandry systems in which the goats are kept, the objective of this study was to assess whether these could be explained by her...

2015
N. R. Kendall H. R. Holmes-Pavord P. A. Bone E. L. Ander S. D. Young

With the release of the Department for the Environment, Food and Rural Affairs/Advisory Committee on Animal Feed Guidance Note for Supplementing Copper to Bovines it was noted that the current copper status of the national herd was not known. Liver samples were recovered from 510 cull cattle at a single abattoir across a period of three days. The samples were wet-ashed and liver copper concentr...

Journal: :international journal of agricultural science, research and technology in extension and education systems 2011
m. a. sabaghi h. badavi a. r. ommani

one of the most important measures, in order to increase animal products and reduce imports, is the industrialization of animal husbandry units, specially the dairy cattle. the condition of milk production would be improved by this industrialization, which is in the direction of increasing the efficiency of milk production units. the purpose of this study is calculate , the efficiency of the tr...

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