Document Detail


Investigation in early growth traits, litter size, and lamb survival in two Iranian fat-tailed sheep breeds.
MedLine Citation:
PMID:  23135983     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
In the present study, 1,635 lambing records of Ghezel (n = 766) and Mehraban (n = 869) breeds were used to evaluate the early growth traits, litter size, and lamb survival in sheep reared in Fars Province, southern Iran, during a 5-year-long period. The least squares means (± SE) of lamb birth weight for Ghezel were 5.27 (±0.22), 5.02 (±0.22), and 3.98 (±0.23) kg for single males, single females, and twin lambs, respectively; whereas, the corresponding values for Mehraban were 4.39 (±0.18), 4.18 (±0.18), and 3.50 (±0.19) kg. The least squares means of pre-weaning lamb growth (gram per day) for Ghezel were 239 (±15), 218 (±15), and 181 (±16) for single males, single females, and twin lambs, respectively, and the corresponding values for Mehraban were 204 (±12), 187 (±12), and 156 (±13). Lambs from 2 year old ewes or younger were on average lighter at birth and at weaning and had a lower average daily gain than those from older ewes (P < 0.05). The percentage of twin births increased from 1.1 and 1.3 % for ewes aged ≤ 2 years to 19 and 12 % for those aged ≥ 6 years old in Ghezel and Mehraban, respectively (P < 0.05). The mean pre-weaning lamb mortality was 7.1 and 4.1 % for Ghezel and Mehraban, respectively.
Authors:
Hadi Atashi; Jamshid Izadifard; Mohammad Javad Zamiri; Amir Akhlaghi
Related Documents :
21123273 - Before senescence: the evolutionary demography of ontogenesis.
21391943 - Transitions in frailty status in older adults in relation to mobility: a multistate mod...
15300183 - Effects of long-term oxandrolone administration in severely burned children.
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-8
Journal Detail:
Title:  Tropical animal health and production     Volume:  -     ISSN:  1573-7438     ISO Abbreviation:  Trop Anim Health Prod     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-8     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  1277355     Medline TA:  Trop Anim Health Prod     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Animal Science, College of Agriculture, Shiraz University, Shiraz, Iran, Atashi@shirazu.ac.ir.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Estrus induction in anestrous mixed-breed goats using the "female-to-female effect"
Next Document:  Evaluation of five serological tests for the diagnosis of porcine brucellosis in French Polynesia.