منابع مشابه
Dung Beetles and Microbial Decomposition of Dung
Dung beetles belong to the superfamily Scarabaeoidea, and are mostly within the subfamilies of Scarabaeinae and Aphodiinae. They are given their name because they feed partially or exclusively on feces. Each species of dung beetles can be classified as one of several types: rollers, tunnelers and dwellers. Rollers roll the dung into round balls, which are then used for brooding chambers or as a...
متن کاملEffect of dung burial by the dung beetle Bubas bison on numbers and viability of Cryptosporidium oocysts in cattle dung.
Cryptosporidium oocysts were inoculated into fresh dung (∼1.2×10(4) oocysts per gram wet weight) and fed to dung beetles to assess the effect of dung burial by the dung beetle Bubas bison on the distribution of the oocysts in small cores of soil in the laboratory. The experiment consisted of five replicates of each of two treatments; controls (dung but no dung beetles) and the experimental trea...
متن کاملThe Anxiety Makers
'The Anxiety Makers' is a clear exposition of what happens when 'expertise in practical and verifiable matters is confused with expertise in conduct and morality'. The examples chosen are intercourse, masturbation, constipation, venereal disease and birth control. Comfort shows how, in the nineteenth century, many medical experts used their professional standing to propagate anxiety-loaded fant...
متن کاملTo the Better Physical Pellet Quality through the Pellet Press Settings
The primary objective of pelleting is to produce a palatable, high quality product with minimum production expense. Manipulation of the feed pellets during the storage, transporting, and transfer to feeding lots seriously reduces the number of feed pellets that finally reach the feed pans. It seems that the best solution for this problem is to increase the Pellet Durability Index (PDI) of the f...
متن کاملFactors Influencing Pellet Quality
In terms of pellet mill operations, the conditioning process has greater influence on pellet quality than does die specification. A great deal of attention must be paid to steam quantity and control, moisture content, retention time and mixing action within the conditioner. In general, most feed manufacturers have not optimized the conditioning process but try to solve pellet quality issues usi...
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ژورنال
عنوان ژورنال: The Canadian Entomologist
سال: 1884
ISSN: 0008-347X,1918-3240
DOI: 10.4039/ent1618-1