Development of intra- and intermuscular adipose tissue in growing Large White and Meishan pigs

Mourot, Jacques; Kouba, Maryline

doi:10.1051/rnd:19990145

Cited by 35 publications

(29 citation statements)

References 17 publications

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“…This is consistent with previous findings indicating that the ubiquitously expressed ME1 is positively associated with the deposition of porcine intramuscular adipose (r = 0.9, P < 0.01) (Mourot and Kouba, 1999). Expression patterns of MDH1, MDH2 and ME1 genes In summary, our results suggest that MDH1, MDH2 and ME1 are important for porcine adipose deposition and are therefore promising candidate genes for the pig fat mass trait.…”

Section: Resultssupporting

confidence: 92%

Short Communication Differential expression analysis of porcine MDH1, MDH2 and ME1 genes in adipose tissues

Zhou¹,

Li²,

Li³

et al. 2012

Genet. Mol. Res.

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ABSTRACT. Malate dehydrogenases 1 and 2 (MDH1 and MDH2), and malic enzyme 1 (ME1) play important roles in the Krebs cycle for energy metabolism. The mRNA abundance changes of MDH1, MDH2 and ME1 genes were measured across six different adipose tissues from the leaner Landrace and fatty Rongchang pig breeds using quantitative real-time PCR. The mRNA of MDH1, MDH2 and ME1 was more abundant in fatty Rongchang pigs than in leaner Landrace pigs. In both breeds, females exhibited higher adipocyte volume and mRNA abundance of MDH1, MDH2 and ME1 compared with males. These values were higher in the subcutaneous adipose tissue compared with visceral adipose tissue. Furthermore, mRNA abundance changes of MDH1, MDH2 and ME1 have the remarked significant positive correlation with adipocyte volume across the six adipose tissue types. We conclude that there are breed-, gender-and tissue-specific expression patterns of ME1, MDH1 and MDH2, which highlight their potential as candidate genes for selecting for fat volume in pigs.

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Section: Resultssupporting

confidence: 92%

Short Communication Differential expression analysis of porcine MDH1, MDH2 and ME1 genes in adipose tissues

Zhou¹,

Li²,

Li³

et al. 2012

Genet. Mol. Res.

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“…Moreover, Lazo et al [24] reported that intramuscular fat content in LD muscle dramatically increased during the growth period, suggesting that for this criterion, the CR pig was superior to the other local breeds. The higher intramuscular fat content in CR pigs was consistent with a fatter carcass and could also be explained by a higher lipogenic capacity in intra muscular adipose tissues as suggested for backfat adipose tissue [29].…”

Section: Effect Of Breed On Growth Performance and Carcass Traitsupporting

confidence: 67%

A comparison of carcass and meat quality characteristics of Creole and Large White pigs slaughtered at 150 days of age

Renaudeau¹,

Hilaire²,

Mourot

2005

Anim. Res.

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-The effects of breed in combination with sex (female vs. castrated male) on carcass composition and meat quality characteristics were studied in a factorial arrangement of treatments involving 32 Large White (LW) and 32 Creole (CR) pigs. The pigs were slaughtered at 150 d of age; the slaughter weights were 90 and 60 kg for LW and CR pigs, respectively, which corresponded to the practical commercial slaughter weight in the French West Indies for both breeds. No interaction between breed and sex was found for all criteria studied. Creole pigs had a lower killing out percentage (82.9 vs. 80.9%, P < 0.001) and higher backfat thickness at 150 d of age (17.5 vs. 11.3 mm, P < 0.001) than the LW pigs. Higher pH 24 h post mortem were observed in the semimembranosus (SM), longissimus dorsi (LD), and semispinalis (SS) muscles of the CR than of the LW breeds (P < 0.01). The drip and cooking losses of meat measured in the LD muscle were lower in the CR than in the LW pigs (5.9 vs. 10.6% and 30.2 vs. 33.1%, respectively, P < 0.10). Creole pigs showed higher intramuscular fat percentage in LD muscle (3.45 vs. 2.46%, P < 0.001), more saturated (40.0 vs. 37.9%) and monounsaturated (40.6 vs. 38.4%) fatty acids and lower concentration of C18:2 and C18:3 in backfat than LW pigs (17.3 vs. 21.1% and 0.96 vs. 1.31%, respectively). Whatever the breed, the females (F) were leaner (P < 0.05) than the castrated males (C). The females showed higher drip and cooking losses in LD muscle and lower pH 24 h post mortem in LD and SM muscles. The saturated fatty acid concentrations were lower in F than in C. These results emphasise the reduced carcass performance of CR breed in intensive management and its superiority as far as the criteria of technological and sensory qualities of the fresh meat are concerned. ces deux génotypes. L'interaction entre le génotype et le sexe n'a été significative pour aucun des critères étudiés. Le rendement de la carcasse est inférieur (P < 0,001) et l'épaisseur de lard dorsale mesurée à 150 jours d'âge est plus élevée (P < 0,001) chez le porc CR comparé au LW (respectivement, 82,9 vs. 80,9 % et 17,5 vs. 11,3 mm). Des pH ultimes supérieurs ont été mesurés au niveau des muscles semimembranosus (SM), longissimus dorsi (LD) et semispinalis (SS) chez le porc CR (P < 0,01). Les pertes d'eau au ressuyage et à la cuisson mesurées sur le muscle LD sont plus faibles (P < 0,10) chez le CR (respectivement, 5,9 vs. 10,6 % et 30.2 vs. 33.1 %). Les teneurs en lipides intramusculaire du LD (3,45 vs. 2,46 %) et en acides gras saturés (40,0 vs. 37,9 %) et monoinsaturés (40,6 vs. 38,4 %) de la bardière sont supérieurs (P < 0,01) chez le CR. En revanche, les teneurs en C18:2 et C18:3 sont significativement supérieures chez le LW (respectivement, 21,1 vs. 17,3 % et 1,31 vs. 0,96 %). Indépendamment du type génétique, les femelles (F) sont significativement plus maigres que les mâles castrés (C). Les pertes d'eau au ressuyage et à la cuisson du muscle LD sont plus élevées et le pH ultime mesuré au niveau du LD ou du SM est p...

