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קהילה:
אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Body weight and/or fatness as potential determinants of the onset of egg production in broiler breeder hens
Year:
1984
Source of publication :
British Poultry Science
Authors :
בורנשטיין, שמעון
;
.
לב, י'
;
.
פלבניק, יצחק
;
.
Volume :
25
Co-Authors:
Bornstein, S., Division of Poultry Science, Agricultural Research Organization, The Volcani Center, Rehovot, Israel
Plavnik, I., Division of Poultry Science, Agricultural Research Organization, The Volcani Center, Rehovot, Israel
Lev, Y., Division of Poultry Science, Agricultural Research Organization, The Volcani Center, Rehovot, Israel
Facilitators :
From page:
323
To page:
341
(
Total pages:
19
)
Abstract:
birds were weighed at first egg, and in the first two trials they were then killed to determine abdominal and skin fat, in order to establish whether there is a minimal body weight and/or body fat pool required for the start of egg production in broiler breeder hens. 2. There were negative correlations ranging from significant to negligible between body weight and age at first egg. For birds of the same strain on a conventional food restriction regimen, the average weight range at first egg in the four trials was 3.3 to 3.7 kg, which may be a strain characteristic. 3. In spite of severe food restriction, all birds were very fat at first egg. The correlations between fat concentration and age at first egg were negative. 4. In mature pullets a minimum concentration of stored, easily mobilised fat may be essential for yolk formation and ovulation. 1. In four trials during consecutive years individually-caged. © 1984, Taylor & Francis Group, LLC. All rights reserved.
Note:
Related Files :
adipose tissue
Age Factors
Animal
article
body weight
chicken
Chickens
Female
Sex Maturation
עוד תגיות
תוכן קשור
More details
DOI :
10.1080/00071668408454873
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
18846
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:24
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Scientific Publication
Body weight and/or fatness as potential determinants of the onset of egg production in broiler breeder hens
25
Bornstein, S., Division of Poultry Science, Agricultural Research Organization, The Volcani Center, Rehovot, Israel
Plavnik, I., Division of Poultry Science, Agricultural Research Organization, The Volcani Center, Rehovot, Israel
Lev, Y., Division of Poultry Science, Agricultural Research Organization, The Volcani Center, Rehovot, Israel
Body weight and/or fatness as potential determinants of the onset of egg production in broiler breeder hens
birds were weighed at first egg, and in the first two trials they were then killed to determine abdominal and skin fat, in order to establish whether there is a minimal body weight and/or body fat pool required for the start of egg production in broiler breeder hens. 2. There were negative correlations ranging from significant to negligible between body weight and age at first egg. For birds of the same strain on a conventional food restriction regimen, the average weight range at first egg in the four trials was 3.3 to 3.7 kg, which may be a strain characteristic. 3. In spite of severe food restriction, all birds were very fat at first egg. The correlations between fat concentration and age at first egg were negative. 4. In mature pullets a minimum concentration of stored, easily mobilised fat may be essential for yolk formation and ovulation. 1. In four trials during consecutive years individually-caged. © 1984, Taylor & Francis Group, LLC. All rights reserved.
Scientific Publication
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