Non-genetic factors affecting the mortality in Kurdi lambs
Other Title(s)
تأثير العوامل اللاوراثية في هلاك الحملان الكوردية
Author
Source
The Iraqi Journal of Agricultural Science
Issue
Vol. 49, Issue 1 (28 Feb. 2018), pp.78-82, 5 p.
Publisher
University of Baghdad College of Agriculture
Publication Date
2018-02-28
Country of Publication
Iraq
No. of Pages
5
Main Subjects
Topics
Abstract EN
This study was carried out using 94 ewes at Erbil plain - Kurdistan region-Iraq, during the period from May 2016 to April 2017.
The overall mean mortality rates from birth to 7 days and from 8 days to weaning age were 8.6 and 6.6%, respectively.
Age of dam, type of birth, weight of the dam at matting, Body Condition Score (BCS) and birth weight had an important significant (P<0.05) impact on lamb mortality from birth to 7 days and from 8 days to weaning age.
This research revealed that a higher lamb mortality (4.2%) was registered for dams aged 2 years, while a lower mortality(6.6%) was found in dams aged 5-6 years, no significant differences in mortality among males and females were appeared, male lambs showed a higher mortality than females, type of birth showed an important impact (P<0.05) on lamb mortality.
Single born lamb mortality was 5.5%, whereas that of the twin born lamb was significant (13.6%).
Ewes with the (BCS) of 2-3 showed a higher mortality (14.2%), while those ewes with (BCS) more than 3 recorded the lowest lamb mortality (5.4%).
Lambs weighting less than 3 kg at birth registered a higher mortality compared with lambs weighing 3 kg, or more which showed the lowest mortality.
It has appeared from the results of this study that most of the non-genetic factors studied involve: Age of dam, type of birth, birth weight, and weight of the dam, and body condition score showed a substantial significant influence on lamb mortality between birth and weaning of Kurdi sheep.
American Psychological Association (APA)
Rauf, Salim Umar. 2018. Non-genetic factors affecting the mortality in Kurdi lambs. The Iraqi Journal of Agricultural Science،Vol. 49, no. 1, pp.78-82.
https://search.emarefa.net/detail/BIM-838551
Modern Language Association (MLA)
Rauf, Salim Umar. Non-genetic factors affecting the mortality in Kurdi lambs. The Iraqi Journal of Agricultural Science Vol. 49, no. 1 (2018), pp.78-82.
https://search.emarefa.net/detail/BIM-838551
American Medical Association (AMA)
Rauf, Salim Umar. Non-genetic factors affecting the mortality in Kurdi lambs. The Iraqi Journal of Agricultural Science. 2018. Vol. 49, no. 1, pp.78-82.
https://search.emarefa.net/detail/BIM-838551
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 82
Record ID
BIM-838551