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. 1975 Dec 1;16(4):492–502. doi: 10.1186/BF03546642

5α-Androstenone in Fat from Boars Selected for Rate of Gain and Thickness of Back Fat, and from Boars Used in Artificial Insemination Service

5α-androstenon i fett fra råner selektert for veksthastighet og ryggspekktykkelse og fra råner brukt i kunstig sædoverføring

Øystein Andresen 1,2,✉, Håvard Bakke 1,2
PMCID: PMC8396101  PMID: 1211326

Abstract

Large variations in the level of 5α-androstenone in fat from different boars have been found. No significant difference in the level of 5α-androstenone was detected in fat from boars selected for high rate of gain and low back fat (HP-line), low rate of gain and high degree of fatness (LP-line) and a control group maintained without deliberate selection (GL-line). In boars used in artificial insemination service relatively high levels of 5α-androstenone in fat were observed, and in these animals a significant (P < 0.05) positive regression of 5α-androstenone level on age was found. Positive but non-significant regression coefficients were found between number of services which the boars had performed and level of 5α-androstenone in fat from the same animals.

Keywords: 5α-androstenone, fat, boar taint, selection

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References

  1. Ahmad N, Gower D B. The biosynthesis of some androst-16-enes from C21 and C19 steroids in boar testicular and adrenal tissue. Riochem. J. 1968;108:233–241. doi: 10.1042/bj1080233. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Andresen, Ø.: 5α-androstenone in peripheral plasma of pigs, diurnal variation in boars, effects of intravenous HCG administration and castration. Acta endocr. (Kbh.) 1975α, 78, 385–391. [DOI] [PubMed]
  3. Andresen, Ø.: A radioimmunoassay for 5α-androst-16-en-3-one in porcine adipose tissue. Acta endocr. (Kbh.) 1975b, 79, 619–624. [DOI] [PubMed]
  4. Aulstad D. In vivo estimation of carcass composition in young boars. II. The use of ultrasonic measurements of back fat thickness. Acta agric. scand. 1969;19:189–196. doi: 10.1080/00015126909433186. [DOI] [Google Scholar]
  5. Bakke H. Feittmobilisering hos gris, (Lipid mobilization in pigs. Husdyrforsøksmøtet 1975. Aktuelt fra Landbruksdepartementets opplysningstjeneste. 1975;1:336–339. [Google Scholar]
  6. Beery K E, Sink J D. Isolation and identification of 3α-hydroxy-5α-androst-16-ene and 5α-androst-16-en-3-one from porcine adipose tissue. J. Endocr. 1971;51:223–224. doi: 10.1677/joe.0.0510223. [DOI] [PubMed] [Google Scholar]
  7. Booth W D. Changes with age in the occurrence of C19 steroids in the testis and submaxillary gland of the boar. J. Reprod. Fertil. 1975;42:459–472. doi: 10.1530/jrf.0.0420459. [DOI] [PubMed] [Google Scholar]
  8. Carlstrøm K, Malmfors B, Lundstrøm K, Edqvist L-E, Garne B. The effect of HCG on blood plasma levels of 5α-androstenone and testosterone in the boar. Swedish J. agric. Res. 1975;5:15–21. [Google Scholar]
  9. Claus, R.: Bestimmung von Testosteron und 5α-Androst-16-en-3-on, einem Ebergeruchsstoff, bei Schweinen. (Estimation of testosterone and 5α-androst-16-en-3-one, an odourus compound, in pigs). Thesis. Fakultät für Landwirtschaft und Gartenbau. Technishen Hochschule, München 1970.
  10. Fuchs G. The correlation between the 5α-Androst-16-ene-3-one content and the sex odour intensity in boar fat. Swedish J. agric. Res. 1971;1:233–237. [Google Scholar]
  11. Gower D B. 16-unsaturated C19 steroids. A review of their chemistry, biochemistry and possible physiological role. J. Steroid Biochem. 1972;3:45–103. doi: 10.1016/0022-4731(72)90011-8. [DOI] [PubMed] [Google Scholar]
