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Considerations on the performance of immunocastrated male pigs

Published online by Cambridge University Press:  10 February 2011

Sam Millet ,
Kwinten Gielkens ,
Daniël De Brabander  and
Geert P. J. Janssens
Sam Millet*
Affiliation:
Institute for Agricultural and Fisheries Research (ILVO), Animal Sciences Unit, Scheldeweg 68, 9090 Melle, Belgium
Kwinten Gielkens
Affiliation:
Institute for Agricultural and Fisheries Research (ILVO), Animal Sciences Unit, Scheldeweg 68, 9090 Melle, Belgium Laboratory of Animal Nutrition, Department of Animal Nutrition, Genetics, Breeding and Ethology, Ghent University, Heidestraat 19, B-9820 Merelbeke, Belgium
Daniël De Brabander
Affiliation:
Institute for Agricultural and Fisheries Research (ILVO), Animal Sciences Unit, Scheldeweg 68, 9090 Melle, Belgium
Geert P. J. Janssens
Affiliation:
Laboratory of Animal Nutrition, Department of Animal Nutrition, Genetics, Breeding and Ethology, Ghent University, Heidestraat 19, B-9820 Merelbeke, Belgium
*
†E-mail: sam.millet@ilvo.vlaanderen.be
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Abstract

With the ongoing social pressure on surgical castration of pigs, an increase in the population of pigs that are either not castrated or immunocastrated (IC) can be expected. In both cases, their nutrient requirements and performance will differ from surgically castrated pigs and will require changes in their management. Immunocastration is performed by giving two injections of a modified gonadotrophin-releasing hormone component along with an adjuvant, at least 4 weeks apart. This paper describes the reported differences in growth performance and carcass quality of IC male pigs in comparison with boars (BO) and barrows (BA). Theoretically, IC pigs remain physiologically boar until the second vaccination and therefore, growth may be comparable with BO until this second vaccination. From then on, IC male pigs consume more feed than BO and grow faster when fed ad libitum. IC showed a faster growth and better feed conversion ratio than BA. When fed restrictedly, BO grow faster and more efficiently than BA and IC. IC have a lower carcass yield than BA and BO, whereas meat percentage is intermediate.

Keywords

boarscarcass qualityimmunocastrationperformanceproductive traits
Type
Full Paper
Information
animal , Volume 5 , Issue 7 , 31 May 2011 , pp. 1119 - 1123
Copyright
Copyright © The Animal Consortium 2011

