Click for new scientific resources and news about Corona[COVID-19]

Paper Information

Journal:   IRANIAN JOURNAL OF AGRICULTURAL SCIENCES (JOURNAL OF AGRICULTURE)   2007 , Volume 37 , Number 6; Page(s) 1049 To 1057.
 
Paper: 

A STUDY OF THE PHENOTYPIC AND GENETIC CHARACTERISTICS OF EWE TRAITS IN LORI-BAKHTIARI SHEEP

 
 
Author(s):  VATANKHAH M.*, MORADI SHAHR BABAK M., NEJATI JAVAREMI A., MIRAEI ASHTIANI S.R., VAEZ TORSHIZI R.
 
* AGRICULTURE & NATURAL RESOURCES RESEARCH CENTER, SHAHRE KORD
 
Abstract: 

The phenotypic and genetic characteristics of ewe traits were studied using multitrait animal model analysis with DFREML procedure on the data of 5025 ewe trait records, collected during 1989 to 2003 in Rearing and Improvement of Lori-Sakhtiari Sheep Station (Sholi) in Shahrekord. The model included fixed effects (year, age of ewe and according to trait sex of lamb, and days of weaning as covariate) and random effects additive genetic of ewe, permanent environmental of ewe as well as residual. The overall mean (s.d) of traits were 56.21 (7.33) kg for ewe body weight, 1.91 (0.54) kg for greasy fleece weight, 0.91 (0.28) for conception rate, 1.20 (0.43) for number of lambs born per ewe lambing, 1.12 (0.45) for number of lambs weaned per ewe lambing, 1.06 (0.56) for number of lambs born per ewe joined, 1.00 (0.55) for number of lambs weaned per ewe joined, 5.65 (1.48) kg for total birth weight per ewe lambing, 31.34 (8.26) kg for total weaned weight per ewe lambing, 5.01 (2.28) kg for total birth weight per ewe joined, and 26.77 (13.44) for total weaned weight per ewe joined. The heritability coefficient of ewe body weight and greasy fleece weight were estimated as 0.42±0.02 and 0.55±0.02. For reproduction traits the corresponding estimates ranged from 0.04±0.02 for number of lambs weaned per ewe joined to 0.14±0.02 for number of lambs born per ewe lambing.
The repeatability coefficient of ewe body weight (0.60) and greasy fleece weight (0.66) were high while for reproduction traits low (0.11) to moderate (0.26). The phenotypic and genetic correlations between body weight and other traits were low to moderate, between greasy fleece weight and reproduction traits were low, between conception rate and other reproduction traits, they were low whereas among the rest of reproduction traits moderate to high.

 
Keyword(s): EWE TRAITS, PHENOTYPIC AND GENETIC PARAMETERS, MULTITRAIT ANIMAL MODEL, LORI-SAKHTIARI SHEEP
 
 
References: 
  • Not Registered.
  •  
  •  
 
Citations: 
  • Not Registered.
 
+ Click to Cite.
APA: Copy

VATANKHAH, M., & MORADI SHAHR BABAK, M., & NEJATI JAVAREMI, A., & MIRAEI ASHTIANI, S., & VAEZ TORSHIZI, R. (2007). A STUDY OF THE PHENOTYPIC AND GENETIC CHARACTERISTICS OF EWE TRAITS IN LORI-BAKHTIARI SHEEP. IRANIAN JOURNAL OF AGRICULTURAL SCIENCES (JOURNAL OF AGRICULTURE), 37(6), 1049-1057. https://www.sid.ir/en/journal/ViewPaper.aspx?id=105557



Vancouver: Copy

VATANKHAH M., MORADI SHAHR BABAK M., NEJATI JAVAREMI A., MIRAEI ASHTIANI S.R., VAEZ TORSHIZI R.. A STUDY OF THE PHENOTYPIC AND GENETIC CHARACTERISTICS OF EWE TRAITS IN LORI-BAKHTIARI SHEEP. IRANIAN JOURNAL OF AGRICULTURAL SCIENCES (JOURNAL OF AGRICULTURE). 2007 [cited 2021July31];37(6):1049-1057. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=105557



IEEE: Copy

VATANKHAH, M., MORADI SHAHR BABAK, M., NEJATI JAVAREMI, A., MIRAEI ASHTIANI, S., VAEZ TORSHIZI, R., 2007. A STUDY OF THE PHENOTYPIC AND GENETIC CHARACTERISTICS OF EWE TRAITS IN LORI-BAKHTIARI SHEEP. IRANIAN JOURNAL OF AGRICULTURAL SCIENCES (JOURNAL OF AGRICULTURE), [online] 37(6), pp.1049-1057. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=105557.



 
 
Persian Abstract Yearly Visit 53
 
 
Latest on Blog
Enter SID Blog