A STUDY ON EFFECTS OF ESR GENE POLYMORPHISM ON REPRODUCTIVE TRAITS OF F1 HYBRID WILD BOAR (♂WILD BOAR X ♀VCNMS15) IN FARM HOUSEHOLDS

The objective of the paper was to evaluate the results of reproductive performance of sows in some elite breeding herds of the Large White breed included in experimental herds for the production of hyperprolific lines of dam breeds. The set consisted of 98 sows with the known genotypes of ESR, FSHâ and PRLR genes. The dendrogram shows that on the basis of their genetic outfit the sows can be divided into two clusters. The first cluster can be described as a cluster with marked dominance of HPL sows and the second cluster with marked dominance of the sows of basic herd. The first cluster consisted of individuals in which the preferred genotype AA of PRLR gene was not detected. As for FSHâ gene, the beneficial genotype BB was found out in 74.10% of sows. In ESR gene the beneficial genotype DD was recorded only in 11.10% of individuals. On average for the lifetime performance they delivered by 2.08 piglets more in all born piglets and by 1.96 piglets more in live-born piglets per litter. Differences in the reproductive traits between HPL sows and the sows of basic herd in the first cluster were statistically highly significant. On the contrary, genotype AA of PRLR gene was identified in all sows of the second cluster, 61.36% of animals possessed beneficial genotype BB of FSHâ gene. As for ESR gene, beneficial genotype DD was identified within the whole cluster in 31.82% of sows. In lifetime performance the HPL sows had on average by 1.10 individuals more in all born piglets and by 1.01 more in live-born piglets (statistically significantly higher values). The unambiguous expression of a positive effect of preferred genotypes of selected candidate genes failed to be confirmed by the results of statistical analyses testing the associations of candidate genes for pig reproduction with selected parameters of breeding value and prolificacy of sows.  

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Effects of BF Gene Polymorphism on the Reproductive Performance of Hybrid Polish Landrace X Polish Large White Sows

Acta veterinaria ◽

10.1515/acve-2016-0010 ◽

2016 ◽

Vol 66 (1) ◽

pp. 125-131

Author(s):

Dorota Napierała ◽

Maria Kawęcka ◽

Eugenia Jacyno ◽

Beata Matysiak ◽

Anita Kołodziej-Skalska

Keyword(s):

Gene Polymorphism ◽

Litter Size ◽

Reproductive Performance ◽

Reproductive Traits ◽

Specific Primers ◽

Large White ◽

Potential Relationship ◽

Pcr Rflp

AbstractThe aim of this study was to determine the potential relationship between variants of the BF gene and litter size in Polish Landrace x Polish Large White sows. To identify polymorphism within the BF gene, the PCR-RFLP method was applied, using specific primers and the SmaI enzyme. The researchers identified the presence of two alleles, T and C, with frequencies: 0.68 and 0.32, giving three genotypes with frequencies: 0.49, 0.37 and 0.14, respectively for TT, TC and CC. Analysis of relationships between the various genotypes of the BF gene and selected reproductive traits showed significant differences. Sows with TT genotype in the BF locus, gave birth to significantly more live piglets in the first litter (10.24) compared with sows with the CC genotype (7.13).

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Evaluation of growth and carcass performance of crossbred F1 between wild boar from Central Highland with Mong Cai and Soc pigs

Vietnam Journal of Biotechnology ◽

10.15625/1811-4989/18/1/15266 ◽

2020 ◽

Vol 18 (1) ◽

pp. 67-73

Author(s):

Hoang Nghia Son ◽

Le Thanh Long

Keyword(s):

Wild Boar ◽

Weight Ratio ◽

Backfat Thickness ◽

F1 Hybrid ◽

Wild Boars ◽

Slaughter Weight ◽

Central Highland ◽

Carcass Performance ◽

Meat Productivity ◽

F1 Generation

This study aimed to evaluate the growth and meat productivity of F1 crossbreds between Central Highland wild boards with Mong Cai and Soc pigs. The experiment was conducted on 2 groups of F1 pigs including F1 crossbred between native wild boars and Mong Cai pigs (RxM), F1 crossbred between of native wild boars and Soc (RxS) pigs, and 2 groups of Mong Cai pigs (M) and Soc pigs (S). The results demonstrated that the growth of F1 pig of RxM group was higher than RxS group after 3 months and 8 months of breeding. The carcass analysis showed that there was no difference in the slaughter weight of pigs between the RxM and M groups, as well as between the RxS and S groups. Pigs from the S group showed the lowest hanging weight (17.60 ± 0.52 kg) and lowest dressed weight (14.92 ± 0.49 kg) among the groups. There was no difference in the hanging weight and dressed weight among the RxM and M groups. However, the ratio of hanging weight (75.95 ± 0.23%) and dressed weight ratio (65.00 ± 0.18%) of RxM group is higher than M group (72.53 ± 0.44% and 62.24 ± 0.51%, respectively). The RxS group also had a higher percentage of hanging weight (74.28 ± 0.57%) and dressed weight (63.73 ± 0.48%) than the S group (71.10 ± 0.40% and 60.25 ± 0.50%, respectively). In this study, we also found that F1 hybrid pigs exhibited a lower backfat thickness than the M and S groups. In contrast, the backskin thickness increased in F1 hybrid groups. The above results showed that the hybridization of with Mong Cai and Soc pigs with Central Highland wild boars could improve the meat productivity of their F1 generation.

