Genetic Parameters for Body Weight and Laying Traits in Mazandaran Native Breeder Hens
محورهای موضوعی : Camel
A.A. Shadparvar
1
(Department of Animal Science, Universityof Guilan, Rasht, Iran)
B. Enayati
2
(Department of Animal Science, Faculty ofAnimal and Aquatic Science, Mazandaran University, Sari, Iran)
کلید واژه: body weight, genetic parameters, egg weight, age at sexual maturity, Mazandaran native breeder hens,
چکیده مقاله :
Heritability, environmentaland genetic correlations between body weight at hatch (BW0), eight (BW8) and twelve (BW12) weeksof age, body weight at sexual maturity (BWM), age at sexual maturity (AFE),the weight of the first egg laid by the hen (EWM), the mean egg weight from 28 to 32 wks (EW28-32) and egg numbers (ENs) were estimated by the restricted maximum likelihood method under an animal model. Data were from six generations (generation ten to fifteen) of hens kept at the Mazandaran Breeding Center of Iran. Heritability estimates for BW0, BW8, BW12, BWM, AFE, EWM, EW28-32 and ENs were 0.134, 0.235, 0.296, 0.247, 0.344, 0.125, 0.240 and 0.156, respectively. Genetic correlations between pairs of body weight measures were moderate with a range from 0.17 to 0.43. Generally, correlations of body weight traits with AFE were weak. Genetic correlation between BW8 and AFE was low, but favorable (-0.17). Egg numbers has unfavorable genetic correlation with BWM (-0.47). However, egg weight traits had favorable genetic correlation with body weight traits, except BW0, which was almost equal to zero. Age at first egg had negative genetic correlation with egg numbers, but positive correlations with egg weight traits. The absolute value of environmental correlations between traits varied from 0.00 to 0.39. The strongest environmental correlation was found between AFE and EWM. There was moderate and positive environmental correlation between BW8 and BW12as well asbetween BW12 and BWM. The results showed that there are considerable genetic variations in important traits of Mazandaran native hens, and that selection on BW8, ENs and EWM, which are the most economicallyimportant traits in this breed, could be effective.
Abbasi H.A., Gharahveysi S. and Abdullahpour R (2011). Study of polymorphism of leptin gene receptor in Mazandaran fowls. African J. Biotechnol. 10, 4024-4028.
Adeogun I.O. and Adeoye A.A. (2004). Heritabilities and phenotypic correlations of growth performance traits in Japanese quails. Livest. Res. Rural. Dev. 16, 12-18.
Akbas Y.,,Unver Y., OguzI.and Altan O. (2002). Comparison of different variance component estimation methods for genetic parameters of clutch pattern in laying hens. Europ.Poul.Sci. 6, 232-236.
Beigi Nassiri M.T., Hamidi Z. and Tavakoli S. (2007). The Investigation of genetic variation at microsatellite loci in Mazandaran native chickens. Int. J. Poult. Sci. 6, 675-678.
Food and Agriculture Organization of the United Nations. (2012). Meat production and quality. Available at: http://www.fao.org/docrep/T0562E/T0562E01.htm.
Francesch A., Estany J., Alfonso L. and Igelesias M. (1997). Genetic parameters for egg number, egg weight, and eggshell color in three Catalan poultry breeds. Poult.Sci. 76, 1627-1631.
Ghazikhani A., Nejati A. and Mehrabani H. (2007). Animal model estimation of parameters for most important economic traits in Iranian native fowls. PakistanJ. Biological. Sci. 10, 2787-2789.
Hagger C. (1994). Genetic correlations between body weight of cocks and production traits in laying hens, and their possible use in breeding schemes. Poult. Sci. 73, 381-387.
Halima H., Neser F.W.C., De Kock A. and Van Marle-Koster E. (2009). Study on the genetic diversity of native chickens in northwest Ethiopiausing microsatellite markers. African J. Biotechnol. 8, 1347-1353.
