Pregled bibliografske jedinice broj: 1265285
Carotenoid deposition efficiency in egg yolks of laying hens fed diets differing in maize hybrid
Carotenoid deposition efficiency in egg yolks of laying hens fed diets differing in maize hybrid // Book of Abstracts "58th Croatian and 18th International Symposium on Agriculture" / Carović-Stanko, Klaudija ; Ivan, Širić (ur.).
Dubrovnik, Hrvatska, 2023. str. 198-198 (predavanje, međunarodna recenzija, sažetak, znanstveni)
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Naslov
Carotenoid deposition efficiency in egg yolks of
laying hens fed diets differing in maize hybrid
Autori
Gunjević, Veronika ; Zurak, Dora ; Svečnjak, Zlatko ; Duvnjak, Marija ; Kiš, Goran ; Bedeković, Dalibor ; Janječić, Zlatko ; Pirgozliev, Vasil ; Grbeša, Darko ; Kljak, Kristina
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
Book of Abstracts "58th Croatian and 18th International Symposium on Agriculture"
/ Carović-Stanko, Klaudija ; Ivan, Širić - , 2023, 198-198
Skup
58th Croatian and 18th International Symposium on Agriculture
Mjesto i datum
Dubrovnik, Hrvatska, 11.02.2023. - 17.02.2023
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
maize hybrid ; carotenoids ; deposition efficiency ; laying hen ; egg yolk
Sažetak
Yellow maize is the only component of the hen diet with significant carotenoid content, and its ability to pigment the egg yolk varies among hybrids. Therefore, this study aimed to evaluate the efficiency of carotenoid deposition in the yolk of hens fed diets differing in 15 maize hybrids from six seed companies. By three in each cage, 225 Lohmann Brown hens were allocated to 15 dietary treatments in a completely randomised design (15 treatments×5 cages). The experiment lasted 12 weeks, and eggs for analysis were collected once a week for five weeks after stabilising total carotenoid (TC) content. The carotenoid profile of diets and yolks was determined using HPLC method, and the deposition efficiency of individual and total carotenoids was calculated as the ratio between carotenoid production in the yolk and carotenoid consumption by the diet. Dietary treatments varied in carotenoid profile in both diets and yolks (P < 0.001), resulting in TC content from 10.50 to 24.31 μg/g DM and 20.40 to 43.03 μg/g, respectively. The deposition efficiency of lutein and zeaxanthin was higher than that of α- and β- cryptoxanthin and β-carotene in all dietary treatments (average 24.97 vs. 9.17%). Dietary treatments differed in the deposition efficiency of lutein, zeaxanthin, β-carotene, and TC (P < 0.001), which ranged from 18.72 to 25.58%. The obtained results suggest that some hybrids are more efficient in depositing carotenoids into the yolk and therefore are more suitable for hen nutrition.
Izvorni jezik
Hrvatski
Znanstvena područja
Poljoprivreda (agronomija)
POVEZANOST RADA
Projekti:
IP-2019-04-9063 - Biodostupnost karotenoida kukuruza kod nesilica: utjecaj mikrostrukture zrna i sastava smjese (ColourMaize) (Kljak, Kristina, HRZZ - 2019-04) ( CroRIS)
Ustanove:
Agronomski fakultet, Zagreb
Profili:
Darko Grbeša
(autor)
Veronika Gunjević
(autor)
Kristina Kljak
(autor)
Dalibor Bedeković
(autor)
Zlatko Svečnjak
(autor)
Zlatko Janječić
(autor)
Goran Kiš
(autor)
Dora Zurak
(autor)
Marija Duvnjak
(autor)