Calcium and phosphorus requirements of breeding bobwhite quail
Journal of Nutrition
By: J.B. DeWitt, R. B. Nestler, and J.V. Derby Jr.
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Abstract
In the course of studies designed to determine the calcium and phosphorus requirements of breeding bobwhite quail, it was found that best results were obtained when the Ca/P ratio in the diet was approximately 2.3:1. Variations in the Ca/P ratio produced significant differences in results when the level of phosphorus in the diet was 0.75%, but the differences were less marked when the level of phosphorus was increased to 1.00%.
Although diets containing 0.75% phosphorus and 1.8% calcium appeared adequate for reproduction, as judged by the criteria of the maintenance of satisfactory condition in the breeders, egg production, fertility, hatchability and survival of offspring during the first 5 days after hatching, it was found that the winter mortality of the offspring of birds fed such a diet was much greater than that occurring in the offspring of birds fed on diets containing 1.00 or 1.25% phosphorus. It is concluded that breeding bobwhite quail require diets furnishing approximately 1.00% phosphorus and 2.3% calcium.
Suggested Citation
DeWitt, J., Nestler, R.B., Derby, J., 1949, Calcium and phosphorus requirements of breeding bobwhite quail: Journal of Nutrition, v. 39, no. 4, p. 567-577, https://doi.org/10.1093/jn/39.4.567.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Calcium and phosphorus requirements of breeding bobwhite quail |
| Series title | Journal of Nutrition |
| DOI | 10.1093/jn/39.4.567 |
| Volume | 39 |
| Issue | 4 |
| Year Published | 1949 |
| Language | English |
| Publisher | Elsevier |
| Contributing office(s) | Patuxent Wildlife Research Center |
| Description | 11 p. |
| First page | 567 |
| Last page | 577 |