| Autor: |
Noble DO; Department of Poultry Science, Ohio Agricultural Research and Development Center, Ohio State University, Wooster 44691., Muir FV, Krueger KK, Nestor KE |
| Jazyk: |
angličtina |
| Zdroj: |
Poultry science [Poult Sci] 1994 Dec; Vol. 73 (12), pp. 1850-7. |
| DOI: |
10.3382/ps.0731850 |
| Abstrakt: |
Two commercial strains (Strains A and B) of tom turkeys were either beak trimmed or left with intact beaks. These strains responded similarly to beak trimming for performance traits, with the exception of a higher incidence of beak-inflicted injuries among Strain B toms with intact beaks. Turkeys with trimmed beaks had higher body weights at 8, 12, and 16 wk. Feed efficiency was better in beak-trimmed birds from 4 to 8 wk, 12 to 16 wk, and 0 to 18 wk. Beak treatment did not effect mortality. Leg abnormalities caused the majority of culling or resulted in death or culling from beak-inflicted injuries. Beak trimming seems to be a beneficial practice in tom turkeys because feed efficiency of beak-trimmed toms was improved and injuries were reduced in a strain that tended to exhibit a high degree of beak-inflicted injuries. The results suggest that the need for beak trimming tom turkeys may be reduced when feed efficiency of toms with intact beaks is improved. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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