Advanced SearchSearch Tips
Ear Type and Coat Color on Growth Performances of Crossbred Pigs
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Ear Type and Coat Color on Growth Performances of Crossbred Pigs
Choy, Y.H.; Jeon, G.J.; Kim, T.H.; Choi, B.H.; Chung, H.W.;
  PDF(new window)
Records from a total of 202 crossbred pigs were classified by their ear type and coat color to examine the presence of interrelationships with growth performances. Crossbred pigs were F2 generations of full sib family out of ten Landrace sows bred by 5 Korean domestic boars. Heavily drooped ear type was predominant, 195 out of 202 pigs over the other two types (1 straight and 6 slightly drooped). Coat colors were classified as four categories, all white, all black, dominant white or dominant black. Ratio among coat color categories did not fall within Mendelian principle of independence regarding two loci involved. There was dependency between ear type and coat color. However, due to rarity of ear types other than heavy drooped, dependency comes from distribution of those rare ear types. Three least squares models to test the effect of ear type and coat colors on growth performances were analyzed. First model analyzed effects on birth weight, body weight at 3 and 6 weeks and ADG' before weaning and between 3 and 5 weeks of age. This model included sex in addition to ear type and coat color. Second model analyzed postweaning growth traits (initial weight, final weight and ADG between these periods) upon initiation of performance testing. This model included effects of sex, test group and start age (as a covariate) in addition. Third model was fit for fasted weight before slaughter and included the effects of sex, test group and age at slaughter (as a covariate). The effects of sex and ear type were not significant source of variation for all traits. Test group was a significant source of variation for all the postweaning traits. Effect of coat color was not significant until the initiation of performance testing and became significant then after. Least squares means of dominantly black pigs were significantly lower than the other three coat colored pigs in final weight around 195 days of age and in ADG from the start of performance test and final weight measure.
Crossbred;Ear Type;Coat Color;Growth;
 Cited by
Detection of Mendelian and Parent-of-origin Quantitative Trait Loci in a Cross between Korean Native Pig and Landrace I. Growth and Body Composition Traits,;;;;;;;

아세아태평양축산학회지, 2007. vol.20. 5, pp.669-676 crossref(new window)
Characterization of QTL for Growth and Meat Quality in Combined Pig QTL Populations,;;;;;;;;

아세아태평양축산학회지, 2011. vol.24. 12, pp.1651-1659 crossref(new window)
Detection of Mendelian and Parent-of-origin Quantitative Trait Loci for Meat Quality in a Cross between Korean Native Pig and Landrace,;;;;;;;

아세아태평양축산학회지, 2011. vol.24. 12, pp.1644-1650 crossref(new window)
A Whole Genome Association Study on Meat Quality Traits Using High Density SNP Chips in a Cross between Korean Native Pig and Landrace,;;;;;;;;

아세아태평양축산학회지, 2012. vol.25. 11, pp.1529-1539 crossref(new window)
Analyses of porcine public SNPs in coding-gene regions by re-sequencing and phenotypic association studies, Molecular Biology Reports, 2011, 38, 6, 3805  crossref(new windwow)
Neuronal Genes for Subcutaneous Fat Thickness in Human and Pig Are Identified by Local Genomic Sequencing and Combined SNP Association Study, PLoS ONE, 2011, 6, 2, e16356  crossref(new windwow)
Johansson-Moller, M., R. Chaudhary, E. Hellmen, B. Hoyheim, B. Chowdhary and L. Andersson. 1996. Pigs with the dominant white coat color phenotype carry a duplication of the KIT gene encoding the mast/stem cell growth factor receptor. Mammalian Genome. 7:822-830. crossref(new window)

Kijas, J. M. H., R. Wales, A. Tornsten, P. Chardon, M. Moller and L. Andersson. 1998. Melanocortin receptor 1 (MC1R) mutations and coat colour in pigs. Genetics. 150:117-1185.

Legault, C. 1998. Genetics of colour variation. In: The Genetics of the Pig (Ed. M. F. Rothschild and A. Ruvinsky). CAB International. pp. 51-69.

Marklund, S., J. Kijas, H. Rodrigez-Martinez, L. Ronnstrand, K. Funa, M. Moller, D. Lange, I. Edfors-Lilja and L. Andersson. 1998. Molecular basis for the dominant white phenotype in the domestic pig. Genome Research. 8:826-833.

Rothschild, M. F. and G. S. Plastow. 1999. Advances in pig genomics and industry applications. AgBiotechNet. 1 (Feb.), ABN 007:1-7.

SAS. 1990. SAS/STAT User's Guide. Ver. 6, 4th Ed. SAS Institute, Cary, NC, USA.

Spillman, W. J. 1906. Inheritance of coat color in swine. Science. 24:441-443. crossref(new window)