  12. Gower D B, Ahmad N. Studies on the biosynthesis of 16-dehydro steroids. The metabolism of (4-14C)-pregnenolone by boar adrenal and testis tissue in vitro. Biochem. J. 1967;104:550–556. doi: 10.1042/bj1040550. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Gower D B, Harrison F A, Heap R B. The identification of C19-16-unsaturated steroids and estimation of 17-oxosteroids in boar spermatic vein plasma and urine. J. Endocr. 1970;47:357–368. doi: 10.1677/joe.0.0470357. [DOI] [PubMed] [Google Scholar]
  14. Katkov T, Booth W D, Gower D B. The metabolism of 16-androstenes in boar salivary glands. Biochim. biophys. Acta (Amst.) 1972;270:546–556. doi: 10.1016/0005-2760(72)90120-8. [DOI] [PubMed] [Google Scholar]
  15. Lund-Larsen, T. & H. Bakke: Growth hormone and somatomedin activities in lines of pigs selected for rate of gain and thickness of back fat. Acta agric. scand. In press.
  16. Lundstrøm K, Asp-Malmfors B, Hansson I. A simple biopsy technique for obtaining fat and muscle samples from pigs. Swedish J. agric. Res. 1973;3:211–214. [Google Scholar]
  17. Malmfors, B. & Ø. Andresen: Relationship between boar taint intensity and concentration of 5α-androst-16-en-3-one in boar peripheral plasma and back fat. Acta agric. scand. 1975. In press.
  18. Malmfors B, Hansson I. Incidence of boar taint in Swedish Landrace and Yorkshire boars. Livest. Prod. Sci. 1974;1:411–420. doi: 10.1016/0301-6226(74)90070-0. [DOI] [Google Scholar]
  19. Melrose D R, Reed H CB, Patterson R LS. Androgen steroids associated with boar odour as an aid to the detection of oestrus in pig artificial insemination. Brit. vet. J. 1971;127:497–502. doi: 10.1016/S0007-1935(17)37337-2. [DOI] [PubMed] [Google Scholar]
  20. Newell J A, Tucker L H, Stinson G C, Bowland J P. Influence of late castration and diethylstilbestrol implantation on performance of boars and on incidence of boar taint. Canad. J. Animal. Sci. 1973;53:205–210. doi: 10.4141/cjas73-034. [DOI] [Google Scholar]
  21. Patterson, R. L. S.: 5α-Androst-16-ene-3-one: Compound responsible for taint in boar fat. J. Sci. Food Agric. 1968a, 19, 31–38.
  22. Patterson, R. L. S.: Identification of 3α-hydroxy-5α-androst-16-ene as the musk odour component of boar submaxillary salivary gland and its relationship to the sex odour taint in pork meat. J. Sci. Food Agric. 1968b, 19, 434–438.
  23. Prelog V, Ruzicka L. Über zwei moschusartig riechende Steroide aus Schweinetestes-Extrakten. (Investigations on two musk smelling steroids in extracts of pig testes) Helv. chim. Acta. 1944;27:61–66. doi: 10.1002/hlca.19440270108. [DOI] [Google Scholar]
  24. Reed H C B, Melrose D R, Patterson R LS. Androgen steroids as an aid to the detection of oestrus in pig artificial insemination. Brit. vet. J. 1974;130:61–67. doi: 10.1016/S0007-1935(17)35991-2. [DOI] [PubMed] [Google Scholar]
  25. Saat Y A, Gower D B, Harrison F A, Heap R B. Studies on the biosynthesis in vivo and excretion of 16-unsaturated C19 steroids in the boar. Biochem. J. 1972;129:657–663. doi: 10.1042/bj1290657. [DOI] [PMC free article] [PubMed] [Google Scholar]
  26. Sink J D. Theoretical aspects of sex odor in swine. J. Theor. Biol. 1967;17:174–180. doi: 10.1016/0022-5193(67)90027-6. [DOI] [PubMed] [Google Scholar]
  27. Standal, N.: Preliminary results from a selection experiment with pigs. Proc. NJF-Congr., Copenhagen 1967, pp. 98–101.
  28. Standal N, Void E, Trygstad O, Foss I. Lipid mobilization in pigs selected for leanness or fatness. Anim. Prod. 1973;16:37–42. [Google Scholar]
  29. Thompson R H, Jr, Pearson A M, Banks K A. Identification of some C19-Δ16 steroids contributing to sex odor in pork. J. agric. Food Chem. 1972;20:185–189. doi: 10.1021/jf60180a020. [DOI] [Google Scholar]
  30. Walstra P. Fattening of young boars: quantification of negative and positive aspects. Livest. Prod. Sci. 1974;1:187–196. doi: 10.1016/0301-6226(74)90058-X. [DOI] [Google Scholar]

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