| Autor: |
L. K. Misra, R. C. Fanguy, K. V. Vo, W. F. Krueger, C. C. Blohowiak |
| Rok vydání: |
1980 |
| Předmět: |
|
| Zdroj: |
Poultry Science. 59:1215-1220 |
| ISSN: |
0032-5791 |
| DOI: |
10.3382/ps.0591215 |
| Popis: |
Variations in hatching time and their subsequent effect on placement weight, chick mortality, and four-week body weight were evaluated. Hatching intervals for three experiments ranged from 32 hr to 60 hr with total incubation time ranging from 20.67 to 21.75 days. Early hatched chicks showed a significant reduction in placement weight which continued to be evident at four weeks of age. The delayed placement resulting from early hatch also increased mortality during the first week of brooding as did holding chicks in boxes in excess of 30 hr. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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