Fish feed and feeding
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This document discusses fish feeding practices. It notes that fish feed determines nutrient loading, growth rates, economic viability, and health. Traditional practices used low-protein, single-ingredient feeds mixed by hand, resulting in low growth rates, yields, and profits. Pellet feeds offer benefits like being finely ground, balanced, easy to store and use, and leading to healthier fish and better water quality and economic outcomes. The key factors in fish feeding are providing a balanced diet at the appropriate amounts, sizes, and frequencies tailored to the fish's age and environment.
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Fish feeding and feeding types
This document discusses fish feeding, including feed quality, storage, feeding correctly, selection, amount estimation, administering feed, feeding methods, frequency, response, assessing response, training fish, and managing wastes. Key points covered include the objectives of maximum growth, good health, and minimum waste; factors that influence feed quality like nutrients, processing, and storage; estimating feeding amounts based on fish size and weight; adjusting feeding based on monitoring and response; and techniques like hand feeding, demand feeders, and avoiding overfeeding.
Nutritional requirement of cultivable fin fish: larvae, juveniles and adults
Fish is among the healthiest foods on the planet. It is loaded with important nutrients, such as protein and vitamin D. Fish is also the world's best source of omega-3 fatty acids, which are incredibly important for human body and brain.
Manufactured feeds are an important part of modern commercial aquaculture, providing the balanced nutrition needed by farmed fish.
In the development of modern aquaculture, starting in the 1970s, fishmeal and fish oil were key components of the feeds for these species. They are combined with other ingredients such as vegetable proteins, cereal grains, vitamins and minerals and formed into feed pellets.
The global supply of fish meal and fish oil is finite and fully utilized. Alternative or nontraditional feedstuffs may differ in terms of taste, smell, texture, and color, as well as nutrient composition, from the traditional feedstuffs, which are produced largely from the natural prey of the fish being raised. Alternative feedstuffs may also contain compounds and antinutritional factors that affect digestive or sensory physiology.
Another important area of fish nutrition for the next 20 years will be larval fish nutrition. Currently, the cost and difficulty of rearing a great number of species from the first feeding to the juvenile stage are the most severe bottlenecks to the development of aquaculture production of nontraditional species.
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Manufactured feeds are an important part of modern commercial aquaculture, providing the balanced nutrition needed by farmed fish.
In the development of modern aquaculture, starting in the 1970s, fishmeal and fish oil were key components of the feeds for these species. They are combined with other ingredients such as vegetable proteins, cereal grains, vitamins and minerals and formed into feed pellets.
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The key components of a minimal water exchange aquaculture system include:
1. Fish Tanks: These are the primary units where fish are raised. The tanks are designed to provide suitable conditions for fish growth, such as appropriate water depth, temperature, and oxygen levels.
2. Filtration System: RAS incorporates various filtration components to remove solid waste, excess nutrients, and harmful substances from the water. Mechanical filters remove large particles, while biological filters foster beneficial bacteria that convert toxic ammonia into less harmful substances.
3. Water Treatment: Water treatment technologies, such as UV sterilization or ozonation, are used to control pathogens and maintain water quality within acceptable parameters. These methods help to ensure a healthy environment for the fish.
4. Oxygenation: Adequate oxygen levels are critical for fish health. RAS employs techniques such as aerators, oxygen injectors, or oxygen cones to maintain dissolved oxygen levels throughout the system.
5. Monitoring and Control: RAS relies on advanced monitoring and control systems to continuously measure and regulate parameters such as temperature, pH, oxygen levels, and water flow. This ensures optimal conditions for fish growth and allows for timely adjustments if any deviations occur.
The benefits of a Minimal Water Exchange Aquaculture System (RAS) include:
1. Water Conservation: RAS significantly reduces water consumption by recycling and reusing water within the system. It helps conserve this valuable resource and minimizes the environmental impact associated with traditional aquaculture, which often requires large amounts of freshwater usage.
2. Improved Water Quality: The water in a RAS undergoes thorough filtration and treatment, resulting in high-quality water conditions for the fish. By removing waste and controlling water parameters, RAS helps minimize the risk of disease outbreaks and promotes optimal fish health.
3. Reduced Environmental Impact: The closed-loop nature of RAS prevents the release of excess nutrients and waste into the surrounding environment, minimizing the impact on natural ecosystems and reducing the risk of pollution.
4. Increased Production Density: RAS allows for higher stocking densities compared to traditional aquaculture systems. The controlled environment and efficient waste management of RAS enable farmers to maximize production within a smaller footprint.
5. Disease Control: The controlled and isolated environment of RAS helps minimize the risk of disease transmission
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Fish nutrition and feed technology 4th sem (full sylabus)
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TRAITS OF IMPORTANT CULTIVABLE FISH AND SHELLFISH & THEIR CULTURE METHODS
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This document discusses semi-intensive fish culture systems. Semi-intensive systems involve small ponds of 0.5 to 1 hectare with stocking densities of 10,000 to 15,000 fish per hectare. These systems develop natural foods through fertilization and provide some supplemental feeding. Yields are moderate at 3 to 10 tons per hectare with high survival rates. Semi-intensive systems are preferred due to their low costs and moderate production while being cleaner than extensive systems. Natural phytoplankton and zooplankton are used as the primary food source, supplemented by feeds containing protein, carbohydrates, and materials that are cheap and available locally like plant waste and manures.
