Genetic relationships between length of productive life and lifetime production efficiency in a commercial swine herd in Northern Thailand

Noppibool, Udomsak; Elzo, Mauricio A.; Koonawootrittriron, Skorn; Suwanasopee, Thanathip

doi:10.1111/asj.12647

Cited by 3 publications

(4 citation statements)

References 27 publications

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“…Differently, positive favourable genetic and phenotypic correlations were found between longevity (LPL) and lifetime production traits (LNL, LTP and LTP365). These results agree with previous studies (Sobczyńska et al, 2013;Noppibool et al, 2017). It also demonstrates that sows with higher EBV and phenotypic values for lifetime production traits are kept longer in the herd.…”

Section: Accepted Manuscriptsupporting

confidence: 92%

“…Contrarily to litter size traits, few studies are available for reproduction traits related to production intervals or longevity. Even though, in our study, the estimated heritability for FIT was lower than the mean value achieved by Akanno et al (2013) The length of productive life (LPL) is commonly defined as time (days) between the sow age at first farrowing and the age at culling/mortality (Yazdi et al, 2000;Serenius and Stalder, 2007), last farrowing (Sobczyńska et al, 2013) or weaning of last litter (Noppibool et al, 2016;Noppibool et al, 2017). In our study, many sows had only one registered litter as they were kept off breeding prematurely, ergo LPL was defined as time from birth to last farrowing.…”

Section: Accepted Manuscriptcontrasting

confidence: 68%

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Genetic parameters for reproductive, longevity and lifetime production traits in Bísaro pigs

et al. 2019

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Highlights Bísaro pig have modest reproductive values  Heritabilities for litter size traits were low but the genetic variability was high  Longevity and lifetime production traits were strongly related between  Genetic trends showed no major changes during the last two decades  Selecting for litter size traits should focus on number of piglets born alive ACCEPTED MANUSCRIPT AbstractThe Bísaro pig has gained popularity in recent years reflecting the success of the conservation program. Nevertheless, no data is available for animal genetic evaluation in this breed. Therefore, this study aimed to estimate genetic parameters and trends for reproduction related traits in Bísaro pigs. Through a restricted maximum likelihood procedure applied to mixed linear models, 27,844 farrowing records, from 1995 to 2017, were used to analyse total number of pigs born per litter (NBT), number of pigs born alive (NBA), number of stillborn (NSB), number of pigs weaned per litter (NBW), age at first farrowing (AFF), farrowing interval (FIT), length of productive life (LPL), lifetime number of litters (LNL), lifetime pig production (LTP) and lifetime efficiency (LTP365). The heritability estimates for litter size traits were low and ranged from 0.007±0.004 to 0.015±0.006. Differently, the heritabilities for traits related to longevity and lifetime production traits were higher (0.078±0.026 to 0.121±0.030). AFF registered the highest heritability value (0.345±0.028). ACCEPTED MANUSCRIPT A C C E P T E D M A N U S C R I P TNSB and FIT presented high values of additive genetic coefficient of variation (0.177 and 0.271) in contrast with low heritability estimates (0.007±0.004 and 0.002±0.005). Very tight genetic correlations were found between NBT and NBA (0.968), NBW and NBT (0.974), and NBW and NBA (0.945). Weak genetic correlations were found between both NBT and NSB (0.352) and between NBA and NSB (0.107). Longevity and lifetime production traits presented high positive genetic correlations (0.811-0.969) and moderate to high phenotypic correlations (0.266-0.946). No major genetic changes were registered over time for most of the analysed traits, except for AFF and LPL, having registered an overall decreased of mean estimated breeding values (21.3 and 17.5) and negative genetic trends of -0.6 and -0.4 (P<0.001), respectively.

