| Autor: |
E. G. Ijagbuji, B. K. Ogunmodede |
| Jazyk: |
angličtina |
| Rok vydání: |
2015 |
| Předmět: |
|
| Zdroj: |
Nigerian Journal of Animal Production; Vol 4, No 2 (1977); 18-23 |
| ISSN: |
0331-2062 |
| Popis: |
At about 16 mg, zinc per 100 gm of diet feed consumed by laying hens increased until a level of 2.0% dietary calcium. Increasing the dietary calcium to 2.0% also stimulated more egg production. When less than 2.0% dietary calcium was fed more feed was required to produce a dozen egg and the eggs were of small sizes. The egg shell strength and the bone calcium were improved when at least 2.0% dietary calcium was given to the laying hen. These results were correlated with tissue accumulation of zinc thus establishing that for profitable egg production in the tropics 2.0% dietary calcium is required when 16 mg zinc per 100 grains of feed is given |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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