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Fatty acid composition of different tissues of free-ranging gray wolf (Canis lupus) in Croatia (CROSBI ID 653511)

Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija

Octenjak, Daria ; Vranković, Lana ; Delaš, Ivančica ; Kusak, Josip ; Reljić, Slaven ; Huber, Đuro ; Stojević, Zvonko ; Aladrović, Jasna Fatty acid composition of different tissues of free-ranging gray wolf (Canis lupus) in Croatia // Book of Abstracts 7th International Congress “Veterinary science and profession” / Brkljača Bottegaro, Nika ; Zdolec, Nevijo ; Vrbanac, Zoran (ur.). Zagreb: Veterinarski fakultet Sveučilišta u Zagrebu, 2017. str. 76-76

Podaci o odgovornosti

Octenjak, Daria ; Vranković, Lana ; Delaš, Ivančica ; Kusak, Josip ; Reljić, Slaven ; Huber, Đuro ; Stojević, Zvonko ; Aladrović, Jasna

engleski

Fatty acid composition of different tissues of free-ranging gray wolf (Canis lupus) in Croatia

Analysis of the fatty acid (FA) composition of tissues is a research tool which can give information on the foraging patterns of free- living animals. In Croatia, research of gray wolf nutritional ecology performed so far has been based on faeces and stomach analysis, which can only show the composition of relatively recent meals. The objective of this study was a better understanding of the foraging patterns and physiological status of free ranging gray wolves, which is essential for management and conservation strategies of wildlife populations. The study was conducted on 36 animals (female, F=14 ; male, M=22) legally harvested during the years of legal quota cull from 2009 to 2012. In Lika and Gorski kotar (LGk), 19 animals were sampled, while in Dalmatia 17 animals were sampled. Samples from m. gluteus superfcialis (MG), m. vastus lateralis (MV), m. semitendinosus (MS), subcutaneous adipose tissue (SAT), perirenal adipose tissue (PAT) and liver were collected. After homogenization and lipid extraction, the FA composition of tissues was determined by gas chromatography with regard to gender, age, body mass, sampling season and sampling location. Age had a signifcant influence on the FA composition of MV, MS, both adipose tissues and liver. In the PAT older F (+2 year) had a higher percentage of C16:1t compared to younger F (p=0.04), as well as a lower percentage of C18:1t compared to older M (p=0.01). Body mass showed a signifcant influence on FA composition of MV, MS and both adipose tissues. In MV heavier M (+25 kg) had a higher percentage of C18:0 and C18:3 (p=0.02, p=0.04, respectively) compared to lighter M. The sampling season had a signifcant influence on the FA composition of all investigated tissues. Males sampled in winter had a higher percentage of C20:4n-6 in PAT (p=0.03) compared to winter F. Finally, location had a signifcant influence on the FA composition of all investigated tissues. Males from LGk had a higher percentage of C18:1t (p=0.01) in SAT than M from Dalmatia. It may be concluded that the composition of FAs, for both F and M, differs according to gender, age, body mass, sampling season and location, and probably reflects different foraging patterns.

fatty acid composition, gray wolf, muscle, liver, adipose tissue

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Podaci o prilogu

76-76.

2017.

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objavljeno

Podaci o matičnoj publikaciji

Book of Abstracts 7th International Congress “Veterinary science and profession”

Brkljača Bottegaro, Nika ; Zdolec, Nevijo ; Vrbanac, Zoran

Zagreb: Veterinarski fakultet Sveučilišta u Zagrebu

Podaci o skupu

7th International Congress “Veterinary science and profession”

predavanje

05.10.2017-07.10.2017

Zagreb, Hrvatska

Povezanost rada

Veterinarska medicina, Biologija