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Section: Accepted Manuscriptsupporting

confidence: 92%

Section: Accepted Manuscriptcontrasting

confidence: 68%

Genetic parameters for reproductive, longevity and lifetime production traits in Bísaro pigs

et al. 2019

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“…The h 2 estimates for PSY traits were also low. Noppibool et al (2017) reported h 2 of 0.07 ± 0.03 for NBA PSY and 0.13 ± 0.03 for NW PSY in purebred sows (Landrace and Yorkshire). Abell et al (2013) reported an h 2 of 0.11 ± 0.01 in a study including Landrace, Large White, and F1 sows.…”

Section: Heritabilitiesmentioning

confidence: 97%

Genetic Analysis of Antibody Response to Porcine Reproductive and Respiratory Syndrome Vaccination as an Indicator Trait for Reproductive Performance in Commercial Sows

Sanglard

Fernando

Gray³

et al. 2020

Front. Genet.

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We proposed to investigate the genomic basis of antibody response to porcine reproductive and respiratory syndrome (PRRS) virus (PRRSV) vaccination and its relationship to reproductive performance in non-PRRSV-infected commercial sows. Nine hundred and six F1 replacement gilts (139 ± 17 days old) from two commercial farms were vaccinated with a commercial modified live PRRSV vaccine. Blood samples were collected about 52 days after vaccination to measure antibody response to PRRSV as sample-to-positive (S/P) ratio and for single-nucleotide polymorphism (SNP) genotyping. Reproductive performance was recorded for up to 807 sows for number born alive (NBA), number of piglets weaned, number born mummified (MUM), number of stillborn (NSB), and number of pre-weaning mortality (PWM) at parities (P) 1-3 and per sow per year (PSY). Fertility traits such as farrowing rate and age at first service were also analyzed. BayesC0 was used to estimate heritability and genetic correlations of S/P ratio with reproductive performance. Genome-wide association study (GWAS) and genomic prediction were performed using BayesB. The heritability estimate of S/P ratio was 0.34 ± 0.05. High genetic correlations (r g) of S/P ratio with farrowing performance were identified for NBA P1 (0.61), PWM P2 (-0.70), NSB P3 (-0.83), MUM P3 (-0.84), and NSB PSY (-0.90), indicating that genetic selection for increased S/P ratio would result in improved performance of these traits. A quantitative trait locus was identified on chromosome 7 (∼25 Mb), at the major histocompatibility complex (MHC) region, explaining ∼30% of the genetic variance for S/P ratio, mainly by SNPs ASGA0032113, H3GA0020505, and M1GA0009777. This same region was identified in the bivariate GWAS of S/P ratio and reproductive traits, with SNP H3GA0020505 explaining up to 10% (for NBA P1) of the genetic variance of reproductive performance. The heterozygote genotype at H3GA0020505 was associated with greater S/P ratio and NBA P1 (P = 0.06), and lower MUM P3 and NSB P3 (P = 0.07). Genomic prediction

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“…The h 2 estimates for PSY traits were also low. Noppibool et al (2017) reported h 2 of 0.07 ± 0.03 for NBA PSY and 0.13 ± 0.03 for NW PSY in purebred sows (Landrace and Yorkshire). Abell et al (2013) reported a h 2 of 0.11 ± 0.01 in a study including Landrace, Large White, and F1 sows.…”

Section: Heritabilitiesmentioning

confidence: 97%

Genetic and phenotypic indicator traits for reproductive performance in commercial sows

Sanglard¹,

Leticia²

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Genetic relationships between length of productive life and lifetime production efficiency in a commercial swine herd in Northern Thailand

Cited by 3 publications

References 27 publications

Genetic parameters for reproductive, longevity and lifetime production traits in Bísaro pigs

Genetic parameters for reproductive, longevity and lifetime production traits in Bísaro pigs

Genetic Analysis of Antibody Response to Porcine Reproductive and Respiratory Syndrome Vaccination as an Indicator Trait for Reproductive Performance in Commercial Sows

Genetic and phenotypic indicator traits for reproductive performance in commercial sows

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