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Analysis of HEPH Gene Polymorphism on the X Chromosome for Identification of Wild Boar and Domestic Pig

Russian Journal of Genetics ◽

10.1134/s1022795420080062 ◽

2020 ◽

Vol 56 (9) ◽

pp. 1099-1108

Author(s):

V. N. Kipen ◽

E. V. Ivanova ◽

E. V. Snytkov ◽

A. N. Verchuk

Keyword(s):

Gene Polymorphism ◽

Wild Boar ◽

X Chromosome ◽

Domestic Pig

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Pulsed resources and climate-induced variation in the reproductive traits of wild boar under high hunting pressure

Journal of Animal Ecology ◽

10.1111/j.1365-2656.2009.01579.x ◽

2009 ◽

Vol 78 (6) ◽

pp. 1278-1290 ◽

Cited By ~ 63

Author(s):

Servanty Sabrina ◽

Gaillard Jean-Michel ◽

Toïgo Carole ◽

Brandt Serge ◽

Baubet Eric

Keyword(s):

Wild Boar ◽

Reproductive Traits ◽

Hunting Pressure ◽

Pulsed Resources ◽

Induced Variation

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Performance Traits of Puławska Pigs Depending on Polymorphism in the RYR1 Gene (C.1843C>T)

Annals of Animal Science ◽

10.2478/aoas-2019-0017 ◽

2019 ◽

Vol 19 (2) ◽

pp. 319-326 ◽

Cited By ~ 1

Author(s):

Magdalena Szyndler-Nędza ◽

Katarzyna Ropka-Molik ◽

Aurelia Mucha ◽

Tadeusz Blicharski ◽

Marek Babicz

Keyword(s):

Gene Polymorphism ◽

Reproductive Traits ◽

Backfat Thickness ◽

Test Results ◽

Ryr1 Gene ◽

Hair Roots ◽

On Farm ◽

The Relationship ◽

Daily Gain ◽

Age At First Farrowing

AbstractThe objective of the study was to determine the relationship between polymorphism in the RYR1 gene (rs344435545) and on-farm test results (fattening, slaughter and reproductive traits) of pigs maintained in conservation herds. the experiment covered 76 boars and 291 gilts kept in 33 herds. animals aged 150–210 days were weighed and P2 and P4 backfat thickness as well as P4 loin muscle depth (P4m) were measured with an ultrasonic device. standardised daily gain (g/day) of the animals and carcass meat percentage (%) were determined. the following reproductive traits of sows were also collected: number of teats, age at first farrowing, dates of next farrowing, number of piglets born alive and weaned at 21 days of age. Hair roots were sampled from the gilts, sows and boars to determine the RYR1 gene polymorphism. it was found that only 3% of the animals in the analysed population had TT genotypes, whereas 28.34% were heterozygous (CT). this polymorphism (CT) was carried by 28.34% of the animals. when analysing the effect of this polymorphism on fattening and slaughter traits in live animals, it was found that sows with TT genotype, compared to the others, were characterised by higher backfat thickness only (P≤0.05). In the boars with CC and CT genotypes, no significant differences were noted between the values of the analysed traits. for reproductive traits of the sows, it was observed that females with TT genotype weaned more piglets until 21 days of age (P≤0.05).

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Effect of the oestrogen receptor (ESR) gene on reproductive traits of Large White, White Meaty and Landrace pigs

Czech Journal of Animal Science ◽

10.17221/4165-cjas ◽

2011 ◽

Vol 50 (No. 6) ◽

pp. 249-253 ◽

Cited By ~ 3

Author(s):

R. Omelka ◽

M. Bauerová ◽

J. Mlynek ◽

B. Buchová ◽

D. Peškovičová ◽

...

Keyword(s):

Oestrogen Receptor ◽

Reproductive Traits ◽

Positive Association ◽

Large White ◽

Pcr Rflp ◽

Negative Effect ◽

Breeding Farms ◽

Esr Gene

We investigated the effect of oestrogen receptor (ESR) gene on total number of born (TNB), number of born alive (NBA) and number of weaned (NW) piglets in Large White (LW), White Meaty (WM) and Landrace (L) sows from six Slovak breeding farms. Detection of ESR (Pvu II) genotypes was performed by the PCR-RFLP method. The frequencies of favourable B allele in LW, WM and L were 0.33, 0.25 and 0.08, respectively. We found a highly significant effect of ESR locus on NW (P ≤ 0.01) in LW, however, we observed a negative effect of BB genotype on the trait. In WM, a positive association of B allele with TNB, NBA and NW was found but the differences were not confirmed statistically. A highly significant effect of ESR locus on TNB, NBA and NW (P ≤ 0.01) was identified only in L breed. We found an increase of +0.62 ± 0.18 (TNB), +0.65 ± 0.18 (NBA) and +0.51 ± 0.16 (NW) pigs per copy of B allele.  

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