Effect of inbreeding on lean meat percentage and average daily gain in Hungarian Landrace pigs

Vígh, Z.; Gyovai, P.; Csató, László; Bokor, Árpád; Farkas, J.; Radnóczi, László; Komlósi, István; Nagy, István

doi:10.5194/aab-51-541-2008

Cited by 5 publications

(5 citation statements)

References 15 publications

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“…The influence of the inbreeding coefficient on meat productivity indicators is described not only in sheep but also in pigs (Vígh et al, 2008) or beef cattle (Lozada-Soto et al, 2021). There was a statistically significant effect of the inbreeding coefficient on the development of MLD and the thickness of back fat in the work dealing with the effect of inbreeding on meat yield in the Dorper sheep breed, which corresponds to our results.…”

Section: Discussionsupporting

confidence: 87%

Inbreeding in the Zwartbles breed population and its influence on meat production in the Czech Republic

Filipčík,

Falta,

Sokolová

et al. 2023

Arch. Anim. Breed.

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Abstract. The aim of this study was to estimate the inbreeding coefficient in the Zwartbles sheep population in the Czech Republic, as well as to investigate the effect of inbreeding on meat yield indicators. The analysis used data on the entire population since 1997, with the original database containing 13 150 animals. In this population, the average inbreeding coefficient is 3.64 %. There is a significant increase in inbreeding – from zero values to more than 4 % between 1997 and 2021. The effect of inbreeding on the weight of the animals at 100 d of age, the weight at bonitation prior to breeding, the thickness of the musculus longissimus dorsi (MLD), the thickness of the subcutaneous back fat, and the fleshiness of the animals were all evaluated. The value of the inbreeding coefficient had a statistically significant effect on weight at 100 d, MLD thickness, and back fat thickness. A negative relationship between inbreeding and all of these parameters was found when the inbreeding coefficient was increased by 1 %, resulting in a 60.2 g weight reduction at 100 d, 0.06 mm reduction in MLD thickness, and 0.013 mm reduction in back fat thickness.

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Section: Discussionsupporting

confidence: 87%

Inbreeding in the Zwartbles breed population and its influence on meat production in the Czech Republic

Filipčík,

Falta,

Sokolová

et al. 2023

Arch. Anim. Breed.

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“…On the contrary, 10 % increase of the inbreeding coefficient decreased the number of days up to 104.5 kg by 2.1 days. Similarly the growth traits of Hungarian Landrace pigs shoved only a very slight decrease as a result of inbreeding (Vígh et al 2008). The results of the different studies examining the effect of inbreeding on carcass traits (e.g.…”

Section: Inbreeding Depression and Genetic Trendsmentioning

confidence: 93%

Genetic parameters, genetic trends and inbreeding depression of growth and carcass traits in Pannon terminal line rabbits

Nagy¹,

Gyovai²,

Radnai³

et al. 2013

Arch. Anim. Breed.

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Abstract. Genetic parameters, inbreeding depression and genetic trends were estimated for average daily gain between the ages of 5-10 weeks and thigh muscle volume (measured in vivo with computerized tomography) in a group of 22 098 Pannon terminal line rabbits born between 2006 and 2011 and reared in 3 396 litters. The data sets were analysed with bi-variate animal models taking pedigree completeness (complete generation equivalent) into account. By 2011, all rabbits were inbred and the average inbreeding coefficient and complete generation equivalent of the population were 7.69 % and 11.89 %, respectively. Estimated heritability was moderate both for average daily gain (0.23±0.02) and thigh muscle volume (0.25±0.03). Litter effects were low for both traits (0.16±0.00 and 0.09±0.01 respectively). The genetic correlation coefficient estimate between average daily gain and thigh muscle volume was also low (0.02±0.08). Significant inbreeding depression (per 10 % inbreeding) was only detected for average daily gain (0.57 g/d). The estimated annual selection response was substantial both for average daily gain and thigh muscle volume (1.49 g/d and 5.84 cm3, respectively), proving the efficiency of the breeding programme.

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“…In pigs, many studies suggested that an increase of the inbreeding coefficient resulted in a significant reduction of reproductive traits, including the TNB, the number of alive piglets at birth (NBA), and gestation length ( Farkas et al 2007 ). In addition, the increased inbreeding negatively affected growth and production performance, such as lean meat percentage, average daily gain, and growth traits at pre- or weaning ( Vigh et al 2008 ; Gowrimanokari et al 2019 ). More recent studies provided significant evidence that TNB was associated with ID in a Korean native pig population ( Kim et al 2019 ) and an Iberian pig population ( Casellas et al 2019 ).…”

Section: Introductionmentioning

confidence: 99%

Estimate of inbreeding depression on growth and reproductive traits in a Large White pig population

Zhuo

Ning

Zhou

et al. 2022

G3 Genes|Genomes|Genetics

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With the broad application of genomic information, SNP-based measures of estimating inbreeding have been widely used in animal breeding, especially based on runs of homozygosity (ROH). Inbreeding depression is better estimated by SNP-based inbreeding coefficients than pedigree-based inbreeding in general. However, there are few comprehensive comparisons of multiple methods in pigs so far, to some extent limiting their application. In this study, to explore an appropriate strategy for estimating inbreeding depression on both growth traits and reproductive traits in a Large White pig population, we compared multiple methods for the inbreeding coefficient estimation based on both pedigree and genomic information. This pig population for analyzing the influence of inbreeding was from a pig breeding farm in the Inner Mongolia of China. There were 26,204 pigs with records of age at 100 kg (AGE) and back-fat thickness at 100 kg (BF), and 6,656 sows with reproductive records of the total number of piglets at birth (TNB), and the number of alive piglets at birth (NBA), and litter weight at birth. Inbreeding depression affected growth and reproductive traits. The results indicated that pedigree-based and SNP-based inbreeding coefficients had significant effects on AGE, TNB, and NBA, except for BF. However, only SNP-based inbreeding coefficients revealed a strong association with inbreeding depression on litter weight at birth. ROH-based methods showed a slight advantage over other methods in the correlation analysis of inbreeding coefficients and estimation of inbreeding depression. Furthermore, our results demonstrated that the model-based approach (RZooRoH) could avoid miscalculations of inbreeding and inbreeding depression caused by inappropriate parameters, which had a good performance on both AGE and reproductive traits. These findings might improve the extensive application of ROH analysis in pig breeding and breed conservation.

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Effect of inbreeding on lean meat percentage and average daily gain in Hungarian Landrace pigs

Cited by 5 publications

References 15 publications

Inbreeding in the Zwartbles breed population and its influence on meat production in the Czech Republic

Inbreeding in the Zwartbles breed population and its influence on meat production in the Czech Republic

Genetic parameters, genetic trends and inbreeding depression of growth and carcass traits in Pannon terminal line rabbits

Estimate of inbreeding depression on growth and reproductive traits in a Large White pig population

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