Genetic parameters of live body weight, body measurements, greasy fleece weight, and reproduction traits in Makuie sheep breed

  • Shoja Jafari Dept. Animal Science, Faculty of Agriculture, Urmia University, Urmia West Azerbaijan Jihad-Agriculture Organization, Makuie Sheep Breeding Station, Maku
  • Ali Hashemi Dept. Animal Science, Faculty of Agriculture, Urmia University, Urmia
  • Reza Darvishzadeh Dept. Plant Breeding and Biotechnology, Urmia University, Urmia
  • Ghader Manafiazar Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada West Azerbaijan Agriculture and Natural Resource Research Center, Urmia, Iran
Keywords: animal model, production traits, direct and maternal effects, heritability


Genetic parameters of production and reproduction traits were estimated using 39,926 records from 5,860 individual progenies of 163 sires and 1,558 dams. The data were collected at Makuie Sheep Breeding and Raising Station (Maku, Iran) from 1989 through 2013. Nineteen traits were classified in four main groups: a) live body weight traits, b) body measurement traits, c) greasy fleece weight traits, and d) reproduction traits. Year of birth, lamb sex, age of dam, and birth type were considered as fixed effects in the animal model. Four different animal models that are differentiated by including or excluding maternal effects were fitted for each trait. The Akaike information criterion was used to determine the most appropriate model for each trait. Parameters were overestimated substantially when maternal effects, either genetic or environmental, were ignored from the models. By ignoring the maternal effects, the traits could be classified into three main groups: body live weight traits with high heritability (0.34-0.46), body measurement and greasy fleece weight traits with medium heritability (0.11-0.27) and reproduction traits with low heritability (0.03-0.20). The genetic correlations among the traits ranged from-0.41 to 0.99. The estimated genetic parameters may be used to set up short/long term breeding program for the selection purpose of Makuie sheep breed.


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Aghaali-Gamasaee V, Hafezian, SH, Ahmadi A, Baneh H, 2010. Estimation of genetic parameters for body weight at different ages in Mehraban sheep. Afr J Biotechnol 9: 5218-5223.

Akaike H, 1974. A new look at the statistical model identification. IEEE Transactions, Automatic Control 19: 716-723.

Alfolayan RA, Adeyinka IA, Lakpini CAM, 2006. The estimation of live weight from body measurement in Yankasa sheep. Czech J Anim Sci 51: 343-348.

Atta M, El Khidir OA, 2004. Use of heart girth wither height and scapulaischial length for prediction of live weight of Nilotic sheep. Small Rumin Res 55(1-3): 233-237.

Babar ME, 2008. Heritability estimate of ewe traits in Lohi sheep. Acta Agric Scad Anim Sci 58: 61-64.

Boujenane I, Hazzab ELA, 2008. Genetic parameters for direct and maternal effects on body weights of Draa goats. Small Rumin Res 80: 16-21.

Brown DJ, 2007. Variance components for lambing ease and gestation length in sheep. Proc. Conf.-Assoc. for the Advancement of Animal Breeding and Genetics, pp: 268-271.

Cam MA, Olfaz M, Soydan E, 2010. Body measurements reflect body weights and carcass yield in Karayaka sheep. Asian J Anim Vet Adv 5(2): 120-127.

El Fadili M, Michaux C, Detilleux J, Leroy PL, 2000. Genetic parameters for growth traits of the Moroccan Timahdit breed of sheep. Small Rumin Res 37: 203-208.

Ermias E, Rege JEO, 2003. Characteristic of live animal allometric measurements associated with body fat in fat-tailed sheep. Livest Prod Sci 81: 271-281.

Fogarty NM, 1995. Genetic parameters for live weight, fat and muscle measurements, wool production and reproduction in sheep: a review. Animal Breeding Abstract 63: 101-143.

Fourie PJ, Neser FWC, Oliver JJ, Van Der Westhuize C, 2002. Relationship between production performance, visual appraisal and body measurements of young Dorper rams. S Afr J Anim Sci 32(4): 256-262.

Jafari S, Hashemi A, Manafiazer G, Darvishzadeh R, Razzagzadeh S, Farhadian M, 2012. Genetic analysis of growth traits in Iranian Makuie sheep breed. Ital J Anim Sci 11: 98-102.

Janssens S, Vandepitte W, 2004. Genetic parameters for body measurements and type traits in Belgian Bleu du Maine, Suffolk and Texel sheep. Small Rumin Res 54: 13-24.

Khan HM, Bhat AS, Singh PK, Islam R, 2006. Effect of dam lamb relationship on body weight gain of Coriedale lambs during pre-weaning period. Ind J Anim Res 40 (1): 82-84.

Komlosi I, 2008. Genetic parameters for growth traits of the Hungarian merino and meat sheep breeds in Hungary. Appl Ecol Environ Res 6: 77-84.

Kunene N, Nesamvuni EA, Fossey AF, 2007. Characterization of Zulu (Nguni) sheep using linear body measurement and some environmental factors affecting these measurements. S Afr J Anim Sci 37: 11-20.

