Relationship between individual DNA methylation percentage differences and carcass traits in pigs

2005 ◽  
Vol 2 (3) ◽  
pp. 187-193
Author(s):  
Jiang Cao-De ◽  
Deng Chang-Yan ◽  
Xiong Yuan-Zhu
Keyword(s):  
Dna Methylation ◽  
Carcass Traits ◽  
Carcass Weight ◽  
Backfat Thickness ◽  
Hybrid Performance ◽  
Large White ◽  
Blood Samples ◽  
Lean Meat ◽  
Methylation Difference ◽  
Percentage Difference

AbstractIn order to investigate the effects of DNA methylation on pig carcass traits, the methylation-sensitive amplified polymorphism technique (MSAP) was adopted to amplify DNA from blood samples taken from 77 F1 hybrids of Large White×Meishan crosses. A total of 15 carcass traits were tested. Results showed that means of internal fat rate (IFR), lean meat percentage (LMP) and ratio of lean meat versus fat meat (RLF) were significantly different (P<0.05) among five levels of general individual methylation difference (GIMDP); means of carcass weight (CW), IFR, backfat thickness at buttock (BFT3), average backfat thickness (ABF), carcass length to the first rib (CLR) and carcass length to the first neck vertebra (CLN) were also significantly different (P<0.05) among five levels of special individual methylation percentage difference (SIMDP), while means of 15 carcass traits were not significantly different (P>0.05) among five levels of neutral individual methylation percentage difference (NIMDP). Of all traits that were significantly affected by SIMPD, CW, ABF and BFT3 increased, IFR and backfat thickness at shoulder (BFT1) decreased, while CLR and bone percentage (BP) fluctuated with the SIMDP increase. The regressions between SIMDP and IFR, BFT1, BFT3 and ABF were significant (P<0.05). It is concluded that DNA methylation can be applied as a marker to related studies in pigs; positive methylation sites were superior to negative methylation sites in predicting hybrid performance, and methylation differences should be maintained at specific levels for different traits to improve the productivity of pigs.

scholarly journals Genetic Trend and Relationship of Meatiness Traits of Different Breed Pigs Raised in Lithuania

2009 ◽  
Vol 63 (1-2) ◽  
pp. 66-69
Author(s):  
Ramutis Klimas ◽  
Asta Klimienė
Keyword(s):  
Correlation Analysis ◽  
Live Weight ◽  
Backfat Thickness ◽  
Genetic Trend ◽  
Large White ◽  
Lean Meat ◽  
Relationship Of ◽  
Observation Period

Genetic Trend and Relationship of Meatiness Traits of Different Breed Pigs Raised in Lithuania The purpose of this study was to determine the genetic trend of leanness for purebred pigs, and to determine the relations between meatiness traits, age and live weight of animals. The estimation of meatiness traits (backfat and loin lean thickness, lean meat percentage) of purebred Lithuanian White (LW), Large White (La.W), Yorkshire (Y), Landrace (L), Duroc (D) and Pietrain (P) pigs grown in breeding centres was evaluated by apparatus Piglog 105, during 2000-2006. In 2006, the average lean meat percentage of purebred pigs in the breeding centres of Lithuania ranged from 56.9% (LW) to 59.5% (D). During the observation period (2000-2006), the genetic trend of the leanness of LW was 6.9% (P < 0.001), La.W and L, respectively, was 2.2 and 2.5% (P < 0.01), D was 1.6% (P < 0.05), Y was 0.2% and P was 0.6%. A higher genetic trend of the leanness in the LW pig breed can be explained by import of English La.W boars. Correlation analysis showed that lean meat percentage of pigs is more related to backfat thickness (r = from -0.84 to -0.95, P < 0.001), than to loin lean thickness (r = from 0.11 to 0.30). Live weight of pigs had more influence on mentioned meatiness traits than age.

scholarly journals The visfatin (NAMPT; PBEF1) gene polymorphisms and associations with meat performance traits in three pig breeds kept in the Czech Republic

2009 ◽  
Vol 54 (No. 10) ◽  
pp. 443-447 ◽  
Author(s):  
J. Zrůstová ◽  
A. Knoll ◽  
T. Urban ◽  
S. Čepica
Keyword(s):  
Average Daily Gain ◽  
Backfat Thickness ◽  
Large White ◽  
Nicotinamide Phosphoribosyltransferase ◽  
The Czech Republic ◽  
Lean Meat ◽  
Meat Content ◽  
The Difference ◽  
Daily Gain