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References

Aluwé, M, Millet, S, Nijs, G, Tuyttens, FAM, Verheyden, K, De Brabander, HF, De Brabander, DL, Van Oeckel, MJ 2009. Absence of an effect of dietary fibre or clinoptilolite on boar taint in entire male pigs fed practical diets. Meat Science 82, 346–352.CrossRefGoogle ScholarPubMed
Babol, J, Squires, EJ 1995. Quality of meat from entire male pigs. Food Research International 28, 201–212.CrossRefGoogle Scholar
Bonneau, M 1998. Use of entire males for pig meat in the European Union. Meat Science 49 (suppl. 1), S257–S272.CrossRefGoogle Scholar
Bonneau, M, Dufour, R, Chouvet, C, Roulet, C, Meadus, W, Squires, EJ 1994. The effects of immunization against luteinizing-hormone-releasing hormone of performance, sexual development, and levels of boar taint-related compounds in intact male pigs. Journal of Animal Science 72, 14–20.CrossRefGoogle ScholarPubMed
Campbell, RG, Taverner, MR 1988. Genotype and sex effects on the relationship between energy-intake and protein deposition in growing-pigs. Journal of Animal Science 66, 676–686.CrossRefGoogle ScholarPubMed
Claus, R, Lacorn, M, Danowski, K, Pearce, MC, Bauer, A 2007. Short-term endocrine and metabolic reactions before and after second immunization against GnRH in boars. Vaccine 25, 4689–4696.CrossRefGoogle ScholarPubMed
Cronin, GM, Dunshea, FR, Butler, KL, McCauley, I, Barnett, JL, Hemsworth, P 2003. The effects of immuno- and surgical-castration on the behaviour and consequently growth of group-housed, male finisher pigs. Applied Animal Behaviour Science 81, 111–126.CrossRefGoogle Scholar
D'Souza, DN, Mullan, BP 2003. The effect of genotype and castration method on the eating quality characteristics of pork from male pigs. Animal Science 77, 67–72.CrossRefGoogle Scholar
Dunshea, FR, Colantoni, C, Howard, K, McCauley, I, Jackson, P, Long, KA, Lopaticki, S, Nugent, EA, Simons, JA, Walker, J, Hennessy, DP 2001. Vaccination of boars with a GnRH vaccine (Improvac) eliminates boar taint and increases growth performance. Journal of Animal Science 79, 2524–2535.CrossRefGoogle ScholarPubMed
Fàbrega, E, Velarde, A, Cros, J, Suárez, P, Tibau, J, Soler, J 2010. Effect of vaccination against gonadotrophin-releasing hormone, using Improvac®, on growth performance, body composition, behavior and acute phase proteins. Livestock Science 132, 53–59.CrossRefGoogle Scholar
Falvo, RE, Chandrashekar, V, Arthur, RD, Kuenstler, AR, Hasson, T, Awoniyi, C, Schanbacher, BD 1986. Effect of active immunization against LHRH or LH in boars – reproductive consequences and performance traits. Journal of Animal Science 63, 986–994.CrossRefGoogle ScholarPubMed
Fuller, MF, Franklin, MF, Mcwilliam, R, Pennie, K 1995. The responses of growing pigs, of different sex and genotype, to dietary energy and protein. Animal Science 60, 291–298.CrossRefGoogle Scholar
Gispert, M, Angels Oliver, M, Velarde, A, Suarez, P, Pérez, J, Furnols, M 2010. Carcass and meat quality characteristics of immunocastrated male, surgically castrated male, entire male and female pigs. Meat Science 85, 664–670.CrossRefGoogle ScholarPubMed
Hansen, BC, Lewis, AJ 1993. Effects of dietary-protein concentration (Corn-Soybean Meal Ratio) on the performance and carcass characteristics of growing boars, barrows, and gilts – Mathematical descriptions. Journal of Animal Science 71, 2122–2132.CrossRefGoogle ScholarPubMed
Knudson, BK, Hogberg, MG, Merkel, RA, Allen, RE, Magee, WT 1985. Developmental comparisons of boars and barrows. 1. Growth-rate, carcass and muscle characteristics. Journal of Animal Science 61, 789–796.CrossRefGoogle ScholarPubMed
McCauley, I, Cronin, GM, Barnett, JL, Butler, KL, Hennessy, DP, Campbell, RG, Luxford, B, Smits, RJ, Tillbrook, AJ, Dunshea, FR 2000. An immunocastration vaccine (Improvac®) increases growth in individually and group-housed boars. Journal of Animal Science 78 (suppl. 1), 138.Google Scholar
McGlone, JJ, Hicks, TA 1993. Teaching standard agricultural practices that are known to be painful. Journal of Animal Science 71, 1071–1074.CrossRefGoogle ScholarPubMed
