Multivariate restricted maximum likelihood estimation of genetic parameters for growth, carcass and meat quality traits in French Large White and French Landrace pigs

Ducos, Alain; Bidanel, J. P.; Ducrocq, Vincent; Boichard, Didier; Groeneveld, Eildert

doi:10.1186/1297-9686-25-5-475

Cited by 37 publications

(18 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, the genetic standard deviation of LMP has increased from 1.50 to 2.26 for Landrace and from 1.67 to 3.02 for Duroc, which means that there is a considerably larger genetic variation for LMP measured with CT than measured with dissection. Estimated heritabilities for LMP in our study were consistent with the corresponding estimates (ranging from 0.41 to 0.68) reported by Ducos et al (1993), Sonesson et al (1998) and Gilbert et al (2007). All studies calculated an LMP based on a cutting procedure and the weight of lean meat for different premium cuts expressed as a percentage of the half carcass weight.…”

Section: Discussionsupporting

confidence: 90%

“…This might have yielded overestimated heritability for ADG1 in Duroc, as this breed had a full-sib group size of 1.3 and also higher heritability for this trait than Landrace, which had a full-sib group size of 1.1. The heritabilities for growth in the testing station period (ADG2) were of the same magnitude (ranging from 0.30 to 0.52) as those reported by Ducos et al (1993), de Vries et al (1994 and Suzuki et al (2005).…”

Section: Discussionsupporting

confidence: 62%

“…All studies calculated an LMP based on a cutting procedure and the weight of lean meat for different premium cuts expressed as a percentage of the half carcass weight. Traits associated with fatness generally have high heritability and estimated heritabilities for ultrasonic backfat ranged from 0.35 to 0.72 in some studies by Ducos et al (1993), Hoque et al (2007) and Solanes et al (2009).…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Genetic parameters between slaughter pig efficiency and growth rate of different body tissues estimated by computed tomography in live boars of Landrace and Duroc

Gjerlaug-Enger

Kongsro

Ødegård

et al. 2012

Animal

View full text Add to dashboard Cite

In this study, computed tomography (CT) technology was used to measure body composition on live pigs for breeding purposes. Norwegian Landrace (L; n 5 3835) and Duroc (D; n 5 3139) boars, selection candidates to be elite boars in a breeding programme, were CT-scanned between August 2008 and August 2010 as part of an ongoing testing programme at Norsvin's boar test station. Genetic parameters in the growth rate of muscle (MG), carcass fat (FG), bone (BG) and non-carcass tissue (NCG), from birth to ,100 kg live weight, were calculated from CT data. Genetic correlations between growth of different body tissues scanned using CT, lean meat percentage (LMP) calculated from CT and more traditional production traits such as the average daily gain (ADG) from birth to 25 kg (ADG1), the ADG from 25 kg to 100 kg (ADG2) and the feed conversion ratio (FCR) from 25 kg to 100 kg were also estimated from data on the same boars. Genetic parameters were estimated based on multi-trait animal models using the average information-restricted maximum likelihood (AI-REML) methodology. The heritability estimates (s.e. These results showed the difficulty in jointly improving LMP and ADG2. ADG2 was unfavourably correlated with FG (L: 0.84 and D: 0.72), thus indicating to a large extent that selection for increased growth implies selection for fatness under an ad libitum feeding regime. Selection for MG is not expected to increase ADG2, but will yield faster growth of the desired tissues and a better carcass quality. Hence, we consider MG to be a better biological trait in selection for improved productivity and carcass quality. CT is a powerful instrument in conjunction with breeding, as it combines the high accuracy of CT data with measurements taken from the selection candidates. CT also allows the selection of new traits such as real body composition, and in particular, the actual MG on living animals.

show abstract

Section: Discussionsupporting

confidence: 90%

Section: Discussionsupporting

confidence: 62%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Genetic parameters between slaughter pig efficiency and growth rate of different body tissues estimated by computed tomography in live boars of Landrace and Duroc

Gjerlaug-Enger

Kongsro

Ødegård

et al. 2012

Animal

View full text Add to dashboard Cite

show abstract

“…The negative genetic correlation between ADG1 and backfat measurements agrees with Hermesch et al (2000b), where pigs were fed ad libitum. The genetic correlations obtained in this study agree with literature values that were based on ad libitum feeding systems (Lo et al, 1992;Ducos et al, 1993;Mrode and Kennedy, 1993;Cameron and Curran, 1994).…”

Section: Fixed Factorssupporting

confidence: 90%

Estimation of genetic parameters for growth performance and carcass traits in Mukota pigs

Chimonyo

Dzama

2007

Animal

View full text Add to dashboard Cite

The objective of the study was to determine genetic parameters for growth and carcass traits in Mukota pigs, maintained on a fibrous diet. Records (n ¼ 1961) were obtained from a population housed at the University of Zimbabwe Farm (Harare, Zimbabwe) between January 1998 and August 2003. Backfat thickness was measured at 50 and 75 mm (K5 and K7.5), respectively. Carcass length (CL) was measured from the anterior edge of the first rib to the pubic bone using a measuring tape. Variance components were estimated using a model that accounted for direct, common environmental litter and maternal genetic effects, using average information restricted maximum likelihood. Heritability estimates for average daily gain from birth to weaning (ADGW) and average daily gain from weaning to 12 weeks (ADG1) were 0.15 and 0.27, respectively. Maternal genetic effects accounted for 2.6% of variation for ADG1. Heritability for average daily gain from 12 weeks to slaughter (ADG2) was 0.20. Common environmental litter effects accounted for 18% of phenotypic variance for cold dressed mass (CDM). Heritability estimates for CDM and CL were 0.32 and 0.62, respectively. Maternal genetic effects accounted for 10.5% of variance in CL. Heritability estimates for K5 and K7.5 were 0.64 and 0.40, respectively. The CDM was positively genetically correlated to K5, but negative to K7.5. The K5 and K7.5 had a high genetic correlation (0.88). Genetic correlations between ADGW and K5, K7.5 and CL were 0.30, 0.05 and 0.35, respectively. The existence of sufficient genetic variation makes genetic improvement for many growth and carcass traits in the Mukota breed possible through effective selection methods.

show abstract

“…On the other hand, the best linear unbiased prediction (BLUP) (Henderson, 1988) (Rothschild et al, 1979;Meyer and Thompson, 1984;Sorensen and Kennedy, 1984). It (Kennedy, 1990;Meyer, 1990Meyer, , 1991 (Hofer et al, 1992;Besbes, 1993;Ducos et al, 1993;Hagger, 1994;Mielenz et al, 1994;Poujardieu et al, 1994). As Among these selected females, the top 50% were selected for ES30 (first and second generations) or ES40 (third to fifth generations).…”

mentioning

confidence: 99%

Genetic parameters of body weight, egg production and shell quality traits in the Brown Tsaiya laying duck

Ys¹,

Rouvier²,

Poivey³

et al. 1995

Genet. Sel. Evol.

View full text Add to dashboard Cite

show abstract

Multivariate restricted maximum likelihood estimation of genetic parameters for growth, carcass and meat quality traits in French Large White and French Landrace pigs

Cited by 37 publications

References 2 publications

Genetic parameters between slaughter pig efficiency and growth rate of different body tissues estimated by computed tomography in live boars of Landrace and Duroc

Genetic parameters between slaughter pig efficiency and growth rate of different body tissues estimated by computed tomography in live boars of Landrace and Duroc

Estimation of genetic parameters for growth performance and carcass traits in Mukota pigs

Genetic parameters of body weight, egg production and shell quality traits in the Brown Tsaiya laying duck

Contact Info

Product

Resources

About