Frequency of the malignant hyperthermia gene in the South African pig industry

Show simple item record Soma, Prashilla Van Marle-Koster, Este Frylinck, L. 2015-02-10T07:38:25Z 2015-02-10T07:38:25Z 2014
dc.description.abstract Porcine stress syndrome (PSS) is a genetic disorder caused by a recessive mutation in the halothane (HAL) gene and results in sudden death of pigs when placed under stress during transport and pre-slaughtering conditions. Animals that are affected by this mutation tend to develop pale, soft and exudative (PSE) meat, which results in an economic loss. In South Africa, the frequency of the number of carriers (Nn) and recessive (nn) pigs has increased by 21% to 30% from 2000 to 2003. This study aims to determine the prevalence of the malignant hyperthermia (MH) gene in breeding boars at nucleus or seed-stock level, and the prevalence at commercial abattoirs across the South African pig industry. Results indicate a low number of carriers (Nn = 17) and recessive (nn = 1) pigs at seed-stock level. For commercial abattoirs, 96.4% of the pigs tested did not carry the mutation. The low incidence of the MH mutation from breeding stock should eliminate a contributory factor to PSE meat in South Africa. Transport over long distances to abattoirs may ultimately have an effect on pork obtained even from non-carriers of the MH mutation. en_ZA
dc.description.librarian hb2015 en_ZA
dc.description.uri en_ZA
dc.identifier.citation Soma, P, Van Marle-Koster, E & Frylinck, L 2014, 'Frequency of the malignant hyperthermia gene in the South African pig industry', South African Journal of Animal Science, vol. 44, no. 4., pp. 384-387. en_ZA
dc.identifier.issn 0375-1589 (print)
dc.identifier.issn 2221-4062 (online)
dc.identifier.other 10.4314/sajas.v44i4.8
dc.language.iso en en_ZA
dc.publisher South African Society for Animal Science en_ZA
dc.rights Copyright resides with the authors in terms of the Creative Commons Attribution 2.5 South African Licence. en_ZA
dc.subject Halothane gene en_ZA
dc.subject Ryanodine receptor en_ZA
dc.subject Seed stock herds en_ZA
dc.subject Malignant hyperthermia (MH) en_ZA
dc.subject Porcine stress syndrome (PSS) en_ZA
dc.subject Pale, soft and exudative (PSE) meat en_ZA
dc.title Frequency of the malignant hyperthermia gene in the South African pig industry en_ZA
dc.type Article en_ZA

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