Impact of the halothane gene on muscle quality and pre-slaughter deaths in Western Canadian pigs

被引:46
|
作者
Murray, AC [1 ]
Johnson, CP [1 ]
机构
[1] Agr & Agri Food Canada, Res Ctr, Lacombe, AB T4L 1W1, Canada
关键词
halothane gene; PSS; malignant hyperthermia; pork quality; swine deaths;
D O I
10.4141/A97-122
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
The genotype with respect to the point mutation at position 1843 of the ryr-1 gene (halothane gene) and longissimus muscle quality of 1006 pigs in two Western Canadian packing plants was assessed to determine the frequency of this mutation within the commercial population and the relationship of genotype to the frequency of PSE (pale, soft, exudative) pork. The frequencies of nn (homozygous carrier), Nn (heterozygous carrier) and NN (homozygous normal) pigs within the commercial population were 0.3, 9.4 and 90.3%, respectively. Based on the subjective pork quality standards of Agriculture and Agri-Food Canada, the frequencies of paler-than-normal (colour score <3) and darker-than-normal pork (colour score >3) were 21.7 and 11.2%, respectively. The frequencies of soft, exudative pork (structure score <3) and firm dry pork (structure score >3) were 14.8 and 7.6%, respectively. The frequency of pale loin colour was 80 and 20% higher for Nn than for NN pigs in the two packing plants, whereas the frequency of dark pork was unaffected by genotype. Nn pigs exhibited a twofold higher incidence of soft, exudative pork than did NN pigs, but because of their very low frequency in the commercial kill, had a very small impact on the overall incidence of soft, exudative pork. Removing this mutation from the pig population would have very little impact on the frequency of pale or soft, exudative pork within the two packing plants involved in this study. Determination of the halothane genotype of 401 pigs, arriving dead or dying at the packing plants, indicated that pigs of the nn, Nn and NN genotypes were responsible for 27.7, 25.2 and 47.1% of deaths. The frequency of deaths within the nn, Nn and NN genotypes was estimated to be 9.2, 0.27 and 0.05%, respectively. Approximately 90% of the PSE condition in Western Canada is caused by factors other than the halothane gene, but this gene has a major negative influence on the frequency of pre-slaughter deaths.
引用
收藏
页码:543 / 548
页数:6
相关论文
共 50 条
  • [1] PRE-SLAUGHTER STRESS AND THE QUALITY OF PORK MEAT IN PIGS WITH DIFFERENT RESPONSE TO HALOTHANE
    POLTARSKY, J
    BULLA, J
    ZIVOCISNA VYROBA, 1985, 30 (09): : 807 - 816
  • [2] THE INFLUENCE OF PRE-SLAUGHTER AND SLAUGHTER STRESSES ON MEAT QUALITY IN PIGS
    PETRICEK, M
    SOLTES, J
    KOVAC, L
    HETENYI, L
    ZIVOCISNA VYROBA, 1986, 31 (09): : 813 - 817
  • [3] INFLUENCE OF PRE-SLAUGHTER TREATMENT ON MEAT QUALITY IN PIGS
    NIELSEN, NJ
    ACTA AGRICULTURAE SCANDINAVICA, 1979, : 91 - 102
  • [4] Combined effects of pre-slaughter treatments and lairage time on carcass and meat quality in pigs of different halothane genotype
    Costa, LN
    Lo Fiego, DP
    Dall'Olio, S
    Davoli, R
    Russo, V
    MEAT SCIENCE, 2002, 61 (01) : 41 - 47
  • [5] Effects of halothane gene and pre-slaughter treatment on meat quality and welfare from two pig crosses
    Fàbrega, E
    Manteca, X
    Font, J
    Gispert, M
    Carrión, D
    Velarde, A
    Ruiz-de-la-Torre, JL
    Diestre, A
    MEAT SCIENCE, 2002, 62 (04) : 463 - 472
  • [6] Meat quality: Impact of various pre-slaughter conditions
    Karabasil, N.
    Boskovic, T.
    Vicic, I
    Cobanovic, N.
    Dimitrijevic, M.
    Teodorovic, V
    60TH INTERNATIONAL MEAT INDUSTRY CONFERENCE MEATCON2019, 2019, 333
  • [7] The Impact of Pre-Slaughter Stress on Beef Eating Quality
    Loudon, Kate M. W.
    Tarr, Garth
    Lean, Ian J.
    Polkinghorne, Rod
    McGilchrist, Peter
    Dunshea, Frank R.
    Gardner, Graham E.
    Pethick, David W.
    ANIMALS, 2019, 9 (09):
  • [8] Incidence of pre-slaughter stress on meat quality of non sensible pigs
    Franck, M
    Figwer, P
    Jossel, A
    Poirel, M
    Khazzaka, A
    Pasteur, X
    REVUE DE MEDECINE VETERINAIRE, 2003, 154 (03) : 199 - 204
  • [9] The effects of fear of humans and pre-slaughter handling on the meat quality of pigs
    Hemsworth, PH
    Barnett, JL
    Hofmeyr, C
    Coleman, GJ
    Dowling, S
    Boyce, J
    AUSTRALIAN JOURNAL OF AGRICULTURAL RESEARCH, 2002, 53 (04): : 493 - 501
  • [10] EFFECT OF PRE-SLAUGHTER WEIGHT ON CARCASS QUALITY IN PIGS OF IRISH ORIGIN
    Mykhalko, Oleksandr
    Povod, Mykola
    Gutyj, Bogdan
    Trybrat, Ruslan
    Kalynychenko, Halyna
    Gill, Michael
    Kravchenko, Olena
    Karatieieva, Olena
    SCIENTIFIC PAPERS-SERIES D-ANIMAL SCIENCE, 2023, 66 (01):