Effect of RYR1T Gene Polymorphism on the Initial Growth and Fattening and Slaughter Values of Polish Synthetic Line 990 Pigs Reared in Standardized Litters

Pietruszka, A.; Sosnowska, Anna

doi:10.2754/avb200877020217

Cited by 4 publications

(2 citation statements)

References 21 publications

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“…Studies of the effect of the RYR1 gene on growth, fattening and slaughter of pigs (Pietruszka & Sosnowska, 2008) concluded that early identification of animals by this gene will predict the body weight of animals in the initial period. The presence of differences in the sows' reproductive ability (it was found in our studies) suggests that early identification of animals by this gene will allow selection of pigs that will have higher levels of reproductive ability in the future.…”

Section: Discussionmentioning

confidence: 99%

DNA-type results of Landrace sows for RYR1-gene and its association with productivity

Tsereniuk

Bobrytska

Miroshnikova

et al. 2020

Regul. Mech. Biosyst.

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Recently the assessment of QTL genes has been a relevant focus of research. Among other genes, the RYR1 is one of the most important. Research on this gene for Landrace sows of Ukrainian selection has been insufficient. This fact confirms the need for our work. A total of 63 Landrace sows from different families were evaluated by reproductive qualities for two generations. A comprehensive assessment of the sows’ reproductive ability was performed using the SIRQS-index. Determination of polymorphism in the RYR1 gene in pigs was performed by using DNA-typing of animals. Genetic potential was calculated between two generations “mother-daughter”. By assessment of polymorphism of the RYR1 gene, it was found that 6.3% of the Landrace sows were the carriers for the mutant allele of the RYR1 gene. No animals with the RYR1nn genotype were detected. Accordingly, animals with the RYR1NN genotype accounted for 93.6%. The frequency of the N allele of the RYR1 gene was 0.97, the n frequency of the RYR1 gene allele was 0.03. Sows with RYR1NN genotype had a higher level of reproductive ability compared to the RYR1Nn genotype. RYR1NN genotype also had a higher level of genetic potential. The greatest progress was established between generations of Landrace sows which were carriers for the mutant allele. The highest values of this progress were by the NBA, the lowest – by the NW. On the contrary, there was regression between populations for part of the population (Landrace sows of Ukrainian selection of RYR1Nn genotype) by the all estimated indicators of reproductive ability. Sows that were free of the mutant allele of the RYR-1 gene had high SIRQS index. The phenotypic consolidation coefficients by the NBA were lower for sows free of the mutant allele than for its carrier. The advantage of sows free of the mutant allele of the RYR-1 gene over its carrier sows was established in almost all assessed indicators of reproductive ability. No significant differences in the level of consolidation of reproductive ability between sows with different allelic variants of the RYR-1 gene were established. The higher productive level of sows with RYR1NN genotype is reflected in the indicators of economic efficiency of production. It allows higher levels of profitability to be obtained and net profit to be increased by 1093 UAH compared to sows with RYR1Nn genotype. The further monitoring of the studied gene and the gradual elimination of carriers of the mutant allele is a promising direction in breeding work.

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Section: Discussionmentioning

confidence: 99%

DNA-type results of Landrace sows for RYR1-gene and its association with productivity

Tsereniuk

Bobrytska

Miroshnikova

et al. 2020

Regul. Mech. Biosyst.

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“…There are no beneficial effects of a smaller litter size on the size of the testicles or on semen characteristics (Klein 2005). In contrary, Flowers (2001) and Pietruszka (2009) found that the boars reared in smaller litters had larger testes and a better quality of semen compared to boars reared in larger litters. Those who favours small litter, suggests that animals in smaller litters are not exposed to high competition and uptake a lot more milk, which not only may increase weight gain but also intensify the production of supporting Sertoli cells in testicular tubules.…”

mentioning

confidence: 87%

Effect of litter size on pre-pubertal body weight and testicular volume in crossbred boars

Godara

Dutt

Gaur

et al. 2017

Indian J of Anim Sci

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The objective of this study was to examine the effect of litter size on pre-pubertal body weight and testicular volume in crossbred (Landrace × Desi) boars. The body weights of the piglets in small litter were significantly higher than large litter, at all age except weaning. At 22 weeks of age, boar reared in small litter was 10 kg heavier than larger litter. The testicular volume was significantly higher in all the piglets of small litter than piglets of larger litter at 18 and 22 weeks. However, at 14 weeks, piglets of small litter showed a tendency of higher testicular volume than the piglets of larger litter size. The results of this study suggest that piglets born and reared with small litter size are beneficial to obtain higher body weight and testicular volume around puberty. This may be helpful in early selection of boars for future use in artificial insemination.

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The influence of giant fibres on utility for production of massaged products of porcine muscle longissimus dorsi

Lachowicz

Żochowska-Kujawska

2010

Meat Science

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Effect of RYR1T Gene Polymorphism on the Initial Growth and Fattening and Slaughter Values of Polish Synthetic Line 990 Pigs Reared in Standardized Litters

Cited by 4 publications

References 21 publications

DNA-type results of Landrace sows for RYR1-gene and its association with productivity

DNA-type results of Landrace sows for RYR1-gene and its association with productivity

Effect of litter size on pre-pubertal body weight and testicular volume in crossbred boars

The influence of giant fibres on utility for production of massaged products of porcine muscle longissimus dorsi

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