Galluzzo Francesco Giuseppe, Cumbo Valentina, Cammilleri Gaetano, Calabrese Vittorio, Pulvirenti Andrea, Cicero Nicola, Pantano Licia, Mascetti Antonietta, Lo Cascio Giovanni, Bacchi Emanuela, Macaluso Andrea, Vella Antonio, Seminara Salvatore, Ferrantelli Vincenzo
Dipartimento Alimenti, Istituto Zooprofilattico Sperimentale della Sicilia, Via Gino Marinuzzi 3, 90129 Palermo, Italy.
Dipartimento di Scienze della Vita, Università degli Studi di Modena e Reggio Emilia, Via Università 4, 41121 Modena, Italy.
Animals (Basel). 2022 Apr 20;12(9):1069. doi: 10.3390/ani12091069.
is a Procellariforms seabird having a very representative colony in Linosa Island (Southern Italy). The adult forms of produce a pasty oil from their proventriculus to feed their chicks during the rearing period. In this work, we examined the fatty acids composition of the stomach oil of from Linosa Island by gas chromatography with flame ionization detection (GC-FID). The samples were collected at 20 and 70 days after hatching. Twenty different fatty acids (FAs) were identified. Saturated fatty acids (SFA) were the most abundant in percentage (41.6%) at day 20 followed by polyunsaturated fatty acids (PUFA, 38.7%) and monounsaturated fatty acids (MUFA, 19.7%). MUFAs were the most abundant in samples collected at day 70 (53.8%), followed by SFAs (36.6%) and PUFAs (9.8%). Oleic acid (C18:1ω9) in the samples on day 70 was 4 times higher than that in the samples on day 20. The Principal Component Analysis (PCA) verified a clear separation of the stomach oil samples in two groups, according to the day of sampling. The results obtained confirm the role of FAs analysis of stomach oil to understand the ecology and breeding behaviour of , highlighting a resemblance with signatures recorded in marine organisms of Linosa Island.
是一种鹱形目海鸟，在利诺萨岛（意大利南部）有一个非常有代表性的栖息地。成年个体在育雏期会从腺胃分泌出一种糊状油脂来喂养雏鸟。在这项研究中，我们采用气相色谱 - 火焰离子化检测法（GC - FID）检测了来自利诺萨岛的该物种胃油中的脂肪酸组成。样本在孵化后20天和70天采集。共鉴定出20种不同的脂肪酸（FAs）。饱和脂肪酸（SFA）在孵化后20天的样本中占比最高（41.6%），其次是多不饱和脂肪酸（PUFA，38.7%）和单不饱和脂肪酸（MUFA，19.7%）。在孵化后70天采集的样本中，MUFA占比最高（53.8%），其次是SFA（36.6%）和PUFA（9.8%）。孵化后70天样本中的油酸（C18:1ω9）含量是孵化后20天样本的4倍。主成分分析（PCA）证实，根据采样日期，胃油样本可明显分为两组。所得结果证实了胃油脂肪酸分析在了解该物种生态和繁殖行为方面的作用，突出了其与利诺萨岛海洋生物记录特征的相似性。
