منابع مشابه
Froth flotation of phosphate rock
The development of froth flotation is traced from its earliest-known use through the discoveries leading to the present knowledge of the science. The factors influencing the flotation of non-sulfide and non-metallic minerals are discussed, and the machines used in commercial flotation operations are described. Experimental work on the flotation beneficiation of phosphate rock is presented as an...
متن کاملShort-term effects of lower oil dried distillers grains with solubles in laying hen rations.
Extraction of oil from dried distillers grains has become a common practice among US ethanol producers. The valuable oil has been diverted to markets other than poultry feed, leaving new dried distillers grains with solubles (DDGS) products higher in fiber and purportedly lower in ME. This study compared 3 DDGS products with 10.3, 7.3, or 5.2% ether extract, respectively, with a corn-soy contro...
متن کاملDried Distillers Grain with Solubles in Laying Hen and Pullet Rations
A study was conducted to test the inclusion rates of corn dried distillers grains with solubles (DDGS) in laying hen diets on egg production (EP) parameters for a full production cycle. Two hundred eighty-eight Bovan Single Comb White Leghorn laying hens were fed diets containing 0, 5, 10, 15, 20, or 25% DDGS from 24 to 46 wk and 47 to 76 wk of age for Phase I and Phase II, respectively. The di...
متن کاملIntake of minerals, trace elements and vitamins in bone and raw food rations in adult dogs.
The aim of the present study was to evaluate the vitamin and mineral content of bone and raw food rations fed to adult dogs in Germany. Pet owners completed a standardised feeding questionnaire. The composition of 95 rations was calculated from mean data for foodstuffs using nutrition balancing software. Typical ration ingredients were meats, fish, offal, dairy products, eggs, oil, nuts, cod li...
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ژورنال
عنوان ژورنال: Poultry Science
سال: 1949
ISSN: 0032-5791
DOI: 10.3382/ps.0280019