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Influence of sex and immunocastration on feed intake behavior, skatole and indole concentrations in adipose tissue of pigs

Published online by Cambridge University Press:  19 September 2012

U. Weiler ,
M. Götz ,
A. Schmidt ,
M. Otto  and
S. Müller
U. Weiler*
Affiliation:
Fachgebiet Verhaltensphysiologie landwirtschaftlicher Nutztiere, Universität Hohenheim, Garbenstraße 17, 70599 Stuttgart, Germany
M. Götz
Affiliation:
Fachgebiet Verhaltensphysiologie landwirtschaftlicher Nutztiere, Universität Hohenheim, Garbenstraße 17, 70599 Stuttgart, Germany
A. Schmidt
Affiliation:
Thüringer Lehr-, Prüf- und Versuchsgut GmbH, Am Feldschlößchen 9, 99439 Buttelstedt, Germany
M. Otto
Affiliation:
Mitteldeutsche Schlachtschweineerzeugergemeinschaft w.V., Remsaer Str. 17–19, 04600 Altenburg, Germany
S. Müller
Affiliation:
Abteilung Tierproduktion, Thüringer Landesanstalt für Landwirtschaft, August-Bebel-Straße 2, 36433 Bad Salzungen, Germany
*
†E-mail: [email protected]
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Abstract

Feed intake behavior was studied between 9 weeks of age and slaughter in a total of 36 gilts, 32 immunocastrates, 33 surgically castrated barrows and 33 boars from 36 litters. Consequences for the concentration of substances contributing to off odor of pork (skatole, indole) were evaluated. Animals were kept in groups of 12 pigs of the same sex and treatment and fed ad libitum (13.4 MJ ME, 17% CP, 1.1% lysine). Individual feed intake behavior was recorded continuously by an electronic feeder. Immunocastration was carried out with two injections of Improvac with at least 4 weeks between both injections (1st: 12 to 17 weeks of age, 2nd: 19 to 21 weeks of age). Feed intake/day increased from an average of 0.91 ± 0.02 kg/day up to 3.15 ± 0.04 kg/day before slaughter. This increase was associated with a 50% reduction in the number of meals/day (from 15.8 ± 0.44 to 7.2 ± 0.29 meals/day). The larger meal sizes resulted from an increase in both, the duration of feed intake/meal and the feed intake rate (g/min). In addition, sex and treatment differences were observed: Feed intake in boars was lower than in all other groups due to a reduction in the number of meals/day and in the time spent feeding/day. In females, time spent feeding/day was quite similar to boars, but resulted from a higher number of meals of shorter duration. Barrows had a significantly higher feed intake because of a higher number of meals/day resulting in more time spent feeding/day. The feed intake rate was similar in boars, gilts and barrows and showed an increasing trend during the study, starting from about 15 g/min up to four times the amount. Immunocastration affected feed intake behavior severely, especially the meal size increased dramatically because of higher feed intake rate, which exceeded that of all other groups by 25% at the end of the study. The number of meals/day was not influenced by immunocastration and was almost identical to that of boars. Highest skatole concentrations were measured in fat of boars, whereas indole concentrations were higher in immunocastrates than in all other groups. In gilts and barrows, skatole concentrations were related to growth rate. Additionally, the feeding rate was an important factor explaining the variability in skatole/indole concentrations in adipose tissue. The physiological mechanisms however need further clarification.

Keywords

immunocastrationfeed intake behaviorskatoleindoleboar taint
Type
Behaviour, welfare and health
Information
animal , Volume 7 , Issue 2 , February 2013 , pp. 300 - 308
Copyright
Copyright © The Animal Consortium 2012