Wim Maartens
This document discusses the building blocks needed for a consistent, safe, and high quality hatchery diet. It states that healthy and well-fed larval shrimp and fish will perform better in grow-out ponds. It then discusses the importance of proper feed formulation using the right ingredients, feed processing technology to maintain quality while reducing costs, and operational procedures like quality control checks to consistently produce a safe product. The overall message is that in the long run, prioritizing quality over lowest cost through all aspects of feed production leads to more efficient and profitable farming.
Feedingof tilapia
This document outlines important considerations for feeding tilapia, including their feeding habits, protein and feed requirements, and feeding strategies. Tilapia are plankton feeders as fry and juveniles and omnivorous as adults. Their protein requirements vary based on size, from 50% for fry to 25-30% for market size fish. Feeds should be provided in mash, crumble, or pellet form depending on fish size. Feeding ratios vary from 10-5% of biomass for fry to 3-2% for market fish. Feeds should be provided multiple times per day with records kept of amounts fed and fish mortality to evaluate feeding program efficiency.
chickens.docx
This document provides information on feeding chickens in different production systems. It discusses the different types of feeds needed including energy feeds, protein feeds, minerals, and vitamins. It also describes how to formulate simple rations and feed chickens at different ages, as well as the proper use of cafeteria and other feeding systems. Key recommendations include using local ingredients tailored to the birds, knowing the nutritional value of feeds, and properly storing and managing feeds.
Meat processing from Organically-Grown Native Pig
Presentation during the Bureau of Agricultural Research (BAR) Seminar Series on December 13, 2018 at RDMIC Bldg., cor. Visayas Ave., Elliptical Rd., Diliman, Quezon City
Unit 20 General principles of computation of ration.pptx
Dr. P. Ravikanth Reddy discusses the importance of properly formulating animal rations to meet their nutritional requirements in a cost effective manner. Imbalanced feeding can result in low production, poor health, and lower profits for farmers. Properly formulated rations should be based on the animal's age, weight, function, and environmental conditions according to industry standards. The ration should contain a balanced mix of nutrients from various feedstuffs selected based on availability, price, and nutritional composition.
Aquaponics
Presentation on aquaponics by Md. Nazmus Sakib.
Student of Fisheries & Aquaculture,
Sher-e-Bangla Agricultural University, (SAU) Dhaka.
Contact :
+8801680017163
+8801790777163
+8801970017163
email : mdnsanik@gmail.com
Aquaculture/Agriculture - Nutrition Linkages in Bangladesh
Presented by Anna Anderson and Dr. Shakuntala Thilsted at the Workshop to Promote Orange Flesh Sweet Potato, held in Jessore, Bangladesh, on the 4th and 5th of May, 2013.
Aquaculture - Nutrition linkages with Feed the Future Aqua, Bangladesh: A Cas...
The AgN-GLEE workshop for Asia was held on 19th - 21st March 2013, in Bangkok.
The purpose of this workshop was to strengthen current and new USAID Feed the Future investments to achieve nutrition outcomes in the Feed the Future target countries.
Presentation made at the workshop: Aquaculture - Nutrition Linkages in FtF Aqua, Bangladesh: a case study
Presenter: Shakuntala Haraksingh Thilsted, Senior Nutrition Scientist, WorldFish.
BMPs_Integrated Systems.pdf
This document discusses fertilization and supplementary feeding practices for smallholder fish farmers in Zambia. It covers applying organic manure like animal waste to ponds to stimulate plankton growth and create a natural food chain for fish. Maintaining green water color is best for tilapia production. Supplementary commercial or homemade feeds provide additional nutrition. Proper water quality monitoring and adjustments to fertilization rates are important. Signs of fish disease and strategies for health management are also outlined.
Nutrition and feeding of native pig
- Native pigs have a higher digestive capacity and microbial activity in their hindgut compared to improved pigs, allowing them to utilize low-quality feed materials.
- General feeding practices for native pigs include feeding a combination of concentrate and forage twice daily. Feeding practices vary based on life stage from sows and boars getting 1-1.5kg of mixed feed and supplements, to suckling piglets getting ad-libitum starter mash and supplements, to weaners getting 0.3-1kg of mixed feed and supplements.
- Sample mixed feeds for native pigs contain ingredients like rice bran, corn, copra, and molasses. Establishing forage production areas can help minimize feed
Feed Production & Feeding strategy for farmers
The document provides recommendations for ideal fish feed production processes and feeding strategies to reduce feed costs. It suggests: 1) selecting suitable and locally available feed ingredients that meet nutrient requirements and are cost effective; 2) properly processing ingredients during manufacturing to improve nutrient utilization; and 3) using non-conventional protein sources like oil cakes to reduce costs. It also recommends: 4) following proper feeding schedules tailored to fish species and water conditions; 5) utilizing compensatory growth to reduce feeding during some periods; and 6) fertilizing ponds adequately to support plankton growth and reduce reliance on feed.
