| Autor: |
Roy E. Roberts, J. T. Baldini, Charles M. Kirkpatrick |
| Rok vydání: |
1953 |
| Předmět: |
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| Zdroj: |
Poultry Science. 32:945-949 |
| ISSN: |
0032-5791 |
| DOI: |
10.3382/ps.0320945 |
| Popis: |
NORRIS (1935) reported that the bobwhite quail needed a 27 percent protein ration for the most rapid growth to eight weeks of age. Stadelman et al. (1945) found that the best results were obtained with a mixture running slightly over 28 percent crude protein. Favorable results were also obtained with 24 and 25 percent crude protein mixtures. Nestler et al. (1942) studied protein levels varying from 22 to 32 percent and reported that the 28 percent level gave the best general results. The mortality was high, ranging from 40 to 56 percent for the first 10 weeks. In later experiments by Nestler et al. (1944) the mortality to ten weeks was reduced to approximately 20 percent. Baldini et al. (1950) found that optimum growth was obtained on a 28 percent protein corn-soybean oil meal ration supplemented with minerals, vitamins, and methionine and reported that mortality ranged from zero to 9 … |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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