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.: Home > Animal Science Papers and Reports > 2015 > Volume 33 Number 4 > Anna Charuta1 **, Marcin Tatara2, 3, Witold Krupski3 , Ewa Poławska4 , Magdalena Ogłuszka4 , Mariusz Pierzchała4 , Iwona Łuszczewska-Sierakowska5

Bone morphometric, densitometric and mechanical properties in 14-month-old ostriches fed experimental diet enriched with linseed

Anna Charuta1 **, Marcin Tatara2, 3, Witold Krupski3 , Ewa Poławska4 , Magdalena Ogłuszka4 , Mariusz Pierzchała4 , Iwona Łuszczewska-Sierakowska5
1 Vertebrates Morphology Department, Department of Zoology, Institute of Biology, Faculty of Natural Science, Siedlce University of Natural Sciences and Humanities, 08-110 Siedlce, Poland 2 Department of Animal Physiology, Faculty of Veterinary Medicine, University of Life Sciences, Akademicka 13, 20-950 Lublin, Poland 3 II Department of Radiology, Medical University in Lublin, Staszica 16, 20-081 Lublin, Poland 4 Institute of Genetics and Animal Breeding PAS, 05-552 Jastrzębiec, Poland 5 Chair of Human Anatomy, Department of Normal Anatomy, Medical University in Lublin, Jaczewskiego 4, 20-090 Lublin, Poland
Abstract :

The aim of the study was to evaluate the influence of the diet enriched with linseed on morphometric, densitometric and mechanical properties of tibio-tarsus and tarso-metatarsus in 14-month-old ostriches. The experimental diet including 4% of linseed was applied to ostriches (N=8) starting from the attainment of 45 kg of body weight, while the control birds (N=8) were fed the standard diet. At the age of 14 months of life, blood samples were collected and the birds were slaughtered to isolate left tibio-tarsus and tarso-metatarsus. *This study was partially financed within the project “BIOFOOD” (innovative, functional products of animal origin) No. POIG.01.01.02-014-090/09, which was co-financed by the European Regional Development Fund and partially financed within the subject of the statutory (244/08/S-Siedlce University of Natural Sciences and Humanities). **Corresponding author: anna.charuta@neostrada.pl; anna.charuta@uph.edu.pl 384 Dual-energy X-ray absorptiometry method was used to evaluate the bone mineral density and bone mineral content. Using quantitative computed tomography, total bone volume, mean volumetric bone mineral density, volumetric bone mineral density of trabecular and cortical bone, cortical bone area, calcium hydroxyapatite density of the trabecular and cortical bone were also determined. Cross-sectional area, second moment of inertia, mean relative wall thickness and cortical index were determined. Maximum elastic strength and ultimate strength of bones were determined using three-point bending test. Total antioxidative capacity in the serum was measured using commercial photometric test. In the experimental group of males, cortical bone area reached significantly higher value, while calcium hydroxyapatite density of the trabecular bone of tibio-tarsus was significantly lower, when compared to sex-matched controls (P<0.05). In conclusion, the experimental diet enriched with 4% of linseed, starting from 45 of kg of body weight of birds, had neither the positive nor negative effects on the evaluated bone properties in 14- month-old ostriches. Thus, higher dietary dosage of linseed or different administration period of the experimental diet should be applied to expect effects on skeletal system quality in growing ostriches.

Keywords :
linseed / ostrich / skeletal system quality / quantitative computed tomography / tibio-tarsus / tarso-metatarsus

Date Deposited : 06 Jan 2016 10:18

Last Modified : 06 Jan 2016 10:18

Official URL: http://www.ighz.edu.pl/?p0=5&p1=34&o=7575

Volume 33, Number 4, October 2015 , ISSN 109-117

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