جامعة تكريت - كلية الطب البيطري - جامعة تكريت

Development and feeding value of new protein meals from insect larvae and pupae for aquaculture fish, Rainbow Trout, Oncohorynchus mykiss (wallbaum)

B.A. Khan, L.M. Al-Ani¹,  R. Beck² , L. A. Goonewardene², W. Hirsche³ , A. Suleiman² 

¹ College of Science ,  Anbar University 

² Alberta Agriculture Food and Rural Development, 204, 7000-113 Street, Edmonton, Alberta, Canada T6H 5T6

³ Aquaculture Section, Agriculture Center , Bag 3014, Lethbridge, Alberta, Canada TiJ 4C7

Download Link

Abstract

Growth, feed efficiency and feed intake of rainbow trout (Onchorynchus mykiss) fed meals prepared from dried larvae and pupae (crude protein 58%)of the house fly (Musca domestica) were compared to those fed commercial trout grower feed containing fish meal (crude protein 53%) as a source of protein.  Replacement of 50% commercial feed with 50% larvae meal resulted in similar (11.8 g/d)(P<0.05) growth performance over the 50 day experimental period. However the substitution of commercial feed diet with 100% larval and pupal meal protein sources resulted in 57 to 80% decrease (P<0.01) in the growth rate of the rainbow trout possibly due to lower digestible energy  (2.61 and 2.54 Mcal kg^-1, respectively) content of the larval and pupal meals, compared to 3.62 Mcal kg^-1 for the commercial feed. We concluded that incorporation of insect larvae at 50% level in commercial feed results in compare productive response of the rainbow trout.

Key words: insect larvae. Insect pupae, fish feed rainbow trout.

Abbreviations: AAFRD. Alberta agriculture, Food and Rural Development , ADF,  Acid detergent fibre; CP, Crude protein; DO, Dissolved oxygen; FCR, Food conversion Ratio; FL, Fly larvae; FP, Fly pupae, GLM, General linear model; SAS, statistical analysis system; SGR, Specific growth rate; TDN, Total dissolved Nitrogen; TDP, total dissolved phosphorus; TG, Trout Grower; TKN, Total kjeldahl nitrogen; TN, Total Nitrogen; TSS, Total suspended solids.