Evaluation of fish protein concentrate and lactic yeast as protein sources for shrimp feeds.
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Protein sources, hydrolyzed fish protein concentrate and plasmolyzed lactic yeast, were used to partially replace fish meal and soybean meal, respectively, in a basal diet (diet 1) at these levels; 5% fish protein concentrate + 5% lactic yeast (diet 2), 5% fish protein concentrate (diet 3), and 5% lactic yeast (diet 4). A commercial diet was used as control. Diets were fed to Penaeus monodon postlarvae in an eight-week feeding trial in tanks. Parameters measured to determine diet efficiency were weight gain, survival, mass weight and feed conversion efficiency. Growth rates of shrimp postlarvae fed diets 2 and 4 were similar to those of the basal and commercial diets but significantly higher (P<0.05) than diet 3. On the other hand, diet 3 gave the highest survival rate. This value was significantly higher than the commercial diet but not significantly different (P>0.05) from diets 1, 2, and 4. Performance in terms of mass weights gave no significant differences among treatments. Field-testing of the diets showed that both fish protein concentrate and lactic yeast can support shrimp production in brackishwater ponds.
In: Chou, L.M., Munro, A.D., Lam, T.J., Chen, T.W., Cheong, L.K.K., Ding, J.K., Hooi, K.K., Khoo, H.W., Phang, V.P.E., Shim, K.F., Tan, C.H. (eds.). The Third Asian Fisheries Forum. Proceedings of the Third Asian Fisheries Forum, 26-30 October 1992, Singapore. Manila, Philippines: Asian Fisheries Society. pp. 675-677
PublisherAsian Fisheries Society
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Evaluation of dietary freeze-dried Chaetoceros calcitrans supplementation to control Vibrio harveyi infection on Penaeus monodon juvenile Effects of supplementation of diets with freeze-dried Chaetoceros calcitrans to control Vibrio harveyi infection are evaluated through immune responses, and disease resistance of juvenile Penaeus monodon. Total lipid and fatty acid profile of Chaetoceros calcitrans is also analyzed. A challenge infection with 107 cfu/mL concentration of Vibrio harveyi is intramuscularly injected to juvenile Penaeus monodon after 45 days of feeding of diets supplemented with 15 g/kg and 30 g/kg dried Chaetoceros calcitrans. The use of dried Chaetoceros calcitrans is compared with that of ß-1,3 glucan Curdlan, a commercial immune enhancer. Incorporation of 30 g/kg Chaetoceros calcitrans in the diet enhances the immune system of shrimp as effected by high prophenoloxidase activity and plasma protein concentration and is better compared to the commercially available Curdlan. Chaetoceros calcitrans also contains polyunsaturated fatty acids (PUFAs) such as linolenic acid and eicosapentanoic acid (EPA) which are responsible for its antibacterial action against Vibrio harveyi. All these biological activities of Chaetoceros calcitrans add up to increase resistance of the juvenile Penaeus monodon to vibriosis as shown by its high survival rate from the challenge infection with Vibrio harveyi. Therefore, it is worthwhile to use Chaetoceros calcitrans as supplementary feed. Its effect in increasing the immune competence coupled with its antibacterial action, make the shrimp resistant to luminous vibriosis that continues to affect the industry, thereby augmenting aquaculture production.
ArticleC Lim, P Suraniranat & RR Platon -
Kalikasan, The Philippine Journal of Biology, 1979 - University of the Philippines, Los BañosPenaeus monodon postlarvae with an average weight of 15.61 mg each were fed fresh brown mussel meat and artificial diets containing casein, shrimp meal, squid meal and Spirulina as protein sources at a daily rate of 20 per cent of their biomass for 10 days. Results indicate that squid meal is best for growth based on weight gain, diet conversion, and protein efficiency ratio. Fresh brown mussel meat was essentiallly comparable to shrimp meal for growth but was inferior based on protein efficiency ratio and survival rate. Both squid meal and shrimp meal appeared to be good protein sources for P. monodon postlarvae.
Conference paperM Boonyaratpalin - In MR Catacutan, RM Coloso & BO Acosta (Eds.), Development and Use of Alternative Dietary Ingredients or Fish Meal Substitutes in Aquaculture Feed Formulation … Ingredients or Fish Meal Substitutes in Aquaculture Feed Formulation, 9-11 December 2014, Nay Pyi Taw, Myanmar, 2015 - Aquaculture Department, Southeast Asian Fisheries Development CenterFish meal (FM) is the best and main protein source for fish and shrimp feed because of the favorable amino acid profile, highly unsaturated fatty acids, palatability and absence of antinutritional factors. Aquaculture production has increased (about 8-9% a year) and is expected to increase further at the same rate to meet the demand for increase world population and health concern. In this connection, more aquafeed is required. Aquafeed rely much on fish meal (FM) and fish oil (FO) for the supply of major essential nutrients (essential amino acids, essential fatty acids, mineral and attractant). Therefore, more FM is required. However, world fish meal production has been relatively static in the last 15 years and is unlikely to increase further, coupled with public pressure on sustainable feed (fish in fish out ratio or fish meal independent ratio). Thus, levels of FM use in fish feed will have to be reduced and replaced by alternative protein sources for a sustainable increase in aquaculture production. Therefore, the identification and development of alternative feed ingredients that can replace FM is recognized as an international research priority. Consequently, several international integrated projects have been established in Europe, USA and Australia to reduce fish meal and fish oil in fish feeds. A European integrated project involving 14 countries, 32 partners with 4 major programs has been established to develop feeds from sustainable alternatives to fish meal and fish oil to produce safe, healthy seafood; assess the health benefits of fish farmed on the new diets; assess the safety of fish farmed on the new diets; assess perceptions regarding farmed fish and to devise a framework to communicate the risk and benefit of consuming farmed fish to the public and other stake holders. The strategic goal of this project is to tailor aquaculture feeds to produce high-quality fish with significantly reduced use of fish meal (FM) and fish oil (FO).