Estimation of Genetic Associations between Production and Meat Quality Traits in Duroc Pigs

Cabling, Meriam M.; Kang, Hao; Lopez, Bryan Irvine; Jang, Mi; Kim, H. S.; Nam, Ki-Chang; jae-gwan, choi; Seo, Kang Seok

doi:10.5713/ajas.14.0783

Cited by 40 publications

(30 citation statements)

References 15 publications

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“…; Cabling et al . ). Therefore, we conclude that SNPs can influence skeletal muscle development and lead to significant production trait differences by changing the secondary structure of MEG3 .…”

Section: Discussionmentioning

confidence: 97%

Long non‐coding MEG3 is a marker for skeletal muscle development and meat production traits in pigs

Wang

Sun

et al. 2018

Animal Genetics

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Long non-coding RNA maternally expressed gene 3 (lncRNA MEG3) plays an important role in mammalian muscle development. Our previous transcriptome study showed that lncRNA MEG3 is differentially expressed during postnatal skeletal muscle development in pigs. The objective of the present study was to analyse the role of lncRNA MEG3 in prenatal and postnatal skeletal muscle development and investigate the association of MEG3 with meat production traits in pigs. We investigated the sequence conservation and temporal-spatial expression of lncRNA MEG3 and identified its core promoter and single nucleotide polymorphisms (SNPs). Our results show that MEG3 is conserved among pig, human and mouse and is expressed in a tissue-specific manner with high expression levels in kidney and leg and dorsal muscles. In addition, MEG3 is more abundant in prenatal muscle compared to postnatal muscle, and its expression peaks at gestational day 60. Notably, we observed almost no expression 40 days after birth. The core promoter of MEG3 is located upstream of the transcription initiation site between À447 and À40 bp. In our SNP linkage disequilibrium and association analyses, four of the 10 potential polymorphism sites were found to be associated with corrected back fat thickness and age to reach 100 kg (rs325797437, rs344501106, rs81286029 and rs318656749). In addition, three haplotypes were found to be associated with differences in corrected age to reach 100 kg (AAAT, AAAT/GGGC, GAAT/GGGC). Our results indicate that MEG3 regulates skeletal muscle development and is a candidate gene for improving meat production traits in pigs.

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Section: Discussionmentioning

confidence: 97%

Long non‐coding MEG3 is a marker for skeletal muscle development and meat production traits in pigs

Wang

Sun

et al. 2018

Animal Genetics

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“…Details of trait measurements were the same as Cabling et al. (). All sows produced purebred offspring, where replacement boars and gilts were usually recruited.…”

Section: Methodsmentioning

confidence: 99%

Genetic parameters and trends for production traits and their relationship with litter traits in Landrace and Yorkshire pigs

Lopez

Song

Seo

2018

Animal Science Journal

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Genetic parameters and trends in the average daily gain (ADG), backfat thickness (BF), loin muscle area (LMA), lean percentage (LP), and age at 90 kg (D90) were estimated for populations of Landrace and Yorkshire pigs. Additionally, the correlations between these production traits and litter traits were estimated. Litter traits included total born (TB) and number born alive (NBA). The data used for this study were obtained from eight farms during 1999 to 2016. Analyses were carried out with a multivariate animal model to estimate genetic parameters for production traits while bivariate analyses were performed to estimate the correlations between production and litter traits. The heritability estimates were 0.52 and 0.43 for ADG; 0.54 and 0.45 for BF; 0.25 and 0.26 for LMA; 0.54 and 0.48 for LP; and 0.56 and 0.46 for D90 in the Landrace and Yorkshire breeds, respectively. The ADG and D90 showed low genetic correlation with BF and LP. The LMA had -0.40, -0.32, 0.49, and 0.39 genetic correlations with ADG, BF, LP, and D90, respectively. Genetic correlations between production and litter traits were generally low, except for the correlations between LMA and TB (-0.23) in Landrace and ADG and TB (-0.16), ADG and NBA (-0.18), D90 and TB (0.19), and D90 and NBA (0.20) in Yorkshire. Genetic trends in production traits were all favorable except for LMA.

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“…The WHC determined was slightly modified method of the Cabling et al [10]. Each treatment 5 g was put in a conical tube covered with cotton, and cover filter paper up close the lid.…”

Section: Water Holding Capacity (Whc)mentioning

confidence: 99%

Quality properties of various dietary fibers as isolated soy protein (ISP) replacements in pork emulsion systems

Park¹,

Oh²,

Kim³

et al. 2020

J Anim Sci Technol

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This study aimed to investigate the possibility of replacing the isolated soy protein (ISP) as a binding agent for wheat, oat, and bamboo shoot dietary fibers. Dietary fibers and ISP were added to manufacturing process of pork emulsion, respectively, for investigate quality properties. Moisture contents of pork emulsion added wheat fiber-treated group was significantly higher than ISP-treated group (p < 0.05), and protein contents of dietary fiber-treated group were significantly lower than ISP-treated group (p < 0.05). Raw pork emulsion CIE a* value of oat, bamboo shoot fiber-treated group were significantly lower than ISP-treated group (p < 0.05). After cooking pork emulsion CIE L* value of dietary fiber-treated group were significantly higher than ISP-treated group (p < 0.05). Raw pork emulsion water holding capacity (WHC) of wheat, oat fiber-treated group were significantly higher than ISP-treated group (p < 0.05), and cooked pork emulsion WHC of wheat, bamboo shoot fiber-treated group were higher than ISP-treated group (p < 0.05). Cooking loss of ISP-treated group was significantly higher than dietary fiber-treated group (p < 0.05), and viscosity of ISP-treated group was lower than dietary fiber-treated group. Hardness of ISP-treated group was significantly lower than dietary fiber-treated group (p < 0.05); however, cohesiveness of ISP-treated group was significantly higher than dietary fiber-treated group (p < 0.05). In conclusion, dietary fiber added as binding agent to manufacturing process of pork emulsion was suitable to replacing ISP.

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Estimation of Genetic Associations between Production and Meat Quality Traits in Duroc Pigs

Cited by 40 publications

References 15 publications

Long non‐coding MEG3 is a marker for skeletal muscle development and meat production traits in pigs

Long non‐coding MEG3 is a marker for skeletal muscle development and meat production traits in pigs

Genetic parameters and trends for production traits and their relationship with litter traits in Landrace and Yorkshire pigs

Quality properties of various dietary fibers as isolated soy protein (ISP) replacements in pork emulsion systems

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