Major Advances in Teaching Dairy Production
نویسندگان
چکیده
منابع مشابه
Major advances in extension education programs in dairy production.
The dairy industry has seen structural changes in the last 25 yr that have an impact on extension programming. The number of cows in the United States has decreased by 17%, whereas the number of dairy farms has decreased by 74%. The average milk production per cow has increased from 5,394 to 8,599 kg/lactation. Even though there are fewer farms, dairy farm managers are asking for more specific ...
متن کاملMajor advances associated with environmental effects on dairy cattle.
It has long been known that season of the year has major impacts on dairy animal performance measures including growth, reproduction, and lactation. Additionally, as average production per cow has doubled, the metabolic heat output per animal has increased substantially rendering animals more susceptible to heat stress. This, in turn, has altered cooling and housing requirements for cattle. Sub...
متن کاملMajor advances in testing of dairy products: milk component and dairy product attribute testing.
Milk component analysis is relatively unusual in the field of quantitative analytical chemistry because an analytical test result determines the allocation of very large amounts of money between buyers and sellers of milk. Therefore, there is high incentive to develop and refine these methods to achieve a level of analytical performance rarely demanded of most methods or laboratory staff workin...
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the conventional tunneling procedures for example drilling, charging, blasting, loading and supporting, are highly developed. new tunneling machines have recently come into operation and others are under construction or development. impactors are used in large numbers in the coal mining industry. face-heading machines are successfully used in new tunneling procedures in both soft and medium-har...
متن کاملRation Balancing : New Advances in Dairy Research
As advances in dairy cattle nutrition research are now becoming available to the dairy industry, it is sometimes difficult to understand how these differ ent advances and improvements in our understanding of dairy nutrition with the different approaches taken by different companies and their associated “jargon”. This brochure is meant as a general overview of the different ration balancing syst...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 2006
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(06)72184-1