How can aquaculture contribute to healthy diets of the poor?
Presentation by WorldFish scientist Shakuntala Haraksingh Thilsted at World Aquaculture 2015 in Jeju Island, South Korea.
Ai manual chapter 18
The document discusses bovine digestive tract anatomy and physiology, as well as cattle nutrition requirements. It covers the four chambered stomach of cattle and the roles of the reticulum, rumen, omasum and abomasum. It then discusses the digestion process and classification of nutrients such as carbohydrates, proteins and fats. Specific nutritional requirements for dairy cows and beef cattle at different stages of production are also outlined.
AQUAPONICS FISH CULTURE
This document provides information on designing and setting up an aquaponics system. It discusses the components of an aquaponics system including fish tanks, grow beds, pumps, and pipes. It also covers suitable fish species like tilapia and perch, as well as vegetables and herbs that can be grown. Guidelines are provided for calculating system volumes, stocking fish densities, and maintaining water quality.
Pond preparation and management.pptx
Fish pond preparation and farm management. Basics in ponds preparation, seed selection, feed management and disease management. rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr
Lecture 19 nutrition
This document discusses feed ingredients and physical characteristics for formulating aquatic feeds. It covers nutrient requirements, practical feed ingredients like fish meal, soybean meal, and grains. It also discusses non-nutrient diet components like toxins, binders, antibiotics, and antioxidants that are considered when formulating complete feeds for fish and shrimp. Optimal particle size, texture and stability in water are important physical characteristics for feed acceptance by different aquatic species.
Nutrition-Sensitive Fish Agri-food Systems
This document discusses making fish production systems more nutrition-sensitive. It outlines that while aquaculture has grown rapidly, capture fisheries have stagnated or declined. Small fish species from capture fisheries contain more micronutrients than large farmed fish. The document recommends focusing on increasing fish consumption during the critical first 1,000 days of life from pregnancy through age 2. It proposes nutrition-sensitive approaches like polyculture, community-based fisheries management, and integrating fish and vegetable production to improve nutrition.
Master Seminar ppt
The document provides information about a seminar on advances in anaerobic fermentation techniques for conservation of forage for small holders. It discusses:
1) The importance of green fodder for livestock and the need to conserve limited supplies of quality fodder for small holders.
2) Techniques like silage making which involve packing chopped green fodder in an airtight condition to preserve nutrients and make it easily digestible.
3) How silage can be made using inexpensive methods like plastic bags that are easy for small holders to use and provide a nutritious fodder that can be stored for long periods.
Self sustainable domestic aquaculture
This document provides an introduction to self-sustainable domestic aquaculture. It discusses cultivating aquatic organisms like fish, shellfish, and plants under controlled conditions in ponds, cages and tanks. Specific topics covered include the history of aquaculture, different aquaculture practices, recommended species for domestic aquaculture like gouramy and catfish, and considerations for setting up a small home fish pond.
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Fish feed and feeding
- 1. Fish Feed & Feeding Muhammad Shahid Iqbal Director: Tawakkal Tilapia Hatchery & Farms
- 2. Fish Feed: Main Considerations Good Fish Health Optimum Growth Optimum Yield
- 3. Fish Feed: Main Considerations Minimum Waste Reasonable Cost Optimize Profits
- 4. Feed determines: Nutrient loading , water quality Fish growth rate, Economic viability of the enterprise. 60-70% of variable production costs Health status of the fish.
- 5. Traditional Feed Practice: Powder/ Mash feed Single Ingredient: Rice Polish, Chowker etc Hand Mixed combination of 3-4 ingredients
- 6. Traditional Feed Practice: Low protein level Low FCR up to 4:1 or 5:1 Low growth rate
- 7. Traditional Feed Practice: Low water quality Low per acre yield Low per acre profit
- 8. Traditional Feed Practice: Difficult to store: bigger storage required Difficult to use: huge quantity More labor/workers required
- 9. Traditional Feed Practice: Looks cheaper but actually expensive
- 10. Feed Quality: Finely ground Without fines and dust Firm with water stability of 30 minutes Uniform and correct size Good taste and smell
- 11. Feeding Fish Correctly: Feed according to fish age Right feed size Correct amount Feeding at right times
- 12. Adjusting Feed Amount: Weekly at early age Fortnightly at later stage Not Monthly
- 13. Feed Frequency: Juvenile 4-5 times Larger fish 1-3 times Should be consumed within 15 minutes
- 14. Fish’s Feeding Response Depends on: Suitability of the Feed Culture/water Environment Temperature, DO level Other stressors: pollutants, ammonia, pH, handling
- 15. Easy To Store Easy To Use Easy to Eat: less energy waste Easy to monitor its consumption Floating Pellet Feed: Benefits
- 16. Balanced Diet Better Water Quality Healthy Fish Floating Pellet Feed for Rohu
- 17. More Economical Better FCR More Production More Profit Floating Pellet Feed for Rohu
- 18. 18 18 Thank You