Visfatin encoded by the <I>NAMPT</I> gene <I>(nicotinamide phosphoribosyltransferase,</I> formerly also known as <I>PBEF – pre-B cell colony-enhancing factor</I>) is suggested to play a role in lipid metabolism and pathophysiology of diabetes mellitus type 2. A new microsatellite <I>SCZ004</I> was detected within intron 9 of the <I>NAMPT</I> gene. In Czech Large White (<I>n</I> = 95) frequencies of alleles <I>282, 286, 287, 299</I>, and <I>304</I> were 0.02, 0.39, 0.07, 0.04, and 0.48, respectively. Allele <I>286</I> was predominant also in Landrace (<I>n</I> = 11) and Black Pied Prestice (<I>n</I> = 11) breeds. Association analysis was carried out between previously reported SNP AM999341:g.669T>C in intron 9 of the <I>NAMPT</I> gene and backfat thickness, average daily gain and lean meat content in Czech Large White (<I>n</I> = 215), Black Pied Prestice (<I>n</I> = 96) and Landrace (<I>n</I> = 105). The <I>CC</I> genotype was associated with higher backfat thickness (<I ≤ 0.01) in Black Pied Prestice, however in Czech Large White <I>CC</I> was associated with lower backfat thickness when compared to <I>TT</I> and <I>CT</I> genotypes (<I ≤ 0.05). In Czech Large White, <I>CC</I> genotype was associated with higher lean meat content when compared to <I>CT</I> (not significant) and <I>TT</I> genotype (<I ≤ 0.05) while in Landrace <I>CC</I> had the lowest lean meat content when compared to <I>CT</I> and <I>TT</I> genotypes but only the difference between <I>CC</I> and <I>CT</I>T was statistically significant (<I ≤ 0.05). In Black Pied Prestice no association with lean meat content was found. Average daily gain was not associated with the SNP in any breed.

Effect of zeranol on fat deposition and carcass traits in beef heifers

1992 ◽  
Vol 72 (4) ◽  
pp. 965-968 ◽  
Author(s):  
B. D. King ◽  
R. D. Bergen ◽  
J. J. McKinnon ◽  
R. D. H. Cohen ◽  
R. N. Kirkwood
Keyword(s):  
Key Words ◽  
Carcass Traits ◽  
Fat Deposition ◽  
Carcass Weight ◽  
Beef Heifers ◽  
Marbling Score ◽  
Meat Yield ◽  
Lean Meat ◽  
Beef Heifer

Non-pregnant beef heifers implanted with zeranol at birth and at 100 and 200 d of age were fed a finishing ration for 78 d to slaughter at 21–22 mo of age. Rate of fat deposition, grade fat and marbling score were less (P < 0.05) and carcass weight, rib-eye area and lean-meat yield were greater (P < 0.05) for implanted heifers than for non-implanted heifers. Key words: Zeranol, ultrasound, fat deposition, carcass, beef heifer

RELATIONSHIPS AND VARIATION AMONG CERTAIN LAMB CARCASS TRAITS

1965 ◽  
Vol 45 (1) ◽  
pp. 37-42 ◽  
Author(s):  
W. J. Boylan ◽  
M. E. Seale
Keyword(s):  
Sex Differences ◽  
Carcass Traits ◽  
Carcass Weight ◽  
Backfat Thickness ◽  
Longissimus Dorsi ◽  
Area Percent

Data obtained over a 2-year period on 120 lamb carcasses provided estimates of the covariation among the traits of loin eye area (longissimus dorsi), backfat thickness, percent shoulder, percent rack, percent loin, percent leg, and dressing percent.Percent leg, percent shoulder, and loin eye area decreased with an increase in fatness while percent loin, percent rack, and dressing percent increased. Carcass weight accounted for about 46% and 31% respectively of the variation in loin eye area and dressing percent, but less than 10% for any other traits.An examination of the variation among the traits showed that highly significant (P <.01) year differences occurred for loin eye area, percent shoulder, percent rack, percent leg, and dressing percent, but not for backfat thickness and percent loin.Breed differences were found to exist between Suffolk and line M lambs for all traits studied. Sex differences were found for backfat thickness, percent shoulder, percent loin, and dressing percent. However, most of these differences occurred between ewes and wethers or ewes and rams.

scholarly journals The use of performance test parameters for selection of gilts before their placement into breeding

2011 ◽  
Vol 51 (No. 6) ◽  
pp. 253-261 ◽  
Author(s):  
N. Kernerová ◽  
J. Václavovský ◽  
V. Matoušek ◽  
Z. Hanyková
Keyword(s):  
Performance Test ◽  
Performance Testing ◽  
Live Weight ◽  
Regression Function ◽  
Backfat Thickness ◽  
Daily Weight Gain ◽  
Large White ◽  
Lean Meat ◽  
Meat Content ◽  
Richards Function

