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Removal of residual yolk at hatch influences food choice and feeding activity in lines of chickens selected for high or low juvenile body weight.
Year:
1994
Authors :
Nitsan, Zafrira
;
.
Volume :
34
Co-Authors:
Turro-Vincent, I., INRA, Station de Recherches Avicoles, Centre de Tours-Nouzilly, France.
Nitsan, Z., INRA, Station de Recherches Avicoles, Centre de Tours-Nouzilly, France.
Picard, M., INRA, Station de Recherches Avicoles, Centre de Tours-Nouzilly, France.
Dunnington, E.A., INRA, Station de Recherches Avicoles, Centre de Tours-Nouzilly, France.
Siegel, P.B., INRA, Station de Recherches Avicoles, Centre de Tours-Nouzilly, France.
Facilitators :
From page:
449
To page:
460
(
Total pages:
12
)
Abstract:
The effect of residual yolk removal at hatch on growth and feeding behavior was assessed in lines of chickens divergently selected for low (LW) or high (HW) 56-day body weight. At hatch chicks were assigned to 1 treatment: removal of the residual yolk (R) or no surgery (I). Twenty-four chicks per line (12 I and 12 R) were assigned to an all-mash regimen (M) and 48 per line (24 I and 24 R) to a choice (C) between mash and dietary residual yolk. HW were heavier than LW chicks regardless of treatment. On day 5 and thereafter, chicks given a choice were heavier than those eating mash. HW chicks ate more than LW ones. The percentage of yolk eaten increased during the 2-3 d after hatch, remained constant for 2 d, then decreased. Results are discussed in term of yolk need and development of the gastrointestinal tract in the divergent lines.
Note:
Related Files :
Animal
animal behavior
animal food
caloric intake
Chickens
eating
Food Preferences
Growth, Development and Aging
organ weight
Show More
Related Content
More details
DOI :
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
29845
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:49
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Scientific Publication
Removal of residual yolk at hatch influences food choice and feeding activity in lines of chickens selected for high or low juvenile body weight.
34
Turro-Vincent, I., INRA, Station de Recherches Avicoles, Centre de Tours-Nouzilly, France.
Nitsan, Z., INRA, Station de Recherches Avicoles, Centre de Tours-Nouzilly, France.
Picard, M., INRA, Station de Recherches Avicoles, Centre de Tours-Nouzilly, France.
Dunnington, E.A., INRA, Station de Recherches Avicoles, Centre de Tours-Nouzilly, France.
Siegel, P.B., INRA, Station de Recherches Avicoles, Centre de Tours-Nouzilly, France.
Removal of residual yolk at hatch influences food choice and feeding activity in lines of chickens selected for high or low juvenile body weight.
The effect of residual yolk removal at hatch on growth and feeding behavior was assessed in lines of chickens divergently selected for low (LW) or high (HW) 56-day body weight. At hatch chicks were assigned to 1 treatment: removal of the residual yolk (R) or no surgery (I). Twenty-four chicks per line (12 I and 12 R) were assigned to an all-mash regimen (M) and 48 per line (24 I and 24 R) to a choice (C) between mash and dietary residual yolk. HW were heavier than LW chicks regardless of treatment. On day 5 and thereafter, chicks given a choice were heavier than those eating mash. HW chicks ate more than LW ones. The percentage of yolk eaten increased during the 2-3 d after hatch, remained constant for 2 d, then decreased. Results are discussed in term of yolk need and development of the gastrointestinal tract in the divergent lines.
Scientific Publication
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