Correlations between first order echotextural characteristics and chemical composition of pectoralis major muscles in broiler chickens receiving different dietary fat supplements-Reference-Cited by-同舟云学术

Correlations between first order echotextural characteristics and chemical composition of pectoralis major muscles in broiler chickens receiving different dietary fat supplements

Published:2021-09-17 Issue:0 Volume:0 Page:
ISSN:2300-8733
Container-title:Annals of Animal Science
language:en
Short-container-title:

Author:

Ahmadi Bahareh¹,Jamieson Mark¹,Ahmadi Behnaz²,Połtowicz Katarzyna³,Nowak Joanna³,Murawski Maciej⁴,Małopolska Martyna⁵,Schwarz Tomasz⁶,Bartlewski Pawel M.¹

Affiliation:

1. Department of Biomedical Sciences, Ontario Veterinary College , University of Guelph , 50 Stone Rd. , Guelph , ON , , Canada

2. Department of Mechanical and Mechatronics Engineering , University of Waterloo , 200 University Ave. W , Waterloo , ON , , Canada

3. Department of Poultry Breeding , National Research Institute of Animal Production , Balice n. Kraków , Poland

4. Department of Nutrition, Animal Biotechnology and Fisheries, Faculty of Animal Science , University of Agriculture in Kraków , Rędzina 1B , Kraków , Poland

5. Department of Pig Breeding , National Research Institute of Animal Production , Balice n. Kraków , Poland

6. Department of Genetics, Animal Breeding and Ethology, Faculty of Animal Science , University of Agriculture in Kraków , Al. Mickiewicza 24/28 , Kraków , Poland

Abstract

Abstract This study examined the quantitative relationships among ultrasonographic image attributes and chemical composition of the pectoralis major muscles in broiler chickens that received four different dietary fat supplements (Group SO: soybean oil; Group FO: flaxseed oil; Group SO+FO: soybean oil+flaxseed oil; and Group BT: beef tallow; n=10 birds/group). Ultrasonograms of birds’ pectoral muscles, in a transverse (T) and longitudinal (L) plane, were obtained just before slaughter at 6 weeks of age and were subjected to digital image analyses to determine mean pixel intensity (MPI) and pixel heterogeneity values (standard deviation of numerical pixel values; MPH; a.k.a first order echotextural characteristics). Thirty-eight chemical characteristics of the muscles were determined post-mortem (crude fat, protein, and dry matter as well as fatty acid profiles) and were analyzed for correlations with the echotextural variables. A total of 12 (L-MPI: 7; L-MPH: 4; and T-MPH: 1 correlation), 5 (L-MPI: 2; L-MPH: 2; and T-MPI: 1 correlation), 15 (L-MPI: 10; T-MPI: 4; and T-MPH: 1 correlation) and 8 (L-MPI: 2; L-MPH: 1; and TMPH: 5 correlations) significant correlations were recorded in Groups SO, FO, SO+FO and BT, respectively. When the data were pooled for all 40 birds studied, significant correlations with echotextural attributes were recorded for eighteen different chemical constituents, with the strongest overall correlation found between crude fat content and T-MPI (r=0.52, P=0.0005). In conclusion, there exists a potential application for ultrasonographic imaging in situ combined with computerized image analysis to estimate certain chemical constituents of pectoralis major muscles in broiler chickens. However, the existence and strength of correlations among ultrasonographic image attributes and muscle composition are affected by the source of dietary fat and relative abundance (“threshold concentrations”) of individual chemical components.

Publisher

Walter de Gruyter GmbH

Link

https://www.sciendo.com/pdf/10.2478/aoas-2021-0074

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