Ostalo

Efects of sex and gonadectomy on quality of pork

Željka Cvrtila Fleck, izv.prof ; Zavod za higijenu, tehnologiju i sigurnost hrane Veterinarski fakultet Sveučilišta u Zagrebu, Heinzelova 55, Zagreb, Hrvatska
Lidija Kozačinski, red. prof ; Zavod za higijenu, tehnologiju i sigurnost hrane Veterinarski fakultet Sveučilišta u Zagrebu, Heinzelova 55, Zagreb, Hrvatska
Bela Njari, red.prof ; Zavod za higijenu, tehnologiju i sigurnost hrane Veterinarski fakultet Sveučilišta u Zagrebu, Heinzelova 55, Zagreb, Hrvatska
Ivona Žura Žaja orcid.org/0000-0002-0595-2524
Ana Shek-Vugrovečki ; za fiziologiju i radiobiologiju, Veterinarski fakultet Sveučilišta u Zagrebu Heinzelova 55, Zagreb, Hrvatska
Miljenko Šimpraga, red.prof. ; za fiziologiju i radiobiologiju, Veterinarski fakultet Sveučilišta u Zagrebu Heinzelova 55, Zagreb, Hrvatska
Suzana Milinković-Tur, red. prof ; za fiziologiju i radiobiologiju, Veterinarski fakultet Sveučilišta u Zagrebu Heinzelova 55, Zagreb, Hrvatska
Nina Poljičak-Milas ; Zavod za patološku fiziologiju, Veterinarski fakultet Sveučilišta u Zagrebu Heinzelova 55, Zagreb, Hrvatska
Matko Kardum ; Zavod za patološku fiziologiju, Veterinarski fakultet Sveučilišta u Zagrebu Heinzelova 55, Zagreb, Hrvatska
Dejan Marenčić ; Visoko gospodarsko učilište u Križevcima, Milislava Demerca 1, Križevci, Hrvatska
Hrvoje Brzica ; Zavod za antomiju, histologiju i embriologiju, Veterinarski fakultet Sveučilišta u Zagrebu Heinzelova 55, Zagreb, Hrvats
Jelena Šuran ; Zavod za farmakologiju i toksikologiju Veterinarski fakultet Sveučilišta u Zagrebu Heinzelova 55, Zagreb, Hrvatska
Nino Mačešić ; Klinika za porodništvo i reprodukciju Veterinarski fakultet Sveučilišta u Zagrebu Heinzelova 55, Zagreb, Hrvatska

Sažetak

The paper investigated di"erences between sexes and the e"ect of gonadectomy (castration and ovariectomy) on the amount and com-
position of fat, intensity of lipid peroxidation, activity of antioxidant enzymes and quality of meat associated with technological properties
and chemical composition present in large lumbar muscle (m. Psoas major) samples of pigs after fattening. The research was conducted on fattening pigs of the Swedish Landrace breed. At four weeks old, the castration (5 males) and ovariectomy (5 females), as well as simulated castration (5 males) and simulated ovariectomy (5 females) were performed. The activity of glutathione peroxidase, superoxide dismutase, gamma-glutamy transferase and lactate dehydrogenase, as well as the concentrations of cholesterol, triglycerides, phospholipides and malondialdehyde were determined for each meat sample. Moreover, the e"ect of sex and castration or ovariectomy on the quality of meat associated with due technological properties and chemical composition was determined. Obtained results con!rmed signi!cant di"erences in the amount and composition of fat between sexes. Pig’s sex had no signi!cant e"ect on the oxidative stability of muscles. In terms of gonadectomy, the results indicated that large lumbar muscles of ovariectomized females were a"ected by oxidative changes the most. According to the criteria established by Hofmann (1994) and Van Laack (2000), meat samples of ovariectomized females could based on pH results be considered PSE meat. The analysis of fat content indicated a signi!cant di"erence between samples of ovariectomized females and other sample groups.

Ključne riječi

gonadectomy; activity of antioxidant enzymes; quality of meat

Hrčak ID:

154711

URI

https://hrcak.srce.hr/154711

Datum izdavanja:

7.3.2016.

Podaci na drugim jezicima: hrvatski njemački talijanski španjolski

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