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פותח על ידי קלירמאש פתרונות בע"מ -
Effect of age at molting on postmolting performance
Year:
2001
Source of publication :
Poultry Science
Authors :
בר, אריה
;
.
וקס, אליהו
;
.
רזפקובסקי, ו'
;
.
Volume :
80
Co-Authors:
Facilitators :
From page:
874
To page:
878
(
Total pages:
5
)
Abstract:
Molt was induced at the 431, 501, or 571 d, in Lohmann (L) and Hy-Line® W-77 (H) hens, by 8 or 14 d, respectively, of feed withdrawal followed by a rest period of 16 d. Induced molt resulted in increases in egg production, numbers of intact eggs, egg mass per housed or surviving hen, and shell quality and in decreases in egg breakage (not significant), mortality, and culling. Egg weight was only slightly affected by molt, and the EW of hens induced to molt at 431 or 501 d of age were slightly lower than those of the unmolted hens or of those induced to molt at 571 d. Both strains reacted similarly to molt, although the L hens responded better, and expressed their responses more intensively when induced to molt earlier (431 d). This finding suggests that although different breeds have some effects of molt in common, molt protocols should be finely tuned for each breed. Total intact egg production and egg mass of the molted hens became higher than those of the unmolted hens at 650 to 728 d, which suggests that no benefit would be achieved by rearing molted hens for less than 700 to 730 d.
Note:
Related Files :
aging
Animal
Animals
article
chicken
Chickens
egg
egg production
Egg Shell
Female
food deprivation
Histology
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
28294
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:38
Scientific Publication
Effect of age at molting on postmolting performance
80
Effect of age at molting on postmolting performance
Molt was induced at the 431, 501, or 571 d, in Lohmann (L) and Hy-Line® W-77 (H) hens, by 8 or 14 d, respectively, of feed withdrawal followed by a rest period of 16 d. Induced molt resulted in increases in egg production, numbers of intact eggs, egg mass per housed or surviving hen, and shell quality and in decreases in egg breakage (not significant), mortality, and culling. Egg weight was only slightly affected by molt, and the EW of hens induced to molt at 431 or 501 d of age were slightly lower than those of the unmolted hens or of those induced to molt at 571 d. Both strains reacted similarly to molt, although the L hens responded better, and expressed their responses more intensively when induced to molt earlier (431 d). This finding suggests that although different breeds have some effects of molt in common, molt protocols should be finely tuned for each breed. Total intact egg production and egg mass of the molted hens became higher than those of the unmolted hens at 650 to 728 d, which suggests that no benefit would be achieved by rearing molted hens for less than 700 to 730 d.
Scientific Publication
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