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Further reading

Agrocomp. 2010. Anaesthesia System for Piglet Castration. (Accessed 2010-12-19).

Algers, B., 1992. Natürliches Verhalten - ein natürlicher Begriff? Berliner und Münchener Tierärztliche Wochenschrift 105. Heft 11, 372-374.

Algers, B., 2008. Naturligt beteende - Lagen och biologin I: Djuren är väl också människor -en antologi om hälsa och välbefinnande i djurens och människornas värld. Red: Algers, Gunnarsson and Nordenfelt. Kap. 6. Institutionen för husdjurens miljö och hälsa, SLU. Rapport 20. Skara. 59-69.

Andersson, H.K., Hullberg, A., Malmgren, L., Lundström, K., Rydhmer, L. and Squires, J., 1999. Sexual maturity in entire male pigs. Environmental effects, relations to skatole level and sexual maturity. Animal Science, 49, 103-112.

Bonneau, M., 2009. PIGCAS WP4. Report on recommendations for research and policy support, pp. 1-22.

Bonneau, M., Dufour, R., Chouvet, C., Roulet, C., and Squires, E. J., 1994. The effects of immunization against Luteinizing Hormone-Releasing Hormone on performance, sexual development, and levels of boar taint-related compounds in intact male pigs. Journal of Animal Science, 72, 14-20.

Bonneau, M., Kempster, A.J., Claus, R., Claudi-Magnussen, C. Diestre, A., Tornberg, E., Walstra, P., Chevillon, P. Weiler, U., and Cook, G. L., 2000a. An international study on the importance of androstenone and skatole for boar taint: I. Presentation of the programme and measurement of boar taint compounds with different analytical procedures. Meat Science, 54, 251-259.

Christiansen, J.P., 2004. Pig rearing - A handbook. [Svinehold - en grundbog] Landbrugsforlaget, Aarhus, Denmark.

Claus, R., Weiler, U. and Herzog, A., 1994. Physiological aspects of androstenone and skatole formation in the boar : A review. Meat Science, 38, 289-305.

Cronin, G.M., Dunshea, F.R., Butler, K.L., McCauly, I., Barnett, J.L. and Hemsworth, P.H., 2003. The effects of immune- and surgical- castration on the behaviour and consequently growth of group-housed, male finisher pigs. Appl. Anim. Beh. Sci. 81, 111-126.

da Silva, J.A., 1999. Sex hormones and glucocorticoids: interactions with the immune system. Annals of the New York Academy of Sciences, 876: 102-117.

de Kruijf, J.M., and Welling, A.A., 1988. Incidence of chronic inflammations in gilts and castrated boars. Tijdschrift voor Diergeneeskunde, 113 (8): p. 415-7.

Doran, E., Whittington, F. W., Wood, J.D., and McGivan, J.D., 2002. The relationship between adipose tissue skatole levels, rates of hepatic microsomal skatole metabolism and hepatic cytochrome P450IIE1 expression in two breeds of pig. Animal Science, 74:461- 468.

EFSA (European Food Safety Authority), 2004. Opinion of the Scientific Panel on Animal Health and Welfare (AHAW) on request from the Commission related to welfare aspects of the castration of piglets. (Accessed January 2011).

EU (2009). Consolidated version of the Treaty on the Functioning of the European Union, Official Journal of the European Union C 115 , 09/05/2008 P. 0001 - 0388. (Accessed August 2010).

European Medicine's Agency. 2010. Committee for Medicinal Products for Veterinary Use Summary of Opinion: Improvac. (Accessed 2010-12-07).

Font i Furnols, M., Gispert, M., Guerrero, L., Velarde, A., Tibau, J., Soler, J., Hortós, M., García-Regueiro, J.A., Pérez, J., Suárez, P. and Oliver, M.A. 2008. Consumers' sensory acceptability of pork from immunocastrated male pigs. Meat Science, 80, 1013-1018.

Fredriksen, B., Font i Furnols, M., Lundström, K., Migdal, W., Prunier, A., Tuyttens, F.A.M. and Bonneau, M. 2009. Practice on castration of piglets in Europe. Animal, 3:11, 1480-1487.

Fredriksen, B., Sibeko Johnsen, A.M. and Skuterud, E. 2010. Consumer attitudes towards castration of piglets and alternatives to surgical castration. Research in Veterinary Science. (In press).

Galen/Powell, O.W. (ed.), 2003. Galen - On the Properties of Foodstuffs [De alimentorum facultatibus]. Cambridge, Cambridge University Press.

Gispert, M., Oliver, M.A., Velarde, A., Suarez, P., Pérez, J. and Furnols, M.F. 2010. Carcass and meat quality characteristics of immunocastrated male, surgically castrated male, entire male and female pigs. Meat Science, 85. 664-670.

Godt, J., Kristensen, K., Poulsen, C.S., Juhl, H.J., and Bech, A.C. 1996. Verbraucherstudie zum Thema dänische männliche nicht kastrierte Schweine. Fleischwirtschaft 76 (4), 1996.

Hay, M., Vulin, A., Genin, S., Sales P. and Prunier. A., 2003. Assessment of pain induced by castration in piglets: behavioral and physiological responses over the subsequent 5 days. Applied Animal Behaviour Science, 82:201-218.

Hennessy, D. 2006. Global control of boar taint. Part 4. Immunological castration in action. Pig Progress, 22(6), 2-4.

Hortos, M., Rius, M.A., De Vries, A., Lacoste, A., Gispert, M. and Diestre, A., 2000. In Proceedings 46th International Congress of Food Science and Technology, (Vol.1) (p. 98-99), 27 August - 1 September 2000, Buenos Aires, Argentina.