The objectives of the paper were to evaluate carcass value in reared gilts on the basis of carcass analysis during the station test of purebred progeny of pigs and ultrasonically with Sonomark-100 or Piglog-105 instruments in the framework of valid methodology for performance testing, and to verify a pos-sibility of prediction of backfat thickness and/or average daily weight gain since birth and lean meat content of gilts as the elements of objectification for the evaluation of their body condition. In total 54 gilts of two breeds were evaluated: the dam breed Czech Large White and the sire breed Czech Large White &ndash; sire line. Four-parameter Richards function was used for growth evaluation. The regression function y = 63.870 &ndash; 0.447 bt<sub>1</sub> &ndash; 0.510 bt<sub>2</sub> + 0.128 MLLT was applied in ultrasonic instruments for the calculation of lean meat content. We calculated linear regression functions for the conversion of performance testing parameters (gain from birth, average backfat thickness and lean meat content) from live weight on the day of measurement per live weight declared during selections in gilts. &nbsp;

scholarly journals Genetic parameters of production traits of Hungarian Pig populations evaluated in separate and joint (field and station) tests

2002 ◽  
Vol 45 (4) ◽  
pp. 375-386
Author(s):  
L. Csató ◽  
I. Nagy ◽  
J. Farkas ◽  
L. Radnóczi
Keyword(s):  
Animal Model ◽  
Genetic Parameters ◽  
Genetic Correlations ◽  
Lumbar Vertebrae ◽  
Backfat Thickness ◽  
National Database ◽  
Production Traits ◽  
Large White ◽  
Muscle Area ◽  
Lean Meat

Abstract. Genetic parameters for various backfat measurements (BF1FT, BF2FT, BF3FT, BF1ST, BF2ST, BF3ST), average backfat thickness (ABFFT), loin muscle area (LMAFT), fat depth between the 3rd and 4th lumbar vertebrae (SF1FT), fat depth between the 3rd and 4th ribs (SF2FT), lean meat percentage (LMPFT) were estimated. The analysis was based on the national database of the field and station tests, using animal model in Hungarian Large White (LW), Hungarian Landrace (LR) breeds, and A-line of the Ka-Hyb hybrid (MLW) between May 1996–February 2001. Heritability for BFFT traits ranged between 0.15–0.35. Similar interval was received for ABFFT (0.20–0.36) but reasonably higher estimates were observed in BFST traits (0.41–0.75). SFFT heritabilies (0.18–0.37) were close to those of BFFT traits while somewhat higher values were found in LMPFT (0.26–0.45) and LMAFT (0.31–0.58). Genetic correlations were generally positive among all fat depth measurements and negative with LMPFT. Genetic correlations between LMAFT-LMPFT were positive but contradictory results were found between LMAFT and fat depth measurements. The genetic correlations between BFFT traits and their station test counterparts (BFST) varied between 0.12–0.64.

scholarly journals Genetische Fundierung von AutoFOM-Merkmalen

2001 ◽  
Vol 44 (2) ◽  
pp. 167-180
Author(s):  
E. Tholen ◽  
H. Brandt ◽  
H. Henne ◽  
F.-J. Stork ◽  
K. Schellander
Keyword(s):  
Genetic Correlation ◽  
Carcass Traits ◽  
Large White ◽  
Legal Information ◽  
Lean Meat ◽  
Northwest Germany ◽  
Slaughter Pigs ◽  
Pig Carcasses ◽  
Year 2000 ◽  
Carcass Cuts

Abstract. Title of the paper: Genetic foundation of AutoFOM-traits Since the beginning of the year 2000 the payment System of pig carcasses in some slaughter houses in northwest Germany is based on the recordings of the fully automated carcass Classification system AutoFOM. Besides legal information 'estimated lean meat percentage' relative exact details of the weights of important valuable cuts are available. Genetic parameters of the AutoFOM lean carcass cut information, ham-, chop-, Shoulder- and belly weights as well as lean meat percentage of the belly cut were estimated. Using the field data of the pig breeding organisations BHZP (n = 2224) and SNW (n = 3601) the estimated heritabilties of these carcass cuts vary between 0.13 and 0.27 (BHZP) and 0.13 and 0.31 (SNW), respectively. The estimated heritabilities of the AutoFOM carcass traits of station-tested pigs were more pronounced for the dam lines German Landrace and Large White (n = 1693) and Piétrain Al-boars mated to Fl sows (n = 1053). The estimates ranged from 0.27 to 0.59 (dam lines) and 0.05 to 0.40 (Pi Al-boars), respectively. Using the records of Station tested purebred Pietrain pigs (n = 1693) the heritabilities of the AutoFOM carcass cuts did not exceed 0.10. The genetic correlation between the different AutoFOM carcass traits exceed the absolute value of 0.8. In a similar way, the genetic correlation between the "estimated lean meat percentage" used in the test Station and the AutoFOM carcass traits were close to unity. We concluded that AutoFOM traits of slaughter pigs provide a useful information for the selection of Al-boars. Moreover, with regard to the Station testing of dam lines AutoFOM carcass informations derived from AutoFOM are a useful supplementation. Because of the low heritability, only a marginal additional benefit could be expected for the genetic ranking of Pi-boars using AutoFOM carcass cut records of purebred Station tested progenies.

