Examination of the heart capacity of meat- and fat-type pigs by means of ECG-gated dynamic magnetic resonance imaging and computerized tomography

Z. Petrási, R. Romvári, G. Bajzik, I. Repa, P. Horn

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The cardiovascular capacity of animals is considerably affected by the selection procedure for high lean meat production. To determine the genotype and live weight-related changes of some quantitative characteristics of the pig heart function, serial measurements were carried out. Intensive meat (Hungarian Large White X Belgian Landrace X Pietrain X Norvegian Landrace) and extensive fat type (Mangalica) pigs were examined using whole body magnetic resonance imaging (MRI) and a spiral computer tomograph (CT). Based on our dynamic MRI examination, the following live weight-dependent significant differences were found. (1) The means of the measured left ventricular stroke volume values were at body weights of 30, 60 and 90 kg: 29.1, 41.2, 63.5 and 38.1, 54.0, 55.8 ml in case of meat- and fat-type pigs, respectively. (2) The average cardiac output (CO) values were: 3.8, 4.4, 5.8 and 3.1, 3.9, 3.8 1/min. (3) The estimated relative CO value (skeletal muscle tissue volume measured by CT/CO unit) of the meat- and fat-type pigs were 4.0, 5.6, 6.0 and 2.4, 3.9, 4.8 dm3/(1 min-1), respectively, in sedentary conditions. The significant genotype effect measured with this in vivo method in the relative CO values demonstrates the usability of this technique in selection.

Original languageEnglish
Pages (from-to)113-120
Number of pages8
JournalLivestock Production Science
Volume83
Issue number2-3
DOIs
Publication statusPublished - Oct 2003

Fingerprint

tomography
cardiac output
magnetic resonance imaging
Cardiac Output
Meat
Electrocardiography
Swine
Fats
heart
Tomography
Magnetic Resonance Imaging
meat
swine
lipids
body weight
Belgian Landrace
Genotype
Weights and Measures
Pietrain
lean meat

Keywords

  • Cardiac output
  • Computerized tomography
  • Dynamic magnetic resonance imaging
  • Muscle volume
  • Pig
  • Stroke volume

ASJC Scopus subject areas

  • Animal Science and Zoology
  • veterinary(all)

Cite this

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abstract = "The cardiovascular capacity of animals is considerably affected by the selection procedure for high lean meat production. To determine the genotype and live weight-related changes of some quantitative characteristics of the pig heart function, serial measurements were carried out. Intensive meat (Hungarian Large White X Belgian Landrace X Pietrain X Norvegian Landrace) and extensive fat type (Mangalica) pigs were examined using whole body magnetic resonance imaging (MRI) and a spiral computer tomograph (CT). Based on our dynamic MRI examination, the following live weight-dependent significant differences were found. (1) The means of the measured left ventricular stroke volume values were at body weights of 30, 60 and 90 kg: 29.1, 41.2, 63.5 and 38.1, 54.0, 55.8 ml in case of meat- and fat-type pigs, respectively. (2) The average cardiac output (CO) values were: 3.8, 4.4, 5.8 and 3.1, 3.9, 3.8 1/min. (3) The estimated relative CO value (skeletal muscle tissue volume measured by CT/CO unit) of the meat- and fat-type pigs were 4.0, 5.6, 6.0 and 2.4, 3.9, 4.8 dm3/(1 min-1), respectively, in sedentary conditions. The significant genotype effect measured with this in vivo method in the relative CO values demonstrates the usability of this technique in selection.",
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AU - Repa, I.

AU - Horn, P.

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AB - The cardiovascular capacity of animals is considerably affected by the selection procedure for high lean meat production. To determine the genotype and live weight-related changes of some quantitative characteristics of the pig heart function, serial measurements were carried out. Intensive meat (Hungarian Large White X Belgian Landrace X Pietrain X Norvegian Landrace) and extensive fat type (Mangalica) pigs were examined using whole body magnetic resonance imaging (MRI) and a spiral computer tomograph (CT). Based on our dynamic MRI examination, the following live weight-dependent significant differences were found. (1) The means of the measured left ventricular stroke volume values were at body weights of 30, 60 and 90 kg: 29.1, 41.2, 63.5 and 38.1, 54.0, 55.8 ml in case of meat- and fat-type pigs, respectively. (2) The average cardiac output (CO) values were: 3.8, 4.4, 5.8 and 3.1, 3.9, 3.8 1/min. (3) The estimated relative CO value (skeletal muscle tissue volume measured by CT/CO unit) of the meat- and fat-type pigs were 4.0, 5.6, 6.0 and 2.4, 3.9, 4.8 dm3/(1 min-1), respectively, in sedentary conditions. The significant genotype effect measured with this in vivo method in the relative CO values demonstrates the usability of this technique in selection.

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