Yıl 2020, Cilt 23 , Sayı 3, Sayfalar 663 - 670 2020-06-30

Kanola Yağı İçeren Yemlerle Beslenen Avrupa Deniz Levreği (Dicentrarchus labrax L.)’nin Sindirim Kanalı Boşaltım Süresinin Belirlenmesi
Determination of Gastric Evacuation Time for European Sea Bass (Dicentrarchus labrax L.) with Feeds Containing Canola Oil

Hatice Asuman YILMAZ [1]


Bu çalışmada Avrupa deniz levreği (Dicentrarchus labrax) yemlerinde kullanılan, balık yağına ikame olarak, üç farklı oranda (0, 50 ve 100) kanola yağı (Kanola, K) içeren yemlerle (20.4 g) 10 hafta boyunca vücut ağırlıklarının %2’si olacak şekilde beslenmiştir. Besleme denemesinden sonra, her tanka (500 L) 20 adet levrek (78.6 ± 3.58 gram) üç tekerrürlü olarak stoklanmıştır. Sindirim kanalının boşaltım süresinin belirlenmesi için, örneklemeden önce bireyler 72 saat aç bırakılarak sindirim sisteminin tamamen boşaltılması sağlanmıştır. Örnekleme başlamadan önce tüm balıklar tek öğün “ad libitum” olarak beslenmiştir. Her deneme grubundan 0., 8., 16., 24., 32. ve 48. saatlerde tesadüfi olarak 9 adet balık örneklenmiş ve sindirim kanalında mide, ön bağırsak ve son bağırsak olmak üzere üç farklı bölgede kalan yemler tespit edilmiştir. Mide, ön bağırsak ve bağırsaklardaki en kısa boşaltım sürelerinin sırasıyla 32.2; 60.9 ve 50.4 saat ile K0 grubunda (%0 kanola yağı) olduğu bulunmuştur, en uzun sürenin ise sırasıyla 41.9; 101.3 ve 70.2 saat ile K100 (%100 kanola yağı) grubunda olduğu belirlenmiştir (P<0.05). Deneme sonunda ulaşılan veriler, yem içerisinde balık yağına ikame olarak kullanılan kanola yağı oranın artması ile boşaltım sürelerinin doğrusal olarak tüm sindirim sisteminde uzadığını ve levrek yemlerinde bu yağın yem formülasyonlarında yüksek oranlarda kullanımını sınırlandıracağını göstermiştir.

2%BW for 10 weeks with three different diets containing 0, 50 and 100 of canola oil (Canola, K), as replacement to fish oil. For this purpose, 20 sea bass (78.6± 3.58 grams) (500 L) were stocked in each tank in triplicate. For the determination of the GET, the individual was left fasted for 72 hours before sampling to ensure complete digestion of the digestive tract. Apart from these fasting periods, the individuals were fed "ad libitum". Nine fish were randomly sampled at 0., 8., 16., 24., 32. and 48. hours from each experimental group and the digestive tract were examined in three different sections: the stomach, the anterior and the posterior intestine. The shortest gastric evacuation time (GET) in the stomach, anterior and posterior intestines were found as 32.2, 60.9 and 50.4 h in K0 (0%K) group, while longest as 41.9, 101.3 and 70.2 h in 100-group, respectively. Final data showed that the increase of the ratio of canola used as a substitute to fish oil in the feed, GET was linearly extended in the whole digestive system and this will limit the use of this plant oil source in feed formulations at high rates.

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Birincil Dil tr
Konular Ziraat
Bölüm ARAŞTIRMA MAKALESİ (Research Article)
Yazarlar

Orcid: 0000-0001-5627-034X
Yazar: Hatice Asuman YILMAZ (Sorumlu Yazar)
Kurum: ÇUKUROVA ÜNİVERSİTESİ, SU ÜRÜNLERİ FAKÜLTESİ
Ülke: Turkey


Teşekkür Çalışmada emeği geçen Çukurova Üniversitesi, Su Ürünleri Fakültesi, Yetiştiricilik Bölüm öğretim üye ve elemanlarına teşekkür ederiz.
Tarihler

Başvuru Tarihi : 18 Kasım 2019
Kabul Tarihi : 17 Ocak 2020
Yayımlanma Tarihi : 30 Haziran 2020

APA YILMAZ, H . (2020). Kanola Yağı İçeren Yemlerle Beslenen Avrupa Deniz Levreği (Dicentrarchus labrax L.)’nin Sindirim Kanalı Boşaltım Süresinin Belirlenmesi. Kahramanmaraş Sütçü İmam Üniversitesi Tarım ve Doğa Dergisi , 23 (3) , 663-670 . DOI: 10.18016/ksutarimdoga.vi.648079