Apparent Digestibility of Macronutrients and Fatty Acids from Microalgae (Schizochytrium sp.) Fed to Rainbow Trout (Oncorhynchus mykiss): A Potential Candidate for Fish Oil Substitution
Abstract
:Simple Summary
Abstract
1. Introduction
2. Materials and Methods
2.1. Feed Design and Formulation
2.2. Fish and Feeding
2.3. Chemical Composition
2.4. Statistical Analysis
3. Results
4. Discussion
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Chemical Composition | g kg−1 DM 2 |
---|---|
Crude protein | 150 |
Total lipid | 417 |
Fiber | 10 |
Ash | 100 |
Gross energy (MJ kg−1 DM) | 24.33 |
Ingredient | Feed | |
---|---|---|
Reference Diet | Algae Diet | |
Fish meal | 300 | 210 |
Corn gluten meal | 170 | 119 |
Wheat middlings | 163 | 114 |
Soybean meal | 130 | 91 |
Whey | 100 | 70 |
Vitamin/mineral premix 1 | 5 | 4 |
Fish oil, herring | 112 | 78 |
Sipernat 50TM 2 | 20 | 14 |
Schizochytrium spp. Biomass 3 | 0 | 300 |
Chemical Composition | Feed | |
---|---|---|
Reference Diet | Algae Diet | |
DM (%, as fed basis) | 93.4 | 95.6 |
Crude protein (% of DM) | 42.0 | 34.6 |
Total lipid (% of DM) | 17.7 | 27.0 |
Ash (% of dry matter) | 10.0 | 9.7 |
Gross energy (MJkg−1 DM) | 22.7 | 24.1 |
Fatty acid (% total fatty acids) | ||
14:0 | 6.7 | 7.4 |
16:0 | 21.8 | 23.3 |
18:0 | 4.0 | 2.0 |
Total SFA 1 | 40.9 | 36.8 |
16:1 | 6.0 | 2.6 |
18:1n−9 | 11.9 | 4.9 |
24:1 | 0.5 | 0.3 |
Total MUFA 2 | 22.8 | 9.2 |
22:5n−6 | 2.4 | 11.1 |
Total n−6 | 2.4 | 11.1 |
18:3n−3 | 2.5 | 1.1 |
20:5n−3 | 12.3 | 6.8 |
22:6n−3 | 17.5 | 33.7 |
Total n−3 | 32.6 | 41.9 |
Total PUFA 3 | 35.0 | 53.0 |
n−3/n−6 | 13.4 | 3.8 |
Macronutrient | Water Temperature | |
---|---|---|
8 °C | 15 °C | |
Dry matter | 97.8 ± 1.2 | 90.8 ± 11.5 |
Crude protein | 88.2 ± 1.2 | 90.8 ± 0.7 |
Total lipid | 85.8 ± 5.1 | 85.9 ± 4.4 |
Gross energy | 81.9 ± 2.6 | 84.3 ± 3.1 |
Fatty Acids | Water Temperature | |
---|---|---|
8 °C | 15 °C | |
14:0 | 77.0 ± 11.6 | 75.6 ± 2.7 |
16:0 | 70.8 ± 10.6 | 68.7 ± 3.6 |
18:0 | 49.9 ± 11.0 | 64.8 ± 3.7 |
Total SFA 1 | 77.4 ± 8.8 | 70.6 ± 3.4 |
16:1 | 90.7 ± 3.3 | 95.3 ± 0.2 |
18:1n−9 | 84.4 ± 6.7 | 92.0 ± 0.6 |
24:1 | 63.6 ± 14.4 | 75.4 ± 3.8 |
Total MUFA 2 | 87.5 ± 5.2 | 92.1 ± 0.5 |
22:5n−6 | 99.3 ± 0.3 | 98.2 ± 0.1 |
Total n−6 | 99.3 ± 0.3 | 98.2 ± 0.1 |
18:3n−3 | 75.8 ± 12.8 | 88.7 ± 1.3 |
20:5n−3 | 98.4 ± 1.2 | 98.7 ± 0.1 |
22:6n−3 | 99.1 ± 0.1 b | 98.5 ± 0.1 a |
Total n−3 | 98.4 ± 0.7 | 94.9 ± 0.1 |
Total PUFA 3 | 98.7 ± 0.5 | 98.5 ± 0.1 |
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Bélanger, A.; Sarker, P.K.; Bureau, D.P.; Chouinard, Y.; Vandenberg, G.W. Apparent Digestibility of Macronutrients and Fatty Acids from Microalgae (Schizochytrium sp.) Fed to Rainbow Trout (Oncorhynchus mykiss): A Potential Candidate for Fish Oil Substitution. Animals 2021, 11, 456. https://doi.org/10.3390/ani11020456
Bélanger A, Sarker PK, Bureau DP, Chouinard Y, Vandenberg GW. Apparent Digestibility of Macronutrients and Fatty Acids from Microalgae (Schizochytrium sp.) Fed to Rainbow Trout (Oncorhynchus mykiss): A Potential Candidate for Fish Oil Substitution. Animals. 2021; 11(2):456. https://doi.org/10.3390/ani11020456
Chicago/Turabian StyleBélanger, Amélie, Pallab K. Sarker, Dominique P. Bureau, Yvan Chouinard, and Grant W. Vandenberg. 2021. "Apparent Digestibility of Macronutrients and Fatty Acids from Microalgae (Schizochytrium sp.) Fed to Rainbow Trout (Oncorhynchus mykiss): A Potential Candidate for Fish Oil Substitution" Animals 11, no. 2: 456. https://doi.org/10.3390/ani11020456