Physiological evaluation of solvent-treated cottonseed meals in rations for laying hens
| Autor: | J. Proctor, R. S. Levi, H. G. Reilich, H. J. O’Neill, Walter A Pons |
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| Rok vydání: | 1968 |
| Předmět: |
0301 basic medicine
food.ingredient Cottonseed Oil Animal feed General Chemical Engineering Soybean meal Poultry Cottonseed 03 medical and health sciences chemistry.chemical_compound 0404 agricultural biotechnology food Yolk Acetone Animals Food science chemistry.chemical_classification Meal 030109 nutrition & dietetics digestive oral and skin physiology Organic Chemistry Fatty Acids Fatty acid 04 agricultural and veterinary sciences 040401 food science Animal Feed chemistry Solvents Animal Nutritional Physiological Phenomena Food quality |
| Zdroj: | Journal of the American Oil Chemists' Society. 45(5) |
| ISSN: | 0003-021X |
| Popis: | Two commercial cottonseed meals, a direct solvent-extracted meal and a screw-pressed meal, were subjected to successive solvent-extraction procedures by using an acetone/hexane/water azeotrope to reduce their cyclopropenoid fatty acid content. The two original commercial meals, as well as a double- and triple-extracted portion, were then incorporated at 20 wt % levels in the rations of laying hens. A negative control containing 25% soybean meal and a positive con-trol containing 2 % refined cottonseed oil of known CPA content were also employed. During a four-week feeding period the eggs were collected dur-ing the third and fourth week and stored at 35F for periods of three and six months. Over-all egg quality and the fatty acid distribution of the extracted yolk lipids were determined after the three- and six-month storage period. |
| Databáze: | OpenAIRE |
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