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Estimation of Genetic Parameters for Reproductive Traits between First and Later Parities in Pig
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Estimation of Genetic Parameters for Reproductive Traits between First and Later Parities in Pig
Oh, S.H.; Lee, D.H.; See, M.T.;
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The objective of this study was to estimate genetic parameters between first and later parities as different traits in reproductive traits of pigs using multiple trait animal model procedures. Data related to reproductive traits from a total of 2,371 individuals maintained at a farm were taken from the pedigree file. Sires and dams were consisted of Duroc, Landrace, and Yorkshire breeds, respectively. The first and later parity records were considered as different traits. Traits included in analyses were total pigs born (TB1), number of pigs born alive (NBA1), number of pigs weaned (NW1), and litter weaning weight (LWT1) in the first parity, and total pigs born (TB2), number of pigs born alive (NBA2), number of pigs weaned (NW2), litter weaning weight (LWT2) and interval between farrowing events (FTF) in later parities. Heritability estimates of TB1, NBA1, NW1 and LWT1 in the first parity were 0.27, 0.25, 0.16 and 0.20, respectively. For TB2, NBA2, NW2, LWT2 and FTF in later parities, heritabilities were estimated as 0.15, 0.15, 0.08, 0.11 and 0.07, respectively. Genetic correlations between sow reproductive traits in the first parity and in the second and later parity were estimated to be 0.89, 0.77, 0.58 and 0.66, respectively, between TB1 and TB2, NBA1 and NBA2, NW1 and NW2, and LWT1 and LWT2. While phenotypic correlations between TB1 and TB2, NBA1 and NBA2, NW1 and NW2, and LWT1 and LWT2 were estimated as 0.18, 0.15, 0.06 and 0.10, respectively. Genetic correlations between reproductive traits of first and later parities were not high indicating that reproductive traits for sows should be analyzed while considering the parities as different traits.
Pig;Reproductive Traits;Parities;Genetic Parameters;
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Adamec, V. and R. K. Johnson. 1997. Genetic analysis of rebreeding intervals, litter traits, and production traits in sows of the National Czech nucleus. Lives. Prod. Sci. 48:13-22 crossref(new window)

Chen, P., T. J. Bass, J. W. Mabry, K. J. Koehler and J. C. M. Dekkers. Genetic parameters and trends for litter traits in U. S. Yorkshire, Duroc, Hampshire, and Landrace pigs. J. Anim. Sci. 81:46-53

Haley, C. S., E. Avalos and C. Smith. 1988. Selection for litter size in the pig. Anim. Breed. Abstr. 56:317

Hermesch, S., B. G. Luxford and H.-U. Graser. 2000. Genetic parameters for lean meat yield, meat quality, reproduction and feed efficiency traits for Australian pigs 3. Genetic parameters for reproduction traits and genetic correlations with production, carcass and meat quality traits. Lives. Prod. Sci. 65:261-270 crossref(new window)

Holm, B., M. Bakken, O. Vangen and R. Rekaya. 2005. Genetic analysis of age at first service, return rate, litter size, and weaning-to-first service interval of gilts and sows. J. Anim. Sci. 83:41-48

Irgang, R., J. A. Favero and B. W. Kennedy. 1994. Genetic parameters for litter size of different parities of Duroc, Landrace, and Large White sows. J. Anim. Sci. 72:2237-2246

Johnson, R. 1997. Genetic basis for variation in weaning to estrus and weaning to farrowing interval in sows. NSIF proceedings. 54-61

Kaplon, M. J., M. F. Rothschild, P. J. Berger and M. Healey. 1991. Population parameter estimates for performance and reproductive traits in Polish Large White nucleus herds. J. Anim. Sci. 69:91-98

Kim, J. I., Y. G. Sohn, J. H. Jung and Y. I. Park. 2003. Genetic parameter estimates for backfat thickness at three different sites and growth rate in swine. Aust. J. Anim. Sci. 17:305-308

Misztal, I. 2001. BLUPF90 family of programs. newprograms.html

Patterson, H. D. and R. Thompson. 1971. Recovery of interblock information when block sizes are unequal, Biometrika 58:545- 554 crossref(new window)

Reents, R., J. Jamrozik, L. R. Schaeffer and J. C. M. Dekkers. 1995. Estimation of genetic parameters for test day records of somatic cell score. J. Dairy Sci. 78:2847-2857

Roehe, R., and B. W. Kennedy. 1995. Estimation of genetic parameters for litter size in Canadian Yorkshire and Landrace swine with each parity of farrowing treated as a different trait. J. Anim. Sci. 73:2959-2970

Rothschild, M. F., C. R. Henderson and R. L. Quaas. 1979. Effects of selection on variances and covariances of simulated first and second lactations. J. Dairy Sci. 62:996

Rydhmer, L., N. Lundeheim and K. Johansson. 1995. Genetic parameters for reproduction traits in sows and relations to performance-test measurements. J. Anim. Breed. Genet. 112:33-42

Steverink, D. W. B., N. M. Soede, G. J. R. Groenland, F. W. van Schie, J. P. T. M. Noordhuizen and B. Kemp. 1999. Duration of estrus in relation to reproduction results in pigs on commercial farms. J. Anim. Sci. 77:801-809

ten Napel, J., T. H. E. Meuwissen, R. K. Johnson and E. W. Brascamp. 1998. Genetics of the interval from weaning to estrus in first-litter sows: correlated responses. J. Anim. Sci. 76:937-947