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“…The research of Dvořáková et al (2012) indicated allele C was significantly associated with back fat depth and allele G in exon 3 of the FTO with muscling traits in commercial pigs. Moreover, different genotypes, such as H-FABP , leptin receptor (Tyra et al, 2011), and sterol regulatory element binding transcription factor 1 gene (Chen et al, 2008) It is well known that the order of adipose deposition is initially subcutaneous, followed by intermuscular and finally at intramuscular adipose sites (Mourot and Kouba, 1999). In other words, more IMF is deposited in the later stages of animal development.…”

Section: Discussionmentioning

confidence: 99%

Effects of breed, postnatal development, and nutrition on mRNA expression of the FTO gene in porcine muscle and its relationship with intramuscular fat deposition

Tao¹,

Men²,

Deng³

et al. 2013

CZECH J ANIM SCI

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ABSTRACT:The effects of breed, development, and nutrition on mRNA expression of the fat mass and obesityassociated gene (FTO) and its relationship with intramuscular fat (IMF) content in porcine muscle (m. longissimus dorsi; m.l.d.) were estimated. Purebred Jinhua, Zhongbai, Yorkshire, Duroc, Duroc × Zhongbai (DZ), and Duroc × Yorkshire × Landrace (DYL) pigs were used to investigate the effect of breed. Pigs weighing 2.5, 10, 20, 40, 60, and 100 kg were selected to study the effects of different stages of development. To study the effect of nutrition, four diets were selected: corn-soybean (CS), CS with 1.2% conjugated linoleic acid (CLA) or 0.05% creatine monohydrate (CMH), and barley-soybean (BS). All eighty animals were slaughtered, and m.l.d. samples were collected to examine FTO mRNA expression and IMF content. Results showed that breed significantly affected FTO mRNA expression and IMF content. FTO mRNA expression in the studied pigs was in the order: Zhongbai and Yorkshire > Duroc and DZ > Jinhua and DYL. The IMF content ordered by breed was Duroc > DZ > DYL > Jinhua > Zhongbai > Yorkshire. Both FTO mRNA expression and IMF content increased with age of the pigs, with the greatest difference seen between 100 kg pigs and all other weights. In the study, none of the four diets had a significant effect (P > 0.05) on FTO mRNA expression or IMF content. The study demonstrated that FTO mRNA expression increased with increasing body weight and was significantly affected by the breed of pigs. The results showed that FTO mRNA expression had an inconsistent correlation with IMF content between breeds and developmental ages.

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Development of intra- and intermuscular adipose tissue in growing Large White and Meishan pigs

Cited by 35 publications

References 17 publications

Short Communication Differential expression analysis of porcine MDH1, MDH2 and ME1 genes in adipose tissues

Short Communication Differential expression analysis of porcine MDH1, MDH2 and ME1 genes in adipose tissues

A comparison of carcass and meat quality characteristics of Creole and Large White pigs slaughtered at 150 days of age

Effects of breed, postnatal development, and nutrition on mRNA expression of the FTO gene in porcine muscle and its relationship with intramuscular fat deposition

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