Lee JW, Waldron DF, Van Vleck LD, 2000. Parameter estimates for greasy fleece weight of Rambouillet sheep at different ages. J Anim Sci 78: 2108-2112.

Mandal A, Neser FWC, Rout PK, Roy R, Notter DR, 2006. Estimation of direct and maternal (co)variance components for pre-weaning growth traits in Muzaffarnagari sheep. Livest Sci 99: 79-89.

Mandal A, Prasad H, Kumar A, Roy R, Sharma N, 2007. Factors associated with lamb mortalities in Muzaffarnagari sheep. Small Rumen Res 7: 273-279.

Mandal A, Dass G, Rout PK, Roy R, 2010. Genetic parameters for direct and maternal effects on post-weaning body measurements of Muzaffarnagari sheep in India. Trop Anim Health Prod 43(3): 675-83.

Matiatis N, Pollott GE, 2003. The impact of data structure on genetic (co) variance components of early growth in sheep, estimated using an animal model with natural effects. J Anim Sci 81: 101-108.

Matika O, Van Wyk JB, Erasmus GJ, Bake RL, 2003. Genetic parameter estimates in Sabi sheep. Livest Prod Sci 79: 17-28.

Meyer K, 1989. Restricted maximum likelihood to estimate variance components for animal models with several random effects using a derivative-free algorithm. Genet Sel Evol 21: 317-340.

Meyer K, 1992. Variance components due to direct and maternal effects for growth traits of Australian beef cattle. Livest Prod Sci 31: 179-204.

Miraei-Ashtiani SR, Seyedian SAR, Shahrbabak MM, 2007. Variance components and heritabilities for body weight traits in Sangsari sheep, using univariate and multivariate animal models. Small Rumin Res 73: 109-114.

Mokhtari MS, Rashidi A, Mohammadi Y, 2008. Estimation of genetic parameters for post-weaning traits of Kermani sheep. Small Rumin Res 80: 22-27.

Neser FWC, Erasmus GJ, Van Wyk JB, 2001. Genetic parameter estimates for pre-weaning weight traits in Dorper sheep. Small Rumin Res 40: 197-202.

Osinowo OA, Abubakar BY, Trimnel AR, 1993. Genetic and phenotypic relationships between gestation length, litter size and litter birth weight in Yankasa sheep. Anim Repr Sci 34: 111-118.

Rosati A, Mousa E, Van Vleck LD, Young LD, 2002. Genetic parameters of reproductive traits in sheep. Small Rumin Res 43: 65-74.

Safari A, Fogarty NM, 2003. Genetic parameters for sheep production traits. Estimates from the literature. NSW Agriculture and Australian sheep industry CRC.

Safari E, Fogarty NM, Gilmor AR, 2005. A review of genetic parameter estimates for wool, growth, meat and reproduction traits in sheep. Livest Pro Sci 92: 271-289.

Salako AE, 2006a. Application of morphological indices in the assessment of type and function in sheep. Int J Morphol 24(1): 13-18.

Salako AE, 2006b. Principal component factor analysis of the morpho structure of immature Uda sheep. Int J Morph 24: 571-574.

SAS, 2005. SAS/STAT software, vers. 6. SAS Inst. Inc., Cary, NC, USA.

Sezenler T, Yildirir M, Ceyhan A, Yuksel MA, Onal AR, Ozder M, 2011. The effects of body condition score and age of ewes on the reproductive performance in Kivircik, Sakiz and Gokceada sheep. J Anim Sci Adv 1: 94-99.

Skalski JR, 2003. Survival under proportional hazards. Colombia Basin Research, School of Aquatic and Fishery Sciences, University of Washington, Seattle, USA. pp: 1324-1344.

Smith GM, 1977. Factors affecting birth weight, dystocia and pre weaning survival in sheep. J Anim Sci 44: 745-753.

Snowder GD, 2008. Genetic improvement of overall reproductive success in sheep: a review. Asociación Latinoamericana de Producción Animal 16: 32-40.

Southey BR, Rodriguez-Zas SL, Leymaster KA, 2001. Survival analysis of lamb mortality in a terminal sire composite population. J Anim Sci 79: 2298-2306.

Vatankhah M, Talebi MA, Edriss MA, 2008. Estimation of reproductive traits in Lori-Bakhtiari sheep. Small Rumin Res 74: 216-220.

Yakubu A, 2010. Path coefficient and path analysis of body weight and biometric traits in Yankasa lambs. Slovak J Anim Sci 43: 17-25.

Zhang CY, Chen SL, Li DQ, Xu X, Zhang Y, Yang LG, 2009. Genetic and phenotypic parameter estimates for reproduction traits in the Boer dam. Livest Sci 125: 60-65.

How to Cite
JafariS., HashemiA., DarvishzadehR., & ManafiazarG. (2014). Genetic parameters of live body weight, body measurements, greasy fleece weight, and reproduction traits in Makuie sheep breed. Spanish Journal of Agricultural Research, 12(3), 653-663.
Animal breeding, genetics and reproduction