The pattern of protein and energy retention and the chemical composition of the body in white leghorn pullets
| Autor: | Margareta Olteanu, R. Burlacu, Monica Pîrvu, A. Cavache, Gh. Burlacu |
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| Rok vydání: | 1996 |
| Předmět: |
animal structures
Animal feed Soybean meal Body water Biology Weight Gain Models Biological Eating Fish meal Body Water medicine Animals Food science Hatching Proteins food and beverages Feathers Lipid Metabolism Animal Feed Body Composition Digestion Female Animal Science and Zoology Composition (visual arts) Dietary Proteins medicine.symptom Energy Metabolism Chickens Weight gain |
| Zdroj: | Archiv für Tierernaehrung. 49:263-277 |
| ISSN: | 0003-942X |
| DOI: | 10.1080/17450399609381889 |
| Popis: | The change of body composition, energy content and energy and protein balance was studied in White Leghorn pullets from hatching to 140 days of age. The animals received corn, soybean meal and fish meal based diets ensuring maximal growth. Correlations were established between ingested feed and body weight gain both from the point of view of quantity and quality, determining the content of protein, fat, ash, water and energy in the total body and in feathers, separately. On the basis of digestibility and comparative slaughtering the energy and protein requirements for maintenance and for protein and fat retention were calculated. The obtained results can be utilised to develop a mathematical model for energy and protein retention in growing White Leghorn pullets. |
| Databáze: | OpenAIRE |
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