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Seasonal effects on birth weight of lambs born to prolific ewes maintained under intensive management
Year:
2006
Source of publication :
Livestock Science
Authors :
Gootwine, Elisha
;
.
Rozov, Alexander
;
.
Volume :
105
Co-Authors:
Gootwine, E., Institute of Animal Science, A.R.O., The Volcani Center, P.O. Box 6, Bet Dagan, 50250, Israel
Rozov, A., Institute of Animal Science, A.R.O., The Volcani Center, P.O. Box 6, Bet Dagan, 50250, Israel
Facilitators :
From page:
277
To page:
283
(
Total pages:
7
)
Abstract:
Seasonal effects on birth weight (BWT) of lambs were studied in a prolific Assaf flock maintained under intensive management conditions with birth records of 7775 lambs distributed across all months in a period of 11 years. The average BWT was 4.21 kg. Month of the year had a significant (P < 0.001) effect on BWT, with the highest average BWT in April (4.6 kg) and the lowest average BWT in September (3.8 kg). The seasonal effect was noted for single lambs and lambs born in litters of 2 to 4 lambs. Gestation length, day length, rate of change in day length and heat load had significant (P < 0.001) effects on BWT. Day length during the early stage of gestation was inversely related to BWT while rate of changes in day length during the latter stages of gestation were directly associated with BWT. © 2006 Elsevier B.V. All rights reserved.
Note:
Related Files :
ASSAF
Birth Weight
Heat load
Ovis
Ovis aries
Photoperiod
seasonality
sheep
Show More
Related Content
More details
DOI :
10.1016/j.livsci.2006.06.018
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
20792
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:39
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Scientific Publication
Seasonal effects on birth weight of lambs born to prolific ewes maintained under intensive management
105
Gootwine, E., Institute of Animal Science, A.R.O., The Volcani Center, P.O. Box 6, Bet Dagan, 50250, Israel
Rozov, A., Institute of Animal Science, A.R.O., The Volcani Center, P.O. Box 6, Bet Dagan, 50250, Israel
Seasonal effects on birth weight of lambs born to prolific ewes maintained under intensive management
Seasonal effects on birth weight (BWT) of lambs were studied in a prolific Assaf flock maintained under intensive management conditions with birth records of 7775 lambs distributed across all months in a period of 11 years. The average BWT was 4.21 kg. Month of the year had a significant (P < 0.001) effect on BWT, with the highest average BWT in April (4.6 kg) and the lowest average BWT in September (3.8 kg). The seasonal effect was noted for single lambs and lambs born in litters of 2 to 4 lambs. Gestation length, day length, rate of change in day length and heat load had significant (P < 0.001) effects on BWT. Day length during the early stage of gestation was inversely related to BWT while rate of changes in day length during the latter stages of gestation were directly associated with BWT. © 2006 Elsevier B.V. All rights reserved.
Scientific Publication
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