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קהילה:
אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Response of broiler chickens and turkey poults to food restriction of varied severity during early life
Year:
1991
Source of publication :
British Poultry Science
Authors :
הורויץ, שמואל (בעלי חיים)
;
.
פלבניק, יצחק
;
.
Volume :
32
Co-Authors:
Plavnik, I., Institute of Animal Science, Agricultural Research Organisation, The Volcani Center, P.O. Box 6, Bet Dagan 50250, Israel
Hurwitz, S., Institute of Animal Science, Agricultural Research Organisation, The Volcani Center, P.O. Box 6, Bet Dagan 50250, Israel
Facilitators :
From page:
343
To page:
352
(
Total pages:
10
)
Abstract:
1. Cobb male (7-d-old) and female (6-d-old) chicks, and BUT male and female turkeys (7-d-old), were subjected to food restriction of varying severity for 7, 5, 10 and 7 d, respectively. 2. The energy allowance was calculated to support from 0% to 75% of the growth rate typical of species, strain and sex. 3. In male and female broilers kept up to 56 and 50 d, respectively, a high rate of weight gain after the restriction period (refeeding period) overcame the growth retardation attributable to restriction, except in the birds which had been subjected to the most severe regimen. In the mildest regimens, body weights reached slightly higher values than those of the ad libitum-fed controls. Overall food conversion efficiency was significantly improved in males and abdominal fat content was reduced in both sexes, regardless of the severity of restriction. 4. Body weights of male and female turkeys, aged 147 and 112 d respectively, of the groups subjected to the milder (75% growth) restriction, significantly exceeded those of the controls. Food conversion efficiency and meat yield were improved by early-age food restriction but carcase fat was not affected. 5. The results for both species of either sex suggest that a mild food restriction applied at an age of about 1 week and allowing for 60 to 75% of normal growth, may offer an economic advanage over a continuous ad libitum feeding regimen. © 1991, Taylor & Francis Group, LLC. All rights reserved.
Note:
Related Files :
Animal
animal food
chicken
Chickens
eating
Female
food deprivation
Growth, Development and Aging
Male
turkey (bird)
עוד תגיות
תוכן קשור
More details
DOI :
10.1080/00071669108417359
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
26626
Last updated date:
21/08/2022 07:45
Creation date:
17/04/2018 00:24
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Scientific Publication
Response of broiler chickens and turkey poults to food restriction of varied severity during early life
32
Plavnik, I., Institute of Animal Science, Agricultural Research Organisation, The Volcani Center, P.O. Box 6, Bet Dagan 50250, Israel
Hurwitz, S., Institute of Animal Science, Agricultural Research Organisation, The Volcani Center, P.O. Box 6, Bet Dagan 50250, Israel
Response of broiler chickens and turkey poults to food restriction of varied severity during early life
1. Cobb male (7-d-old) and female (6-d-old) chicks, and BUT male and female turkeys (7-d-old), were subjected to food restriction of varying severity for 7, 5, 10 and 7 d, respectively. 2. The energy allowance was calculated to support from 0% to 75% of the growth rate typical of species, strain and sex. 3. In male and female broilers kept up to 56 and 50 d, respectively, a high rate of weight gain after the restriction period (refeeding period) overcame the growth retardation attributable to restriction, except in the birds which had been subjected to the most severe regimen. In the mildest regimens, body weights reached slightly higher values than those of the ad libitum-fed controls. Overall food conversion efficiency was significantly improved in males and abdominal fat content was reduced in both sexes, regardless of the severity of restriction. 4. Body weights of male and female turkeys, aged 147 and 112 d respectively, of the groups subjected to the milder (75% growth) restriction, significantly exceeded those of the controls. Food conversion efficiency and meat yield were improved by early-age food restriction but carcase fat was not affected. 5. The results for both species of either sex suggest that a mild food restriction applied at an age of about 1 week and allowing for 60 to 75% of normal growth, may offer an economic advanage over a continuous ad libitum feeding regimen. © 1991, Taylor & Francis Group, LLC. All rights reserved.
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