body composition; body fatness; meat composition; ultrasound; carcass composition; Pietrain
Abstract :
[en] Real-time ultrasound data collection, consisting specifically of longissimus thoracis muscle echogenicity, was carried out on 80 Pietrain pigs (42 gilts and 34 barrows) using the Pie Medical scanner 200 equipped with an ASP-18 probe and 3.5 MHz to predict intramuscular fat. Two ribs thickness (12th and 13th ribs) was excised from the longissimus thoracis muscle for subsequent ether extract value (EE) determination. The percentage of white pixels in the ultrasound image were related to EE percentage. The EE percentages were 1.44, 1.37 and 1.15 % respectively for the homozygous stress-negative Pietrain (CC), heterozygous stress-negative Pietrain (CT) and homozygous stress-positive Pietrain (TT) individuals. The percentage of white pixels in the longissimus thoracis images were 9.98, 8.75 and 7.79 % respectively for CC, CT and TT genotypes. The barrows had an higher intramuscular fat and white pixel percentage than the gilts. The determination coefficient (R 2) of the EE prediction model originating from the white pixels percentage was 0.35 with a root mean squared error of 0.26 %. These performance could be potentially improved using the calibration phantom of the ASP-18 probe, before taking images.
Disciplines :
Veterinary medicine & animal health Animal production & animal husbandry
Author, co-author :
Youssao, A. K. I.
Verleyen, Vincent ; Université de Liège - ULiège > Département de productions animales > Biostatistique, économie, sélection animale - HEMOLIEGE - Cardiologie - Pathologie spéciale et réhabilitation
Michaux, Charles ; Université de Liège - ULiège > Département de productions animales > Biostatistique, économie, sélection animale
Clinquart, Antoine ; Université de Liège - ULiège > Département de sciences des denrées alimentaires > Technologie des denrées alimentaires
Leroy, Pascal ; Université de Liège - ULiège > Département de productions animales > Biostatistique, économie, sélection animale
Language :
French
Title :
Evaluation par ultrasonographie en temps réel de la teneur en gras intramusculaire du porc Piétrain
Amin V., Wilson D.E., Rousse G., Usoft H. An Ultrasound Image Analysis Software for Beef Quality Research. Beef Research Report, A. S. Leaflet R1437, Iowa State Univ., Ames, 1997, 41-47.
Baulin U., Kohler P., Kallweit E., Brade W. Intramuscular Fat Content in Some Native German Pig Breeds. In Quality of Meat and Fat in Pigs Affected by Genetics and Nutrition, EAAP publication No100, Zürich (22-26 August 1999), 2000, 161-164.
De Smet S. M., Casteel M., Van de Voorde G., Van Oeckel. Approval of two methods of grading for pig carcasses in Belgium. Proceedings of the 48th Annual Meeting of the European Association for Animal Production (p.388), 25-28 August, 1997, Vienna.
De Smet S., Pauwels H., Eeckhout W., Demeyer D. I., Vervaeke I., De Bie S., Van de Voorde G., Casteels M. Relationships between halothane sensitivity, carcass quality and meat quality in Belgian Harvest Pigs. In: Puolanne E., Demeyer D.I., Ruusunen M. and Ellis S. (Eds.), Pork Quality, Genetic and Metabolic Factors. CAB International: Wallingford, 1992, 259-270.
Dourmad J.Y., Etienne M., Noblet J. Mesurer l'épaisseur de lard dorsal des truies pour définir leurs programmes alimentaires. Prod. Anim., 2001, 14, 41-50.
Gresham J. D. Introduction to caracterization of live beef muscle tissue by use of the Pie 200 scanner quality indexing program: An automated system for estimating quality grade of beef animals. The Ultrasound Review. Classic Ultrasound Equipment: Tequesta, 1996, 10 p.
Hanset R., Dasnois C., Scalais S., Michaux C., Grobet L. Effet de l'introgression dans le génome Piétrain de l'allèle normal au locus de sensibilité à l'halothane. Genet. Sel. Evol., 1995c, 27, 77-88.
Hanset R., Dasnois C., Scalais S., Michaux C., Grobet L. Génotype au locus de sensibilité à l'Halothane et caractères de croissance et de carcasse dans une F2 Piétrain X Large White. Genet. Sel. Evol., 1995b, 27, 63-76.
