Effects of fish meal replacement with meat and bone meal using garlic(Allium sativum) powder on growth, feeding, digestive enzymes and apparent digestibility of nutrients and fatty acids in juvenile rainbow trout (Oncorhynchus mykissWalbaum, 1792)

2017 ◽  
Vol 23 (6) ◽  
pp. 1225-1234 ◽  
Author(s):  
M. Esmaeili ◽  
A. Abedian Kenari ◽  
A. N. Rombenso
Keyword(s):  
Fatty Acids ◽  
Rainbow Trout ◽  
Digestive Enzymes ◽  
Allium Sativum ◽  
Fish Meal ◽  
Apparent Digestibility ◽  
Meat And Bone Meal ◽  
Bone Meal ◽  
Meal Replacement ◽  
Fish Meal Replacement

Total fish meal replacement with canola protein isolate in diets fed to rainbow trout (Oncorhynchus mykissW.)

2013 ◽  
Vol 19 (4) ◽  
pp. 535-542 ◽  
Author(s):  
H. Slawski ◽  
F. Nagel ◽  
K. Wysujack ◽  
D.T. Balke ◽  
P. Franz ◽  
...  
Keyword(s):  
Rainbow Trout ◽  
Fish Meal ◽  
Protein Isolate ◽  
Meal Replacement ◽  
Total Fish ◽  
Canola Protein ◽  
Fish Meal Replacement ◽  
Canola Protein Isolate

scholarly journals Protein sources and digestive enzyme activities in jundiá (Rhamdia quelen)

2010 ◽  
Vol 67 (3) ◽  
pp. 259-266 ◽  
Author(s):  
Rafael Lazzari ◽  
João Radünz Neto ◽  
Fabio de Araújo Pedron ◽  
Vania Lucia Loro ◽  
Alexandra Pretto ◽  
...  
Keyword(s):  
Soybean Meal ◽  
Sugar Cane ◽  
Digestive Enzymes ◽  
Fish Meal ◽  
Digestive Enzyme ◽  
Hepatosomatic Index ◽  
Meat And Bone Meal ◽  
Bone Meal ◽  
Protein Sources ◽  
Digestive Enzyme Activities

Digestive enzymes activity influence feed utilization by fish, and its understanding is important to optimize diet formulation. This study reports the digestive enzyme activities of jundiá juveniles fed diets with protein sources. Fish were fed six experimental diets for 90 days: MBY (meat and bone meal + sugar cane yeast), SY (soybean meal + sugar cane yeast), S (soybean meal), MBS (meat and bone meal + soybean meal), FY (fish meal + sugar cane yeast) and FS (fish meal + soybean meal), and then sampled every 30 days and assayed in two intestine sections for digestive enzymes - trypsin, chymotrypsin and amylase - activities; gastric protease was assayed in the stomach. Digestive and hepatosomatic index, intestinal quotient, digestive tract length and weight gain were also measured. Trypsin and chymotrypsin activities were higher (p < 0.0001) in fish fed diets containing animal protein sources (MBY, MBS, FY and FS diets). Alkaline proteases were negatively affected by dietary soybean meal in the SY and S diets. Amylase activity had greater variation between diets and intestine sections. Fish fed MBY and MBS diets showed higher gastric protease activity (p < 0.0001). Weight gains were higher in fish fed the MBS and FS diets (p < 0.05). Highest values (p < 0.05) of digestive tract length were observed in fish fed MBS and FY diets, but no correlation with enzymes activities was found. Hepatosomatic index (HSI) was affected by diet composition. Dietary composition influenced digestive enzymes activities of jundiá.

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