The effects of 17α-methyltestosterone on chemical composition, fillet efficiency, visceral fat and hepatosomatic index of rainbow trout, Oncorhynchus mykiss
Abstract
The 17α-Methyltestosterone treats carried out in two periods. The Rainbow trout fingerlings (6.43±0.31 g.) were fed 2.5 and 5 mg/kg MT in first period, lasted 92 days. 2.5 mg/kg MT in second period lasted 96 days. Generally in the this study, 17α-MT was treated 2.5 mgMT/kg-diet, throughout 92 days, and 188 days and 5 mgMT/kg-diet, throughout 92 days to rainbow trout. The group of 2.5 mgMT/kg-diet was separate two groups and then one of them was fed with 2.5 mgMT/kg-diet go on in the second period, lasted 96 days. Other group was fed with control food. Normal feed without MT was given to the control fishes. As a consequence of the analysis, it was found out that MT does not cause a change in the crude protein and crude ash (p>0.05), however it increased the values of the crude fat and decreased the value of moisture (p<0.05) of fish-meat. It not effected the fillet efficiency (p>0.05), however it effected percent of internal organ and visceral fat content and HSI (p<0.05). In the fish, treated 2.5 mg MT/kg-diet, throughout 188 days, visceral fat and percent of internal organ were decreased.
Keywords
Kaynakça
- Akkılıç, M. ve Sürmen S. 1979. Yem maddeleri ve hayvan besleme laboratuarı el kitabı. AÜ, Veteriner Fakültesi, yayın no.357, Ankara.
- Alsted, N.S. 1991. Studies on the reduction of discharges from fish farms by modification of the diet. In: Cowey, C.B., Cho, C. Y. (Eds.), Nutritional strategies and aquaculture waste. Univ. Guelph, Ontario, Canada, 77-89.
- α-Methyltestosterone on Body
- Composition of Eels (Anguilla anguilla L.) Aquaculture 50, 23-30.
- Degani G. 1986. Effect of combined Dietary 17 Beta-Estradiol and 17 alfa- Methyltestosterone on Growth and Body Composition of European Eels (Anguilla anguilla). Aquaculture 59, 169-175.
- Gannam, A. L. and Lovell, R. T. 1991. Growth and Bone Development in Channel Catfish Fed 17α-methyltestosterone in Production Ponds. Journal of the world Aquaculture soc vol 22 no: 2, 95-100pp.
- Göğüş, A., Kolsarıcı, N. 1992. Su Ürünleri Teknolojisi. A.Ü. Ziraat Fakültesi Yayınları:1243 Ders Kitabı:358.
- Hepher, B. 1990. Nutrition of Pond Fishes. Cambridge University Press Cambridge New York, 386p.
Ayrıntılar
Birincil Dil
Türkçe
Konular
-
Bölüm
Araştırma Makalesi
Yazarlar
Şenol Güzel
Kenan Güllü
Yayımlanma Tarihi
1 Haziran 2006
Gönderilme Tarihi
7 Aralık 2015
Kabul Tarihi
-
Yayımlandığı Sayı
Yıl 1970 Cilt: 23 Sayı: 2