Kamali H.A., Ghorbani S.H., Shahrbabak M.M. and Zamiri M.J. (2007). Heritabilities and genetic correlations of economic traits in Iranian native fowl and estimated genetic trend and inbreeding coefficients. Br. Poult. Sci. 48, 443-448.
Kianimanesh H.R., Nejati A. and Rahimi G. (2001a). Estimation of economic indices for production traits of Iranian native fowls. Pp.283-288 inProc. 1st Sem. Genet. Breed. App. Livest. Poul. Aqua. Iran.
Kianimanesh H.R., Nejati A. and Rahimi G. (2001b). Estimation of genetic and environmental (co) variance components of the Iranian native fowls. Pp.275-282 inProc. 1st Sem. Genet. Breed. App. Livest. Poul. Aqua. Iran.
Kianimanesh H.R., Nejati A., Rahimi G. and Ariana A.H. (2001c). Investigation of genetic trends for important economic traits in Mazandaranian native fowls. Pp.300-306 inProc. 1st Sem. Genet. Breed. App. Livest. Poul. Aqua. Iran.
Koerhuis A.N.M.and Mckay J.C. (1996). Restricted maximum likelihood estimation of genetic parameters for egg production traits in relation to juvenile body weight in broiler chickens. Livest. Prod. Sci. 46, 117-127.
Lubritz D.L. and Smith L. (1996). Genetic parameter estimates for egg production in dwarf broiler breeders. J. Appl. Poult. Res. 5, 305-310.
Luo P.T., Yang R.Q. and Yang N. (2007). Estimation of genetic parameters for cumulative egg numbers in a broiler dam line by using a random regression model. Poult. Sci. 86,30-36.
Meyer K. (1991). Estimating variances and co-variances for multivariate animal models by restricted maximum likelihood. Genet. Sel. Evol. 23, 67-83.
Muchadeyi F.C., Eding H., Wollny C.B.A., Groeneveld E., Makuza S.M., Shamseldin R., Simianer H. and Weigend S. (2007). Absence of population sub-structuring in Zimbabwechicken ecotypes inferred using microsatellite analysis. Anim. Genet. 38, 332-339.
Mwacharo J.M., Nomura K., Hanada H., Jianlin H., Hanotte O.and Amano T. ( 2007). Genetic relationships among Kenyan and other East African indigenous chickens. Anim. Genet. 38, 485-490.
Nigussie D., Vander E.H. and Van A.M. (2011). Genetic and phenotypic parameter estimates for body weights and egg production in Horro chicken of Ethiopia. Trop. Anim. Health. Prod. 43, 21-28.
Norris D., Banga C., Benyi K. and Sithole B.C.D. (2004). Estimation of genetic parameters and variance components for growth traits of Nguni cattle in Limpopo Province, South Africa. Trop. Anim. Health. Prod. 36, 801-806
Prado-Gonzalez E.A., Ramirez-Avila L. and Segura-CorreaJ.C. (2003). Genetic parameters for body weights of Creolechickens from Southeastern Mexicousing an animalmodel. Livest. Res. Rural. Dev.15, 1-6.
Sabri H.M., Wilson H.R., Harms R.H. and Wilcox C.J. (1999). Genetic Parameters for egg and related characteristics of white leghorn hens in a subtropical environment. Genet. Molec. Bio. 22, 183-186.
SAS Institute. (1999). User’s Guide: Statistics. Version 9.1 Ed. SAS Inst. Inc., Cary, NC.
Tufveesson B., Tufveesson M., Lillpers K., Johansson K. and Wilhelmson M. (1998). Effect of selection for male comb size on egg production traits and comb size in white leghorn layer females. Uppsala, Sweden. 24, 373-376.
Vali N. (2008). Indigenous chicken production in Iran: A review. Pak. J. Biol. Sci. 15, 2525-2531.
