Effect of different dietary proteins and fats on the digestive enzymes activities in the common carp fingerlings (Cyprinus carpio L.) reared in floating cages. | ||
| Mesopotamian Journal of Marine Science | ||
| Article 1, Volume 28, Issue 2, December 2013, Pages 121-130 PDF (0 K) | ||
| Authors | ||
| A.Y.J. Al-Saraji; N.A.N. Nasir | ||
| Abstract | ||
| Abstract - The digestive enzyme activities of the common carp fed with different diets of protein sources were investigated during 150 days trial in order to obtain a theoretical basis for artificial diet preparation for the culture of carp fingerlings (Cyprinus carpio L.). The results showed that the fish at treatment 3 (protein 13.82%, fat 4.76% and carbohydrate 67.81%) had high levels of alkaline protease activity. Acid protease activity was high at the treatment 1 (protein 23.68%, fat 16.28% and carbohydrate 43.68%) (p<0.05). In general, the acid protease activity was higher than alkaline protease during the course of the study. Amylase activity reached a highest value in fish fed with none animal protein sources (treatment 3). Lipase activity showed a high level in fish fed with high lipid contents (treatment 1). | ||
| Keywords | ||
| digestive enzymes; Nutrition; common carp; fish meal; float cages | ||
|
Statistics Article View: 62 PDF Download: 25 |
||