A retrospective study of Doppler echocardiographic findings in horses referred in a Belgian equine clinic.

Poster (2010, September)

Reproductive Performance of the Ardennaise Chicken Breed under Traditional and Modern Breeding Management Systems

in International Journal of Poultry Sciences (2009), 8(5), 446-451

Enhancing the use of traditional chicken breeds is necessary to insure long-term conservation of global genetic diversity in poultry. A logical start in this process is to evaluate performance. The ... [more ▼]

Enhancing the use of traditional chicken breeds is necessary to insure long-term conservation of global genetic diversity in poultry. A logical start in this process is to evaluate performance. The objective of this study was to estimate reproductive traits in the Ardennaise chicken breed under traditional and modern management systems. Reproductive performance indicated lighting programs [Natural (NAT) or Artificial (ART) day length] were highly significant for egg weight, hatchability (p<0.001), early and mid-term embryonic mortality (p<0.01). Feeding treatments [ad libitum (AL) or mild Feed-restriction (FR)] varied greatly with egg weight, hatchability, fertility (p<0.001) and late embryonic mortality (p<0.05). Most precocious age at first egg (23 weeks), longest duration of laying period (>27 weeks), utmost maximum production peak (56.67%), largest egg number (70.13 eggs/hen) and number of chicks hatched (24.10 chicks/hen) were performed under ART-AL. Heaviest egg weight (53.21g), highest fertility (70.20%), greatest hatchability (55.58%), highest liveability during rearing (95.74%) and lay (100%), lowest early (3.51%) and mid-term embryonic mortality (1.17%) were achieved under NAT-AL. To summarize, most of traits studied in the Ardennaise chicken were moderate when compared to those expected by broiler breeders. [less ▲]

Prédiction du gras intermusculaire du porc Piétrain par l'ultrasonographie en temps réel

in Viandes & Produits Carnés - Hors série "10èmes journée Sciences du Muscle et Technologies des Viandes" (2004)

Prédiction de la composition de la carcasse et de la qualité de viande du Piétrain stress négatif par ultrasonographie en temps réel

in Annales de Médecine Vétérinaire (2003), 147(6), 403-410

The lean meat proportion and longissimus thoracis intramuscular fat percentage were predicted in negative-stress Pietrain pigs by real-time ultrasound using Pie Medical 200. The optimal probing site for ... [more ▼]

The lean meat proportion and longissimus thoracis intramuscular fat percentage were predicted in negative-stress Pietrain pigs by real-time ultrasound using Pie Medical 200. The optimal probing site for the estimation of carcass lean content percentage was first identified. The models for the prediction of carcass lean content proportion by ultrasound measurement were developed. Comparisons between Fat Lean Meter, ultrasonic device Piglog 105 and Pie Medical 200 were made for lean meat proportion estimation in Pietrain carcasses. The intramuscular fat percentage was predicted from the white pixel percentage in the longissimus thoracis ultrasound image [less ▲]

Evaluation par ultrasonographie en temps réel de la teneur en gras intramusculaire du porc Piétrain

in Annales de Médecine Vétérinaire (2002), 146(4), 249-255

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 ... [more ▼]

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. [less ▲]

Evaluation de la composition de la carcasse et de la qualité de la viande par ultrasonographie chez le porc

in Annales de Médecine Vétérinaire (2002), 146(1), 19-29

Prediction of carcass lean content by real-time ultrasound in Piétrain and negative stress Piétrain

in Animal Science (2002), 75

Les attentes des consommateurs, des nouveaux critères de sélection porcine

in Sixième Carrefour des productions animales "La sélection animale au service de la Société" (2000)

Le porc Piétrain résistant au stress (ReHal) dans la filière porcine

(1999)