Hanset R., Scalais S., Grobet L. Du Piétrain classique au Piétrain résistant à l'halothane ou Piétrain Réhal. Ann. Méd. Vét., 1995a, 139, 23-35.
Hassen A., Wilson D.E., Amin V.R., Rousse G.H., Hays C.L. Predicting percentage of intramuscular fat using two types of real-time ultrasound equipment. J. Anim. Sci., 2001, 79, 11-18.
Herring W.O., Kriese L. A., Bertrand J.K., Crouch J. Comparison of four real-time ultrasound systems that predict intramuscular fat in beef cattle. J. Anim. Sci. 1998, 76, 364-370.
Herring W.O., Miller D.C., Bertrand J K., Benyshek L. L. Evaluation of machine, technician, and interpreter effect on ultrasonic measures of back fat and longissimus muscle area in beef cattle. J. Anim. Sci., 1994, 72, 2216-2226.
Izquierdo, M. V., Amin V., Wilson D.E., Rouse G. H. Models to Predict Intamuscular Fat Percentage in Live Beef Animals Using Real-time Ultrasound and Image Parameters: Report on Data from 1991-1994. Beef Research Report. Iowa State University, Ames, 1996, 3-6.
Kortz J., Kapelanski W., Grajewska S., Kuryl J., Bocian M., Rybarczyk A. Meat quantity to meat quality relationships when the RYR1 gene effect is eliminated. In Quality of Meat and Fat in Pigs Affected by Genetics and Nutrition, EAAP publication No100, Zürich (22-26 August 1999), 2000, 161-164.
Leach L. M., Ellis M., Sutton D. S., Mckeith F. K., Wilson E. R. The growth performance, carcass characteristic, and meat quality of halothane carrier and negative pigs. J. Anim. Sci., 1996, 74, 934-943.
Leroy P. L., Verleyen V. The New Stress Negative Piétrain Line Developed at the Faculty of Veterinary Medicine of the University of Liège. AIVETs meeting, Brugge, Belgium, 1999b, 27-31.
Leroy P. L., Verleyen V. Le porc Piétrain résistant au stress (ReHal) dans la filière porcine. In: Quatrième Carrefour des Productions Animales. Les démarches de qualité en production de viandes. Gembloux, 27-01, 1999a, 39-40.
Leroy P.L., Verleyen V. Performances of the Piétrain ReHal, the new stress negative Piétrain line. In Quality of Meat and Fat in Pigs Affected by Genetics and Nutrition, EAAP publication No100, Zürich (22-26 August 1999), 2000, 161-164.
Miller K.D., Ellis M., Mckeith F.K., Wilson E.R. Influence of sire line and halothane genotype on growth performance, carcass characteristics, and meat quality in pigs. Can. J. Anim. Sci. 2000, 80, 319-327.
Ministere des Classes Moyennes et de l'Agriculture, Administration Recherche et Developpement. Piétrain Réhal. Ministère des classes moyennes et l'agriculture: Bruxelles, 1998, 32 p.
Organisation Internationale de Normalisation. Viande et produits à base de viande - Détermination de la teneur en matière grasse totale. No: ISO 1443-1973 (F), 1973, 2 p.
Ragland K.D., Brondum J., Christian L.L. Prediction of Intramuscular Fat in Live Swine Using Realtime Ultrasound. 1997 National Swine Improvement Federation, Proceedings. http://mark.asci.ncsu.edu/nsif/97proc/ragland.htm consulté le 26/10/01.
Sather A. P., Bailey D.R.C., Jones S.D.M. Real-Time ultrasound image analysis for the estimation of carcass yield and pork quality. Can. J. Anim. Sci. 1996, 76, 55-62.
Ville H., Rombouts G., Van Hecke P., Perrmans S., Maes G., Spincemaille G., Geers R. An evaluation of ultrasound and nuclear magnetic resonance spectroscopy to measure In Vivo intramuscular fat content of longissimus muscle of pigs. J. Anim. Sci. 1997, 75, 2942-2949.
Youssao A.K.I., Verleyen V., Leroy P.L. Évaluation de la composition de la carcasse et de la qualité de la viande par ultrasonographie chez le porc. Ann. Méd. Vét., 2002a, 146, 19-29.
Youssao, A.K.I., Verleyen, V., Leroy, P.L. Prediction of carcass lean content by real-time ultrasound in Pietrain and negative-stress Pietrain. Anim. Sci. 2002b, 75, 25-32.
