Invited review: Role of physically effective fiber and estimation of dietary fiber adequacy in high-producing dairy cattle
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چکیده
منابع مشابه
Mechanical Properties of Irregular Fiber (Invited Review Paper)
Irregularities are inherent to virtually all fibers, including the conventional textile fibers, the high-performance brittle fibers and newly developed nano-fibers. These irregularities can fall into two main categories: dimensional or geometrical irregularity (external) and structural irregularity (internal). For natural fibers such as wool, diameter variation along fiber length is atypical ex...
متن کاملEffective Fiber for Dairy Cows
Unlike other nutrients, such as protein and calcium, where requirements are provided in grams per cow per day for specific body weight and milk production levels, fiber “requirements” are merely minimum guidelines (NRC, 2001) aimed at maintaining normal ruminal pH, fiber digestion and milk fat test and preventing sub-acute rumen acidosis (SARA), laminitis and displaced abomasums (LDA). NRC (200...
متن کاملDefining Effective Fiber and Fiber Recommendations for Dairy Cows
Introduction Current NRC recommendations for dairy cattle provide only minimum recommendations for chemically measured fiber. However, physical characteristics of fiber can influence animal health, ruminal fermentation, animal metabolism, and milk fat production independently of the amount of chemically measured fiber. Using ground fibrous by-product feeds or finely chopped forages in rations t...
متن کاملrole of cultural iran in promotion of multilaieralism in central asia and caucasus
cultural iran is a scope that is more extended than the political territories of iran as a political unit. this concept means that cultural geography(mehdi moghanlo-1383-1) of iran is greater than its political geography which, according to history, has a long history extending west-east from kandahar to the euphrates and north-south from the persian gulf to the caucasus including transoxiana a...
15 صفحه اولInvited Commentary Invited Commentary: Dietary Fiber, Estradiol, and Cholesterol
The limitations of examining mediating factors by adjusting for them in standard regression models have been well-documented in the literature. Although alternative analytic models have been suggested, they are rarely used. In the accompanying article, Mumford et al. (Am J Epidemiol. 2010;173(2):145–156) use marginal structural linear mixed models to determine the association between dietary fi...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 2012
ISSN: 0022-0302
DOI: 10.3168/jds.2011-4421