Reference : Comparison of Cardiac Function in Double-Muscled Calves and in Calves with Convention...
Scientific journals : Article
Human health sciences : General & internal medicine
http://hdl.handle.net/2268/26547
Comparison of Cardiac Function in Double-Muscled Calves and in Calves with Conventional Muscular Conformation
English
Amory, Hélène mailto [Université de Liège - ULg > Département clinique des animaux de compagnie et des équidés > Médecine interne des équidés >]
Desmecht, Daniel mailto [Université de Liège - ULg > Département de morphologie et pathologie > Pathologie spéciale et autopsies >]
Linden, Annick mailto [Université de Liège - ULg > Département des maladies infectieuses et parasitaires > Santé et pathologies de la faune sauvage >]
Mc Entee, Kathleen mailto [Université de Liège - ULg > Département clinique des animaux de compagnie et des équidés > Sémiologie et clinique médicale des petits animaux >]
Rollin, Frédéric [Université de Liège - ULg > Département clinique des animaux de production (DCP) > Médecine interne des équidés, des ruminants et des porcs >]
Beduin, Jean-Marie mailto [Université de Liège - ULg > Département clinique des animaux de production (DCP) > Obstétr. et path. de la reprod. des équidés]
Genicot, Bruno [> > > >]
D'Orio, Vincenzo mailto [Université de Liège - ULg > Département des sciences cliniques > Médecine d'urgence - bioch. et phys. hum. normales et path.]
Lekeux, Pierre mailto [Université de Liège - ULg > Département de sciences fonctionnelles > Physiologie - Doyen de la Faculté de Médecine vétérinaire >]
Apr-1994
American Journal of Veterinary Research
55
4
561-6
Yes (verified by ORBi)
International
0002-9645
[en] During growth, central venous, right ventricular, pulmonary arterial, pulmonary capillary wedge, and systemic arterial pressures, heart rate, and cardiac output were repeatedly measured in 41 Friesian calves, considered as having conventional muscular conformation, and in 19 Belgian White and Blue double-muscled calves. A total of 123 and 70 recordings were collected in conventional and double-muscled calves, respectively. These circulatory indices were calculated: stroke volume, cardiac and stroke indices, pulmonary and systemic pulse pressures, pulmonary and systemic vascular resistance indices, and right and left ventricular work indices. Results indicated that systemic arterial and pulse pressures, as well as cardiac output, stroke volume, cardiac and stroke indices, and right and left ventricular work indices were significantly (P < or = 0.05 to 0.001) lower but, in contrast, pulmonary and systemic vascular resistance indices were significantly (P < or = 0.001) higher in double-muscled than in conventional calves. Right-sided vascular pressures and heart rate were similar in the 2 groups. These results indicated that global cardiac performance may be considerably poorer in double-muscled calves. Diminished cardiac performance of double-muscled calves appears to be related neither to relative bradycardia nor to reduced ventricular preload. The potential role of increased ventricular afterload or of reduced myocardial contractility in double-muscled cattle should be determined by direct measurements.
http://hdl.handle.net/2268/26547

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