Effect of beak-trimming age and high fiber grower diets on layer performance

The performance of three commercial strains of White leghorn layers was compared following beak trimming (BT) at 6 or 12 wk of age when fed diets containing 4.45 and 6.30% fiber between 6 and 12 or 12 and 18 wk of age, respectively. Body weights were lower at 12 wk in the 6-wk BT pullets, but were h...

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Bibliographic Details
Published in:Poultry science 1991-05, Vol.70 (5), p.1105-1112
Main Authors: Bell, D.D. (University of California, Riverside, CA), Kuney, D.R
Format: Article
Language:English
Subjects:
AGE
ALIMENTACION DE LOS ANIMALES
ALIMENTATION DES ANIMAUX
Animals
Beak - surgery
Body Weight
CABEZA
Chickens - growth & development
Chickens - physiology
Chickens - surgery
COSTOS
COUT
DEBECQUAGE
DESPICADO
Dietary Fiber - administration & dosage
Eating
EDAD
Eggs - standards
Female
FIBRA BRUTA
FIBRE BRUTE
INGESTION DE PIENSO
MORTALIDAD
MORTALITE
Oviposition
PESO
POIDS
POLLO
POULET
PRISE ALIMENTAIRE (ANIMAUX)
PRODUCCION DE HUEVOS
PRODUCTION D'OEUFS
RENTABILIDAD
RENTABILITE
TETE
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Summary:The performance of three commercial strains of White leghorn layers was compared following beak trimming (BT) at 6 or 12 wk of age when fed diets containing 4.45 and 6.30% fiber between 6 and 12 or 12 and 18 wk of age, respectively. Body weights were lower at 12 wk in the 6-wk BT pullets, but were heavier at 18 wk when compared with the 12 wk BT pullets. Eighteen-week body weights were unaffected by feeding regimens. Six week BT resulted in higher hen-day and hen housed egg production, total egg mass, feed consumption, and total egg income. Profitability was superior for the 6-wk BT treatment (P = .072). Feeding the high fiber diets from 6 to 12 or 12 to 18 wk of age resulted in no differences in any of the adult performance traits measured compared with the control diet
ISSN:0032-5791
1525-3171
DOI:10.3382/ps.0701105