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A performance test for boar taint compounds in live boars

Published online by Cambridge University Press:  05 December 2012

C. Baes ,
S. Mattei ,
H. Luther ,
S. Ampuero ,
X. Sidler ,
G. Bee ,
P. Spring  and
A. Hofer
C. Baes*
Affiliation:
School of Animal, Forest and Food Sciences, Agronomy Department, Bern University of Applied Sciences, Langgasse 85, CH-3052 Zollikofen, Switzerland
S. Mattei
Affiliation:
Department of Swine Medicine, University of Zurich, Winterthurerstrasse 260, CH-8057 Zurich, Switzerland
H. Luther
Affiliation:
Department of Breeding, SUISAG, Allmend 8, CH-6204 Sempach, Switzerland
S. Ampuero
Affiliation:
Analytics Department, Agroscope Liebefeld-Posieux ALP, rte de la Tioleyre 4, CH-1725 Posieux, Switzerland
X. Sidler
Affiliation:
Department of Swine Medicine, University of Zurich, Winterthurerstrasse 260, CH-8057 Zurich, Switzerland
G. Bee
Affiliation:
Analytics Department, Agroscope Liebefeld-Posieux ALP, rte de la Tioleyre 4, CH-1725 Posieux, Switzerland
P. Spring
Affiliation:
School of Animal, Forest and Food Sciences, Agronomy Department, Bern University of Applied Sciences, Langgasse 85, CH-3052 Zollikofen, Switzerland
A. Hofer
Affiliation:
Department of Breeding, SUISAG, Allmend 8, CH-6204 Sempach, Switzerland
*
†E-mail: baesc@ethz.ch
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Abstract

Genetically reducing boar taint using low-taint lines is considered the most sustainable and economic long-term alternative to surgical castration of male pigs. Owing to the high heritability of the main boar taint components (androstenone, skatole and indole), breeding is an excellent tool for reducing the number of tainted carcasses. To incorporate boar taint into breeding programmes, standardized performance testing is required. The objective of this study was to develop and formally present a performance test for the main boar taint compounds on live breeding candidates. First, a standardized performance test for boar taint was established. A biopsy device was developed to extract small tissue samples (200 to 300 mg) from breeding candidates. Quantification of boar taint components from these small samples using specialized chemical extraction methods proved accurate and repeatable (r = 0.938). Following establishment of the method, biopsy samples of 516 live boars (100 to 130 kg live weight) were collected in the second step. Various mixed linear models were tested for each boar taint compound; models were ranked in terms of their information content. Pedigree information of 2245 ancestors of biopsied animals was included, and genetic parameters were estimated using univariate and multivariate models. Androstenone (in μg/g liquid fat (LF): mean = 0.578, σ = 0.527), skatole (in μg/g LF: mean = 0.033, σ = 0.002) and indole (in μg/g LF: mean = 0.032, σ = 0.002) levels obtained by biopsy were plausible. Heritability estimates for androstenone calculated with univariate (0.453) and multivariate (0.452) analyses were comparable to those in the literature. Heritabilities for skatole (0.495) and indole (0.550) were higher than that for androstenone. Genetic and phenotypic correlations were similar to those published previously. Our results show that data on boar taint compounds from small adipose samples obtained by biopsy provide similar genetic parameters as that described in the literature for larger samples and are therefore a reliable performance test for boar taint in live breeding candidates.

Keywords

boar taintperformance testingbiopsyvariance componentsgenetic parameters
Type
Breeding and genetics
Information
animal , Volume 7 , Issue 5 , May 2013 , pp. 714 - 720
Copyright
Copyright © The Animal Consortium 2012

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Footnotes

*

Both authors contributed equally to this manuscript.