Jensen, B.B. and Jensen, M.T., 1998. Microbial production of skatole in the digestive tract of entire male pigs. (Chapter 3). In: W.Klinth Jensen (ed.). Skatole and Boar Taint. 41-76. ISBN 87-985837-1-9. Danish Meat Research Institute, Roskilde.

Lessard, M., Taylor, A.A., Braithwaite, L. and Weary, D.M., 2002. Humoral and cellular immune responses of piglets after castration at different ages. Canadian Journal of American Science, 82 (4): 519-526.

Lundström, K., Malmfors, B., Hansson, I., Edqvist, L-E and Gahne, B. 1978. 5 α -androstenone and testosterone in boars. Early testing with HCG, sexual stimulation and diurnal variation. Swedish Journal of Agricultural Research, 8, 171-180.

Lundström, K., Malmfors, B., Malmfors, G. and Stern, S., 1987. Meat quality in boars and gilts after immediate slaughter or lairage for two hours. Swedish Journal of Agricultural Research, 17:51-56.

Lundström, K., Matthews, K.R. and Haugen, J.E., 2009. Pig meat quality from entire males. Animal 3:11, pp 1497-1507.

Mackinnon, J. D. and Pearce, M. C. 2007. Improvac (Pfizer Animal Health): an immunological product for the control of boar taint in entire male pigs: II Practical applications in pig production and potential production benefits. The Pig Journal,59, 68-90.

Malmfors, B., and Lundstrom, K., 1983. Consumer reactions to boar taint, a review. Livestock Production Science, 10, 187-196.

Marx, G., Horn, T., Thielebein, J., Knubel, B., and von Borell, E., 2003. Analysis of painrelated vocalization in young pigs. Journal of Sound and Vibration 266, 687-698.

Matthews, K.R., Homer, D.B., Punter, P., Béague, M.P., Gispert, M., Kempster, A.J., Agerhem, H., Claudi-Madgnussen, C., Fischer, K., Siret, F., Leask, H., Font I Furnols, M. and Bonneau, M., 2000. An international study on the importance of androstenone and skatole for boar taint: III Consumer survey in seven European countries. Meat Science, 54:271-284.

McGlone, J.J., and Hellman, J.M., 1988. Local and general anesthetic effects on behaviour and performance of two and seven-week old castrated and uncastrated piglets. Journal of Animal Science, 66:3049-3058.

McGlone, J.J., Nicholson, R.I., Hellman, J.M., and Herzog D.N., 1993. The development of pain in young pigs associated with castration and attempts to prevent castration-induced behavioral changes. Journal of Animal Science, 71, 1441-1446.

Nadeje, B., Koucky, M., Sevcikova, S., Adamec, T., and Lastovkova, J., 2000. (Assessment of boar and barrow meat). Czech Journal of Animal Science, 45, 539-544.

OIE, 2008. Terrestrial Animal Health Code. (Accessed 2010-12-02).

Patterson, R.L.S., 1968. 5α-androst-16-en-3-one, compound responsible for taint in boar fat. Journal of the Science of Food and Agriculture, 19, 31-38.

Pfizer. 2010. Quality Pork Demands Boar Taint Control. (Accessed 2010-12-02).

Popesko, P., 1980. Atlas d'Anatomie Topographique des Animaux Domestiques. Volume III - Bassins et Extrêmités. Maloine Ed., Paris, France.

Prunier, A., Bonneau, M., von Borell, E.H., Cinotti, S., Gunn, M., Fredriksen, B., Giersing, M., Morton, D.B., Tuyttens, F.A.M. and Verlarde, A., 2006. A review of the welfare consequences of surgical castration in piglets and the evaluation of non-surgical methods. Animal Welfare, 15, 277-289.

Raj, ABM., and Gregory, NG., 1995. Welfare implications of the gas stunning of pigs 1. Determination of aversion to the initial inhalation of carbon dioxide or argon. Animal Welfare, 4: 273-280.

Rydhmer, L., Lundström, K. and Andersson, K. 2010. Immunocastration reduces aggressive and sexual behaviour in male pigs. Animal, pp 1-8.

Rydhmer, L., Zamaratskaia, G., Andersson, H.K., Algers, B. and Lundström, K., 2006. Aggressive and sexual behaviour of growing and finishing pigs reared in groups, without castration. Acta Agriculturae Scandinavica Section A, Animal Science, 56, 109-119.

Sellier, P. and Bonneau, M., 1988. Genetic relationship between fat androstenone level in males and development of male and female genital tract in pigs. Journal of Animal Breeding and Genetics, 105:11-20.

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Steen S., 2004. Personal communication. Department of Archeology, Stockholm University, Sweden.

Stolzenbach, S., Lindahl, G., Lundström, K. Chen, G. and Byrne, D.V., 2009. Perceptual masking of boar taint in Swedish fermented sausages. Meat Science, 81, 580-588.

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Taylor, A.A., and Weary, D.M., 2000. Vocal responses of piglets to castration: identifying procedural sources of pain. Applied Animal Behaviour Science, 70, 17-26.

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Zamaratskaia, G., Rydhmer, L., Andersson, H.K., Chen, G., Lowagie, S., Andersson, K. and Lundström, K. 2008. Long-term effect of vaccination against gonadotropin releasing hormone, using ImprovacTM, on hormonal profile and behaviour of male pigs. Animal Reproduction Science, 108, 37-48.

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Zeng, X.Y., Turkstra, J.A., Jungbloed, A.W., van Diepen, J.Th.M., Meloen, R.H., Oonk, H.B., Guo, D.Z. and van de Wiel, D.F.M., 2002. Performance and hormone levels of immunocastrated, surgically castrated and intact male pigs fed ad libitum high- and lowenergy diets. Livestock Production Science, 77, 1-11.

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