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References

Babol, J, Squires, EJ, Lundström, K 1999. Relationship between metabolism of androstenone and skatole in intact male pigs. Journal of Animal Science 77, 84–92.Google Scholar
Bauer, A, Lacorn, M, Danowski, K, Claus, R 2008. Effects of immunization against GnRH on gonadotropins, the GH-IGF-I axis and metabolic parameters in barrows. Animal 2, 1215–1222.Google Scholar
Brunius, C, Rasmussen, MK, Lacoutiére, H, Andersson, B, Zamaratskaia, G 2012. Expression and activities of hepatic cytochrome P450 (CYP1A, CYP2A and CYP2E1) in entire and castrated male pigs. Animal 6, 271–277.Google Scholar
Bonavera, JJ, Dube, MG, Kalra, PS, Kalra, SP 1994. Anorectic effects of estrogen may be mediated by decreased neuropeptide-Y release in the hypothalamic paraventricular nucleus. Endocrinology 134, 2367–2370.Google Scholar
Claus, R, Raab, S 1999. Influences on skatole formation from tryptophan in the pig colon. In Tryptophan, serotonin and melantonin: basic aspects and application (ed. G Hueter, W Kochen, TJ Simot and H Steinhardt), pp. 679–684. Cluwer Academic/Plenum Publishers NY, Boston, Dortrecht, London, Moskow.Google Scholar
Claus, R, Weiler, U 1987. Umwelteinflüsse auf das geschlechtsspezifische Wachstumsvermögen. Übersichten Tierernährung 15, 301–316.Google Scholar
Claus, R, Weiler, U 1994. Endocrine regulation of growth and metabolism in the pig: a review. Livestock Production Science 37, 245–260.Google Scholar
Claus, R, Bernal-Barragan, H, Dehnhard, M 1991. Effect of gonadal hormones in mature cyclic sows on feed intake and skatole concentrations in faeces. Journal of Animal Physiology and Animal Nutrition 66, 61–68.Google Scholar
Claus, R, Herbert, E, Dehnhard, M 1997. Comparative determination of the boar taint steroid androstenone in pig adipose tissue by a rapid enzyme immunoassay and an HPLC-method. Archiv für Lebensmittelhygiene 2, 27–30.Google Scholar
Claus, R, Raab, S, Röckle, S 1996. Skatole concentrations in blood plasma of pigs as influenced by the effects of dietary factors on gut mucosa proliferation. Journal of Animal Physiology and Animal Nutrition 76, 170–179.Google Scholar
Claus, R, Weiler, U, Herzog, A 1994. Physiological aspects of androstenone and skatole formation in the boar: a review with experimental data. Meat Science 38, 239–305.Google Scholar
Cronin, GM, Dunshea, FR, Butler, KL, McCauley, I, Barnett, JL, Hemsworth, PH 2003. The effects of immuno- and surgical-castration on the behaviour and consequently growth of group-housed, male finisher pig. Applied Animal Behaviour Science 81, 111–126.Google Scholar
Czaja, JA 1984. Sex differences in the activational effects of gonadal hormones on feed intake and body weight. Physiology and Behavior 33, 553–558.CrossRefGoogle Scholar
Dehnhard, M, Claus, R, Hillenbrand, M, Herzog, A 1993. High-performance liquid chromatographic method for the determination of 3-methylindole (skatole) and indole in adipose tissue of pigs. Journal of Chromatography 616, 205–209.Google Scholar
Doran, E, Whittington, FW, Wood, JD, McGivan, JD 2002a. 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.Google Scholar
Doran, E, Whittington, FM, Wood, JD, McGivan, JD 2002b. Cytochrome P450IIE1 (CYP2E1) is induced by skatole and this induction is blocked by androstenone in isolated pig hepatocytes. Chemico Biological Interactions 140, 81–92.Google 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.Google Scholar
Fàbrega, E, Velarde, A, Cros, J, Gispert, M, Suarez, P, Tibau, J, Soler, J 2010. Effect of vaccination against gonadotropin-releasing hormone, using Improvac®, on growth performance, body composition, behaviour and acute phase proteins. Livestock Science 132, 53–59.Google Scholar
Fredriksen, B, Font i Furnols, M, Lundström, K, Prunier, A, Tuyttens, F, Migdal, W 2009. Practice on castration of piglets in Europe. Animal 3, 1480–1487.Google Scholar
Fredriksen, B, Lium, BM, Marka, CH, Heier, BT, Dahl, E, Choinski, JU 2006. Entire male pigs in a farrow-to-finish system. Effects on androstenone and skatole. Livestock Science 102, 146–154.CrossRefGoogle Scholar
Giersing, M, Lundström, K, Andersson, A 2000. Social effects and boar taint: significance for production of slaughter boars (sus scrofa). Journal of Animal Science 78, 296–305.Google Scholar
de Haer, LCM, de Vries, AG 1993. Feed intake patterns of and feed digestibility in growing pigs housed individually or in groups. Livestock Production Science 33, 277–292.Google Scholar
Hansen, LL, Larsen, AE, Jensen, BB, Hansen-Moller, J, Barton-Gade, PA 1994. Influence of stocking rate and faeces deposition in the pen at different temperatures on skatole concentration (boar taint) in subcutaneous fat. Animal Production 59, 99–110.Google Scholar