scholarly journals Effects of encapsulated sodium butyrate and phytogenic on growth performance, carcass traits and health of growing-finishing pigs

2020 ◽  
Vol 50 (11) ◽  
Author(s):  
Caio Abércio da Silva ◽  
Ana Maria Bridi ◽  
Cleandro Pazinato Dias ◽  
Marco Aurélio Callegari ◽  
Ernani Caixeta Nunes ◽  
...  
Keyword(s):  
Sodium Butyrate ◽  
Average Daily Gain ◽  
Live Weight ◽  
Feed Additives ◽  
Carcass Weight ◽  
Backfat Thickness ◽  
Health Conditions ◽  
Growth Promoter ◽  
Lean Meat ◽  
Daily Gain

ABSTRACT: The aim of this study was to evaluate two feed additives, one based on encapsulated sodium butyrate (Adimix® Precision) (AD) and the other, a phytogenic (Apex® 5) (AX), associated or not with an antimicrobial growth promoter (tylosin) during the growth and finishing phases on performance, carcass characteristics and health conditions. A total of 300 barrows and females were distributed in six treatments in a randomized block design with ten replicates. The treatments consisted of a negative control (NC), positive control (PC) (tylosin), AD (encapsulated sodium butyrate), AX (phytogenic), PC+AD (tylosin+encapsulated sodium butyrate), and PC+AX (tylosin+phytogenic). The performance (live weight, daily feed intake, average daily gain and feed conversion) and carcass data (carcass weight, backfat thickness, loin depth, lean meat on the carcass) were submitted to ANOVA plus Tukey’s test, and the health conditions (occurrence of diseases, culling, and spontaneous deaths) were analyzed by χ2. Animals of the AD group had the highest average daily gain (ADG) over the evaluation period and the highest live weight at 120, 140, and 164 days of age, in addition to the highest carcass weight compared to NC and PC groups. The AX treatment increased the ADG in growth phase II and the live weight at 120 and 140 days of age in relation to the NC. The PC+AX group had a higher final live weight compared to the NC and PC groups and higher carcass weight in relation to the NC group. There was no difference among treatments for backfat thickness, percentage of lean meat in the carcass, or occurrence of diseases and deaths. The inclusion of encapsulated sodium butyrate (AD treatment) was effective in increasing ADG, final live weight, and carcass weight compared to supplementation with tylosin (PC treatment), as was the inclusion of a phytogenic (AX treatment) on FC compared to the PC.

scholarly journals Association analysis of interleukin-18 gene with performance traits in Czech Large White pigs

2012 ◽  
Vol 60 (5) ◽  
pp. 97-102 ◽  
Author(s):  
Pavla Chalupová ◽  
T. Urban ◽  
A. Knoll
Keyword(s):  
Average Daily Gain ◽  
Backfat Thickness ◽  
Breeding Value ◽  
Interleukin 18 ◽  
Large White ◽  
Lean Meat ◽  
Meat Content ◽  
Pcr Rflp ◽  
Performance Traits ◽  
Daily Gain

This research focused on recently described MspI and VspI SNPs in interleukin-18 gene and their association with selected performance traits (backfat thickness; lean meat content, average daily gain from birth, average daily gain in test, breeding value for average daily gain, for lean meat content, for reproduction and total breeding value) in a population of 344 Czech Large White sows. Both SNPs were genotyped by PCR-RFLP. In this work, these polymorphisms were associated with backfat thickness and lean meat content. Animals with genotype AA (MspI SNP) had significantly (P < 0.05) lower backfat thickness and higher lean meat content (0.77 ± 0.02 and 62.16 ± 0.23, resp.) compared to GA (0.83 ± 0.02 and 61.40 ± 0.18, resp.). Animals with genotype AA (VspI SNP) had significantly (P < 0.05) lower lean meat content and higher backfat thickness (61.10 ± 0.36 and 0.85 ± 0.03, resp.) compared to GA (62.02 ± 0.16 and 0.77 ± 0.02, resp.). No association between IL-18 polymorphisms and other performance traits was found. Our study revealed that IL-18 could be candidate gene for backfat thickness and lean meat content in pigs.

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