Adding Some Of Organic Acids Into Feed Common Carp Fish Cyprinus Carpio L. And Affecting Of Feeding On Coefficient Of Digestion And Rates Of Growth

Abstract

The study has been done in the Fish Laboratory of the Dep. of Animal Production / Faculty of Agriculture / Tikrit University to exhibit the effect of using prepared fish residue powder enrichment by lactic and formic 1%,2% on coefficient of digestion and rates of growth Cyprinus carpio L.This has been given for eighty fish, while the fish has been put in sixteen glass pools each one has five fish. Also, the initial weight had been a 270±1.85g/fish. In general, fish had been fed for two times a day. In this feed which has been prepared from chemical elements for feeding common carpio The T2 and T3 groups had recorded the highest digested coefficient of protein which reached about 83.36±0.58 and 80.33±0.47 respectively, while the digested coefficient of carbohydrate had recorded around 78.59±0.95 and 76.86±0.53 respectively. The indigested coefficient of ash was written down by about 89.14±1.28 and 87.76±0.39 respectively, so these results of T2, T3 are more significant effect than others. Moreover, all experimental groups in the digested fat coefficient were a significant higher compared of the T1 control treatment 79.46±0.99 .The T3 and T5 had recorded the highest rate of weight by around 109.56g and 105.47g respectively, while the T3 group appeared the highest rates of daily growth of 2.17 g/day, relative growth 42.03, and qualitative growth of 0.29 g/day at P≤0.05 level compared of others. The current study shows that the abilities of adding lactic and formic acid by about 1%, 2% respectively into feeding fish has had a critical positive effect on coefficient of digestion and without any side effects by using as a source of animal protein into feed common carp fish.

Keywords

• common carp
• fish residue powder
• feed
• lactic acid
• formic acid
• digestion factors
• growth rates