References

Aluwé, M, Tuyttens, FAM, Bekaert, KM, De Smet, S, De Brabander, DL, Millet, S 2012. Evaluation of various boar taint detection methods. Animal 6, 1868–1877.Google Scholar
Ampuero Kragten, S, Verkuylen, B, Dahlman, H, Hortos, M, Garcia-Regueiro, JA, Dahl, E, Andresen, O, Feitsma, H, Mathur, PK, Harlizius, B 2011. Inter-laboratory comparison of methods to measure androstenone in pork fat. Animal 1, 1634–1642.Google Scholar
Bonneau, M 1987. Effects of age and live weight on fat 5α-androstenone levels in young boars fed two planes of nutrition. Reproduction Nutrition Development 27, 413–422.Google Scholar
de Roest, K, Montanari, C, Fowler, T, Baltussen, W 2009. Resource efficiency and economic implications of alternatives to surgical castration without anaesthesia. Animal 3, 1522–1531.Google Scholar
European Declaration on Alternatives to Surgical Castration 2011. Retrieved November 21, 2011, from http://ec.europa.eu/food/animal/welfare/farm/initiatives_en.htmGoogle Scholar
European Food Safety Authority (EFSA) 2004. Welfare aspects of the castration of piglets. The EFSA Journal 91, 1–18.Google Scholar
Fredriksen, B, Sibeko Johnsen, AM, Skuterud, E 2011. Consumer attitudes towards castration of piglets and alternatives to surgical castration. Research in Veterinary Science 90, 352–357.Google Scholar
Fredriksen, B, Font i Furnols, M, Lundström, K, Migdal, W, Prunier, A, Tuyttens, FAM, Bonneau, M 2009. Practice on castration of piglets in Europe. Animal 3, 1480–1487.Google Scholar
Geverink, NA, Ruis, MAW, Eisen, R, Lambooij, E, Blokhuis, HJ, Wiegant, WM 1999. The effect of shot biopsy on behavior, salivary cortisol, and heart rate in slaughter pigs. Journal of Animal Science 77, 1614–1649.Google Scholar
Grindflek, E, Meuwissen, THE, Aasmundstad, T, Hamland, H, Hansen, MHS, Nome, T, Kent, M, Torjesen, P, Lien, S 2011. Revealing genetic relationships between compounds affecting boar taint and reproduction in pigs. Journal of Animal Science 89, 680–692.Google Scholar
Groeneveld, E, Kovaˇc, M, Mielenz, N 2010. VCE User's Guide And Reference Manual Version 6.0. Retrieved November 7, 2011, from ftp://ftp.tzv.fal.de/pub/vce6/doc/vce6-manual-3.1-A4.pdfGoogle Scholar
Irie, M, Sakimoto, M 1992. Fat characteristics of pigs fed fish oil containing eicosapentaenoic and docosahexaenoic acids. Journal of Animal Science 70, 470–477.Google Scholar
Keller, K, Wicke, M, von Lengerken, G, Kretzschmar, B 1997. Zusammenhang zwischen der Androstenonkonzentration im Fettgewebe von Besamungseber und den Fett-Androstenonwerten und Leistungparametern ähnlicher Nachkommen. Archives of Animal Breeding 40, 317–330.Google Scholar
Lundström, K, Asp-Malmfors, B, Hansson, I 1973. A simple biopsy technique for obtaining fat and muscle samples from pigs. Swedish Journal of Agricultural Research 3, 211–213.Google Scholar
Lundström, K, Matthews, KR, Haugen, JE 2009. Pig meat quality from entire males. Animal 3, 1497–1507.Google Scholar
Mathur, PK, ten Napel, J, Bloemhof, S, Heres, L, Knol, EF, Mulder, HA 2012. A human nose scoring system for boar taint and its relationship with androstenone and skatole. Meat Science 91, 414–422.Google Scholar
Neumaier, A, Groeneveld, E 1998. Restricted maximum likelihood estimation of covariances in sparse linear models. Genetics Selection Evolution 1, 3–26.Google Scholar
Patterson, RLS 1968. 5-androst-16-en-3-one, compound responsible for taint in boar fat. Journal of the Science of Food and Agriculture 19, 31–38.Google Scholar
Prelog, V, Ruzicka, L 1944. Untersuchungen über Organextrakte. Helvetica Chimica Acta 27, 61–63.Google Scholar
R Development Core Team 2008. R: a language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. ISBN 3-900051-07-0, URL http://www.R-project.orgGoogle Scholar
Rossi, F 2001. Assessing sensory panelist performance using repeatability and reproducibility measures. Food Quality and Preference 12, 467–479.Google Scholar
Schneeberger, M, Barwick, SA, Crow, GH, Hammond, K 1992. Economic indices using breeding values predicted by BLUP. Journal of Animal Breeding and Genetics 109, 180–187.CrossRefGoogle Scholar
Sellier, P, Bonneau, M 1988. Genetic relationships between fat androstenone levels in males and development of male and female genital tract in pigs. Journal of Animal Breeding and Genetics 105, 11–20.Google Scholar
Sellier, P, Le Roy, P, Fouilloux, MN, Gruand, J, Bonneau, M 2000. Responses to restricted index selection and genetic parameters for fat androstenone level and sexual maturity status of young boars. Livestock Production Science 63, 265–274.Google Scholar
Tuyttens, FAM, Vanhonacker, F, Verhille, B, De Brabander, D, Verbeke, W 2011. Pig producer attitude towards surgical castration of piglets without anaesthesia versus alternative strategies. Research in Veterinary Science 92, 524–530.Google Scholar
Vold, E 1970. Fleischproduktionseigenschaften bei Ebern und Kastraten. Iv. Organoleptische und gaschromatografische Untersuchungen wasserdampfflüchtiger Stoffe des Rückenspeckes von Ebern. Meldinger fra Norges landbrukshøgskole 49, 1–25.Google Scholar
von Borell, E, Baumgartner, J, Giersing, M, Jä ggin, N, Prunier, A, Tuyttens, FAM, Edwards, SA 2009. Animal welfare implications of surgical castration and its alternatives in pigs. Animal 3, 1488–1496.Google Scholar
Willeke, H, Claus, R, Muller E Pirchner, F, Karg, H 1987. Possibilities of breeding for low 5-androstenone content in pigs. Journal of Animal Breeding and Genetics 104, 64–73.Google Scholar
Windig, JJ, Mulder, HA, ten Napel, J, Knol, EF, Mathur, PK, Crump, RE 2012. Genetic parameters for androstenone skatole indole and human nose scores as measures of boar taint and their relationship with finishing traits. Journal of Animal Science 90, 2120–2129.Google Scholar
Zamaratskaia, G, Squires, EJ 2009. Biochemical, nutritional and genetic effects on boar taint in entire male pigs. Animal 3, 1508–1521.Google Scholar
Supplementary material: Image

Baes Supplementary Material

Supplementary Figure S1: a) Biopsy device for extracting adipose tissue. The device is equipped with a compression spring and a dismountable cylindrical grip. The apex of the reusable needle is slightly tapered. The needle (b) has a window for removing tissue cores.

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Supplementary material: Image

Baes Supplementary Material

Supplementary Figure S2: Optimal location and angle of biopsy.

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