Use plant Lemnaceae.gibba as an alternative to feed fish Grass Carp Ctenopharyngodon idella | ||
| journal of kerbala university | ||
| Article 1, Volume 8, Issue 2, June 2012, Pages 113-120 PDF (0 K) | ||
| Abstract | ||
| Plant of water lentil Lemnaceae.gibba has been used for nutrition of Grass Carp fish Ctenopharyngodon idella Grass Carp in an average weight of 30± 4.6 gram , it has been divided into four categories , three of them are dry , one is wet as the following :- Category A wet of water lentil ( wet meal ) Category B powder of water lentil Plant vegetable starch with dry feed with a rate of 10:90 Category C powder of water lentil with ( dry meal ) with a rate of 50:50 Category D commercial feed Results of experiment proved the effect of temperature between 15.1 – 18.0 Degrees as it is shown in table 3 during the two weeks , the second and third , when temperature was 18 degrees which positively effected in encouraging of fishes to have food regardless of food type used in nutrition , but in the end of last week of experiment due to the decreasing of temperature reaching to 15.1 Degrees , Many death cases have respectively been appeared more than one category ( D-C-B-and A ) as it is shown in table No. ( 4 ) due to the composition of feed in increasing of weight to accept the dry or wet food , some of fish lost weight in the last week due to the decreasing of temperature and fish stopped feeding when temperature reached 15 degrees . Composition of food had an effect on the nature of developing of fish in spite of using of four food categories one of them is wet , the remain three categories are dry , we have noticed that the biggest weight and length increasing happened is in the category ( A ) which is the wet food as it is shown in the table No. ( 5 – 6 ) in the third week because of the availability of proper temperature since fish prefer wet food such as plants and algae , It has been noticed that there is a slight weight and length increasing in categories ( B , C ) Degrees as it is shown in table No. ( 5 – 6 ) when using dry food that contains powder of water lentil Plant and non existence of apparent weight and length increasing in the category ( D ) may be belong to the composition of this food . | ||
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