Genetic admixture analysis in Prestice Black-Pied pigs

Vrtková, Irena

doi:10.5194/aab-58-115-2015

Cited by 13 publications

(7 citation statements)

References 20 publications

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“…In 1992 the breed was included in the genetic resources and belongs to the National program of genetic resources, coordinated by European Regional Focal Point for Farm Animal Genetic Resources (Dostálová et al, 2012;Vrtková, 2015). PBP is suitable mainly for outdoor or organic breeding systems.…”

Section: Introductionmentioning

confidence: 99%

Effect of Farm on Productive and Reproductive Performance in Sows of Prestice Black-pied Pig

Nevrkla¹,

Václavková²,

Hadaš³

et al. 2016

Acta Univ. Agric. Silvic. Mendelianae Brun.

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The aim of the study was to evaluate productive and reproductive performance of Prestice Black-Pied sows including losses of piglets from birth to weaning in conditions of two farms. The experiment involved one hundred sows of Prestice Black-Pied pig from the 1 st to the 7 th parity (50 from farm A and 50 from farm B). The evaluation of productive parameters revealed a highly statistically significant difference (P ≤ 0.001) between gilts of the observed farms in percentage of lean meat. Backfat thickness was 0.19 cm lower in gilts from the farm A, which is a very highly statistically significant difference (P ≤ 0.001). The evaluation of reproductive performance showed, that age at the time of the first insemination and farrowing was significantly higher (P ≤ 0.05) in gilts from the farm A compared to gilts from the farm B by 38 days on average. The analysis also indicates that there was no significant difference in length of gestation, total number of piglets and numbers of live-born and reared piglets between the sows of the evaluated farms. A highly statistically significant difference (P ≤ 0.01) was found in number of stillborn piglets. Interval length was significantly longer (P ≤ 0.05) in sows from the farm A, by 14.29 days. The evaluation of losses of piglets revealed a significant difference (P ≤ 0.05) between the farms in favor of piglets from the farm A.

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Section: Introductionmentioning

confidence: 99%

Effect of Farm on Productive and Reproductive Performance in Sows of Prestice Black-pied Pig

Nevrkla¹,

Václavková²,

Hadaš³

et al. 2016

Acta Univ. Agric. Silvic. Mendelianae Brun.

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“…Liver samples were obtained from seven healthy Prestice Black‐Pied pigs (Vrtkova, ) aged 9–12 weeks and weighing 25–35 kg (35.7 ± 6.1 kg, mean ± SD). Five piglets were male and two female.…”

Section: Methodsmentioning

confidence: 99%

Stereological analysis of size and density of hepatocytes in the porcine liver

et al. 2016

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The porcine liver is frequently used as a large animal model for verification of surgical techniques, as well as experimental therapies. Often, a histological evaluation is required that include measurements of the size, nuclearity or density of hepatocytes. Our aims were to assess the mean number-weighted volume of hepatocytes, the numerical density of hepatocytes, and the fraction of binuclear hepatocytes (BnHEP) in the porcine liver, and compare the distribution of these parameters among hepatic lobes and macroscopic regions of interest (ROIs) with different positions related to the liver vasculature. Using disector and nucleator as design-based stereological methods, the morphometry of hepatocytes was quantified in seven healthy piglets. The samples were obtained from all six hepatic lobes and three ROIs (peripheral, paracaval and paraportal) within each lobe. Histological sections (thickness 16 μm) of formalin-fixed paraffin-embedded material were stained with the periodic acid-Schiff reaction to indicate the cell outlines and were assessed in a series of 3-μm-thick optical sections. The mean number-weighted volume of mononuclear hepatocytes (MnHEP) in all samples was 3670 ± 805 μm (mean ± SD). The mean number-weighted volume of BnHEP was 7050 ± 2550 μm . The fraction of BnHEP was 4 ± 2%. The numerical density of all hepatocytes was 146 997 ± 15 738 cells mm of liver parenchyma. The porcine hepatic lobes contained hepatocytes of a comparable size, nuclearity and density. No significant differences were identified between the lobes. The peripheral ROIs of the hepatic lobes contained the largest MnHEP with the smallest numerical density. The distribution of a larger MnHEP was correlated with a larger volume of BnHEP and a smaller numerical density of all hepatocytes. Practical recommendations for designing studies that involve stereological evaluations of the size, nuclearity and density of hepatocytes in porcine liver are provided.

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“…At the end of the 19th century, the local pig breeds (mostly, Yorkshire, Sussex, Berkshire, and Essex British breeds) were crossed with boars imported into the Bohemia territory [ 1 , 2 ]. Subsequently, pig breeds including Wessex Saddleback (in 1952), Pietrain (in 1966), Welsh (in 1985), and Landrace (in 1986) were also used in crossing of the PBP breed [ 3 ]. However, during the WWII, the first bottleneck effect on genetic variation of pigs was observed after the ban on breeding black-spotted breeds of pigs was tightened even when their breeding was secretly maintained.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the Genetic Diversity of a Local Pig Breed Using Pedigree and SNP Data

Krupa

Moravčíková

Krupová

et al. 2021

Genes

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Herein, the genetic diversity of the local Přeštice Black-Pied pig breed was assessed by the simultaneous analysis of the pedigree and single nucleotide polymorphism (SNP) data. The information about sire line, dam, date of birth, sex, breeding line, and herd for 1971 individuals was considered in the pedigree analysis. The SNP analysis (n = 181) was performed using the Illumina PorcineSNP60 BeadChip kit. The quality of pedigree and SNPs and the inbreeding coefficients (F) and effective population size (Ne) were evaluated. The correlations between inbreeding based on the runs of homozygosity (FROH) and pedigree (FPED) were also calculated. The average FPED for all animals was 3.44%, while the FROH varied from 10.81% for a minimum size of 1 Mbp to 3.98% for a minimum size of 16 Mbp. The average minor allele frequency was 0.28 ± 0.11. The observed and expected within breed heterozygosities were 0.38 ± 0.13 and 0.37 ± 0.12, respectively. The Ne, obtained using both the data sources, reached values around 50 animals. Moderate correlation coefficients (0.49–0.54) were observed between FPED and FROH. It is necessary to make decisions that stabilize the inbreeding rate in the long-term using optimal contribution selection based on the available SNP data.

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Genetic admixture analysis in Prestice Black-Pied pigs

Cited by 13 publications

References 20 publications

Effect of Farm on Productive and Reproductive Performance in Sows of Prestice Black-pied Pig

Effect of Farm on Productive and Reproductive Performance in Sows of Prestice Black-pied Pig

Stereological analysis of size and density of hepatocytes in the porcine liver

Assessment of the Genetic Diversity of a Local Pig Breed Using Pedigree and SNP Data

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