Hansen, LL, Stolzenbach, S, Jensen, JA, Henckel, P, Hansen-Møller, J, Syriopoulos, K 2008. Effect of feeding fermentable fibre-rich feedstuffs on meat quality with emphasis on chemical and sensory boar taint in entire male and female pigs. Meat Science 80, 1165–1173.Google Scholar
Jaros, P, Burgi, E, Stärk, KDC, Claus, R, Hennessy, D, Thun, R 2005. Effect of active immunization against GnRH on androstenone concentration, growth performance and carcass quality in intact male pigs. Livestock Production Science 92, 31–38.Google Scholar
Jensen, BB, Jensen, MT 1998. Microbial production of skatole in the digestive tract of entire male pigs. In Skatole and boar taint (ed. WK Jensen), pp. 41–76. Danish Meat Research Institute, Roskilde, Denmark.Google Scholar
Jensen, MT, Cox, RP, Jensen, BB 1995. 3-Methylindole (skatole) and indole production by mixed populations of pig fecal bacteria. Applied Environmental Microbiology 61, 3180–3184.Google Scholar
Morales, J, Gispert, M, Hortos, M, Pérez, J, Suárez, P, Piñeiro, C 2010. Evaluation of production performance and carcass quality characteristics of boars immunized against gonadotropin-releasing hormone (GnRH) compared with physically castrated male, entire male and female pigs. Spanish Journal of Agricultural Research 8, 599–606.Google Scholar
Morrison, RS, Hemsworth, PH, Cronin, GM, Campbell, RG 2003. The effect of restricting pen space and feeder availability on the behaviour and growth performance of entire male growing pigs in a deep-litter, large group housing system. Applied Animal Behaviour Science 83, 163–176.Google Scholar
Pauly, C, Spring, P, O'Doherty, JV, Ampuero Kragten, S, Bee, G 2009. Growth performance, carcass characteristics and meat quality of group penned surgically castrated, immunocastrated (Improvac) and entire males pigs and individually penned entire male pigs. Animal 3, 1057–1066.Google Scholar
Prunier, A, Bonneau, M, von Borrell, EH, Cinotti, S, Gunn, M, Fredriksen, B, Giersing, M, Morton, DB, Tuyttens, FAM, Velarde, A 2006. A review of the welfare consequences of surgical castration in piglets and the evaluation of non-surgical method. Animal Welfare 15, 277–289.Google Scholar
Rasmussen, MK, Zamaratskaia, G, Ekstrand, B 2011. Gender-related differences in cytochrome P450 in porcine liver – implication for activity, expression and inhibition by testicular steroids. Reproduction in Domestic Animals 46, 616–623.Google Scholar
Schmidt, T, Calabrese, JM, Grodzycki, M, Paulick, M, Pearce, MC, Rau, F, von Borell, E 2011. Impact of single-sex and mixed-sex group housing of boars vaccinated against GnRF or physically castrated on body lesions, feeding behaviour and weight gain. Applied Animal Behaviour Science 130, 42–52.Google Scholar
Santollo, J, Torregrossa, A, Eckel, LA 2011. Estradiol acts in the medial preoptic area, arcuate nucleus, and dorsal raphe nucleus to reduce feed intake in ovariectomized rats. Hormones and Behavior 60, 86–93.Google Scholar
Weiler, U, Claus, R, Schnoebelen-Combes, S, Louveau, I 1998. Influence of age and genotype on endocrine parameters and growth performance: a comparative study in wild boars, meishan and large white boars. Livestock Production Science 54, 21–31.Google Scholar
Von Borell, E, Baumgartner, J, Giersing, M, Jäggin, N, Prunier, A, Tuyttens, FAM 2009. Animal welfare implications of surgical castration and its alternatives in pigs. Animal 3, 1488–1496.Google Scholar
Young, JM, Cai, W, Dekkers, JCM 2010. Effect of selection for residual feed intake on feeding behavior and daily feed intake patterns in Yorkshire swine. Journal of Animal Science 89, 639–647.Google Scholar
Zamaratskaia, G, Chen, G, Lundstrom, K 2006. Effects of sex, weight, diet and hCG administration on levels of skatole and indole in the liver and hepatic activities of cytochromes P4502E1 and P4502A6 in pigs. Meat Science 72, 331–338.Google Scholar
Zamaratskaia, G, Zlabek, V, Chen, G, Madej, A 2009. Modulation of porcine cytochrome P450 enzyme activities by surgical castration and immunocastration. Animal 3, 1124–1132.Google Scholar
Zamaratskaia, G, Andersson, HK, Chen, G, Andersson, K, Madej, A, Lundström, K 2008a. Effect of a gonadotropin-releasing hormone vaccine (Improvac™) on steroid hormones, boar taint compounds and performance in entire male pigs. Reproduction in Domestic Animals 43, 351–359.Google Scholar
Zamaratskaia, G, Rydhmer, L, Andersson, HK, Chen, G, Andersson, K, Lundstrom, K 2008b. Boar taint is related to the endocrine and anatomical changes at puberty but not to aggressive behavior in entire male pigs. Reproduction in Domestic Animals 40, 500–506.CrossRefGoogle Scholar