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Fish feed and nutrition
Welcome to the page about Fish feed and nutrition of Engormix; a source of knowledge on Fish feed and nutrition.
Hi, I have a problem with the bulk density of the aquafeed. Recently we take some changes in our production process to increase the quality of the aquafeed. We put steam and water at 80 °C in the pre conditioner, and a 0.5/1.5 of oil. We add 23% of water and 7% of steam We reduce the speed of shaft to increase the retention time. We take also another die with higher open area to have less pressure to the die. The outgoing pellet from the extruder sink, but in the final product we have...
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Pond production of intensively farmed white-leg shrimps, Litopenaeus vannamei (Boone, 1931), exceeded 2 million t in Central America and Southeast Asia in 2007, achieved through high-quality shrimp-feed supply in modern aquaculture. Despite progress in shrimp nutrition and new feed formulation strategies in recent years, disease outbreaks caused by pathogenic bacteria in shrimp ponds often result in significantly increased mortalities. Recent research in...
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Introduction The feeds for fish can be categorized as floating feeds, slowly sinking feeds, and sinking feeds. Each of these types of feeds are either made by exploring different types and amounts of ingredients, for instance, by controlling starch levels in the feed formulations or by varying the processing parameters, for instance, by modifying the screw profile, changing the screw speed, etc. Floating feeds are mainly made using an extrusion process whereas sinking feeds are...
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Bacteriophages can be used to tackle AMR by reducing the unnecessary use of antibiotics in all animal industries. They are sustainable, highly efficient and stable feed additives. Antimicrobial resistance (AMR) has become an increasingly important threat to public...
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Introduction Animal production relies on the supply of nutritious feeds supporting high growth, welfare and health of animals and the production of high-quality products in an environmentally sustainable and profitable manner. With feed cost representing 50 to 80% of the total production cost, feed manufacturers have a very important role in the overall economic viability of animal agriculture enterprises. Animal production involves a complex “nutritional supply...
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Joe Kearns (JPK Consulting) discusses different factors involved in the production of aquafeed, during FIGAP 2022 in Guadalajara, Mexico....
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Which soya should you use to make fish feed? ...
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Introduction Early fish development is the most important thing that should be known before producing any seeds, especially in the new cultured species or strain. Generally, early development is divided into egg, larvae and juvenile, whereas mostly fish embryos develop from transparent eggs [1] . According to Kendall et al. [2], the egg stage is divided into early, middle and late subdivisions, which end with blastopore closure, freeing of the tail bud from the yolk, and...
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In commercialization and high stocking density of culture practice, the feeding has the significant contribution for fast growth and high yields. The aquafeed is potentiated with many ingredients in highly balanced nutritious components for enhancing the digestive mechanisms in fish and shrimp body. It leads the better body weights, high health, optimum immunity, more survivals, less incidence of disease etc in aquaculture ponds. Spirulina is a unique high...
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Aquasaf Tilapia is a program designed to maximise productivity and sustainability of tilapia production. The program addresses some the most pressing challenges of tilapia such as mass mortalities caused by pathogens, low growth patterns that are associated with chronic gut issues, economic losses due to unoptimized feed conversion ratios, while reducing producer’s dependency on antibiotics....
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The feed additives have the major role to improve feed efficiency and more important to make low Feed Conversion Ratio (FCR) in aquaculture production. Feed additives may be both nutritive and non-nutritive ingredients and work by either direct or indirect methods on the aquatic animal’s system. The feed additives are supplemented in small amounts (alone or in combination) for a specific purpose to improve the quality of shrimp as a final product. Also, it preserves the physical and...
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Rob Strathman (Famsun) discusses how to achieve safe and efficient production of aquafeed and pet food, during FIGAP 2022 in Guadalajara, Mexico....
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INTRODUCTION The acute hepatopancreatic necrosis disease (AHPND) has affected shrimp farming in several countries, like, Vietnam, Malaysia, Thailand, Mexico and in Philipines.1-6 The unique symptoms and characteristics of this disease consisting of massive sloughing of hepatopancreas epithelial cells. The external symptoms in infected shrimp like, empty stomach, bluish body color and shrunken hepatopancreas could be observed. The rate of mortaly is significantly higher...
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The growing cost of diseases in tilapia Bacterial, viral and parasitic diseases can disrupt tilapia production regardless of the biological stage, production system and culture intensity. Streptococcosis (caused mainly by different serotypes...
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After decades of work in Tifton, Georgia, University of Georgia researchers think soldier flies will be a viable alternative to fish meal in aquaculture diets. Early work with the black soldier fly ( Hermetia illucens ) used manure as the growth media, but recent efforts show that food byproducts can be a better soldier fly diet. Catfish grow well on soldier flies and other fish, including tilapia and rainbow trout have been fed the prepupae. The most...
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Introduction Much information is given ( Willem Van Cotthem, 2012 ) on Opuntia ficus-indica as an aloes. In Arabic is called Sabr, Teen Shoky, Teen Barbary, Hendy, Hendia, or Barshomy. It could be used commercially and industrially in treatment of some diseases (eyes, face, bone, prostate, colon, stomach, and intestine) and in cosmetic manufactures. It is a permanent plant grows in arid zones and tolerates drought and salt for its leaves that are filled...
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Introduction The fish nutrition has advanced with the expansion of aquaculture in order to achieve better performance rates. Thus, diets should provide all the nutrients and energy as a way to optimize the fish development. Among the nutrients, the fatty acids are essential for growth and survival, as well one of the most important sources of energy. The fatty acids of the omega 3 family are not produced by the fish, requiring supplementation in...
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Physiological stress is one of the main contributing factors of disease outbreaks and reduced performances in the production of tilapia. Compared to the production of land animals, there are only a limited number of practical and cost effective disease treatment methods for aquaculture. Therefore, good stress management practices are an...
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The latest reports on aquaculture production in Mexico establish that there has been a considerable increase in this agro-industrial activity. This rebound in aquatic organisms production for human consumption originates due to each year more producers are interested in venturing into tilapia (Oreochromissp.) farming. According to official numbers, Mexico is the ninth largest tilapia producer worldwide, with the state of Chiapas being the largest producer in the country thanks to the large...
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Over the past twenty years, much success has been realized in the efforts to reduce the amount of fish meal in aquafeeeds in favor of other feedstuffs. Demand of fish meal as a principal source of protein has decreased due to many successful achievements, but is poised to increase as attention is being directed to the farming of more carnivorous species. A variety of approaches to achieve total substitution or reduction exist and are influenced by feeding habits...
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