Metz, C, Claus, R 2003. Active immunization of boars against GnRH does not affect growth hormone but lowers IGF-I in plasma. Livestock Production Science 81, 129–137.CrossRefGoogle Scholar
Metz, C, Hohl, K, Waidelich, S, Drochner, W, Claus, R 2002. Active immunization of boars against GnRH at an early age: consequences for testicular function, boar taint accumulation and N-retention. Livestock Production Science 74, 147–157.CrossRefGoogle Scholar
Millet, S, Raes, K, Van den Broeck, W, De Smet, S, Janssens, GPJ 2005. Performance and meat quality of organically versus conventionally fed and housed pigs from weaning till slaughtering. Meat Science 69, 335–341.CrossRefGoogle ScholarPubMed
Mohn, S, de Lange, CFM 1998. The effect of body weight on the upper limit to protein deposition in a defined population of growing gilts. Journal of Animal Science 76, 124–133.CrossRefGoogle Scholar
National Research Council 1998. Nutrient requirements of swine, 11th edition. National Academy Press, Washington DC, USA.Google Scholar
Oliver, WT, McCauley, L, Harrell, RJ, Suster, D, Kerton, DJ, Dunshea, FR 2003. A gonadotropin-releasing factor vaccine (Improvac) and porcine somatotropin have synergistic and additive effects on growth performance in group-housed boars and gilts. Journal of Animal Science 81, 1959–1966.CrossRefGoogle ScholarPubMed
Pauly, C, Spring, P, O'Doherty, JV, Kragten, SA, Bee, G 2009. Growth performance, carcass characteristics and meat quality of group-penned surgically castrated, immunocastrated (Improvac®) and entire male pigs and individually penned entire male pigs. Animal 3, 1057–1066.CrossRefGoogle ScholarPubMed
Quiniou, N, Dourmad, JY, Noblet, J 1996a. Effect of energy intake on the performance of different types of pig from 45 to 100 kg body weight. 1. Protein and lipid deposition. Animal Science 63, 277–288.CrossRefGoogle Scholar
Quiniou, N, Noblet, J, Dourmad, JY 1996b. Effect of energy intake on the performance of different types of pig from 45 to 100 kg body weight. 2. Tissue gain. Animal Science 63, 289–296.CrossRefGoogle Scholar
Siers, DG 1975. Live and carcass traits in individually fed Yorkshire boars, barrows and gilts. Journal of Animal Science 41, 522–526.CrossRefGoogle Scholar
Thompson, JM, Sun, F, Kuczek, T, Schinckel, AP, Stewart, TS 1996. The effect of genotype and sex on the patterns of protein accretion in pigs. Animal Science 63, 265–276.CrossRefGoogle Scholar
Turkstra, JA, van Diepen, JTM, Jongbloed, AW, Oonk, HB, van de Wiel, DFM, Meloen, RH 2002. Performance of male pigs immunized against GnRH is related to the time of onset of biological response. Journal of Animal Science 80, 2953–2959.CrossRefGoogle Scholar
Van Milgen, J, Quiniou, N, Noblet, J 2000. Modelling the relation between energy intake and protein and lipid deposition in growing pigs. Animal Science 71, 119–130.CrossRefGoogle Scholar
Weiler, U, Claus, R, Dehnhard, M, Hofacker, S 1996. Influence of the photoperiod and a light reverse program on metabolically active hormones and food intake in domestic pigs compared with a wild boar. Canadian Journal of Animal Science 76, 531–539.CrossRefGoogle Scholar
Xue, JL, Dial, GD, Pettigrew, JE 1997. Performance, carcass, and meat quality advantages of boars over barrows: A literature review. Journal of Swine Health and Production 5, 21–28.Google Scholar
Xue, JL, Dial, GD, Schuiteman, J, Kramer, A, Fisher, C, Marsh, WE, Morrison, RB, Squires, JE 1995. Evaluation of growth, carcass, and compound concentrations related to boar taint in boars and barrows. Journal of Swine Health and Production 3, 155–160.Google Scholar
Zamaratskaia, G, Andersson, H, Chen, G, Andersson, K, Madej, A, Lundstrom, K 2008. Effect of a gonadotropin-releasing hormone vaccine (Improvac(TM)) on steroid hormones, boar taint compounds and performance in entire male pigs. Reproduction in Domestic Animals 43, 351–359.CrossRefGoogle Scholar
Zeng, XY, Turkstra, JA, Jongbloed, AW, van Diepen, JTM, Meloen, RH, Oonk, HB, Guo, DZ, van de Wiel, DFM 2002. Performance and hormone levels of immunocastrated, surgically castrated and intact male pigs fed ad libitum high- and low-energy diets. Livestock Production Science 77, 1–11.CrossRefGoogle Scholar