Non-invasive body composition measurement of broiler chickens between 4–18 weeks of age by computer tomography

Andrássy-Baka, G.; Romvári, Róbert; Milisits, Gábor; Sütő, Zoltán; Szabó, András; Locsmándi, L.; Horn, Peter A.

doi:10.5194/aab-46-585-2003

Cited by 13 publications

(12 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For poultry, as for other species, numerous studies have described non-invasive methods for the evaluation of carcass composition and meat and fat traits. For example, methods, such as TOBEC (Latshaw and Bishop, 2001), DXA (Mitchell et al ., 1997;Swennen et al ., 2004), MRI (Mitchell et al ., 1991;Kallweit et al ., 1994;Kövér et al, 1998a;Scollan et al ., 1998;Davenel et al ., 2000) or CT (Bentsen and Sehested, 1989;Svihus and Katle, 1993;Andrassy-Baka et al ., 2003) have been shown to be useful for poultry research. Among these techniques, MRI and CT have been identified as being particularly accurate.…”

Section: Applications Of Rtu To Predict Carcass Composition and Meat mentioning

confidence: 99%

Real-time ultrasound (RTU) imaging methods for quality control of meats

Silva¹,

Cadavez²

2012

Computer Vision Technology in the Food and Beverage Industries

View full text Add to dashboard Cite

Abstract:In this chapter the use of real-time ultrasonography to predict in vivo carcass composition and meat traits will be reviewed. The chapter begins by discussing background and principles of ultrasound. Then aspects affecting the suitability of realtime ultrasonography and image analysis for predicting carcass composition and meat traits of meat producing species and fish will be presented. This chapter also provides an overview of the present and future trends in the application of real-time ultrasonography in the meat industry.

show abstract

Section: Applications Of Rtu To Predict Carcass Composition and Meat mentioning

confidence: 99%

Real-time ultrasound (RTU) imaging methods for quality control of meats

Silva¹,

Cadavez²

2012

Computer Vision Technology in the Food and Beverage Industries

View full text Add to dashboard Cite

show abstract

“…Commercial broilers are economic agricultural field production units in which the objective is to maximize field performance (ANDRASSY-BAKA et al 2003). But, broilers are under the stress due to faster growth rate and negative environmental conditions (McCORKLE and GLICK 1980).…”

Section: Introductionmentioning

confidence: 99%

Effects of ascorbic acid and lighting schedule on tibiotarsus strength and bone characteristics in broilers

et al. 2009

View full text Add to dashboard Cite

This study was conducted to determine the effects of two lighting programs (continuous program; 24 h lighting or intermittent; 12 h daylight followed by three cycles of 1 h lighting and 3 h dark program during the night period) and three different ascorbic acid (AA) supplementations (0, 200 and 400 mg/l, added to water) on some serum parameters, ash content and mechanical properties of tibiotarsus. For this purpose one-day-old male commercial (Ross PM3) broiler chicks (n=600) were divided into 6 treatment groups (2×3) with random replicates (4 replicates per treatment). At the end of 6 weeks, intermittent lighting program negatively influenced serum alkaline phosphatase (ALP) and calcium (Ca) levels (P<0.001) while continuous lighting program had positive influence on bone ash, Ca and phosphorus (P) content (P<0.001). The AA addition decreased serum inorganic phosphorus (Pi) level and positively affected bone chemical characteristics (P<0.001). On the mid-section of the bone, although intermittent lighting had positive effect on bone mechanical parameters (P<0.001), no remarkable effect was observed by AA supplementation. The results of the present study suggest that interaction of intermittent lighting and AA supplementation (200 mg/ l) may have positive effect on chemical composition and mechanical characteristics of bone in broilers.

show abstract

“…In previous studies on rabbits, fish, broiler chickens and turkeys [2,3,17,18], the variables of the prediction equations originated from the summation of the neighboring 10 -10 density values of the Hounsfield intervals between -200 and +200, corresponding to the fat and muscle tissue. These values varied between -80 and 100 without any reduction in the investigated ganders.…”

Section: Chemical Content Determinationmentioning

confidence: 99%

“…In studies with chickens [2] and turkeys [3,6] it has been shown that computer tomography (CT) is a suitable non-invasive technique to measure the volume or mass of the pectoralis muscle and abdominal fat permitting single or repetitive measurements. Romvári et al [17] published a new in vivo 3D method to estimate the volume or yield and the geometrical conformation of the breast muscle of broiler chickens by computer tomography.…”

Section: Introductionmentioning

confidence: 99%

In vivo studies on goose liver development by means of computer tomography

et al. 2005

View full text Add to dashboard Cite

-Commercial geese (Gray Landes) were examined by means of high-resolution spiral computer tomography in order to follow their liver development in vivo. Three ganders were scanned six times before, within and after a force-feeding period. 3D images of the liver were reconstructed from the 2D transverse slices with segmentation and rendering methods. The changes in the external surface, the volume of the liver and also the characteristic Hounsfield values were determined. The livers of another 70 ganders were examined by CT, then by direct chemical analysis (days 0, 13, 18, 19, 20 and 21 of force-feeding). To estimate the chemical composition of the tissue, prediction equations were developed based on the pixel frequency distributions. With partial least squares (PLS) regression, the ether extract and crude protein content could be estimated with R 2 = 0.97 and R 2 = 0.96 accuracy, respectively. Data analysis was complemented with serial blood serum measurements characteristic of liver steatosis. The method applied may be a unique possibility to study the real geometrical relations of liver development and also to describe the qualitative changes of tissue composition during the force-feeding period in vivo, with special regards to selection purposes. goose liver / computerized tomography / liver yield / liver composition Résumé -Études in vivo du développement du foie d'oie par tomographie. Le développement du foie des oies (Landaise grise) a été examiné « in vivo » par tomographie spirale à haute résolution (CT). Les coupes ont été préparées sur six jours différents, avant, pendant et après le gavage, sur trois jars. Les images en trois dimensions (3D) ont été reconstituées à partir des images en 2D, par l'ajustement selon la méthode d'ajustement par segments. La modification de la surface externe et du volume du foie ont été définies par les valeurs Hounsfield. Outre les foies des trois jars, 70 jars ont été encore examinés par la même méthode (CT), ensuite des analyses chimiques directes ont été réalisées aux jours 0, 13, 18, 19, 20 et 21 du gavage. La composition chimique du foie a été estimée par la création d'équations de régression en fonction de la division de fréquence des pixels. A l'aide d'équations des moindres carrés la teneur en graisse et en protéines du foie ont été prédites avec une bonne précision (R 2 = 0,97 et 0,90, respectivement). L'analyse du développement de la stéatose hépatique a été complétée par la mesure des caractéristiques sanguines. La méthode de tomographie « in vivo » donne la possibilité unique de caractériser les corrélations géométriques réelles au cours du développement du foie et de décrire les modifications qualitatives dans la composition du tissu pendant l'engraissement par gavage. Cette méthode pourrait être utilisée en sélection.foie gras / oie / tomographie / rendement / composition

show abstract

Non-invasive body composition measurement of broiler chickens between 4–18 weeks of age by computer tomography

Cited by 13 publications

References 10 publications

Real-time ultrasound (RTU) imaging methods for quality control of meats

Real-time ultrasound (RTU) imaging methods for quality control of meats

Effects of ascorbic acid and lighting schedule on tibiotarsus strength and bone characteristics in broilers

In vivo studies on goose liver development by means of computer tomography

Contact Info

Product

Resources

About